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1760-UM001D-EN-P, Pico Controllers User Manual

1. RUN PROGRAM Circuit Diagram Parameter STOP RUN 4 STOP Display PARAMETER INFO PROGRAM Parameters SET CLOCK DELETE PROG CARD PROGRAM DELETE PROG DELETE CARD PROGRAM DELETE PROG CARDEN e DEVICE gt CARD gt REPLACE CARD gt DEVICE DELETE CARD DEVICE PROGRAM 4 CARD gt DEVICE REPLACE STOP RUN RUN DELETE CARD PARAMETER STOP DEVICE gt CARD INFO CARD gt DEVICE DELETE CARD gt DELETE PROGRAM qu x S STOP RUN Bx Mu T2 M S Cl N F INFO Y O1 SET CLOCK Parameter Display Information Display of Device PROGRAM RUN PARAMETER INFO Y pc TC LCD SET CLOCK OS 1 00 027 Display for CRC 02752 Setting Clock PROGRAM RUN A PARAMETER INFO HH MM HH MM 14 23 SET CLOCK Y SET CLOCK DD MM DD MM 17 03 SUMMER TIME YEAR YEAR 2004 Publication 1760 UM001D EN P September 2005 g 1 10 System Overview Main Menu Setting Summer Time PROGRAM RUN 4 PARAMETER INFO SET CLOCK SET CLOCK V S
2. Number 1 2 3 4 5 6 7 8 Timing relays in us 40 120 160 220 300 370 440 540 Counters in us 40 100 160 230 300 380 460 560 Analog value processors inus 120 180 220 260 300 360 420 500 1760 L12xxx 10 75 mm 0 423 in 50 mm 1 97 in fu i I 45 mm 110 mm 1 77 in 90 mm 3 54 in 1 102 mm 4 02 in 4 5 mm 0 177 in 77 5 mm 1 87 in Y 56 5 mm 2 22 in MID a 58 mm 2 28 in 35 75 mm Tain 715mm 2 81 in Specifications 15 1760 L18xxx 1760 L20xxx and Expansion Modules 16 25 mm 16 25 mm 0 640 in 0 640 in zi 75 mm 2 96 in Wg M d _ 45 110 1 77 in 30mm 4 33 in 3 54 in 102 mm 4 02 in 4 5 mm 0 177 in T 47 5 mm 1 87 i Y 56 5 mm 2 22 in LJ 58 mm 2 28 in 107 5 mm 4 23 in Pico 1760 OW2 Expansion Module 90 3 54 102 401 110 4 3 M4 7 5 0 295 35 5 1 4 Publication 1760 UM001D EN P September 2005 g A 16 X Specifications Dimensions of the 1760 RM Remote Processor modules 176 RM 1760 00 and 176 RM 0000000
3. EE i i if E amp toe Ou m sal Se 8 225 30 118 225 362 143 089 gt o5 205 a 75 295 0 81 432 17 e a M 275 1 08 Publication 1760 UM001D EN P September 2005 Appendix B Circuit Diagram Form See page 4 21 for an example that shows how to use these forms for planning and preparing your Pico circuit diagrams Customer Program Date Page Comment Publication 1760 UM001D EN P September 2005 B 2 Circuit Diagram Form Customer Program Date Page Timing relays TRG LT TRG LT RES RES Analog comparators ANALOG ANALOG FA A Timing switches ON ON OFF OFF Up down counters 00 0 DIR DIR 4 CNT CNT C RES RES Publication 1760 UM001D EN P September 2005 ON OFF TRG RES ANALOG DIR CNT RES Glossary The following terms are used throughout this manual Refer to the Allen Bradley Industrial Automation Glossary Publication Number AG 7 1 for a complete guide to Allen Bradley technical terms Analog input The DC versions of Pico have analog inputs I7 and I8 The input voltage range is 0 V
4. Relay type Pico Symbol 1760 L12xxx 1760 L18xxx Coil Parameter 1760 L20xxx Function Controller Outputs 0 01 to 08 Q1 to Q8 X Internal Marker Bits M M1 to M16 M1 to M16 X Internal Marker Bits N N1 to N16 N1 to N16 X Counters C C1 to C16 C1 to C16 X X Timers T T1 to T16 T1 to T16 X X Real Time Clock B Orit Os Os i Operating Hours Counters 0 01 to 04 01 to 04 X X Analog Setpoint Compare A A1 to A16 A1 to A16 X Text Display D D1 to D16 D1 to D16 X X Jump to Label 1 to 8 1 to 8 X mm Outputs or Internal Marker S 1 to S8 as marker S1 to S8 X Its Year Time Switch Y Y1 to Y8 Y1 to Y8 X Master Reset Z Z1 to Z3 Z1 to Z3 X 1 Not available on NC models 2 This applies only to the 1760 LxxBWB xx and 1760 L12DWD Publication 1760 UM001D EN P September 2005 4 6 Draw a Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 The switching behavior of these relays is set using coil functions and parameters The coil functions and parameters are listed with the description of each function relay type The options for setting output and marker relays are listed with the description of each coil function Circuit Diagram Display In the circuit diagram contacts and coils are connected from left to right from contact to coil The circuit diagram is created on a hidden grid containing contact fields coil fields and circuit conn
5. 30K Q 5W resistor or 100 nF 275V ac capacitor OOQOCOOCOOOQ S y 100 to 240V ac Inputs x 100 to 240V ac 50 60Hz When using a 100 nF capacitor the drop off time of the input increases by 66 6 ms at 60 Hz 80 ms at 50 Hz Also a capacitor increases the amount of current seen by the input device Do not use a bleeder capacitor in conjunction with reed switches Installation 2 17 To limit the current to 400 mA connect a 1K Q resistor in series upstream from the circuit as shown L1 12 1A 1KQ 100 nF 275V ac capacitor 0 25W resistor OOO OOO OO 100 to 240V ac Inputs x 100 to 240V ac 50 60Hz Connect 24 V dc Inputs Use input terminals I1 to I8 Cor I12 for 18 point Pico to connect push buttons switches or 3 or 4 wire proximity switches Given the high off state leakage current do not use 2 wire proximity switches Input Specification Input Signal Voltage Range OFF signal 0 to 5V dc ON signal 15V to 28 8V dc Input Current I1 to I6 19 to 112 R1 to R12 3 3 mA at 24V dc 17 and 18 2 2 mA at 24V dc Example Using 1760 L12BWB xx 24V OV D 24V dc Inputs x 24V dc 17 18 0 to 10V Publication 1760 UM001D EN P September 2005 g 2 18 Installation Example Using 1760 IB12X0B8 2
6. JL flash Draw a Circuit Diagram with Pico 4 31 Timing Relays Single Pulse The relay switches a contact for a time equal to the delay time set regardless of the length of the trigger signal Signal Diagram On Reset Output The reset coil has priority over the trigger coil and resets the relay contact before the time has elapsed If the time is set to zero the contact is set for the duration of one program scan The cycle time varies according to the length of the circuit diagram Typical applications include e Adjusting switching signals to a defined pulse length e Shortening pulses to the duration of a cycle one shot Timing Relays Flashing The relay closes and opens the relay contact alternately with the flashing frequency 1 Flash Frequency 2x Set Tine x Set Time EXAMPLE i Set Time 0 2s Flash Frequency es 2 5 Hz 45 Publication 1760 UM001D EN P September 2005 4 32 Draw a Circuit Diagram with Pico Counter Relays Publication 1760 UM001D EN P September 2005 Signal Diagram On Trigger On Reset On Output _ tlt Ut The trigger coil enables the flashing on and off The flashing period starts with switch position off The reset coil has priority over the trigger coil and always resets the relay contact
7. 1 124 Q1 Draw a Circuit Diagram with Pico 4 57 Logic Table n h s o 1 0 1 1 1 0 1 1 1 1 1 1 1 1 0 Exclusive OR Circuit This circuit is made in Pico using two series connections that are combined to form a parallel connection XOR XOR means that this circuit is an Exclusive OR circuit Only if one contact switches can the coil be energized Logic Table n gt m 0 0 0 1 0 1 0 1 1 1 1 0 Motor Start Stop Circuit A combination of a series and parallel connection is used to wire a latching circuit Latching is established by contact Q1 which is parallel to I1 If I1 is actuated and reopened the current flows via contact Q1 until I2 is actuated EL LEE SIS S1 make contact on 11 Start 12 Stop Contact Q1 Coil 01 Motor oo b b eee 01 0 1 0 0 1 1 1 1 0 1 1 1 1 0 0 0 Publication 1760 UM001D EN P September 2005 4 58 Draw a Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 Latching circuits are used to switch machines on and off The machine is turned on when the normally open push button connected to input terminal I1 is activated The machine is turned off when the normally closed push button connected to I2 is activated STOP 52 START S1 e 2 52 opens the connection t
8. Publication 1760 UM001D EN P September 2005 4 18 Draw a Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 Instruction Type Representation in Pico Output Relay 0 J a1 08 depending on type Marker Relay M TMi T M16 Text Display Relay D J D1 T D8 1760 L18xxx Expansion or Marker Relay T s1 T S8 1760 L18xxx A coil automatically turns off if the power fails or if Pico is in Stop mode Exception Retentive coils retain signal 1 see Chapter 7 Latching Relay The latch and unlatch relay functions are used in T pairs The relay picks up when latched and remains t7 xD in this state until it is reset by the unlatch function Reset y Output on A The Set coil and the Reset coil are triggered at different times B Reset coil is triggered at the same time as the Set coil C Power supply switched off Instruction Type Output Relay 0 Representation in Pico 501 508 RO1 RO8 depending on type Marker Relay M SM1 5M16 RM1 RM16 Text Display Relays D SD1 SD8 RD1 RD8 1760 L18xx Expansion or Marker Relay SS1 SS8 RS1 R88 1760 L18xxx Draw a Circuit Diagram with Pico 4 19 I1 I2 sol I2 RO1 Function Relay Types Use relay functions S and R only once per relay If both coils are triggered a
9. Coil Function 2 Enable after first cycle n Push button M1 Push button pulse rising edge detection M2 Pulse limitation one shot 01 Lamp output M15 Impulse relay retentive Signal diagram Soe 2 x M1 S 00 10 M2 T2 M1 M15 SM15 LRES M1 M15 RM15 M15 T2 Q1 T2 U Supply voltage Publication 1760 UM001D EN P September 2005 7 8 Retention Retentive Timing Relays Publication 1760 UM001D EN P September 2005 The circuit above functions in the same way as an impulse relay switch The make contact remains switched on in the first Pico cycle if a coil is actuated by the make contact of a retentive marker series and parallel connection both apply here too and e when the power is switched on the reset condition for this retentive marker is on The enable time T2 prevents Q1 from flickering Use of Retention The retentive timing relays T7 and T8 can be operated retentively in all six different switching functions The retention setting only works under certain conditions for the switching functions These can be subdivided into groups 1 and 2 If these conditions are not fulfilled the actual value is cleared when the power is restored If the R coil Reset is actuated the actual value is also cleared Group Retentive Function Group 1 On delayed On delayed switching
10. If the time is set to zero the flash frequency changes with the cycle time The cycle time varies according to the length of the circuit diagram A typical application is activating warning lamps Pico works with counter relays C1 to C16 The counter relay adds or subtracts pulses and switches if the actual value is greater than or equal to the setpoint value Values between 0000 and 9999 are possible A counter relay can be controlled via the counting pulse CCx counting direction DCx and reset RCx relay functions Draw a Circuit Diagram with Pico 4 33 Signal Diagram On Count ccx On Direction pcx Reset RCx On on BO C Output On The relay contact of a counter with setpoint value 6 switches when the actual value is 6 A If the counting direction is reversed B the contact switches off when the actual value is 5 Without a counting pulse the actual value is retained C The reset coil resets the counter to 0 D Possible applications include the counting of components lengths or event frequency Program a Counter Relay You can integrate a counter relay into your program in the form of a contact and coil Counter relay C1 receives counting pulses via the count coil CC1 The counting direction can be changed via the direction coil DC1 e If DC1 0 relay C1 counts up e If DC1 1 relay C1 counts down The Reset coil
11. Signal diagram Ln 25g _ Q1 ti t2 30s U Supply voltage Range A In this case the power is interrupted When power is restored the output stays on for the remaining time Range B The time period expires without interruption Retention 7 13 Flashing Switch Operation Retentive Task A flasher function is used to lower an ink stamp at identical time intervals to print an area and then to raise the stamp to prepare for the next hit Contacts and relays used Circuit Diagram Parameters entered TTS T8 01 S 10 00 Coil Function TRG T8 01 Valve ii T T8 Time Signal diagram m Q1 tj tj t U Supply voltage Range A Within this range the power is turned off Following another power on the remaining time runs until finished Publication 1760 UM001D EN P September 2005 7 14 Retention Retentive Up Down Counters C7 and C8 Publication 1760 UM001D EN P September 2005 How the Retention Works The actual values of counters C7 and C8 are retentive When the condition for resetting the counter is satisfied the actual value of the counter will be reset Examples Counting Parts Task 1 Parts are packed automatically in a shipping carton Even if there is a power outage the correct number should still be packed into the ca
12. Continuous display TEST AC Self test aborted Replace the Pico TEST EEPROM TEST DISPLAY TEST CLOCK ERROR I2C Memory module removed or not Insert the memory inserted correctly before saving module Memory module faulty Replace the memory module Pico is faulty Replace the Pico ERROR EEPROM The memory for storing the retentive values or the Pico circuit diagram memory is faulty Replace the Pico ERROR CLOCK Clock error Replace the Pico ERROR LCD LCD is faulty Replace the Pico ERROR ACLOW Incorrect ac voltage Test the voltage Pico is faulty Replace the Pico Publication 1760 UM001D EN P September 2005 10 2 Troubleshoot Your Controller Possible Situations When Creating Circuit Diagrams Possible Situations When Creating Circuit Diagrams Cannot enter contact or relay in circuit diagram Explanation Pico is in Run mode Remedy Select Stop mode Time switch switches at wrong times Incorrect time or time switch parameters Check time and parameters Cannot select analog comparator Ax Pico ac versions have no analog inputs Use Pico de for comparing analog values Cannot select time switch contacts Pico has no clock NC version does not have a clock When using a memory module Pico will display the message PROG INVALID Pico memory module contains
13. BENE Trigger flash blink relay In o g Warning light flash 2s Draw a Circuit Diagram with Pico 4 23 Customer Smith Ltd Program Warning Light Date 5 1 00 Page 2 Timing relays Sk Bii a TRG LT 1 TRG LT TRG LT RES RES RES Analog comparators ANALOG ANALOG ANALOG FA FA A Timing switches ON ON ON OFF OFF OFF Up down counters OI IOS NN IO DIR DIR DIR C1 CNT e CNT Le J RES RES RES Publication 1760 UM001D EN P September 2005 4 24 Draw a Circuit Diagram with Pico Ib ee CCL cl N 5 0 C1 N 5 00000 C1 N S 00010 T5 CC1 I6 RCI 1 1 1 1 5 TL 0 I2 0 Ta 1 S ri 01 000 I2 00 500 Ts Publication 1760 UM001D EN P September 2005 10 11 12 Enter the circuit diagram up to CCl 1 is the contact of counter relay 1 If the cursor is on the contact number Pico will call up the parameter display when you press Ok Move the cursor onto the 1 in 1 and press Ok The parameter set for the counter is displayed Move the cursor onto the plus sign to the right of the S setpoint and press Ok
14. 1 coil energized Negation Negation means that the contact opens rather than closes when it is actuated NOT circuit In the Pico circuit diagram press the Alt button to toggle contact I1 between break and make contact Logic Table n 01 1 0 Permanent Contact Unconditional Rung To energize a relay coil continuously make a connection of all contact fields from the coil to the leftmost position Logic Table Publication 1760 UM001D EN P September 2005 4 56 Draw a Circuit Diagram with Pico I1 I2 I3 Q1 1 12 13 02 Publication 1760 UM001D EN P September 2005 Series Connection Q1 is controlled by a series circuit consisting of three make contacts AND circuit Q2 is controlled by a series circuit consisting of three break contacts In the Pico circuit diagram you can connect up to three make or break contacts in series within a circuit connection Use M marker relays if you need to connect more than three make contacts in series see page 4 10 Logic Table n Mm ja o 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 1 1 0 0 0 0 0 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 1 1 0 Parallel Connection Q1 is controlled by a parallel circuit consisting of three make contacts OR circuit A parallel circuit of break contacts controls Q2 Logic Table n 12 13 01 02 0 0 0 0 1 1 0 0 1 1 0 1 0 1 1 1 1 0 1 1 0 0 1 1 1
15. the Pico power is turned off the Ok or Del Alt buttons are used to switch to a menu or the text for D1 is displayed The following applies to D1 D1 is designed as an alarm text and takes precedence over all other text displays If D1 is activated the text assigned to it is displayed until e the coil D1 is reset to 0 e stop mode is selected e the Pico power supply is switched off or e the Ok or Del Alt buttons are used to switch to a menu Text Entry Text entry is only possible using PicoSoft version 2 1 and higher Character Set All alphabetic characters in upper and lower case are allowed ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz The following special characters are also allowed 1 amp 0123456789 Examples Counter with actual value Analog values scaled as D1 as error message on and setpoint temperature values fuse failure QUANTITY TEMPERATURE FUSE QTY 0042 A 010DEG FAULT SETP0500 PCE I 018DEG HOUSE 1 COUNTING HEATING FAILED Draw a Circuit Diagram with Pico 4 53 Jumps The 1760 L18xxx allows the use of jumps Jumps can be used to optimize the structure of a program or to implement the function of a selector switch For example jumps can be used to select whether manual automatic operation or other machine programs are to be set Jumps consist of a jump location and a jump destination label Circuit Diagram Symbols fo
16. 4 20 Draw a Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 In timing and counter relays it is also possible to change the switching behavior via the coil function ATTENTION In Run mode Pico processes the function relays after a pass through the circuit diagram The last state of the coils is used for this Only use the coil of a function relay once Exception The same coil can be used several times when working with jumps Example with Timing and Counter Relays Draw a Circuit Diagram with Pico 4 21 A warning light flashes when the counter reaches 10 Hard Wire with Relays S1 CNTR1 gt Count S2 gt Reset CNTR1 T X 72 00 sec I PL1 50 JU 424V ov lt Fi si s2 I5 cci RC1 9955560565 oa TT1 54 o Tjs Q1 2 QWOVVOSOVOO 01 1 Publication 1760 UM001D EN P September 2005 4 22 Draw a Circuit Diagram with Pico Use Circuit Diagram Forms You can use the circuit diagram form on page B 1 of this manual for planning and preparing your Pico circuit diagrams An example form is shown below and on the next page pudicus 2 Smith Ltd Warning Light Date 5 1 00 Page 1 Comment e tees mmi Counter Value 10 Publication 1760 UM001D EN P September 2005 RICH Reset Counter
17. Number 8 12 Status display LCD if provided LCD if provided Electrical isolation To power supply No No Between Inputs No No to the outputs Yes Yes Rated voltage sinusoidal off state 0 to 6V ac 0 to 6V ac on state 14 to 26 4V ac 14 to 26 4V ac Rated frequency 50 60 Hz 50 60 Hz Input current 4 mA at 24V ac 50 Hz 4 mA at 24V ac 50 Hz SEDENS also 19 to 110 Input current 2 mA at 24V ac 50 Hz 2 mA at 24V ac 50 Hz 7 18 2 mA at 24V 2 mA at 24V 1760 L18NWN xx also 111 and 112 Delay time 11 to I8 and I9 to 112 176 0 L18 NWN xx From 0 to 1 and from 1 to 0 Debounce ON 80 ms 50 Hz 66 66 ms 80 ms 50 Hz 66 66 ms 60 Hz 60 Hz Debounce OFF 20 ms 50 Hz 16 66 ms 20 ms 50 Hz 16 66 ms 60 Hz 60 Hz Max permissible cable length per input I1 to 18 and 1760 L18NWN xx I9 to 110 40m 131 ft Publication 1760 UM001D EN P September 2005 g Publication 1760 UM001D EN P September 2005 Specification Digital inputs 115 230V ac 1760 L12AWA 1760 L12AWA NC 1760 L12AWA ND 1760 L18AWA 1760 L18AWA EX 1760 L18AWA EXND 1760 1A12X0Wel Number 8 12 Status display LCD if provided LCD if provided Electrical isolation To power supply No No Between Inputs No No to the outputs Yes Yes Rated voltage sinusoidal off state 0 to 40V ac 0 to 40V ac on state 79 t
18. Press Esc to return to the Main Menu A circuit diagram does not have to be completed before you can test parts of it with Pico Pico simply ignores any incomplete wiring that is not yet working and only uses the finished wiring Delete a Circuit Diagram 1 Switch Pico to Stop mode The RUN option is displayed Pico must be in Stop mode in order to extend delete or modify the program Select PROGRAM Press to switch from the main menu to the next menu level Select DELETE PROG Pico displays the prompt DELETE Press Ok to delete the program or Esc to cancel Press Esc to return to the Main Menu Fast Circuit Diagram Entry You can create a circuit diagram in several ways The first option is to enter the elements in the circuit diagram and then wire all the elements together The other option is to use the enhanced operator guidance and create the circuit diagram from the first contact through to the last coil If you use the first option you have to select some of the elements in order to create and connect your circuit diagram The second faster option is what you learned in the example In this case you create the entire circuit connection from left to right Publication 1760 UM001D EN P September 2005 3 10 Commission the Pico Publication 1760 UM001D EN P September 2005 Pico Operation Chapter 4 Draw a Circuit Diagram with Pico By working through the example Create a Circuit
19. Publication 1760 UM001D EN P September 2005 g 2 6 Installation Install the Remote The apes m terminal mode controllers and I O modules The remote processor is used with either Processor a Display or Display Keypad Unit Remote Processor Terminal Operation 1760 12 1760 18 1760 L20 1760 LDF 1760 RM GFX 1760 GFX Display Unit Front View Flush Mount Flush Mount the Display and Remote Processor 3 1 A com Ib in 1 Insert the display unit through the mounting holes on the panel 2 Attach the fixing rings 3 Attach the processor unit Publication 1760 UMOO01D EN P September 2005 Installation 2 1 Removal Procedure Remove the Remote Processor 1760 RM 1 Insert the screwdriver into the mounting slide 2 Push screwdriver to the right to open the slide 3 Remove the processor unit from the display unit Loosen the fixing rings 5 Remove the display unit from the panel Make Connections Connect the Power Supply Remote Processor Power Supply Connection 1760 RM 101 102 101 gt 1 d Ug 24 V dc 20 4 28 8 dc 150 06x 35x 100 m n EN E z Publication 1760 UM001D EN P September 2005 g 2 8 Installation
20. September 2005 g 2 10 Installation 1760 1A12X0W61l Expansion Module L1 L2 F1 NC NC R2 R3 RA R5 R6 7 R8 RI R10 R11 R12 11 OO OOOOOOOOOOOQOOOD Inputs x 100 to 240V ac 1760 L12BWB L12BWB NC L12BWB ND L18BWB EX 24V 100 to 240V ac 50 60Hz OV F1 24V_ COM M 4 24V dc Inputs x 24V dc 17 18 0 to 10V Publication 1760 UMOO01D EN P September 2005 Installation 2 11 1760 1B12X0B8 Expansion Module 24V de OV dc Fi OO OOOOOOOOOOQQOOO V Inputs x 24V dc 24V dc 1760 L12DWD 12V dc OV 12 V C0M 12V dc Inputs x 12V dc The dc controllers are protected against polarity reversal To ensure that the unit works correctly ensure that the polarity of each terminal is correct Wiring Protection Both AC and DC versions require wiring protection F1 rated for at least 1 A slow When the unit is powered on for the first time the power supply circuit draws a larger surge current than usual Use an appropriate device for switching on the incoming power and do not use any reed relay contacts or proximity switches Publication 1760 UM001D EN P September 2005 g 2 12 Installation Use Surge Suppressors Pu
21. 5 1000 W 10 x 58 W 25 000 24 V 8A 2 120V 8A 2 240V 8A 2 D PA R ann 1000 W 10 x 58 W 25 000 Unlike inputs you can connect different phases to the outputs ATTENTION Do not exceed the maximum voltage of 250V ac ona relay contact If the voltage exceeds this threshold arcing may occur at the contact resulting in damage to the device or to a connected load Publication 1760 UM001D EN P September 2005 g 2 24 Installation Connect Transistor Outputs 1760 Publication 1760 UM001D EN P September 2005 1760 Ixxx 1760 IB12X0B8 R L 2 ER 24V 05 0 5A c 5 W 24V 2 5A 24VH 20 4 28 8VH H24W 0W 01 25A 5 24VH 24VH 05A 05 20 4 28 8 V DB swpav PR FA H H H H St 57 53 54 ss 56 57 58 24Vdc COM Q SS SO 9 R EI LL 240 05 0 5A 225A 2 sw 24Vde 20 4 28 8V de Installation 2 25 Parallel Connection Up to four outputs can be connected in parallel in order to increase the load current The output current will increase to a maximum of 2A Outputs may only be connected in parallel within a group S1 to S4 or 5 to S8 such as 1 an
22. Draw a Circuit Diagram with Pico 4 29 Switch Function Description Parameters X Switch with on delay X Switch with on delay and random time range Switch with off delay xl Switch with off delay and random time range TL Switch with single pulse AL Switch with flashing Typically delay times are gt 40 ms for the 1760 L12xxx and gt 80 ms for the 1760 L18xxx This is because a time value less than the maximum scan time of the Pico controllers may cause uncontrolled switching states Time Units and Setpoint Time Parameters Resolution S 00 00 Seconds 10 x milliseconds 00 00 to 99 99 10 ms M S 00 00 Minutes seconds 00 00 to 99 59 1s H M 00 00 Hours minutes 00 00 to 99 59 1 min Parameter Set Displayed via the PARAMETER Menu Option Access enabled Access disabled Timing Relays On Delay Without and With Random Switching The relay switches a contact after the setpoint delay has elapsed With random switching the relay contact switches randomly at any time up to the specified time value shown shaded in figure Timing Diagram On Reset On Output Publication 1760 UM001D EN P September 2005 4 30 Draw a Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 The trigger input starts the time 0 If the trigger input is disabled after the time has elapsed timer is rese
23. During uploading and downloading to card or PC 6 13 Possible faults 6 13 Setting 6 12 Status image 8 1 Suppressing contact bounce 8 7 surge suppressors for contactor 2 14 for motor starters 2 14 for relays 2 14 recommended 2 14 using 2 12 System menu 1 11 Selecting 1 7 T Temperature sensors 2 21 Text display 4 50 Time switches Examples 4 44 Parameters 4 43 Timer and counter settings protecting 4 25 Timing relays Flashing 4 31 Off delayed 4 30 On delayed 4 29 Parameters 4 28 Retentive 7 8 Single pulse 4 31 Wiring 4 26 Torque 2 8 Transfer cable 5 6 Troubleshooting contacting Allen Bradley for assistance Preface 3 procedures 10 1 Two wire proximity switches 2 16 W Wiring Backwards 8 2 Publication 1760 UM001D EN P September 2005 4 Index Relays 4 15 X Rules 4 15 XOR circuit 4 57 Publication 1760 UM001D EN P September 2005 Rockwell Automation Support www rockwellautomation com Rockwell Automation provides technical information on the web to assist you in using our products At http support rockwellautomation com you can find technical manuals a knowledge base of FAQs technical and application notes sample code and links to software service packs and a MySupport feature that you can customize to make the best use of these tools For an additional level of technical phone support for installation configuration and troubleshooting we offer TechConnect Support programs For more information c
24. N NAND circuit 4 56 Negation 4 55 NOT circuit 4 55 0 Operating buttons 1 6 OR circuit 4 56 Output relays 4 8 Overview of Pico 1 2 P P buttons 4 12 Activating and deactivating 6 11 Parameter display Counter relays 4 35 Time switches 4 43 Timing relays 4 28 Parameters Changing 6 7 Changing the switching time 6 8 Display 6 7 Power flow display 4 25 Password Activating 6 3 Changing 6 5 Deleting 6 5 Remove protection 6 5 Setting 6 2 Unlocking 6 4 Password incorrect or not known 6 5 P Buttons 4 12 PC connection 5 5 PicoSoft software 5 5 Power failure 3 3 Power flow display 3 8 4 12 4 13 4 25 Program examples 4 55 Protecting timer and counter settings 4 25 publications related Preface 2 Purpose of this Manual Preface 1 Reed relay contacts 2 16 related publications Preface 2 Relay coils Deleting 4 9 Entering 3 7 Relay outputs 2 22 Relay types Overview 4 5 Relays Coil function 4 14 Entering 4 8 Modifying 4 8 relays surge suppressors for 2 14 Reset 4 18 Restricting the inrush current 2 17 Retention Setting 7 2 Retention requirements Permitted markers and function relays 7 1 Retentive behaviour 7 3 Transfer of circuit diagrams 7 3 Retentive settings 7 1 RUN Startup behaviour 3 3 RUN STOP toggle 3 8 Index 3 Set 4 18 Setpoint potentiometers 2 20 Setpoints 4 19 6 8 Setting the menu language 3 2 Startup behaviour 6 12 After deleting the circuit diagram 6 13 Default setting 6 12
25. The signals must be square waves with a mark to space ratio of 1 1 If this is not the case then the minimum mark to space ratio is 0 5 ms 1 tmin minimum time of the pulse or pause duration tnin 0 5 X maximum count frequency 1 kHz Draw a Circuit Diagram with Pico 4 37 TITIO requency counters operate independently of the program cycle time The result of the actual value setpoint comparison is only transferred once every program cycle for processing in the circuit diagram The reaction time in relation to the setpoint actual value comparison can therefore be up to one cycle Measurement Method The pulses on the input are counted for one second regardless of the cycle time and the frequency is determined The measurement result is provided as an actual value Wire a Frequency Counter The following assignment of the digital inputs apply e 3 counter input for frequency counter C15 e 14 counter input for frequency counter C16 IMPORTANT If you use C15 or C16 as frequency counters coils DC15 or DC16 will have no function The counter signals are transferred directly from the digital inputs 13 and 14 to the counters A frequency counter measures the actual value and does not measure a direction You only integrate a frequency counter into your circuit in the form of 15 a contact and enable coil The coils and contacts have the following 15
26. load save and password protect programs Most controllers also offer a real time clock allowing up to 32 separate on and off times The dc versions can receive analog signals at two inputs and evaluate the signals with eight analog comparators If you prefer to program Pico from a PC use PicoSoft programming software PicoSoft allows you to create and test your programs on the PC It also enables you to print out your programs in DIN ANSI or Pico format Publication 1760 UM001D EN P September 2005 g 1 2 System Overview Hardware Versions Publication 1760 UMOO01D EN P September 2005 Pico Controllers Item Description ncoming Power Inputs Status LED Buttons Socket for memory module or PC interface cable Outputs LCD display o NM oy A wy N Write On Surface System Overview 1 3 Pico controllers are available for 12V dc 24 24V ac and 120 240V ac operation and come in both 12 I O and 18 I O sizes Pico is available with and without a real time clock and with and without a display and keypad See the following table for details Catalog Number Inputs Outputs Line Power Real Time Display and Analog Clock Keypad 1760 L12AWA 8 100 to 240V ac 4 relay 100 to 240V
27. part M8 M14 Q2 SM14 M9 RM14 Signal diagram The Make Contact state is always displayed in the Signal diagram LB I3 M9 M14 U Supply voltage The break contact of the retentive marker M14 is used No enabling time is required for output Q2 Publication 1760 UM001D EN P September 2005 7 6 Retention Publication 1760 UM001D EN P September 2005 Impulse Relay Task After a power failure the lights in a stairwell should resume their previous state Contacts and relays used Coil Function 2 Enable after first cycle n Push button 01 Lamp output M15 Impulse relay retentive Circuit Diagram Parameter Display Eine E TT2 X I1 M15 S 00 10 M15 T2 01 TRG T2 RES M Signal diagram U Supply voltage Range A Q1 was on prior to losing power When power is re applied and the T2 timer expires Q1 turns back on Range B Q1 was on prior to losing power When power is re applied switch I1 is on so Q1 stays off Use time T2 to avoid brief flicker Range C M15 is switched on and remains set until the next time I1 is activated S R Function Task Retention 7 7 After a power failure the lights in a stairwell should resume their previous switching state This is another method to solve the same task Contacts and relays used
28. zd eso End ee S en uS began fa 9 1 Operatori he We hehe p 9 2 Module Status AU ho Es 9 5 Chapter 10 Messages from the Pico 5 10 1 Possible Situations When Creating Circuit Diagrams 10 2 EVODLU eee p Sen doe eroe ede hed dn de d gam pres a 10 3 DC Simulator Specifications Circuit Diagram Form Table of Contents iii Chapter 11 Descriptions s sco v a aes Gok RA ad ORE Ct 11 1 Installation 4 11 2 Appendix Physical 5 1 Environmental 5 1 Electrical 5 2 Pwet Supp e sete ute ees A 3 PUTS eoe RA ade a ateen e Ce a e quart t Ae A 5 cro a x UE EID RA es ud etse vis A 10 vele TIR hue a Varin A 13 DIMENSIONS 4 4 dodo ay amp d E eg A 14 Appendix B Glossary Index Publication 1760 UM001D EN P September 2005 Table of Contents iv Publication 1760 UM001D EN P September 2005 Preface Who Should Use this Manual Purpose of this Manual Read this preface to familiarize yourself with the rest of the manual It provides information concerning e who should use this manual the purpose of this manual e related documentation e conventions used in
29. 1760 UM001D EN P September 2005 Password Protection Chapter 6 Pico System Settings You can modify system settings on Pico models equipped with keypad and an LCD display or by using PicoSoft v2 1 and higher The Pico circuit diagram function relay settings and system parameters can be password protected In this case the password consists of a value between 0001 and 9999 The number combination 0000 is used to delete a password Password protection blocks access to the circuit diagram menu and System menu and thus offers protection against the following e unauthorized modification of the circuit diagram modification of function relay parameters via the circuit diagram transfer of a circuit diagram from and to the memory module changing between operating modes Run or Stop settings of the real time clock communication with individual device switching off the password delete function modification of system parameters set new password Debounce input delay ON OFF P buttons ON OFF menu language selection IMPORTANT Only parameters marked with are password protected Parameters marked with can still be modified via the PARAMETER menu The password does NOT offer protection against access to the parameters of function relays marked with Publication 1760 UM001D EN P September 2005 6 2 System Settings ENTER PW ENTER PW 100
30. 2005 6 4 System Settings STOP PARAMETER PASSWORD SET CLOCK ENTER PW XXXX Publication 1760 UM001D EN P September 2005 Mitten Make a note of the password before you activate it If the password entry is no longer known Pico can still be unlocked However the circuit diagram and other settings are deleted ATTENTION If the password is unknown or lost and the password delete function is not activated the unit can only be reset to the factory setting by the manufacturer The programs and all data are lost 3 Select ACTIVATE and press Ok The password is now active Pico automatically returns to the Status display You must unlock Pico using the password before you can carry out a protected function enter a protected menu or the System menu Unlock Pico Unlocking Pico deactivates the password You can re activate password protection later via the password menu or by switching the power off and on again 1 Press Ok to switch to the main menu The PASSWORD entry flashes 2 Press Ok to enter password entry menu If Pico shows PROGRAM in the main menu instead of PASSWORD this means that there is no password protection active Pico displays the password entry field 3 Enter the password using the cursor buttons 4 Confirm with Ok PROGRAM STOP PARAMETER SET CLOCK CHANGE PW ACTIVATE ENTER
31. 32000 is reached this value is retained until the count direction is changed If the value of Publication 1760 UM001D EN P September 2005 4 36 Draw a Circuit Diagram with Pico High Speed Counters Publication 1760 UM001D EN P September 2005 00000 is reached this value is retained until the count direction is changed Compatibility between Pico Series A Controllers and Pico Series B Controllers 2 AAAA SAAAAA 0230 0000 C1 Ci CLN 5 DIR CNT ci t RES EN Pico provides various high speed counter functions These counter function blocks are coupled directly to digital inputs The following functions are possible Frequency counters C15 and C16 e High speed counters C13 and C14 Frequency Counters Pico provides two frequency counters C15 and C16 for use as required The frequency counters can be used for measuring frequencies The high speed frequency counters are permanently connected to the digital inputs I3 and I4 Frequency counters C15 and C16 can be used for determining motor speeds volume measurement using volume meters or the running of a motor The frequency counter allows you to enter an upper threshold value as a comparison value The C15 and C16 frequency counters are not dependent on the cycle time Counter Frequency and Pulse Shape The maximum counter frequency is 1 kHz and the minimum counter frequency is 4 Hz
32. 4 26 Drawa Circuit Diagram with Pico Timing Relays Publication 1760 UM001D EN P September 2005 Pico provides sixteen different timing relays T1 to T16 A timing relay is used to change the switching duration and the make and break times of a relay contact The possible delay times range between 2 ms and 100 hours You can use positive values values of analog inputs and actual values of counter relays and timing relays TTITIEU The timing relays of Pico Series B controllers function in the same way as the timing relays of Pico Series A controllers The one exception is the flash function Pico Series B starts with the pulse In Series A controllers the flash function starts with the pause If required the same timing relays can also be used for retentive data You integrate a timing relay into your circuit in the form of a contact and coil Contact Coil T1 to T16 Contact of a timing relay zi 1 to TT16 Enable timing relay trigger 25 1 to RT16 Reset coil of the timing relay HT1 to HT16 Stop coil of the timing relay H Stop S means the Set coil function TTIITUBO TO prevent unpredictable switching states use each coil of a relay only once in the circuit diagram TL Ii T2 X S 00 000 00 000 Draw a Circuit Diagram with Pico 4 27 Parameter Display and Parameter Set for a Timing Relay Timing relay number 1 X On delayed
33. 503 meanings Contact Coil Description C15 to C16 The contact switches if the actual value is greater than or equal to the setpoint CC15 CC16 Enable of the frequency counter on 1 state coil activated RC15 RC16 Reset coil triggered actual value reset to 00000 Publication 1760 UM001D EN P September 2005 4 38 Draw a Circuit Diagram with Pico 5 00200 C15 Publication 1760 UM001D EN P September 2005 TTTTTUM The frequency counter can also be enabled specifically for a special operating state This has the advantage that the cycle time of the device is only burdened with the frequency measurement when it is taking place If the frequency counter is not enabled the cycle time of the device is shorter Parameter Display and Parameter Set for Frequency Counter C15 Counter function relay number 15 frequency counter e appears in the Parameter menu e does not appear in Parameter menu S Setpoint constant from 00000 to 01000 32000 is a possible setting the maximum frequency is 1 kHz In the parameter display of a counter relay you change the mode the setpoint and the enable of the parameter display Value Range The counter relay counts between 4 and 1000 Hz Parameter display in Run mode C15 F S 00200 Current setpoint constant Contact has not switched C 00153 0 Contact has switc
34. 8 Connect the Incoming Power 2 9 Use Surge Suppressors 2 12 Connect the 2 14 Gonnect Outputs ic ek y Re eee Ee ok ee aS 2 22 Connect Relay 2 22 Connect Transistor 2 24 Chapter 3 Power On Units bees ad emer ELEM UR 3 1 Set the Menu 3 2 Modes of Operation 3 3 Create Circuit Diagram 3 4 Chapter 4 Pico OPEC ON asse o ag cope ROOM eS tees a we med a RES 4 1 Work with Contacts and 4 8 Function Relay Types 4 19 Example with Timing and Counter Relays 4 21 ume RAY So uuo Rie ese Rindge DC eR ARS 4 26 KOU RELAYS doe e vate cote ei aute ew et by d 4 32 High Speed Counters 4 36 re a a n wind a ah Rh 4 42 Analog Comparators Seed eed a 4 47 Text Display ue ee ce 4 50 JUMPS C Tm 4 53 Example Programs 4 55 Publication 1760 UM001D EN P September 2005 Table of Contents ii Save and Load Circuit Diagrams Pico System Settings Retention Inside Pico Use of Expansion Modules Troubleshoot Your Controller Publication 1760 UM001D EN P September 2005 Chapter 5 Inte
35. Alt The existing circuit connection with all its additional connections is shifted down The cursor is then positioned directly in the new circuit connection Publication 1760 UM001D EN P September 2005 4 12 Drawa Circuit Diagram with Pico Delete a Circuit Connection Pico only removes empty circuit connections i e those without contacts or coils 1 Delete all the contacts and relay coils from the circuit connection 2 Position the cursor on the first contact field of the empty circuit connection 3 Press Del The subsequent circuit connection s is pulled up and any existing links between circuit connections are retained Use the Cursor Buttons as Inputs With Pico you can also use the four cursor buttons as soft inputs in the circuit diagram The buttons are contacts P1 to P4 in the circuit diagram The P Buttons can be activated and deactivated in the System menu P1 The P Buttons can also be used for testing circuits or manual operation These button functions are also useful for servicing and commissioning purposes Example 1 I14 501 P2 A lamp at output relay Q1 is turned on and off via inputs I1 and I2 or using cursor buttons up and down Example 2 I5 1 9 mn 01 Input I1 is used to control output Q1 Input I5 switches to Cursor PLAMI button mode and deactivates circuit connection I1 via M1 mA The P Buttons are only recognized as s
36. Asia Pacific Rockwell Automation Level 14 Core F Cyberport 3 100 Cyberport Road Hong Kong Tel 852 2887 4788 Fax 852 2508 1846 Publication 1760 UM001D EN P September 2005 Supersedes Publication 1760 UM001C EN P April 2005 PN 40072 084 01 4 Copyright 2005 Rockwell Automation Inc All rights reserved Printed in the U S A
37. Circuit Connections 1 2 3 4 11 01 08 In the first three segments Pico evaluates the contact fields in succession As it does so Pico also checks whether contacts are connected in parallel or in series and stores the switching states of all the contact fields In the fourth segment Pico assigns the new switching states to all the coils in one pass The fifth segment is outside the circuit diagram Pico uses this to make contact with the outside world Output relays Q1 to Q are switched and inputs I1 to I are read Pico also copies all the new switching states to the status image register Pico only uses this status image for one cycle This ensures that each circuit connection is evaluated with the same switching state for one cycle even if the input signals I1 to I12 change their status several times within a cycle Publication 1760 UM001D EN P September 2005 8 2 Inside Pico Publication 1760 UM001D EN P September 2005 Evaluation in the Circuit Diagram and High Speed Counter Functions When using high speed counter functions the signal state is continuously counted or measured regardless of the processing of the circuit diagram C13 C14 high speed up down counters C15 C16 frequency counters How Does This Affect Creation of the Circuit Diagram Pico evaluates the circuit diagram in these five segments in order You should therefore remember two points when you create your circuit diagram
38. Circuit Diagrams Memory Module Publication 1760 UM001D EN P September 2005 The following memory modules are available as Pico accessories Pico Controller Memory Module 1760 L12xxx 1760 MM1 Series A only 1760 L18xxx 1760 MN2 Series A only Series B Pico Controllers 1760 MM2B Programs including all relevant data can be transferred from the 1760 MM2B memory module to the Series B Pico Controllers The existing 1760 MM1 and 1760 MM2 memory modules are Read Only when used with Series B Pico Controllers The 1760 MM2B memory module will not work with Series A Pico Controllers Each 1760 MM2B memory module can hold one Pico program up to 32K Information stored on the memory module is non volatile Because the information is not lost when the power is turned off you can use the module to make a backup copy of your program and or to transfer it to another Pico device The following information is saved to the memory module the program all parameter settings of the program all text displays system settings debounce input delay P buttons password retention on off Insert the memory module into the open interface slot Save and Load Circuit Diagrams 5 3 IMPORTANT You can insert and remove the memory module even if power to Pico is on without the risk of losing data Load or Store Programs You can only transfer programs in Stop mode TIP The
39. OPRTNG MODE SYSTEM 1lDEBOUNCE OFF 9 DEBOUNCE OFF zuo Met INTERFACE f DELETE FUNCT LANGUAGE EON DEBOUNCE ON CONFIGURATOR STOP MODE DEBOUNCE OFF P ON m P ON STOP MODE P OFF DEBOUNCE OFF P ON STOP MODE MODE STOP DEBOUNCE OFF MODE RUN P ON STOP MODE RETENTION ON a RETENTION on SECURITY RETENTION OFF SYSTEM ENGLISH LANGUAGE DEUTSCH CONFIGURATOR FRANCAIS ESPANOL Y ITALIANO PORTUGUES NEDERLANDS SVENSKA POLSKI TURKCE 1 Only for Pico 1760 L18xxx CESKY 2 Only for Pico 1760 L12BWB xx ECURITY EE L12DWD and L18xxx YSTEM ANGUAGE pe ONFIGURATOR Publication 1760 UM001D EN P September 2005 g 1 12 System Overview Selecting or Toggling Between Menu Items Cursor up or down PROGRAM RUN NS PARAMETER INFO Highlighted ast Select or Toggle choice flashes Cursor Display There are two different cursor types flashing block and flashing cursor HH MM 04 23 17 03 Full block navigation is shown as a flashing block YEAR 2004 Move cursor with the left right arrows In circuit diagram also with up down arrows HH MM 14 23 17 03 Parameter change cursor flashes the selected parameter YEAR 2004 e Change position with left right arrows Change values with up down arrows Flashing values menus are highlighted in grey in this manual Set
40. PW ENTER PW 1005 ENTER PW ENTER PW XXXX DELETE ALL Pico System Settings 6 5 If the password is correct Pico switches automatically to the Status display The PROGRAM menu item is now accessible so that you can edit your circuit diagram The System menu is also now accessible Change or Delete a Password 1 Press Del and Alt to call up the System menu 2 Open the password menu by selecting Security and then Password from the System menu 3 The CHANGE PW entry flashes Pico only shows this menu if a password is present 1 Press Ok to enter password entry menu 2 Press Ok to move to the 4 digit entry field 3 Use the left or right arrow to move to the 4 digit entry field 4 Modify the four password digits using the cursor buttons 5 Confirm with Ok 6 Press Esc to exit the password display Delete a Password Use the number combination 0000 to delete a password If a password has not been entered already Pico shows four dashes Password Incorrect or Not Known If you no longer know the exact password you can try to re enter the password several times After the fourth attempt Pico asks whether you wish to delete the circuit diagram and data Press e Esc Nothing is deleted Pico is still password protected Ok Circuit diagram data and password are deleted Publication 1760 UM001D EN P September 2005 6 6 Pico System Setting
41. Q6 The expansion modules can add another 12 inputs and 6 or 8 outputs The signal states at the input terminals are recorded in the circuit diagram as R1 to R12 The outputs are switched using S1 to S8 Enter or Modify the Contact or Relay Define a contact in Pico via its name and number A relay is defined by its coil function name and number A full list of all the contacts and relays is given on page 4 4 Enter mode is used to modify the value of contact fields and coil fields The value to be modified will flash If the field or section is empty Pico will enter contact 1 or the coil Move the cursor using the buttons to a contact or coil field e Press Ok to switch to Enter mode Use the left and right arrow keys to select the position you wish to change or press Ok to jump to the next position Use the up and down arrow keys to modify the value of the position Draw a Circuit Diagram with Pico 4 9 Change I1 to I2 in the Change 01 to Q8 in the coil contact field field HT rH I2 Q1 01 01 08 Q x 2 EN M gt 2 M or 3 5 T ES Q OK 4 R c OK e 5 D T S P 8 D S 16 gt 52 R or or OK OK Pico leaves the Enter mode when you press the left or right arrow keys or Ok Deleting Contacts and Relay Coils 1 Move the cursor using the arrow buttons to a contact or coil field 2 Press Del The contact or the relay coil is deleted together with any connectio
42. RC1 is used to reset the counter to 0 Contact C1 is used to process the result of the counter in the circuit diagram To prevent unpredictable operation use each coil of a relay only once in the circuit diagram Enter at least one contact and a coil in your circuit diagram A relay contact in the contact field in this case C1 A count coil in the coil field in this case CC1 Publication 1760 UM001D EN P September 2005 4 34 Draw a Circuit Diagram with Pico 0005 DIR cst c RES Publication 1760 UM001D EN P September 2005 You can wire up coils RC1 and DC1 as required Select relay contact C1 move the cursor to 1 and press Ok The parameter set for counter relay C1 is displayed Determine Counter Frequency The maximum counter frequency depends on the length of the circuit diagram in Pico The number of contacts coils and circuit connections used determines the scan time cycle time required to process the Pico circuit diagram When using a Pico with only three circuit connections for counting resetting and outputting the result via the output the counter frequency may be 100 Hz To determine the scan time refer to Determine Cycle Time of Circuit Diagrams on page 8 3 The maximum counter frequency depends on the maximum scan time Use the following formula to determine the maximum counter frequency f KT x 0 8 m I maximum
43. are processed internally Even though the cursor buttons P Buttons have been set as push button inputs in the program this function is not activated automatically This prevents any unauthorized use of the cursor buttons The P Buttons can be activated in the System menu If Pico is password protected you cannot open the System menu until you have unlocked Pico The P Buttons are activated and deactivated via the P BUTTONS menu option 1 Press Del and Alt to select the System menu 2 Select the SYSTEM menu 3 Move to the P menu option Activate the P Buttons If Pico is showing P BUTTONS this means that the P Buttons are active 1 Otherwise select P BUTTONS and press Ok A check mark appears and the P Buttons are now active Publication 1760 UM001D EN P September 2005 6 12 System Settings Start Up Behavior DEBOUNCE P BUTTONS RUN MODE CARD MODE Publication 1760 UM001D EN P September 2005 2 Press Esc to return to the status display The P Buttons are only active in the Status display In this display you can use the P Buttons to activate inputs in your circuit diagram Deactivate the P Buttons Select P BUTTONS and press Ok The check mark is removed The P Buttons are now deactivated The P Buttons are automatically deactivated when deleting a circuit diagram in Pico The start up behavior is an important feature during the commissioning phase The circuit di
44. between 19 00 and 22 00 on Saturdays 1 Select PARAMETER from the main menu The first parameter set is displayed 2 Use up or down arrows to scroll through the parameter sets until channel A of time switch 1 is displayed 3 Press the up arrow to select the next empty parameter set in this case channel B of time switch 1 The current time is 15 21 01 B 15 21 D ON 00 00 OFF 00 00 91 B 15 21 D SA ON 00 00 D1 B 15 21 D SA ON 19 00 OFF Set Date Time and Daylight Saving Time SET CLOCK SUMMER TIME HH MM DD MM YEAR 18 24 01 05 2004 Pico System Settings 6 9 4 Change the value for the day interval from MO to SA e Left and right arrows move between the parameters e Up and down arrows change value Press Ok to save Set the switching on time to 19 00 Set the switching off time to 22 00 Press Ok Pico saves the new parameters The cursor remains in the contact field on channel identifier B Press Esc to leave the parameter display The time switch will now also turn on at 19 00 on Saturdays and switch off at 22 00 If the clock is not set yet or if Pico is powered on after the battery backup time has been exceeded the clock starts with the setting SA 0 01 01 05 2004 The Pico clock operates with date and time so the hour minute day month and year must all be set 1 N Qe TIP Pico uses military time so 1 00 p m
45. counter frequency maximum scan time 0 8 correction factor EXAMPLE The maximum scan time is te 4000 ps 4 ms 1 fo Sam 0 8 100 Hz Draw a Circuit Diagram with Pico 4 35 Parameters for Counters The parameter display for counters is used to change the counter setpoint value and to enable or disable parameter access C2 N S 00 000 C2 Counter function relay number 2 N e Mode N up down counter e Mode H high speed up down counter e Mode F frequency counter e appears in the Parameter menu e does not appear in the Parameter menu 5 Setpoint constant from 00000 to 32000 Parameter Coil Function Meaning DIR DC1 to DC16 Counting direction Coil not triggered count up Coil triggered count down CNT CC1 to CC16 Counting pulse RES RC1 to RC16 Reset coil triggered actual value reset to 00000 The symbol t before DIR CNT and RES indicates whether the coil function is programmed in the circuit diagram Parameters Displayed via the PARAMETER Menu Option Access enabled Access disabled The actual value is only displayed in Run mode The parameter display can then be called via the power flow display or via the PARAMETER option from the main menu The coil symbol is not displayed if you select the parameter display via the PARAMETER menu option The counter relay counts between 0 and 32000 When the Pico is in Run mode and the value of
46. exit the entry for the retentive ranges Delete Retentive Actual Values The retentive actual values are cleared when applies only in Stop mode e the circuit diagram is transferred from PicoSoft or the memory card to the Pico control relay the retentive actual values are reset to zero This also applies when there is no program on the memory card In this case the old circuit diagram is retained e the selected retentive markers function relays or text display are deactivated e the circuit diagram is deleted via the Delete Funct menu The operating hours counters are always retentive The actual values can only be reset through a special reset operation from the circuit diagram Transfer of Retentive Behavior The setting for retentive behavior is a circuit diagram setting in other words the retention setting is on the memory card and is transferred with the circuit diagram when uploading or downloading from the PC Publication 1760 UM001D EN P September 2005 Display Device Information Pico System Settings 6 17 Change the Operating Mode or the Circuit Diagram When the operating mode is changed or the circuit diagram is modified the retentive data is normally saved together with the actual values The actual values of relays no longer being used are also retained Change the Operation Mode If you change from Run to Stop and then back to Run the actual values of the retentive data are retained Modify t
47. for grounding electrical equipment National Electrical Code Published by the National Fire Protection Association of Boston MA A complete listing of current documentation including ordering Allen Bradley Publication Index SD499 instructions Also indicates whether the documents are available on CD ROM or in multi languages A glossary of industrial automation terms and abbreviations Allen Bradley Industrial Automation AG 7 1 Glossary Common Techniques Used The following conventions are used throughout this manual in this Manual procedural steps e Bulleted lists such as this one provide information not e Numbered lists provide sequential steps or hierarchical information Publication 1760 UM001D EN P September 2005 Preface 3 Rockwell Automation Rockwell Automation offers support services worldwide with over 75 l S rt Sales Support Offices 512 authorized Distributors and 260 authorized uppo Systems Integrators located throughout the United States alone plus Rockwell Automation representatives in every major country in the world Local Product Support Contact your local Rockwell Automation representative for e sales and order support product technical training e warranty support e support service agreements Technical Product Assistance If you need to contact Rockwell Automation for technical assistance please review the Troubleshooting section on page 10 1 in this manual
48. is switched on M1 is set If I2 is switched off M1 is cleared via break contact I2 How is the result shifted Pico activates the coils in accordance with the circuit connection and its result from top to bottom M4 assumes the value of M3 value 0 or 1 before M3 assumes the value of M2 M3 assumes the value of M2 M2 the value of M1 and M1 the value of I2 Why are the values not constantly overwritten In this example the coils are controlled only by the S and R functions i e the values are retained in on or off states even though the coil is not constantly switched on The state of the coil changes only if the circuit connection up to the coil is enabled In this circuit the marker relay is therefore either set or reset The circuit connections of the coils storage positions are only enabled via M8 for one cycle The result of activating the coils is stored in Pico until a new pulse changes the state of the coils How are all the storage positions cleared When I3 is turned on all the R coils of storage positions M1 to M4 are reset i e the coils are turned off Since the reset was entered at the end of the circuit diagram the reset function has priority over the set function How can the value of a storage position be transferred Use the make or break contact of storage positions M1 to M4 and program them to an output relay or in the circuit diagram according to the task required Running Light An aut
49. mode Time range in seconds e appears in the Parameter menu e does not appear in the Parameter menu n Time setpoint 1 e Positive value 17 18 111 112 e Actual value T1 to T16 C1 to C16 12 Time setpoint 2 e Positive value 17 18 111 112 e Actual value T1 to T16 C1 to C16 T Display of actual value in Run mode In the parameter display of a timing relay you can change the mode the time base the time setpoint 1 time setpoint 2 if necessary and the enable of the parameter display Compatibility Between Pico Series A and Pico Series B Controllers New functions have been added to the parameter display of the Pico Series B Controllers The Series A parameters can be found at the following points Pico Series A Pico Series B IE 1 nd Bu X X I1 AA BB S AA BB S 8 I2 TRG T1 AABB RES Ts T1 X Mode time base 11 10 000 Time setpoint 1 Actual value of elapsed time __ 12 00 000 Time setpoint 2 Contact has not switched 05 Contact has switched Publication 1760 UM001D EN P September 2005 4 28 Publication 1760 UM001D EN P September 2005 Draw a Circuit Diagram with Pico Task Turn on output Q1 1 5 min after actuation via 11 Disable T2 via 12 Circuit Diagram 1 TT2 I2 RT2 TE Q1 Parameter Display T2 X
50. not result in the loss of the setting selected Behavior During Upload and Download When a valid circuit diagram is transferred from Pico to a memory module or the PC or vice versa the setting is still retained Pico controllers without a display can only be started in Run mode Possible Faults Pico will not start in Run mode if 1 Pico does not contain a circuit diagram 2 You have put Pico in Stop mode Run Mode menu displayed Card Startup Behavior The startup behavior with memory module is for applications where unskilled personnel change the memory module under no voltage conditions Publication 1760 UM001D EN P September 2005 6 14 Pico System Settings Set Cycle Time DEBOUNCE VW P BUTTONS RUN MODE DEBOUNCE P BUTTONS RUN MODE VA P BUTTONS RUN MODE CARD MODE y Y Publication 1760 UMO01D CYCLE TIME 00 MS EN P September 2005 Pico only starts in the Run Mode if a memory module with a valid program is inserted If the program on the memory module is different than the program in Pico the program from the card is loaded into the processor and the processor starts in the RUN mode Switch to the System menu If Pico is protected by a password the System menu is not available until Pico is unlocked see the section Unlock Pico on page 6 4 Activation of Card Mode If Pico displays Card Mode this means that when the power supply is swit
51. of the particular inductive device See the table on page 2 14 for recommended suppressors Installation 2 13 Surge Suppression for Inductive ac Load Devices C Output Device Output Device Output Device IC Varistor RC Network Surge Suppressor For inductive dc load devices a diode is suitable A 1N4004 diode is acceptable for most applications A surge suppressor can also be used See the table on page 2 14 for recommended suppressors As shown in the illustration below these surge suppression circuits connect directly across the load device Surge Suppression for Inductive dc Load Devices p Output Device Diode A surge suppressor can also be used Publication 1760 UM001D EN P September 2005 g 2 14 Installation Recommended Surge Suppressors Use the Allen Bradley surge suppressors shown in the following table for use with relays contactors and starters Suppressor Device Coil Voltage Catalog Number Bulletin 509 Motor Starter 120V ac 599 K04 Bulletin 509 Motor Starter 240V ac 599 KA04 Bulletin 100 Contactor 120V ac 199 FSMA1 Bulletin 100 Contactor 240V ac 199 FSMA2 Bulletin 709 Motor Starter 120V ac 1401 N10 Bulletin 700 Type R RM Relays ac coil None Required Bulletin 700 Type R Relay 12V de 700 N22 Bulletin 700 Type RM Relay 12V de 700 N28 Bulletin 700 Type R Relay 24V dc 700 N10 Bulle
52. off For information on using the 1760 IB12XOB8 expansion module to monitor outputs for a fault see Monitor for Short Circuit or Overload on page 9 4 Power On Unit Chapter 3 Commission the Pico Before powering up Pico check that you have connected the power supply terminals and inputs correctly 12V dc version e 12V terminal 12V dc voltage e COM terminal voltage e terminals I1 to I8 actuation via 12V dc 24V dc version e 24V terminal 24V dc voltage e COM terminal voltage e terminals I1 to I12 R1 to R12 actuation via 24V dc 100 to 240V ac version e terminal L1 phase conductor L1 e terminal L2 neutral conductor L2 grounded e terminals I1 to 112 R1 to R12 actuation via phase conductor L1 ATTENTION If you have already installed Pico into a system ensure that the working area of all connected devices is secure Advise all personnel of start up to avoid injury in the event of unexpected operation Publication 1760 UM001D EN P September 2005 3 2 Commission the Pico Set the Menu Language Publication 1760 UM001D EN P September 2005 When you power up Pico for the first time you are asked to select the menu language Use the up and down cursor buttons to select a language Definitions of the language abbreviations are shown below Language LCD display Abbreviaton English ENGLISH GB German DEUTSCH D French FRANCAIS F Spanish ESPANOL E Ita
53. protect the function or menu INTERFACE DELETE FUNCT 2 Select the function or menu to be protected A check mark appears next to the protected item Standard protection encompasses the programs and circuit diagram At least one function or menu must be protected Circuit Diagram The password is effective on the program with circuit diagram and non enabled function relays e Parameter The Parameter menu is protected e Clock Data and time are protected with the password Operating Mode Switching between Run or Stop mode is protected e Interface The interface is disabled for access with Pico software Delete Function The question Delete Prog appears on the device after four incorrect password entries have been made This prompt is not displayed if selected However it is no longer possible to make changes in protected areas if you forget the password Activate the Password You can activate a valid password in three different ways e automatically when Pico is powered on again e automatically after loading a protected circuit diagram from the memory module via the password menu Use the following procedure to activate the password via the password menu 1 Press Del and Alt to call up the System menu CHANGE PW 2 Open the password menu via the menu option PASSWORD ACTIVATE Pico only shows this menu if a password is present Publication 1760 UM001D EN P September
54. 0 Publication 1760 UM001D EN P September 2005 TITIO password that was entered in Pico is transferred to the memory module together with the circuit diagram whether it was activated or not If this Pico circuit diagram is loaded from the memory module the password is also transferred to Pico and is activated immediately Set the Password Passwords can be set in the System menu in both Run or Stop operating modes If however a password is already activated you cannot change to the System menu 1 Press Del and Alt to call up the System menu Select the menu item SECURITY to enter the password Press the Ok button and move to the PASSWORD menu Press the Ok button again to access the password entry area If a password has not been entered already Pico will switch directly to the password display and show four dashes no password set Press Ok and four zeros appear Set the password using the cursor buttons left and right arrows move to the 4 digit entry field left and right arrows select digit in password up and down arrows set a value between 0 and 9 Save the new password by pressing Ok Pico will hide a valid password with XXXX Press Ok or Esc to exit the password display The password is now valid but not yet activated Pico System Settings 6 3 Select the Scope of the Password 1 Press Ok CIRC DIAG PARAMETER CLOCK OPRTNG Mops 3 Press Ok in order to
55. 0 UM001D EN P September 2005 4 14 Draw a Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 Coil Functions You can set the coil function to determine the switching behavior of relay coils The following coil functions are available for relays Q M S D Circuit Diagram Pico Coil Function Example Symbol Symbol Output 01 D2 Energize S4 1 Function M5 j Output Q1 D2 Negated S4 Function Cycle pulse 793 LM4 m falling edge 1 08 1 87 Cycle pulse p raising edge J D8 S7 Maintained 93 4 Flip Flop 8 57 Function S Set latching 996 SM2 gt 503 554 CU R RQ4 RM5 rds dcs RS3 unlatching The marker relays N used as a flag The 5 relay can be used as the output of an expansion module or as a marker if no expansion module is connected When used as markers the only difference between them and the output relay Q is that they have no output terminals The functions of timer and counter relays are explained in the relevant relay description The coil function output energize should only be used once on each coil Otherwise the last coil in the circuit diagram determines the status of the relay To ensure proper operation of all relay states only assign the same co
56. 1 N16 Text Display Relay D D1 D16 1760 L18xxx Expansion or Marker Relay 1 S8 1760 L18xxx Jumps 1 4 8 1760 L18xxx Relays with Falling Edge Function JT This function is used if the coil is only meant to switch falling edge With a change in the coil state from closed to open the coil switches the make contacts to the closed state for one cycle Signal Diagram on on Output Instruction Type Marker Relay M N 6 FN1 FN16 Input Representation in Pico Jumps l 1 1r8 1760 L18xxx Physical outputs should not be used when a cycle pulse is generated Publication 1760 UM001D EN P September 2005 Draw a Circuit Diagram with Pico 4 17 Relays with Raising Edge Function This function is used if the coil is only meant to JL Switch on a rising edge Wlth a change in the coil state from open to closed the coil switches its make contacts to the closed state for one cycle Signal Diagram Input on Output Instruction Type Representation in Pico Marker Relay M N Put Puie 6 Jumps 1760 1 18 Physical outputs should not be used when a cycle pulse is generated Maintained Flip Flop Relay L The relay coil switches state whenever the input signal changes from 0 to 1 The relay behaves like a flip flop Signal Diagram r on
57. 1 on via M15 at 3600 DIR counting pulses 3600 s 1 h t CNT c8 4 RES M15 resets C8 and prepares C8 for the next hour To stop C8 Parameters entered from continuing to count while J lubrication is in process the S 30 00 break contact of M15 blocks TRG Lrs the counting of pulses RES T8 is actuated by means of M15 Once T8 has timed out M15 and T8 will be reset In order that both the time elapsed since the last lubrication counter C8 and also the lubrication pulse remains constant in the event of a power outage C8 M15 and T8 must be retentive Publication 1760 UM001D EN P September 2005 7 18 Retention Signal diagram U Supply voltage Publication 1760 UM001D EN P September 2005 Chapter 8 Circuit Diagram Cycle Inside Pico In conventional control systems relay control processes all the circuit connections in parallel The speed with which a relay switches is thus dependent on the components used and ranges from 15 to 40 ms for relay pick up and drop out With Pico the circuit diagram is processed with a microprocessor that simulates the contacts and coils of the relay logic and thus processes all switching operations considerably faster Depending on its size the Pico circuit diagram is processed cyclically every 2 to 40 ms During this time Pico passes through five segments in succession How Pico Evaluates the Circuit Diagram Range
58. 111 and 112 IMPORTANT Compatibility with Pico Series A Controllers If you have loaded an existing Pico Series A circuit diagram the previous comparator functions and values are retained The analog value comparator function relay can work in Pico Series B Controllers in the same way as in Series A Controllers The setpoints are converted to the new resolution of the analog inputs Pico provides sixteen analog comparators A1 to 16 A comparator can perform six different comparisons The relay contact switches if the comparison conditions are true 7 greater than or equal to I8 I7 less than or equal to I8 7 greater than or equal to setpoint I7 less than or equal to setpoint e 8 greater than or equal to setpoint I8 less than or equal to setpoint Both the setpoint value and the actual value correspond to the measured voltages The resolution of the voltage values from 0 0 to 10 0V dc is in 0 1V steps If the voltage at the input terminal is above 10V dc the comparator value stays at 10 0V dc You can enter the setpoint values for a comparison while you are creating the circuit diagram or in the parameter display in Run mode A typical application would be to evaluate the analog values of sensors e g to measure pressure or temperature Publication 1760 UM001D EN P September 2005 4 48 Drawa Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 Par
59. 11112 Q1 As long as I14 1 the remaining circuit diagram is skipped If 114 0 the circuit diagram is processed If the expansion module drops out for any reason the circuit diagram is skipped M1 detects whether the circuit diagram was processed for at least one cycle after the power supply switched on If the circuit diagram is skipped all the outputs retain their previous state The next example should be used if this is not desired Example with LCD Output and Reset of the Outputs 14 1 8 SM1 114 8 11112 Q1 od 14 1 14 8 8 D1 ES 8 Publication 1760 UM001D EN P September 2005 9 6 Use of Expansion Modules Publication 1760 UM001D EN P September 2005 Messages from the Pico System Troubleshoot Your Controller Chapter 10 You may sometimes find that Pico does not do exactly what you expect If this happens read through the following notes which are intended to help you solve some of the problems you may encounter Use the power flow display in Pico to check the logic operations in the Pico circuit diagrams with reference to the switching states of contacts and relays Only qualified persons should test Pico voltages while the device is in operation Pico System Messages on the LCD No display Explanation Power interrupted Remedy Turn on the power Pico LCD faulty Replace the Pico
60. 1760 L12BWB 1760 L12BWB NC 1760 L12BWB ND 1760 L12DWD 1760 L12DWD ND 1760 L18BWB EX 1760 L18BWB EXND 1760 L18DWD EX 1760 L18DWD EXND 1760 L20BBB EX 1760 L20BBB EXND Number 4 Cable Length shielded 20m High Speed Up and Down Counters Counting Frequency 1 kHz Pulse Shape Square Wave Mark to Space Ratio 1 1 Frequency Counters Specifications A 9 High Speed Counter Inputs I1 to 14 1760 L12BBB 1760 L12BBB ND 1760 L12BWB 1760 L12BWB NC 1760 L12BWB ND 1760 L12DWD 1760 L12DWD ND 1760 L18BWB EX 1760 L18BWB EXND 1760 L18DWD EX 1760 L18DWD EXND 1760 L20BBB EX 1760 L20BBB EXND Counting Frequency lt 1 kHz Pulse Shape Square Wave Mark to Space Ratio 1 3 Publication 1760 UM001D EN P September 2005 g A 10 Outputs Specification Specifications Number of Relay Outputs Relay Outputs 1760 L12AWA 1760 L12AWA NC 1760 L12AWA ND 1760 L12BWB 1760 L12BWB NC 1760 L12BWB ND 1760 L12DWD 1760 L12DWD ND 1760 L12NWN 1760 L12NWN ND 4 1760 L18AWA 1760 L18AWA EX 1760 L18AWA EXND 1760 L18BWB EX 1760 L18BWB EXND 1760 L18DWD EX 1760 L18DWD EXND 1760 L18NWN EX 1760 L18NWN EXND 1760 1A12X0 W6l 1760 IB12XOW6I 1760 0W2 6 2 for 1760 0W2 In Groups of 1 2 for 1760 0W2 Connection of Outputs in Parallel to Increase the Output Not permissible Protection for an Output Relay Miniature circuit breaker B16 or 8 A fuse slow Isolation to Power
61. 1D EN P September 2005 3 6 Commission the Pico nmi Ni Publication 1760 UM001D EN P September 2005 From the First Contact to the Output Coil With Pico you work from the input to the output 1 The first input contact is I1 Press Ok Pico inserts the first contact I1 at the cursor position The T flashes and can be changed for example to a for a button input using the up or down cursor buttons However nothing needs to be changed at this point Press Ok twice to move the cursor across the 1 to the next contact field You could also move the cursor to the next contact field using the right cursor button Press Ok Again Pico creates a contact I1 at the cursor Change the contact number to I2 since break contact normally closed S2 is connected to input terminal I2 Press Ok Then press the up or down cursor button to change the number to 2 Press DEL to delete a contact at the cursor position Press Ok to move the cursor to the third contact field You do not need a third relay contact so you can now wire the contacts directly to the coil field Commission the Pico 3 7 m il y gt Ii i W Wire Inside of Your Program Pico displays a small arrow when creating a circuit connection Pressing Alt activates the arrow and the cursor buttons to move it Alt also has two other functions e From the left contact field press Alt to i
62. 4 inputs 1760 L18DWD xx 2 4 Electrical Isolation To Power Supply No No No Publication 1760 UM001D EN P September 2005 g A 8 Specifications Specification 1760 L12DWD 1760 L12DWD ND 1760 L18DWD EX 1760 L18DWD EXND 1760 L12BBB 1760 L12BBB ND 1760 L12BWB 1760 L12BWB NC 1760 L12BWB ND 1760 L18BWB EX 1760 L18BWB EXND 1760 L20BBB EX 1760 L20BBB EXND 1760 1 12 0 8 1 1760 1B1212XOW6I To the Digital Inputs No No No To the Outputs Yes Yes Yes Input Type voltage voltage voltage Signal Range 0 to 10V de 0 to 10V dc 0 to 10V dc Analog Resolution 0 1V 0 1V 0 1V Input Impedance 11 2KQ 11 2K Q 11 2K Q Accuracy of Two Pico Devices 3 of actual value 3 of actual value 3 of actual value Within a Single 2 of actual value 0 12V 2 of actual value 0 12V 2 of actual value 0 12V Device 17 18 Analog to Digital Conversion Debounce ON 20 ms Debounce ON 20 ms Debounce ON 20 ms ui Debounce OFF every cycle Debounce OFF every cycle Debounce OFF every cycle Input Current 1mA 1mA 1 mA Cable Length shielded 30m 98 ft 30m 98 ft 30m 98 ft 1 Delay times for expansion modules are circuit delays only Additional time is needed to transfer the status to the controller See Table on page 9 2 Publication 1760 UM001D EN P September 2005 High Speed Counters High Speed Counter Inputs I1 to 14 1760 L12BBB 1760 L12BBB ND
63. 4V dc OV gt NC NC R1 R2 R4 R5 R6 R7 RB R9 R10 R11 R12 424V COM QOO OOOOOOOOOOOQOQO Connect 12 V dc Inputs Inputs x 24V dc 24V dc Use input terminals I1 to I8 to connect push buttons switches or 3 or 4 wire proximity switches Given the high off state leakage current do not use 2 wire proximity switches Input Input Signal Voltage Range Specification OFF signal 0 to 4V dc ON signal 8V to 15 6V dc Input Current Example Using 1760 L12DWD 12V dc OV 11 to 16 I9 and 110 3 3 mA at 12V dc 17 and 18 111 and 112 1 1 mA at 12V dc Publication 1760 UM001D EN P September 2005 12V COM NM QOOQOOCOOOCO o 4 12V dc Inputs x 12V dc Installation 2 19 Connect Analog Inputs 1760 LxxBWB xx or 1760 LxxDWD only Inputs I7 and 18 and if present 111 and 112 can also be used to connect analog devices ranging from 0 to 10V dc Analog signals are more sensitive to interference than digital signals Consequently more care must be taken when routing and connecting the signal lines Route the analog wiring e away from power lines load lines and other sources of electrical noise such as hard contact switches relays and AC motor drives e away from sources of radiated heat Incorrect switching states may occur if the analog wiring is not installed correc
64. 5 Retention 7 11 Off Delayed Off Delayed Switching with Random Time Range Retentive Task No load running of a conveyor belt Same as the previous example except implemented using an off delay timer Contacts and relays used Circuit Diagram Parameters Entered I2 TT6 rer 501 S 30 00 Coil Function M16 TRG T8 Sa I3 TT7 RES T6 T7 Single pulse I Bebe J 12 Start conveyor belt MI siue TT8 Time setting for T6 T7 1 g 4 1 01 Conveyor belt motor E a RM16 I3 Stop conveyor belt M16 Stop selected T8 Remaining time I2 and I3 are converted to one shot pulses by T6 T7 Only the actuation of the push button is recognized In the above example T7 does not have to be retentive Signal diagram I3 M16 T8 t t2 t t 30s U Supply voltage Publication 1760 UM001D EN P September 2005 7 12 Retention Publication 1760 UM001D EN P September 2005 Single Pulse Timing Relays Retentive Single pulse timing relays are suitable for metering adhesives liquids etc Task A lubricating device is to always dispense the same quantity of oil Contacts and relays used Circuit Diagram Parameters entered Il TT8 n 01 S 30 00 Coil Function ore mi n Start lubrication LRES 01 Oil valve T8 Oil time
65. 60 IB12X0 B8 1760 IB1212XOW6I Number of Inputs 8 1760 L12DWD xx 12 1760 L18DWD xx 12 2 inputs I7 and 18 4 inputs I7 18 111 112 for 1760 L18xxx and 1760 L20xxx usable as analog inputs Status Display LCD if provided Electrical Isolation To Power Supply No No No Between Inputs No No No To the Outputs Yes Yes Yes Rated Voltage 12V dc 24V dc 24V dc Off State Voltage 4 0V dc 11 to l8 5 0V dc lt 5 0V dc I1 to 112 R1 to R12 On State Voltage 8V dc 11 to l8 e 15 to 28 8V dc I1 to 16 e 15 to 28 8V dc I1 to 16 I9 e 8 to 28 8V dc I7 18 to 112 R1 to R12 e 8 to 28 8V dc I7 18 Input Current e 3 3 mA at 12V dc I1 to 16 19 to 112 1760 L18DWD xx e 1 1 mA at 12V dc 17 18 e 3 3 mA at 24V dc I1 to I6 e 2 2 mA at 24V dc 17 18 e 3 3 mA at 24V dc I1 to I6 19 to 112 R1 to R12 e 2 2 mA at 24V dc I7 18 Delay Time from 0 to 1 Debounce ON 20 ms 20 ms 20 ms Debounce OFF Nominal 0 3 ms Nominal 0 25 ms Nominal 0 25 ms Delay Time from 1 to 0 Debounce ON 20 ms 20 ms 20 ms Debounce OFF e Nominal 0 3 ms I1 to 16 e Nominal 0 4 ms I1 to I6 e Nominal 0 4 ms I1 to I6 and 19 to 110 1760 L18xxx e Nominal 0 35 ms 17 18 and 111 to 112 1760 L18xxx e Nominal 0 2 ms 17 18 e Nominal 0 2 ms 17 18 Cable Length unshielded 100m 328 ft 100m 328 ft 100m 328 ft Analog Inputs Number of Inputs 2
66. 8 No more than one unsuppressed load should be operated in each output group The unsuppressed load should be switched no more frequently than 0 5 Hz once every two seconds Specifications 13 Cycle Time 1760 L12xxx Function Number Time Duration Total in ps Basic pulse 1 210 Refresh 1 3500 Contacts and bridged contact fields 20 Coils 20 Circuit connections from the first one to the 0 last one with empty ones in between Connecting lines only mM 20 Timing relays see Table below Counters see Table below Analog value function relays see Table below Total Number h R2 B 4 s je l8 Timing relays in us 20 40 80 120 160 200 240 280 Counters in us 20 50 90 130 170 210 260 310 Analog value processors in us 80 100 120 140 160 180 220 260 1760 L18xxx Function Number TimeDuration us Total Basic pulse 1 520 Refresh 5 00 Contacts and bridged contact fields 40 Coils 20 Circuit connections from the first one to the 70 last one with empty ones in between Connecting lines only 40 Timing relays see Table below Counters see Table below Analog value function relays see Table below Total Publication 1760 UM001D EN P September 2005 g A 14 Specifications Dimensions Publication 1760 UMOO01D EN P September 2005
67. 8 8 Inside Pico Publication 1760 UM001D EN P September 2005 An input signal S1 must be present at the input terminal for at least 20 ms before the switch contact will change from 0 to 1 A in the program If applicable this time must also include the program cycle time B since Pico does not detect the signal until the start of a cycle The same debounce delay C applies when the signal drops out from 1 to 0 Typical delay times with the input debounce delay turned off are a few hundred ys and are given in the specifications in Appendix A Check that there is no electrical interference affecting the input signals when the input delay is disabled Pico responds even to very short signals IMPORTANT Delay Times for Pico AC Units 1760 L12AWA xx and 1760 L18AWA xx The input delay with AC voltage signals depends on the frequency On delay 66 ms at 60 Hz 80 ms at 50 Hz e Off delay I1 to I6 and I9 to I12 66 ms at 60 Hz 80 ms at 50 Hz 17 and I8 150 ms at 60 Hz 160 ms at 50 Hz 1760 L12AWA xx 7 and I8 66 ms at 60 Hz 80 ms at 50 Hz 1760 L18AWA xx ee PU OC a Inside Pico 8 9 If the delay is switched on Pico checks at 33 ms 40 ms for 50 Hz intervals whether there is a half wave present at an input terminal 1st and 2nd pulses in A If Pico detects two pulses in succession the device switches on the corresponding input internally If this is not the case the input is switched o
68. Allen Bradley Pico Controllers Bulletin 1760 User Manual Rockwell Automation Important User Information Solid state equipment has operational characteristics differing from those of electromechanical equipment Safety Guidelines for the Application Installation and Maintenance of Solid State Controls Publication SGI 1 1 available from your local Rockwell Automation sales office or online at http www ab com manuals gi describes some important differences between solid state equipment and hard wired electromechanical devices Because of this difference and also because of the wide variety of uses for No patent liability is assumed by Rockwell Automation Inc with respect to use of information circuits equipment or software described in this manual Reproduction of the contents of this manual in whole or in part without written permission of Rockwell Automation Inc is prohibited Identifies information about practices or circumstances WARNING that can cause an explosion in a hazardous environment which may lead to personal injury or death property damage or economic loss IMPORTANT Identifies information that is critical for successful application and understanding of the product Identifies information about practices or circumstances that can lead to personal injury or death property damage or economic loss Attentions help you ATTENTION e identify a hazard e avoid a hazard
69. Change the Operating Mode If you change from Run to Stop and then back to Run the actual values of the retentive data are retained Modify the Pico Circuit Diagram If a modification is made to the Pico circuit diagram the actual values are retained TIP Even when the retentive relays M13 M14 M15 M16 D1 to D8 and the function relays C8 T8 C5 C6 C7 T7 are deleted from the circuit diagram the retentive actual values are retained after the changeover from Stop to Run as well as after the power is switched off and on Should these relays be used again in the circuit diagram they still have their former actual values Publication 1760 UM001D EN P September 2005 7 4 Retention Retentive Auxiliary Relays Markers Publication 1760 UM001D EN P September 2005 Change the Start Up Behavior in the SYSTEM Menu The retentive actual values in Pico are retained irrespective of the MODE RUN or MODE STOP settings How the Retention Works The retentive markers M13 M14 M15 M16 D1 to D8 should be used in conjunction with the following coil functions Instruction Type Representation in Pico Set S M D Impulse Relay qp M D Reset RM D TIP When the condition for resetting the marker is satisfied the marker is reset It is essential that you note the following points When retention is used the open or closed status of a retentive marker is remembered when power is disconnected When pow
70. Change the counter setpoint to 10 Use the left and right buttons to move the cursor onto the tens digit Use the up and down buttons to modify the value of the digit Press Ok to save the value and Esc to return to the circuit diagram Pico has specific parameter displays for function relays The meaning of these parameters is explained under each relay type Enter the circuit diagram up to contact of the timing relay Set the parameters for T1 The timing relay works like a flasher blink relay The Pico symbol for the flasher blink relay is shown in the screen to the left It is set at the top left of the parameter display Press the down arrow and select the flasher blink relay symbol Use the right arrow to move to the first time setpoint I1 Press Ok then press the right arrow Use the arrows to enter the value 01 000 and press Ok The time setpoint I1 for the pause time is 1 second Use the down arrow to enter the value of the second setpoint I2 Set this value to 0 5 seconds This is the time value for the pulse time Press Esc to leave the parameter entry The values are now stored I5 cci I6 RC1 C1 TTL 1 01 C1 N S 0010 C 0000 Cl N S 0010 C 0007 C1 N S 0010 B 0010 Ti i S S1 00 500 S2 00 250 00 200 Draw a Circuit Diagram with Pico 4 25 13 Complete the
71. Diagram Program on page 3 4 you should have gained an initial impression on how to create a program in Pico This chapter describes the full range of Pico functions and provides further examples of how to use Pico Buttons for Drawing Circuit Diagrams Press To Delete branch contact relay or empty rung in the circuit diagram e Toggle between break and make contact e Connect contacts and relays e Add circuit connections rungs Publication 1760 UM001D EN P September 2005 4 2 Drawa Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 Up Down Arrows e Change value e Move cursor up and down Left Right Arrows e Change between parameters e Move cursor left and right Cursor Button Set to P Button Function if enabled e Left Arrow Input P1 Right Arrow Input P3 e Up Arrow Input P2 e Down Arrow Input P4 e Undo settings from previous Ok e Exit current display e Change or add a contact relay e Save the setting Draw a Circuit Diagram with Pico 4 3 Button Operation The cursor buttons in the Pico circuit diagram perform three functions The current mode is indicated by the appearance of the flashing cursor e Move e Enter e Connect In Move mode you can use the arrow keys to move the cursor around the circuit diagram in order to select a branch contact or relay coil Use Ok to switch to Enter mode so that you can enter or change a va
72. E 3 Press Esc to cancel Load a Circuit Diagram from the Memory Module 1 Select the CARD gt DEVICE menu option DEVICE gt CARD 2 Press Ok if you want to delete the Pico CARD gt DEVICE program and replace it with the memory DELETE CARD module program 23 Press Esc to cancel If a problem occurs during the operation Pico displays the message INVALID PROG INVALID BROG This either means that the memory module is empty or that the program in the memory module contains functions that Pico does not recognize e The time switch function relays only work with Pico versions with a real time clock The analog comparator function is only used with 12V dc and 24V dc versions of Pico e Text displays jump and S markers only work with the 1760 L18xxx TTE 17 the memory module is password protected the password will also be transferred to the Pico memory and will be active immediately Delete a Program from the Memory Module 1 Select the DELETE CARD menu option DELETE 2 Press Ok to confirm the prompt and delete the card content 3 Press Esc to cancel PicoSoft Allen Bradley Pito 1760 L1BNWA EXND Series B Revision A Line Voltage 24V ac 50 60Hz Line Power 7VA Inputs 24V ac Relay Outputs 70A 240V ac B300 8 24V dc R300 Torque 5 7 Ib in AWG 22 12 Made in Germany Save and Load Circuit Di
73. Enable of the high speed counter on 1 signal coil activated DC13 DC14 Counting direction e Status 0 not activated up counting e Status 1 activated down counting RC13 RC14 Reset coil triggered Actual value reset to 00000 IMPORTANT Publication 1760 UM001D EN P September 2005 The high speed counter can also be enabled specifically for a special operating state This has the advantage that the cycle time of the device is only burdened with the counting when it is taking place If the high speed counter is not enabled the cycle time of the device is shorter Draw a Circuit Diagram with Pico 4 41 Parameter Display and Parameter Set for the High Speed Counter C13 H S 00950 C13 Counter function relay number 13 H H High speed counter mode t e appears in the Parameter menu e does not appear in the Parameter menu S Setpoint constant from 00000 to 32000 In the parameter display of a counter relay you change the mode the setpoint and the enable of the parameter display Value Range The counter relay is in Run mode Behavior When Value Range is Reached The Pico control relay is in Run mode The value is retained if the counter reaches 32000 If the counter counts down and reaches 0 this value is retained Parameter display in Run mode C13 H S 00200 Current setpoint constant Contact has not switched C 00877 Contact has switched Actual
74. Esc to leave the parameter display The parameter display is opened via the PARAMETER menu f coil terminals for counters and timers are not displayed here even if they have been programmed Publication 1760 UM001D EN P September 2005 6 8 System Settings D1 15 21 D MO FR ON 19 00 OFF 23 30 1 B 15 21 D ON 00 00 OFF 00 00 Publication 1760 UM001D EN P September 2005 Variable Parameters for Function Relays You can modify the relay parameters used in the circuit diagram in three different ways All circuit diagram parameters can be adjusted in Stop mode via the circuit diagram e Setpoints can be modified in Run mode via the circuit diagram e Setpoints can be modified via the PARAMETER menu The following setpoints can be modified e The timer setpoints for timing relays The counter setpoints of counter relays The day and ON OFF times of time switches The comparison setpoint of analog comparators In Run mode Pico operates with a new setpoint as soon has it is modified in the parameter display and saved Example Modify Switching Times for Outside Lighting The outside lighting of a building is automatically switched on from 19 00 to 23 30 7 00 pm to 11 30 pm Mondays to Fridays in the Pico program The parameter set for the time switch function relay 1 is saved in channel A and looks like this The outside lighting is now required to also turn on
75. M S IL 01 500 I2 00 000 00 000 Programming a Timing Relay A timing relay is integrated into your circuit in the form of a contact The function of the relay is defined via the parameter display The relay is started via the trigger input TRG and can be reset via the reset input RES A timer also resets when it is turned off To prevent unpredictable switching states use each coil of a relay only once in the circuit diagram At least two elements are needed in the circuit diagram for a timing relay A relay contact in the contact field in this case T2 A trigger coil in the coil field in this case TT2 You can also wire up the reset coil RT2 if you wish to use an external reset signal Enter the number of the relay contact T2 and press Ok The parameter set for timing relay T2 is displayed Specify the function of the relay Parameters for Timers The parameter display for a timing relay is used to modify the switching function setpoint time and timebase units and to enable or disable parameter access Switch Function Parameter Display T1 IL S Timebase Units I1 00 000 Current Value d 30000 Setpoint T 00 000 The coil terminals are not shown if you access the parameters via the PARAMETER menu option The actual time is only displayed in Run mode To view the actual time call up the parameter display via the power flow display or using the PARAMETER option 2X
76. Supply and Inputs 300V ac reinforced insulation Contacts Relays Conventional Thermal Current 8A 10 A UL Recommended for Load 500 mA 12V ac dc Short Circuit Resistance COS 1 16 A characteristic B B16 at 600 A Short Circuit Resistance COS 0 5 to 0 7 16 A characteristic B B16 at 900 A Rated Impulse Withstand Voltage imp Contact Coil 6 KV Rated Insulation Voltage U Rated Operational Voltage U 250V ac Isolation to EN 50178 Between Coil and Contact 300V ac reinforced insulation Isolation Contacts to EN 50178 Between Two 300V ac reinforced insulation Making Capacity AC 15 COS 0 4 250V ac 600 Ops h 300 000 switching operations DC 13 L R lt 150 ms 24V dc 1A 500 Ops h 200 000 switching operations Breaking Capacity AC 15 COS 0 7 250V ac 3 A 600 Ops h 300 000 switching operations DC 13 L R lt 150 ms 24V DC 1 A 500 Ops h Publication 1760 UM001D EN P September 2005 200 000 switching operations Specification Filament Lamp Load 1760 L12AWA 1760 L12AWA NC 1760 L12AWA ND 1760 L12BWB 1760 L12BWB NC 1760 L12BWB ND 1760 L12DWD 1760 L12DWD ND 1760 L12NWN 1760 L12NWN ND 1000 W at 230 240V ac 25 00 500 W at 115 120V ac 25 000 Specifications 11 1760 L18AWA 1760 L18AWA EX 1760 L18AWA EXND 1760 L18BWB EX 1760 L18BWB EXND 1760 L18DWD EX 1760 L18D
77. UMMER TIMH NONE RULE EU Y US SET CLOCK SUMMER TIME gt NONE A RULE SUMMER START EU SUMMER END GB Y Pu US AM HH MM DD MM 00 00 HH MM 00 00 DIFF 0 00 SET CLOCK SUMMER TIME NONE A RULE SUMMER START EU SUMMER END cB Y US SET CLOCK SUMMER TIME NONE A RULE SUMMER START EU y SUMMER_END GB a US AM HH MM DD MM 00 00 HH MM 00 00 DIFF 0 00 Main Menu with Password Protection Password Entry Main Menu ij ALL PASSWORD Unlock passworda DELETI UN Four Wrong ARAMETER Entries P INFO SET CLOCK Y Correct Entry Status Display PASSWORD RUN Publication 1760 UMOO01D EN P September 2005 System Overview 1 11 System Menu Password Entry System Set Password ENTER PASSW CHANGE PW SECURITY Password SE ACTIVATE PW SYSTEM RANGE LANGUAGE CONFIGURATOR Change Password ACTIVATE PW ENTER PASSW l3 CHANGE PW CHANGE PW i XXXX ACTIVATE PW PROGRAM PROGRAM Password _ PARAMETER PARAMETER f RANGE CLOCK CLOCK i pU OPRTNG MODE Y
78. WD EXND 1760 L18NWN EX 1760 L18NWN EXND 1760 1A12X0W6I 1760 IB12XOW6I 1760 OW2 0 operations operations Fluorescent Tube with Ballast 10 x 58 W at 230 240V ac 25 000 operations Conventional Fluorescent Tube Compensated 1 x 58 W at 230 240V ac 25 000 operations Fluorescent Tube Uncompensated 10 x 58 W at 230 240V ac 25 000 operations Relay Operating Frequency Mechanical Switching Operations 10 million 107 Mechanical Switching Frequency 10 Hz Resistive Lamp Load 2Hz Inductive Load 0 5 Hz Transistor Outputs Output Specifications Specification 1760 L12BBB 1760 L12BBB ND 1760 1B12X0B8 1760 L20BBB EX 1760 L20BBB EXND Number of Outputs 4 8 Output Type semiconductors Rated Voltage 24V dc Permissible Range 20 4 to 28 8V dc Residual Ripple 596 Supply Current Outputs OFF 18 mA nominal 32 mA maximum Outputs ON 24 mA nominal 44 mA maximum Publication 1760 UM001D EN P September 2005 g A 12 Specifications Specification Reverse Polarity Protection 1760 L12BBB 1760 L12BBB ND 1760 IB12X0B8 1760 L20BBB EX 1760 L20BBB EXND Yes CAUTION If voltage is applied to the outputs when the polarity of the power supply is reversed this will result in a short circuit Isolation from Power Supply and Input Terminals 500V dc Rated Current 0 5 A dc maximum Lamp Load 5W Off State Leakage Current 0 1 mA per
79. Wire Terminals Publication 1760 UM001D EN P September 2005 Connect the Serial Cable 1760 RM cable Cable Wire Color Code cd 00000000 X5 green 39 EN X4 white yellow 00000000 X2 bow i X1 gray 4 Remove the interface cover Using a screwdriver push on the terminal latch Insert each wire into its designated terminal on the interface connector Replace the interface cover Plug the other end of the cable into the Pico controller or I O module Required Tools Slot head screwdriver width 3 5 mm torque 0 57 to 0 79 Nm 5 to 7 in IbD Installation 2 9 Wire Size e Solid AWG 22 to AWG 12 e Stranded AWG 22 to AWG 12 Connect the Incoming For incoming power technical specifications refer to Appendix A Power ELECTRICAL SHOCK HAZARD The memory module and PC cable socket are at the A potential of L2 There is a danger of electric shock if L2 is not grounded Do not make contact with electrical components under the socket cover TIP A brief current surge is produced when powering on the unit for the first time Do not switch the unit using reed contacts since these may burn or melt 1760 L12AWA L12AWA NC L12AWA ND L18AWA I L1 12 e F1 OCOGOOOOOCOO 100 240V ac Inputs x 100 240V ac 50 60Hz Publication 1760 UM001D EN P
80. Wiring Inputs 1760 L12AWA xx 1760 L12BWB xx and 1760 L12DWD on page 2 22 1760 L18AWA xx and 1760 L18BWB EX on page 2 23 1760 IA12XOWE6I on page 2 23 1760 0W2 page 2 23 Use the inputs of the expansion modules as contacts in the Pico circuit diagram as you would use the inputs on the Pico controller The expansion inputs are R1 to R12 TIP R15 and R16 are used for expansion overload detection for the transistor expansion module 1760 IB12XOBS8 as described on page 9 4 Publication 1760 UM001D EN P September 2005 9 2 Use of Expansion Modules Operation Publication 1760 UM001D EN P September 2005 Outputs Expansion module outputs are processed as relay coils or contacts in the same way as they are on the Pico controller The expansion output relays are numbered 1 to S8 Expansion module 1760 IA12XOW6I provides 6 relay outputs The other outputs S7 and S8 can be used as markers Expansion module 1760 IB12XOB8 provides 8 transistor outputs See Monitor for Short Circuit or Overload on page 9 4 for information on output faults How the Expansion Module is Recognized When at least one R contact or S contact coil is used in the circuit diagram the Pico controller assumes that an expansion module is connected Data Transfer Behavior The input and output data of the expansion module is transferred serially in both directions Take into account the modified reaction times of the inputs and outputs when u
81. able protection 2 11 Changeover circuit 4 57 Changing menu level 3 5 Changing to summer time 6 10 Changing to winter time 6 10 Circuit connection Deleting 4 12 Inserting 3 7 4 11 Circuit diagram Checking 4 13 Circuit connection 4 6 Coil field 4 6 Contacts 4 6 Deleting 3 9 Fast entry 3 9 Grid lines 3 5 4 6 Internal processing 8 1 Loading 5 3 5 6 Overview 4 6 Storing 5 3 5 6 Testing 3 8 4 13 Wiring 4 10 Entry 3 7 Circuit diagram display 3 5 4 6 Coil field 4 6 Index Coil function 4 15 4 16 4 17 Impulse relays 4 17 Latching relays 4 18 Overview 4 14 common techniques used in this manual Preface 2 Comparing analog values 4 47 Connecting 20 mA sensors 2 21 Analog inputs 2 19 Contactors relays 2 22 Light intensity sensors 2 20 Proximity switches 2 17 2 18 Pushbuttons switches 2 17 2 18 Setpoint potentiometers 2 20 Temperature sensors 2 21 Connecting relay outputs 2 22 Connections Deleting 4 11 Entry 4 10 Position in the circuit diagram 4 6 Contact 4 9 Cursor buttons 4 12 Entry 3 6 Inverting 3 7 Contact fields 4 6 contacting Allen Bradley for assistance Preface 3 Contactor 4 15 4 16 4 17 contactors bulletin 100 surge suppressors for 2 14 Contacts Deleting 4 9 Entry 4 8 Modifying 4 8 Overview 4 4 Counter frequency 4 34 Counter relays 4 32 Parameters 4 35 Cursor display 1 12 4 3 Cycle 8 1 D Debounce Activating 6 10 Delay times for Pico AC 8 8 for Pico DC 8 7 Delet
82. ac Yes Yes No 1760 L12AWA NC No Yes 1760 L12AWA NDU Yes No 1760 L18AWA 12 100 to 240V ac 6 relay Yes Yes 1760 L18AWA EXP Yes Yes 1760 L18AWA EXNDUIS Yes No 1760 L12BWB 8 24V dc 4 relay 24V dc Yes Yes 2 0 to 10V dc 1760 L12BWB NC No Yes 1760 L12BWB ND Yes No 1760 L12BBB 4 MOSFET Yes Yes 2 0to 10V dc 1760 L12BBB ND Yes No 1760 L12NWN 8 24V ac 4 relay 24V ac Yes Yes 1760 L12NWN ND Yes No 1760 L12DWD 8 12V dc 12V dc Yes Yes 1760 L12DWD ND Yes No 1760 L18BWB EX 9 12 24V dc 6 relay 24V dc Yes Yes 1760 L18BWB EXNDUJ3 6 relay Yes No 2 0 to 10V dc 1760 1 208 8 MOSFET Yes Yes 4 0 to 10V dc 1760 L20BBB EXNDUIP 8 MOSFET Yes No 1760 L18DWD EX 12 12V dc 6 relay 12V dc Yes Yes 1760 L18DWD EXNDU GI 6 relay 12V dc Yes No 1760 L183NWN EX 3 12 24V ac 6 relay 24V ac Yes Yes 4 0 to 10V dc 1760 L18NWN EXNDU3 12 24V ac 6 relay Yes No 1 NC no real time clock 2 ND no display 3 suitable for use with expansion modules Publication 1760 UM001D EN P September 2005 g 1 4 System Overview Publication 1760 UMOO01D EN P September 2005 Expansion Modules Item Description Incoming Power Inputs Write On Surface Outputs on A wy N Status LED Use Pico expansion modules with Pico EX models to increase your I O capacity The following modules are available Catalog Number In
83. ace The Pico interface is used to exchange and save circuit diagrams to a memory card or PC Each memory card contains one circuit diagram and its associated Pico settings The PicoSoft PC software allows you to control Pico from your PC which is connected using the 1760 CBL PMO2 cable Publication 1760 UM001D EN P September 2005 Glossary Publication 1760 UM001D EN P September 2005 2 Memory Module The memory module is used to store your Pico circuit diagram together with its parameter and Pico settings Your data on the memory module will be retained even if the power supply fails or is switched off The memory module is inserted into the interface slot on the Pico device Operating buttons Pico has eight operating buttons These are used to select menu functions and create circuit diagrams The large round button in the middle is used to move the cursor DEL ALT ESC and OK all perform additional functions Operating mode Pico has two operating modes RUN and STOP RUN mode is used to process your circuit diagram with the controller running continuously In STOP mode you can create your circuit diagrams Output You can connect various loads to the four Pico outputs such as contactors lamps or and motors In the circuit diagram the outputs are activated via output relay coils Q1 to Q4 or Q6 on the controllers or S1 through S6 Cor S8 on the expansion modules P buttons The P buttons can be used to simula
84. agram which Pico contains may not be completed or the system or machine may be in a state which Pico is not permitted to control The outputs should not be activated when Pico is powered on Set the Start Up Behavior Pico models without a display can only be started in Run mode Requirement Pico must contain a valid circuit diagram Enter the System menu If Pico is protected by a password the System menu is not available until Pico is unlocked see Unlock Pico on page 6 4 Specify in which operating mode Pico should start when power is applied MODE RUN STOP is a toggle menu The menu always displays the operating mode into which you can change Activate RUN Mode The default setting for Pico is displayed as RUN MODE In other Words Pico starts in Run mode when the power is applied If there is no check mark next to RUN MODE select RUN MODE from the menu and press Ok Press Esc to return to the status display DEBOUNCE P BUTTONS CARD MODE Pico System Settings 6 13 Deactivate RUN Mode Select RUN MODE from the menu and press Ok The RUN MODE is deactivated Start Up Behavior Menu Displayed Status of Pico After Start Up Pico begins in Stop mode RUN MODE Pico is in Stop mode Pico begins in Run mode RUN MODE Pico is in Run mode Behavior When the Circuit Diagram is Deleted The setting for the start up behavior is a Pico device function When the circuit diagram is deleted this does
85. agrams 5 5 PicoSoft and PicoSoft Pro are PC programs for creating testing and managing Pico programs You should only transfer data between the PC and Pico using the special PC interface cable 1760 CBL PMO2 which is available as an optional accessory PicoSoft software is available at no charge from www ab com pico PicoSoft Pro software is a purchasable product for use with both Pico and Pico GFX controllers TIP Software Compatibility If you are using programming software to program the Pico controller be sure that you are using the correct software version You must use PicoSoft version 6 1 or higher for the Series B Pico controller Earlier versions of PicoSoft can only be used with Series A Pico controllers IMPORTANT Find the Series Letter The Series letter is printed on the side of the housing as shown Download the Software You can download a free copy of PicoSoft version 6 1 from our web site Go to http www ab com picosoft6 To receive PicoSoft Pro please contact your Allen Bradley Distributor or Rockwell Automation representative Publication 1760 UM001D EN P September 2005 5 6 Save and Load Circuit Diagrams Publication 1760 UM001D EN P September 2005 Connect the Pico to the PC ELECTRICAL SHOCK HAZARD Only use the 1760 CBL PMO2 cable with the Pico A units Use of another cable may place the user in danger of electrical shock 1 Connect the PC cable to the serial PC int
86. ainst electric shock up to a stated voltage level and is tolerant of a single fault Refer to EN 61131 2 for additional information TIP The Pico controller and the expansion module can be of different voltage types Publication 1760 UM001D EN P September 2005 g 1 6 System Overview Remote Processor Remote Processor Features 00000000 00000000 1 24V dc Voltage supply 2 Interface Terminal with cover for connecting cable Operating Principles Operating Buttons Button Function Del Delete object in the circuit diagram Alt Special functions in the circuit diagram Cursor Move cursor Buttons Select menu item Choose contact numbers values times etc Ok Next menu level store your entry Esc Previous menu level cancel your entry Publication 1760 UMOO01D EN P September 2005 System Overview 1 7 Using Menus to Choose Values Press To and together Show system menu e Go to next menu level e Select menu item e Store your entry gt e Return to last menu level e Cancel your entry since the last Ok e Change menu item e Change value e Change position Cursor Button Set to P Button Function if enabled e Left Arrow Input P1 e Right Arrow Input P3 e Up Arrow Input P2 e Down Arrow Input P4 Selecting the Main and System Menus 1760 L12xxx Status Display Inputs Ou
87. al 70 mA at 230 240V ac 50 Hz Nominal 20 mA Nominal 35 mA at 24V ac 50 60 Hz Nominal 200 mA 1760 L12 Nominal 300 mA 1760 L18 Voltage dips 20 ms EN 61131 2 20 ms EN 61131 2 20 ms EN 61131 2 Power Consumption at 115 120V ac Nominal 5 VA Nominal 10 VA at 230 240V ac Nominal 5 VA Nominal 10 VA at 24V ac Nominal 5 VA 1760 L12 Nominal 7 VA 1760 L18 Publication 1760 UM001D EN P September 2005 g A 4 Specifications Incoming Power Rated voltage DC Models 1760 L12DWD 1760 L12DWD ND 1760 L18DWD EX 1760 L18DWD EXND 1760 L12BBB 1760 L12BBB ND 1760 L12BWB 1760 L12BWB NC 1760 L12BWB ND 1760 L18BWB EX 1760 L20BBB EX 1760 L20BBB EXND 1760 IB12XOW6I 1760 1B12X0B8 Rated value 12V dc 43096 15 12V dc 43096 15 24V dc 20 15 24V dc 42096 15 Range 10 2 to 15 6V dc 10 2 to 15 6V dc 20 4 to 28 8V dc 20 4 to 28 8V dc Residual ripple lt 5 lt 5 596 596 Input current Nominal 140 mA Nominal 200 mA Nominal 80 mA Nominal 140 mA at 12V dc at 12V dc at 24V dc at 24V dc Voltage dips 10 ms EN 61131 2 10 ms EN 61131 2 10 ms EN 61131 2 10 ms EN 61131 2 Power dissipation at 24V dc Nominal 2 W Nominal 3 5 W Nominal 2 W Nominal 3 5 W Publication 1760 UM001D EN P September 2005 Inputs AC Models Specification Digital inputs 24V ac 1760 L12NWN 1760 L12NWN ND Specifications A 5 1760 L18NWN EX 1760 L18NWN EXND
88. am with Pico 4 51 Example Pico text display can be very useful Circuit Diagram Elements Text Display Contacts Make Contact D Break Contact D Numbers 1108 Coils D Numbers 1108 Coil functions bs B p LCD Display The LCD display can show up to 12 characters per line and up to 4 lines Variables Actual values and setpoints of timing relays and counters as well as the current time can be displayed in lines 2 or 3 character positions 5 to 8 character positions 5 to 9 for time display If you have entered text at these locations they will be overwritten by the variable values Enter a blank space as the placeholder in order to continue text after the variable display Function The text display relays D function in the circuit diagram as normal output instructions All eight text display relays can be used retentively If text is assigned to a text display it will be displayed on the LCD if the coil is set to 1 For this to happen Pico must be in Run mode and the status display must be showing before the text is activated The following conditions apply to D2 and D8 Publication 1760 UM001D EN P September 2005 4 52 Draw a Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 When activating several text displays they are displayed automatically every 4 5 in succession This process is repeated until none of the display relays are set to 1 stop mode is selected
89. ameter Display Parameter Description Al Analog value comparator function relay 1 EQ Equal mode The function rerlay has the following modes e LT less than e LE less than equal to e EO equal to e GE greater than equal to e GT greater than t appears in the Parameter menu does not appear in the Parameter menu Comparison value 1 positive value 17 18 111 112 actual value T1 to T16 C1 to C16 F1 Gain factor for 11 11 F1 x actual value at 11 F1 positive value from 0 to 9999 12 Comparison value 2 positive value 17 18 111 112 actual value T1 to T16 C1 to C16 F2 Gain factor for I2 I2 F2 x actual value at 12 F2 positive value from 0 to 9999 05 Offset for the value of I1 I1 OS plus actual value at 11 OS positive value from 0 to 9999 HY Switching hysteresis for value 12 Value HY applies both to positive and negative hysteresis e 2 Actual value at 12 HY e 2 Actual value at 12 HY e HY Positive value from 0 to 9999 EXAMPLE Analog comparator A1 latches sets relay Q1 if the actual value drops below the lower setpoint value of 7 1 V Comparator A2 unlatches resets the relay if it rises above the upper setpoint value of 7 5 V Thus the difference switching hysteresis between the two voltage setpoint values is 0 4 V Draw a Circuit Diagram with Pico 4 49 The parameter settings are A
90. blication 1760 UM001D EN P September 2005 Inductive load devices such as motor starters and solenoids require the use of some type of surge suppression to protect and extend the operating life of the controller s output contacts Switching inductive loads without surge suppression can SIGNIFICANTLY reduce the life expectancy of relay contacts By adding a suppression device directly across the coil of an inductive device you prolong the life of the output or relay contacts You also reduce the effects of voltage transients and electrical noise from radiating into adjacent systems The following diagram shows an output with a suppression device We recommend that you locate the suppression device as close as possible to the load device dc or L1 Suppression VAC DC Device Out 0 Out 1 Out 2 acordc Out3 Outputs Out 4 Out 5 Out 6 Out 7 COM COM or L2 If the outputs are dc we recommend that you use an 1N4004 diode for surge suppression as shown below 24V dc VAC D Out 0 Out 1 Out 2 Relay or Solid Out 3 State dc Outputs gur 4 Qut 5 A 14004 Diode LOutG Out 7 24V dc common COM Suitable surge suppression methods for inductive ac load devices include a varistor an RC network or an Allen Bradley surge suppressor all shown below These components must be appropriately rated to suppress the switching transient characteristic
91. c Example Using 1760 L12AWA L1 L2 F1 UN T M 7 OOOOOOOQOOC 100 to 240V ac Inputs x 100 to 240V ac 50 60Hz Example Using 1760 1A12X0W6l F1 a o T NC NC R2 R4 R5 R6 R7 R8 RI R10 R11 R12 L1 OO OOOOOOOOOOODOOOD H Inputs x 120 240V ac 120 240V ac 50 60Hz Publication 1760 UM001D EN P September 2005 g 2 16 Installation Publication 1760 UM001D EN P September 2005 Wire Lengths Severe electromagnetic interference to wires can cause inputs to signal 1 without the proper signal being applied Observe the following maximum cable lengths e 1 to I6 I9 to 112 R1 to R12 40m 130 ft without additional circuits e 7 and I8 100m 330 ft without additional circuits ATTENTION Do not use reed relay contacts on I7 or I8 These may burn or melt due to the high current of I7 and I8 Two wire proximity sensors have a residual off state leakage current If this residual current is too high the input may indicate the input is ON when the device is actually off Use inputs I7 and I8 for these types of input devices If more inputs are required use a bleeder resistor or bleeder capacitor for inputs I1 through I6 and I9 through 112 Increase the Input Current Use the following input circuit for electrical noise immunity and when using two wire proximity switches L1 12
92. cal 1760 IA12X0W6l High energy pulses surge 0 5 KV power cable IEC EN 61000 4 5 Pico 1760 LxxBWB xx symmetrical severity level 2 1760 1B12X0B8 Line Conducted 10V IEC EN 61000 4 6 Interference Dielectric strength Clearance and creepage EN 50178 UL 508 CSA C22 2 No 142 distances Dielectric strength EN 50178 Backup accuracy of real tim e clock except NC Clock capacitor back up at 25 C 77 F Nominal 64 hours at 40 C 104 F Nominal 24 hours Accuracy of the real time clock Nominal 5s day 0 5 h year Repetition accuracy of timin g relays Accuracy of timing relays 1 of value Power Supply Ambient mechanical conditions Specifications A 3 Specification Value Standard Resolution Range s 10 ms Range M S 1s Range H M min Retentive memory Write cycles of the 2100 000 retentive memory AC Models 1760 L12AWA 1760 L18AWA Incoming Power 1760 L12AWA NC 1760 L12AWA ND 1760 L18AWA EX 1760 L18AWA EXND 1760 1A12X0 W6l 1760 L12NWN 1760 L12NWN ND 1760 L18NWN EX 1760 L18NWN EXND 100 to 240V ac 10 15 Rated value sinusoidal 100 to 240V ac 10 15 24V ac 10 15 96 Range 90 to 264V ac 85 to 264V ac 20 4 to 26 4V ac Frequency rated value tolerance 50 60 Hz 5 50 60 Hz 5 50 60 Hz 5 Line Current at 115 120V ac 60 Hz Nominal 40 mA Nomin
93. channel Maximum Output Voltage Drop 1V dc Short Circuit Protection Yes thermal detected via diagnostics input 116 115 R15 R16 Short Circuit Tripping Current I for Load lt 10 milli ohm 0 7 A lt I lt 2 A depending on the number of active channels and their load Short Circuit Current 8 A total maximum 16 A total maximum 16 A peak 32 A peak Thermal Cutout Yes Maximum Switching Frequency with Constant Resistive Load RL 100 40 000 Hz depending on circuit diagram and load Parallel Connection of Outputs with Resistive Load Inductive Load with External Suppression Circuit Combination Within a Group see page 2 25 Group 1 01 to 04 S1 to 4 Group 1 Q1 to 04 S1 to S4 Group 2 05 to 08 S5 to S8 Number of Outputs 4 maximum Total Maximum Current 20A CAUTION Outputs must be actuated simultaneously and for the same time duration Status Display of the Outputs Publication 1760 UM001D EN P September 2005 LCD display if provided Inductive Load without external suppression An unsuppressed inductive load applies stresses to the transistor output when the load is switched off It is recommended that all inductive loads be suppressed To reduce the risk of damage deratings should be applied to the transistor outputs if inductive loads are not suppressed The outputs of the 1760 IB12XOB8 are internally connected in two groups S1 to S4 and 5 to S
94. ched on Pico will only start in Run mode if a memory module with a valid program has been inserted 1 Otherwise select Card Mode and press Ok Pico will start up with the program on the card 2 Press Esc to return to the Status display Deactivation of Card Mode 1 Select Card Mode 2 Press Ok The Card Mode function is deactivated The Pico default setting is for display of the Card Mode menu i e Pico starts in Run Mode without the memory module when the power is switched on Pico allows you to set the cycle time The default setting is 00 ms Cycle time can only be set while Pico is in Stop mode 1 Move to the System menu 2 Select Cycle Time and press Ok The following menu appears 3 Press Ok Pico System Settings 6 15 Retention CYCLE TIME 35 MS 4 Enter cycle time Use left and right arrows to move between parameters Use up and down arrows to change the value 5 Press Ok to save value The minimum set cycle time is 35 ms The range is between 00 ms and 60 ms The cycle time can be lengthened if Pico requires more time to process the program The entry of a set cycle time is only useful in applications involving two step controllers or similar functions With a cycle time setting of 00 ms the Pico processes the circuit diagram and the program at the fastest possible speed It is a requirement of system and machine controllers for operating states or actual values to have retentive setting
95. circuit diagram 14 Press Ok to store the circuit diagram Test Circuit Using Power Flow Display 1 Switch Pico to Run mode and return to the circuit diagram Each parameter set can be displayed using the power flow display for the circuit diagram 2 Move the cursor onto C1 and press Ok The parameter set for the counter is displayed with actual and setpoint values 3 Switch I5 The actual value changes This is represented in the Pico parameter display In the last line C 0007 the counter actual value is equal to seven If the actual value is greater than or equal to the setpoint 10 the left character on the bottom row changes to a black box The contact of counter C1 switches The counter contact triggers the timing relay This causes the warning light to flash at output Q1 Double the flashing frequency 1 Select T1 in the power flow display and press Ok 2 Change the set time I1 to 00 500 and I2 to 00 250 0 5 and 0 25 s 3 Press Ok to save the set time The character on the left of the bottom row indicates whether the contact has switched or not Protect Timer and Counter Settings You can also modify parameter settings via the PARAMETER menu option If you want to prevent other people from modifying the parameters change the access enable symbol from to when creating the circuit diagram and protect the circuit diagram with a password Publication 1760 UM001D EN P September 2005
96. ct fields 9 20 180 Coils 4 20 80 Total rungs from the first one to the last 4 50 200 one with empty ones in between Connecting lines only 3 20 60 Timing relays 2 40 40 Inside Pico 8 5 Function Number Time Duration Total in ps Counters Analog value function relays Total 4270 Example Operating Hours Counter TTS T8 M16 ccs SM16 TB RM16 C8 04 1 RT8 Function Number Time Duration Total in ps Basic pulse 1 210 210 Refresh 1 3500 3500 Contacts and bridged contact fields 17 20 340 Coils 7 20 140 Total rungs from the first one to the last 7 50 350 one with empty ones in between Connecting lines only H 20 40 Timing relays 1 20 20 Counters 1 20 20 Analog value function relays Total 4620 Publication 1760 UM001D EN P September 2005 8 6 Inside Pico Publication 1760 UM001D EN P September 2005 1760 L18xxx Cycle Time For 1760 L18xxx the cycle time can be calculated as follows Function Number Time Duration in ps Total Basic pulse 1 520 Refresh 5700 Contacts and bridged contact fields 40 Coils 20 Total rungs from the first one to the last 70 one with empty ones in between Connecting lines S 40 Timing relays Counters Analog value function relays Total L
97. d 3 or S5 S7 and S8 Outputs connected in parallel must be switched ON and OFF at the same time Switch Inductive Loads Su the following when switching off inductive oads A Suppressed inductive loads cause less interference in the entire electrical system For optimum suppression the suppressor circuits are best connected directly to the inductive load See Use Surge Suppressors on page 2 12 If inductive loads are not suppressed only one inductive load should be switched off at any one time to prevent the output transistors from overheating If in the event of an emergency stop the 24V dc power supply is to be switched off by means of a contact and this would mean switching off more than one controlled output with an inductive load then you must provide suppressor circuits for these loads See the following diagrams 240 S Ue max Uz 33V 8 Publication 1760 UM001D EN P September 2005 g 2 26 Installation Publication 1760 UM001D EN P September 2005 Short Circuit and Overload Behavior If a short circuit or overload occurs on a transistor output this output will switch off The output will switch on up to maximum temperature after the cooling time has elapsed This time depends on the ambient temperature and the current involved If the fault condition persists the output will continue to switch off and on until the fault is corrected or until the power supply is switched
98. e equipped with a real time clock except the units with the NC designation The procedure for setting the time is described in Set Date Time and Daylight Saving Time on page 6 9 Pico has 8 time switches providing a total of 32 switching times Each time switch has four channels which you can use to set four on and off times The channels are set via the parameter display The real time clock has a back up battery This means that it continues to run in the event of a power failure although the time switch relays do not operate The technical data in Appendix A contains details on the battery back up time TIP If you wish to load an existing Pico Series A Controller circuit diagram the existing time switch functions are retained The Pico Series B Controller time switch operates in the same way as a Series A Controller Publication 1760 UM001D EN P September 2005 Q1 A D SU OFF Draw a Circuit Diagram with Pico 4 43 Compatibility between Pico Series A Controllers and Pico Series B Controllers 81 d Ol A AA BB L 1 21 D AA BB 1 oNd LA ON 0 ON or OFF OFF OFF Parameters for Time Switch A time switch has four sets of parameters one for each channel A B C and D These are used to set the day of the week and the turn on and turn of
99. ections It is then wired with connections Insert relay contacts in the three contact fields The first contact field is automatically connected to the voltage Insert the relay coil to be controlled together with its function and designation in the coil field Every line in the circuit diagram forms a circuit connection or ladder logic rung Pico enables 128 circuit connections rungs e Contact Fields Coil Fie Circuit connections rungs Connections Connections are used to produce the electrical continuity between relay contacts and the coil Connections can be created across several rungs Each point of intersection is a connection The circuit diagram display performs two functions In Stop mode it is used to edit the circuit diagram e In Run mode it is used to check the circuit diagram using the Power flow display Draw Circuit Diagram with Pico 4 7 Save and Load Circuit Diagrams There are two ways of saving circuit diagrams in Pico e Save to a memory module e Save to a PC running PicoSoft programming software Once they are saved programs can be reloaded into Pico edited and run All circuit diagram data is saved in Pico In the event of a power failure the data is retained until the next time it is overwritten or deleted Memory Module Each memory module 1760 MM2B can contain one circuit diagram which is inserted into the Pico interface The 1760 MM1 and 1760 MM2 memor
100. er is restored the marker assumes the same state even if the conditions that would have changed its state occurred while the power was disconnected If the conditions have changed the state of the marker will reflect the change following the first program cycle after power is restored This may result in the flicker or chatter of a lamp solenoid or quick responding load Retention is useful for remembering that an event has occurred like a latch or flip flop On the other hand a conventional relay responds continuously to the electrical conditions at its coil For this reason the output energize function i e M13 is not recommended in combination with the retentive markers M13 to M16 and D1 to D8 Because of retention the following coil functions are not recommended M13 to M16 and D1 to D8 Be sure to pay close attention to the example circuits for the individual coil functions Retention 7 5 Examples S R Coil Break Contact Task In your application you need to remember whether a screw was inserted or not When your machine powers up it is important that a screw that has already been screwed in place is not screwed in again otherwise there could be permanent damage to the workpiece Contacts and relays used Coil Function Screw detected Q2 Enable pulse to drive screw M8 Enable screw command M14 Screw present retentive 9 Workpiece transported away reset 14 Circuit diagram
101. erface 2 Insert the Pico plug in the open interface 3 Activate the status display on the Pico 1760 CBL PM02 Pico cannot exchange data with the PC while in any other display mode Use PicoSoft to transfer circuit diagrams from your PC to Pico and vice versa Switch Pico to Run mode from the PC to test and monitor the program Save and Load Circuit Diagrams 5 7 If You Have Trouble PicoSoft catalog number 1760 PICOSOFT provides extensive help on how to use the software To access the help start PicoSoft and click on Help The on line help provides all the additional information about PicoSoft that you will need If a problem occurs during transmission Pico displays the message INVALID PROG INVALID PROG Check whether the circuit diagram contains a function that Pico does not recognize The time switch function relays only work with Pico versions equipped with a real time clock e The analog comparator function relay is only used with 12V dc and 24V dc Pico versions e Text displays jump and S markers only work with the 1760 L18xxx version TITIO Lf the power fails during communication with the PC repeat the last procedure All of the data may not have been transferred between the PC and Pico e After transmission remove the cable and close the cover 1760 CBL PM02 Publication 1760 UM001D EN P September 2005 5 8 and Load Circuit Diagrams Publication
102. f times for the desired channels and to enable or disable parameter access Changing the switching times is described in Chapter 7 You can only change the setting for displaying the parameters via the PARAMETER menu option when you are editing the circuit diagram Ly 7 day time switch function relay 1 A B C D Time switch channels e Appears in the Parameter menu e Does not appear the Parameter menu D Day setting from to ON On time OFF Off time The current time only appears in the parameter display in Run mode Call up the parameter display in Run mode via the power flow display or via PARAMETER in the main menu Switch On and Switch Off Times Parameter Meaning Valid Setpoint Times Day of the week Monday to Sunday MO TU WE TH FR SA SU On time Hours minutes 00 00 to 23 58 No time set Off time Hours minutes 00 00 to 23 58 No time set Publication 1760 UM001D EN P September 2005 4 44 Draw a Circuit Diagram with Pico Parameter Set Displayed via the PARAMETER Menu Option Access enabled Access disabled Example 1 Time switch 1 turns on Monday through Friday between 6 30 am and 9 00 am and between 5 00 pm and 10 30 pm O1A ie 91 D MO FR D MO FR ON 06 30 ON 17 00 OFF 09 00 OFF 22 30 Signal Diagram A on on on Output Example 2 Time switch 2 t
103. ff again as soon as Pico does not detect two successive half waves 1st and 2nd pulses in B If a button or switch bounces A the delay time may be extended by 33 ms at 60 Hz 40 ms at 50 Hz A If the input delay is switched off the delay time is reduced e On delay 16 6 ms at 60 Hz 20 ms at 50 Hz e Off delay I1 to I6 and I9 to 112 16 6 ms at 60 Hz 20 ms at 50 Hz 7 and I8 100 ms at 60 Hz and 50 Hz 1760 L12AWA xx 17 and I8 16 6 ms at 60 Hz 20 ms at 50 Hz 1760 L18AWA xx S1 Pico switches the contact as soon as it detects a pulse A If no pulse is detected Pico switches off the contact B The procedure for changing the delay times is described in Activate Debounce Input Delay on page 6 10 Publication 1760 UM001D EN P September 2005 8 10 Inside Pico Publication 1760 UM001D EN P September 2005 Overview Chapter 9 Use of Expansion Modules Additional I O points can be added to the 1760 Lxxxxx EX Pico models To do this first install the expansion module and connect the inputs and outputs See the following sections of this manual For Mounting See Connect the Expansion Module on page 2 3 Power Supply Connections 1760 IA12X0W61l Expansion Module on page 2 10 1760 IB12XOB8 Expansion Module on page 2 11 Input Wiring Example Using 1760 IA12XOW6l on page 2 15 Example Using 1760 IB12X0B8 on page 2 18 Expansion Modules on page 1 4 Output
104. fields of the circuit diagram Contact Type Make Break 1760 L12xxx 1760 L18xxx Contact Contact 1760 L20xxx Controller Inputs 11 to 18 11 to 112 0 signal 113 113 Expansion Status 1148 Short circuit overload 116 115 to 116 Soft Inputs Keypad P P1 to P4 P1 to P4 Controller Outputs 0 0 Q1 to Q4 Q1 to 08 Internal Marker Bits M M M1 to M16 M1 to M16 Internal Marker Bits N N N1 to N16 N1 to N16 Counters C C1 to C16 C1 to C16 Timers T T T1 to T16 T1 to T16 Real Time Clock Gin Os Qi Os Analog Setpoint A A A1 to A16 1 to A16 Compare Text Display D D 01 to D16 D1 to D16 Expansion Outputs or 5 S 1 to S8 1 to S8 Internal Marker Bits Jump to Label 1 to 8 1 to 8 Expansion Inputs R R R1 to R12 Expansion Overload R R R15 and R16 Detection Draw a Circuit Diagram with Pico 4 5 Contact Type Make Break 1760 L12xxx 1760 L18xxx Contact Contact 1760 L20xxx Operating Hours Counter O 0 01 to 04 01 to 04 Year Time Switch Y Y Y1 to Y8 Y1 to Y8 Master Reset Z Z Z1 to 73 71 to Z3 1 Not available on NC models 2 This applies only to the 1760 LxxBWB xx and 1760 L12DWD 3 This applies only to 1760 L18xxx EX models R15 and R16 are used for expansion overload detection for the transistor expansion module 1760 1B12X0B8 as described on page 9 4 Relays Pico has nine different types of relay for use in a circuit diagram
105. first Then call your local Rockwell Automation representative You can also find a local Rockwell Automation Technical Support contact at e http support automation rockwell com contactinformation Your Questions or Comments on this Manual If you find a problem with this manual or you have any suggestions for how this manual could be made more useful to you please contact us at the address below Rockwell Automation Control and Information Group Technical Communication Dept A602V P O Box 2086 Milwaukee WI 53201 2086 or visit our internet page at http www ab com pico or http www rockwellautomation com Publication 1760 UM001D EN P September 2005 Preface 4 Publication 1760 UM001D EN P September 2005 Chapter 1 System Overview Overview Pico is an electronic control relay with built in logic timer counter and real time clock functions Pico is a control and input device that can perform a variety of tasks in building and machine applications Pico is programmed using ladder diagrams Each programming element is entered directly via the Pico display For example you can connect make and break contacts in series and in parallel connect output relays and markers define outputs as relays flip flop relays or latching relays select timing relays with different functions e assign eight up and down counters display text with variables track the flow of current in the program and
106. he Circuit Diagram If a modification is made to the circuit diagram the actual values are retained ATTENTION Even if the markers and function relays that were retentive are deleted from the circuit diagram the retentive actual values remain when changing from Stop to Run and when switching the device off and on Should these relays be used again in the circuit diagram they will still have their former actual values Change the Startup Behavior in the System Menu The retentive actual values will be retained regardless of the Run mode or Stop mode settings Device information is provided for service tasks and for determining the capability of the device concerned This function is only available with devices featuring a display Publication 1760 UM001D EN P September 2005 6 18 Pico System Settings The device enables the display of the following device information e AC or DC power supply e T transformer output or R relay output e C clock provided A analog output provided LCD display provided e Pico Link Pico Link provided e OS 1 10 204 operating system version e CRC 25825 checksum of the operating system 1 Switch to the main menu Tein The device information is always available The password does not prevent access 2 Select the main menu 3 Use the down arrow to select the INFO menu 4 Press Ok This displays all device information 5 Press Esc to exit the disp
107. hed Actual value 0153 Retention Setting retention on the frequency counter serves no purpose since the frequency is continuously measured Draw a Circuit Diagram with Pico 4 39 Function of the Frequency Counter 1 Counter input or 14 2 Upper Setpoint 3 Enable coil CC 4 Reset coil RC 5 Contact make contact upper setpoint value reached tg Gate time for the frequency measurement e Range A The counter is enabled Contact C15 C16 switches after a frequency above the setpoint was measured for the first time e Range If the actual value falls below the setpoint the contact is reset The removal of the enable signal resets the actual value to zero 4 1 e Range The counter is enabled After a frequency above the setpoint was measured for the first time contact C15 C16 switches 5 e Range D The reset coil resets the actual value to zero High Speed Counter You can use the high speed counters to count high frequency signals reliably Pico provides two high speed up down counters C13 and C14 for use as required The high speed counter inputs are permanently connected to the digital inputs I1 and I2 These counter relays allow you to count events independently of the cycle time The high speed counters allow you to enter an upper threshold value as a comparison value The C13 and C14 high speed counters are no
108. hnical construction file e EN 50081 1 EMC Generic Emission Standard Part 1 Residential Commercial and Light Industry e EN 50082 2 EMC Generic Immunity Standard Part 2 Industrial Environment This product is intended for use in an industrial environment Low Voltage Directive This product is tested to meet Council Directive 73 23 EEC Low Voltage by applying the safety requirements of EN 50178 Electric Equipment for Power Installations Equipment Requirements and Tests For specific information required by EN 50178 see the appropriate sections in this publication as well as the Allen Bradley publication Industrial Automation Wiring and Grounding Guidelines For Noise Immunity publication 1770 4 1 This equipment is classified as open equipment and must be mounted in an enclosure during operation to provide safety protection Installation 2 3 Connect the Expansion Connect the expansion module to the controller using the connector Module as shown below See Expansion Modules on page 1 4 for information on using the modules with your Pico controller Mount the Pico Controller Install Pico in an enclosure switch cabinet or distribution board so that the power feed and terminal connections cannot be touched accidentally during operation Clip Pico onto a DIN rail or install directly onto a panel using the mounting feet Pico can be mounted either vertically or horizontally TIP When using a Pico expansion
109. ico power supply interrupted instructions and external wiring activate relay output Pico circuit diagram does not Broken wire Pico relay is faulty Explanation Retention has not been enabled Replace the Pico Remedy Enable retention in the SYSTEM menu The RETENTION menu is not displayed in the SYSTEM menu Pico is in Run mode Select Stop mode The SYSTEM menu is not displayed Pico is password protected Unlock Pico s password Pico starts only in Stop mode No circuit diagram in Pico Load an input circuit diagram Start up behavior is set to Set the start up behavior in the function Start up in the SYSTEM menu operating mode STOP LCD display showing No power supply Switch on the power supply noting Pico is faulty Press the Ok button If no menu appears replace the Pico Text displayed with too many spaces Enter text Publication 1760 UM001D EN P September 2005 10 4 Troubleshoot Your Controller Publication 1760 UM001D EN P September 2005 Description Chapter 11 DC Simulator The DC Simulator catalog number 1760 SIM can be used to simulate Pico inputs and outputs to test and troubleshoot programs The simulator contains three components input simulator board output simulator board and wall mount power supply The illustration on page 11 2 shows how to connect the simulator to Pico The input simulato
110. identally receiving a counter pulse when the power is turned back on if there was a power outage during the counting period Both M16 and C8 must retain their actual values at power outage so that the 1000 hours of operating with interruptions in the power supply can be counted I1 for example a key operated switch is used to reset the counter Publication 1760 UM001D EN P September 2005 7 16 Retention Signal diagram 1 z B I1 U Supply voltage Range A Value before power outage 107 Value after switching back on 107 Automatic Lubrication at Constant Intervals and With a Constant Quantity of Lubricant Task 3 After every 60 minutes of machine run time the bearings of the machine must be lubricated for 30 seconds Contacts and relays used Coil Function Clock pulse M15 Lubricate 01 Lubrication Valve 8 Lubrication time C8 Up counter Publication 1760 UM001D EN P September 2005 Retention 7 17 Function of the Pico circuit Circuit Diagram Parameters entered diagram T1 provides the clock pulse 65 pis S in When a time of t 0 5 seconds a n i 4 i is selected the counting period figs i amounts to 2 x t 1 s One E RGE pulse is counted every second 157797 The up counter C8 switches 3600 valve
111. il function once to a relay S R Exception The coil function can be used properly several times when using jumps to structure the circuit diagram Rules for Wiring Relay Coils Draw a Circuit Diagram with Pico 4 15 Use the output energize or flip flop function once only for each relay coil Use the latch and unlatch functions to control each relay coil the first to set it S and the second to reset it R Relays with Output Energize Function The output signal follows immediately after the input signal and the relay acts as a contactor Signal Diagram Input on on Output Instruction Type Representation in Pico Output Relay 0 01 06 depending on type Marker Relay M M1 M16 N1 N16 Text Display Relay D D1 D16 Expansion or Marker Relay 1 S8 1760 L18xxx Jumps 1 8 1760 L18xxx Publication 1760 UM001D EN P September 2005 4 16 Draw a Circuit Diagram with Pico Relays with Output Energize Negate Function The output signal is the opposite of the input signal the relay operates like a contactor with contacts that have been negated If the coil is energized when ON the coil switches its make contacts to the Signal Diagram OFF state Input on on 1 1 1 Output Instruction Type Representation in Pico Output Relay 0 101 06 depending on type Marker Relay M M1 M16 N
112. ing retentive actual values 7 2 Deletion retentive actual values 7 2 Determining counter frequency 4 34 Publication 1760 UM001D EN P September 2005 2 Index Determining the cycle time 8 3 Dimensions A 1 dimensions 1760 0W2 A 15 E Entry Contact 3 6 Error handling 10 1 Example programs 4 55 Examples Impulse relay 7 6 S R coil break contact 7 5 S R function 7 7 Timing relay on delayed 7 9 Timing relay off delayed 7 11 Timing relay single pulse 7 12 Expansion module inputs 9 1 Expansion module installation 2 3 Expansion module outputs 9 2 F Flicker effect 7 4 Function relays Counter relays 4 32 Example 4 21 Overview 4 19 Timing relays 4 26 l Impulse 7 6 Impulse relays 4 17 Increasing the input current 2 16 Input contacts 4 8 Inserting Circuit connection 3 7 installing your base unit using mounting screws 2 5 Interface 5 1 Interference 2 16 Inverting 4 9 J Jumps 4 53 L Latching 4 15 Publication 1760 UM001D EN P September 2005 Latching relays 4 18 LED 1 8 Light intensity sensors 2 20 Logic tables 4 55 Main menu Selecting 1 7 Make contact 4 4 4 9 manuals related Preface 2 Marker relays 4 14 8 2 Markers 4 14 Markers retentive 7 4 Memory card Deleting 5 4 Inserting 5 2 Menu structure 1 9 Message PROG INVALID 5 4 5 7 10 2 Messages System 10 1 Mode Changing 3 8 motor starters bulletin 509 surge suppressors 2 14 motor starters bulletin 709 surge suppressors 2 14
113. is 13 00 7 30 p m is 19 30 etc Select SET CLOCK from the main menu This opens the menu for setting the time Select SET CLOCK and press Ok Set the values for day time month and year Left and right arrows move between the parameters e Up and down arrows change the value of a parameter Press Ok to save the day and time or Esc to retain the previous setting Press Esc to leave the time setting display Publication 1760 UM001D EN P September 2005 6 10 System Settings Change Between Winter Summer Time Daylight Saving Time Activate Debounce Input Delay DEBOUNCE P ON STOP MODE RETENTION ON Publication 1760 UM001D EN P September 200 5 The clock can be toggled between winter and summer time daylight savings time using the cursor buttons 1 Select SET CLOCK from the main menu This opens the menu for setting the time SET CLOCK 2 Select menu item WINTER TIME or MEETS SUMMER TIME as required Change to Winter Time Pico displays SUMMER TIME as the next possible option if winter time is already set Otherwise select WINTER TIME and press Ok Pico sets the clock one hour back e g from 17 43 Sunday to 16 43 Sunday The display then shows SUMMER TIME Change to Summer Time Select SUMMER TIME and press Ok SET CLOCK Pico sets the clock one hour forward e g from Run 12 30 Wednesday to 13 30 Wednesday The display then show
114. ist of Times for Processing Function Relays Number 1 2 3 5 6 7 8 Timing relays in us 40 120 160 220 300 370 440 540 Counters in us 40 100 160 230 300 380 460 560 Analog value processors inus 120 180 220 260 300 360 420 500 Example Operating Hours Counter TTS T8 M16 ccs SM16 TH2l 2e 22 RM16 C8 04 Ti 2 RC8 s Delay Times for Inputs and Outputs Inside Pico 8 7 Function Number Time Duration Total in ps Basicpuse 1 go Refresh 5700 5700 Contacts and bridged contact fields 17 40 680 Coils 7 20 140 Total rungs from the first one to the last 7 70 490 one with empty ones in between Connecting lines only 2 40 180 Timing relays 1 60 Counters 1 40 Analog value function relays Total 7710 The time from an input physically energizing to the time Pico actually reads the input is called the 1 input delay time and can be set Pico QVOOOVG wv i This function is useful for example to ensure a clean input signal despite contact bounce Pico DC and Pico AC units function with different input voltages and therefore have different evaluation methods and delay times Delay Times for Pico DC Units 1760 L12BWB xx 1760 L12DWD and 1760 L18BWB EX The debounce delay time for DC signals is 20 ms Publication 1760 UM001D EN P September 2005
115. kward Your circuit diagram may not perform as you expect it to When wiring more than three contacts in series use one of 16 available marker relays M or N Do NOT do this Do this instead 1 04 3 I1 Q4 I3 M1 12 14 1 02 I2 I4 02 Draw a Circuit Diagram with Pico 4 11 Delete Connections 1 Move the cursor onto the contact field or coil field to the right of the connection that you want to delete Press Alt to switch to Connect mode 2 Press Del Pico will delete a connection Closed connections that are adjacent are retained If several circuit connections are connected to one another Pico first deletes the vertical connection If you press Del again it deletes the horizontal connection as well You cannot delete connections that Pico has created automatically 3 Close the delete operation by pressing Alt or by moving the cursor to a contact or coil field Insert and Delete a Circuit Connection The LCD display shows four of the 128 circuit connections in the display at the same time Pico automatically scrolls the display up or down to show hidden circuit connections even empty ones if you move the cursor past the top or bottom of the display A new circuit connection is added below the last connection or inserted above the cursor position 1 Position the cursor on the first contact field of a circuit connection 2 Press
116. l LE A A2 GE A Il 47 1 Il 47 1 Fl 0 Fl 0 I2 0 Y I2 47 5 Y F2 0 F2 0 OS 0 OS 0 HY 0 4 HY 40 4 Timing Diagram on Output 1 sets relay output Q1 A up to a voltage of 7 1V The hysteresis is between 7 1V and 7 5V At 7 5V A2 causes the relay to reset C Q1 drops out and does not pick up again until A1 is set at 7 1V D Tein Analog signals of sensors typically fluctuate by several millivolts For stable set and reset switching the setpoints should differ by at least 0 2V switching hysteresis ATTENTION To prevent the uncontrolled switching of the relay coils only use the Set and Reset functions with the analog comparators l Program Analog Comparators You integrate an analog comparator into your program in the form of a contact Use the parameter display to select one of six possible comparators and enter the setpoint values 1 Enter the relay contact for the analog comparator in the contact field The cursor moves to the contact number of the comparator Publication 1760 UM001D EN P September 2005 4 50 Draw a Circuit Diagram with Pico Text Display Publication 1760 UM001D EN P September 2005 2 Press Ok to switch to the parameter display The parameter set for the first comparator is displayed 3 Use the left and right arrows to move the cursor to the field greater than or equal to Use the up and down arrows to select one of the comparator re
117. lay Publication 1760 UM001D EN P September 2005 What is Retention Chapter Retention Some system and machine controllers for operating states or actual values require retentive settings What this means is that values are retained even after power to a machine or system has been turned off and are retained until the actual value is overwritten Pico Models with Data Retention Retentive values can be set with 1760 L12BWB xx and 1760 L12DWD xx via the SYSTEM menu as well as 1760 L18xxx for the following markers and function relays Retentive Markers and Function Relays It is possible to retentively store non volatile memory the actual values status of markers timing relays and up down counters The following markers and function relays can be set to have retentive actual values 1760 L12BWB xx 1760 L12DWD Marker Relays M13 M14 M15 M16 Timing Relay T8 Up Down Counter C8 1760 L18xxx Markers M13 M14 M15 M16 Text Function Relays D1 through D8 Timing Relays T7 T8 Up Down Counters C5 C6 C7 C8 The Retention setting applies to all of the relays listed above Individual markers or function relays cannot be set retentively TIP The retentive data is written to an EEPROM every time the power is turned off Data security is thereby assured for 100 000 power cycles Publication 1760 UM001D EN P September 2005 7 2 Retention Set Retention Requirement Pico must be in Sto
118. lays 17 is greater than or equal 17 is greater than or equal 17 is less than or equal to to I8 to Setpoint Setpoint Al GE A cz A Le A Il I7 I1 17 Elcny F1 0 F1 0 F1 0 I2 I8 Y I2 0 0 Y I2 0 0 Y F2 0 F2 0 F2 0 OS 0 OS 0 OS 0 HY 0 HY 0 HY 0 17 is less than or equal to B is greater than or equal l8 is less than or equal to 18 Setpoint Setpoint Al LE A Al GE A Al LE A I1 17 I1 18 I1 I8 F1 0 F1 0 F1 0 I2 I8 Y I2 0 0 Y I2 0 0 Y F2 0 F2 0 F2 0 OS 0 OS 0 OS 0 HY 0 HY 0 HY 0 Press Ok to finish or enter another setpoint value Press Esc to return to the circuit diagram display Series B Pico controllers allow you to display sixteen user defined text displays which can be edited in PicoSoft v 6 1 and higher These texts can be triggered by the actual values of function relays such as timing relays counters operating hours counters analog value comparators date time or scaled analog values The setpoints of timing relays counters operating hours counters and analog value comparators can be modified when the text is displayed The text displays are saved in the PicoSoft file or on the 1760 MM2B memory module If you need to load an existing 1760 18xxx Series A circuit diagram the available text display functions are retained The text display in Series B controllers operates in the same way as in a Series A controller Draw a Circuit Diagr
119. lian ITALIANO Portuguese PORTUGUES Dutch NEDERLANDS Swedish SVENSKA Polish POLSKI Turkish TURKCE Czech CESKY Hungarian MAGYAR Press Ok to confirm your choice or press Esc to exit the menu The unit then switches to the status display You can also change the language setting at a later date see Chapter 6 for more information If you do not set the language Pico displays this menu and waits for you to select a language every time the unit is powered up ENGLISH DEUTSCH FRANCAIS ESPANOL Y ITALIANO PORTUGUES NEDERLANDS SVENSKA POLSKI TURKCE CESKY MAGYAR Commission the Pico 3 3 Modes of Operation Pico has two operating modes Run and Stop In Run mode the unit continuously processes a stored program or circuit diagram until you select Stop or disconnect the power The circuit diagram parameters and settings are retained in the event of a power failure If the back up time has elapsed after a power failure you will need to reset the real time clock Circuit diagram entry is only possible in Stop mode ATTENTION In Run mode Pico immediately runs the circuit diagram saved in the unit when the incoming power is turned on This happens unless Stop mode was set as start up mode In Run mode outputs are activated according to the program In models with an LCD display a circuit diagram inside an installed memory module is not run automatically The circuit diagram mus
120. lue at the current cursor position If you press Esc in Enter mode Pico will undo the most recent changes Press Alt to switch to Connect mode for wiring contacts and relays Press Alt again to return to Move Press Esc to leave the circuit diagram and parameter display Pico performs many of these cursor movements automatically For example Pico switches the cursor to Move mode if no further entries or connections are possible at the selected cursor position Opening the Parameter Display If you specify the contact of a relay type in Enter mode Pico automatically switches from the contact number to the parameter display when you press Ok Press the right arrow to switch to the next contact or coil field without entering any parameters Publication 1760 UM001D EN P September 2005 4 4 Draw a Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 Contacts Contacts are used to modify the flow of current in the circuit diagram Contacts in the circuit diagram are either make or break contacts Make contacts are open when off de energized and closed when on Break contacts are closed when off and open when on Usable Contacts Contact Make contact Open when off I Pico Representation y T 0 m D 5 Break contact Closed when off I G mV C P D 5 Be Z Pico works with different contacts which can be used in any order in the contact
121. mediately to show the state of the inputs and outputs It also indicates whether Pico is already running a program Press Ok to switch to the main menu If there is an expansion module installed the expansion module status screen is displayed Press Ok again to switch to the main menu You can then press Ok to move forward to the next menu level or Esc to go back one level Ok has two other functions e Press Ok to save modified settings Press Ok to insert and modify contacts and relay coils In this case Pico must be in Stop mode Press Ok two times 3 times with an expansion module installed to enter the circuit diagram display from the status display s This is where you create the circuit diagram Circuit Diagram Display The circuit diagram display is currently empty The cursor is flashing at the top left which is where you start to create your program Move the cursor using the cursor buttons across the hidden grid lines The first three double columns are contact fields and the right hand triple column forms the coil field Each line is a circuit connection Pico adds the first contact automatically Now try to program the following Pico circuit diagram Switches S1 and 2 are wired to inputs I1 and I2 Relay K1 is represented by the relay coil Q1 The symbol identifies the coil s function in this case a relay coil acting as a contactor Q1 is one of up to six Pico output relays Publication 1760 UM00
122. module connect the expansion module and Pico controller together before mounting See Connect the Expansion Module Publication 1760 UM001D EN P September 2005 g 2 4 Installation Minimum Spacing Maintain spacing from enclosure walls wireways adjacent equipment etc Allow 3 cm 1 18 in of space on all sides for adequate ventilation as shown 3 1 18 in g d d d gt E o m 3 1 18 in DIN Rail Mount 1 Mount your DIN rail Make sure that the placement of the Pico unit on the DIN rail meets the recommended spacing requirements 2 Hook the top slot over the DIN rail 3 While pressing the Pico unit down against the top of the rail snap the bottom of the unit into position Ensure DIN latches are in the up secured position Pico can be mounted vertically on a DIN rail in the same manner Publication 1760 UM001D EN P September 2005 Installation 2 5 Install on a Mounting Plate To install the unit using mounting screws 1 Snap the mounting feet in place 2 Drill holes at the mounting feet positions shown below 3 Mount the controller Click 1760 L18xxx 1760 L20xxx and 1760 0W2 1760 L12xxx Expansion Modules M PL VU l 1 lJ For mounting dimensions see Dimensions on page A 14
123. n overload or short circuit After a cooling period a faulted output re energizes in an attempt to operate the output load If the fault condition still exists the output will overheat and switch off again This process is repeated until the overload is removed or until power is turned off You can use internal inputs R15 and R16 to monitor for short circuits or overloads on an output Each of the bits R15 and R16 monitors a group of four outputs e R15 Group fault signal for outputs 5 to S8 e R16 Group fault signal for outputs S1 to S4 The bit is active 1 when one or more of the outputs in the group has been faulted An overload fault is indicated as follows If the Status is Then R15 R16 0 0 No overload 0 1 At least one output has a fault in Group S1 to 54 1 0 At least one output has a fault in Group S5 to S8 1 1 At least one output has a fault in each Group Monitor these bits R15 and R16 in your logic program to be sure that system or machine operations are handled in an orderly manner in the event of an output fault Use of Expansion Modules 9 5 Module Status Example Power can be applied to the expansion unit later than it is applied to the Pico controller This means that Pico is switched to Run with the expansion module missing The Pico circuit diagram below detects whether the expansion unit is operational or not 14 1 8 SM1 114 8
124. nction Number Time Duration Total in ps Basic pulse 1 210 Refresh 1 3500 Contacts and bridged contact fields 20 Coils 20 Total rungs from the first one to the last 50 one with empty ones in between Connecting lines only H E 20 E Timing relays Counters Analog value function relays Total List of Times for Processing Function Relays Number 1 2 3 4 5 6 7 8 Timing relays in us 20 40 80 120 160 200 240 280 Counters in us 20 50 90 130 170 210 260 310 Analog value processors in us 80 100 120 140 160 180 220 260 Publication 1760 UM001D EN P September 2005 8 4 Inside Pico Publication 1760 UM001D EN P September 2005 Example Parallel Circuit Calculate the maximum cycle time for the following circuit diagram Function Number Time Duration Total in ps Basic pulse 1 210 210 Refresh 1 3500 3500 Contacts and bridged contact fields 4 20 80 Coils 1 20 20 Total rungs from the first one to the last 2 50 100 one with empty ones in between Connecting lines only 20 Timing relays Counters Analog value function relays Total 3910 Example Circuit with Branches 1 TTL T1 Q1 T1 TT2 T2 Q2 Function Number Time Duration Total in ps Basic pulse 1 210 210 Refresh 1 3500 3500 Contacts and bridged conta
125. nd released Pressing the push button a second time turns off the lights If the lights are not turned off manually the Pico program turns them off after 6 minutes If the push button is held for more than 2 seconds the lights stay on continuously until someone presses the push button again The enhanced version of this program turns the lights off again after 4 hours if the push button was held for more than 2 seconds rather than leaving them on indefinitely Publication 1760 UM001D EN P September 2005 4 64 Drawa Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 Activation Effect on Lighting Button pressed briefly Light ON or OFF Lights turn off automatically after 6 minutes Button pressed for more than 2 Continuous lighting seconds Definition of the contacts and relays used Item Function n Button ON OFF 01 Output Relay for light ON OFF M1 Marker relay This is used to block the switch off automatically after 6 minutes function for continuous lighting T2 Scan to determine how long the button was pressed If pressed longer than 2 seconds switch on continuous lighting X on delayed value 2 seconds T3 Turn lights off after the light has been switched on for 6 minutes T4 Turn lights off after 4 hours continuous lighting X on delayed value 4 00 hours The Pico circuit diagram for the The enhanced Pico circuit diagram functions described ab
126. nge from off to on the rising edge This allows the shift register to only shift once regardless of how long I1 remains true When I1 is switched on for the first time marker relay contact M7 is off and the break contact is closed during the first pass through the program Thus the series circuit consisting of I1 break contact M7 closed and M8 is turned on Although M7 is switched on this does not yet affect contact M7 The contact of M8 make contact was still open during the first scan so a shift pulse is not yet generated When the relay coil M8 is activated Pico transfers the result to the contacts In the second scan break contact M7 opens The series circuit is now open The contact M8 is switched on from the result of the first scan Now all the storage positions are either set or reset in accordance with the series circuit Publication 1760 UM001D EN P September 2005 4 62 Draw a Circuit Diagram with Pico 00 50 TRG me RES T1 Publication 1760 UM001D EN P September 2005 If the relay coils were activated Pico transfers the result to the contacts M8 is now open once more No new pulse can be generated until I1 is opened since M7 is open for as long as I1 is closed This is known as a One shot pulse How does the value reach the shift register When shift pulse M8 on the state of I2 value is transferred to storage position M1 If I2
127. ngs for T1 are e Timing function on delayed x e Time value and range 10 seconds If I1 is switched on the trigger coil TRG of T1 is energized After 10 seconds T1 turns on the output relay Q1 If I1 is switched off relay coils T1 and Q1 drop out and the timer is reset Logic Table n Ti 01 0 0 0 1 0 0 1 1 1 Count Up Counter The count up counter keeps track of a given number of events Once its preset number of counts is reached the counter energizes an output This can be used for keeping track of reject parts Once the reject parts bin contains 20 parts the bin is emptied by energizing an output The counter is reset by a second input Each time I1 is energized counter C1 adds one to its counter I1 must be de energized before C1 recognizes another count When I1 has been energized 20 times C1 turns on output Q1 When input I2 is energized the C1 counter is reset by using the reset instruction RC1 Publication 1760 UM001D EN P September 2005 4 60 Draw a Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 4x Shift Register You can use a shift register for storing an item of information e g sorting parts into good and bad two three or four transport steps further on A shift pulse and the value 0 or 1 to be shifted are needed for the shift register The shift register s Reset input is used to clear any values that are no longer needed The values in the shift
128. no circuit diagram Circuit diagram on the memory module uses contacts relays that Pico does not recognize e Do not use NC versions for time switch functions e Analog inputs only with DC controllers Change the version of Pico or change the circuit diagram in the memory module Current flow display does not show modifications to the circuit connections Pico is in Stop mode Select Run mode Operation connection not performed Relay does not activate coil Incorrect parameter values time e Analog value comparison is incorrect e Time value of timing relay is incorrect e Function of timing relay is incorrect Check the circuit diagram and parameter sets and modify as required Relay Q or M does not pick up Relay coil has been wired up several times Check coil field entries Input not detected Publication 1760 UM001D EN P September 2005 Loose terminal contact No voltage to switch button Broken wire Check installation instructions and external wiring Pico input is faulty Replace the Pico Event Possible Situations When Creating Circuit Diagrams Relay output Q does not switch and activate the load Event The actual values are not being stored retentively Troubleshoot Your Controller 10 3 Explanation Pico in Stop mode Remedy Select Run mode No voltage at relay contact Check installation P
129. no display model 1760 L1xxxx ND can be loaded with a program automatically from the memory module every time it is powered up Simply insert a memory module into the interface of a 1760 L1xxxx ND and apply power to the controller Pico automatically reads the program from the memory module and goes into the RUN mode If the program in the memory module is not valid the program already in the Pico unit is retained To transfer a program 1 Switch to Stop mode PROGRAM 2 Select PROGRAM from the main menu DELETE PROG CARD 3 Select the CARD menu option The CARD menu option only appears if you have inserted a functional memory module DENA SAL CARD DEVICE You can transfer a program from Pico to the DELETE CARD module from the memory module to Pico or you can delete the content of the memory module 17 the power fails during communication with the memory module repeat the last procedure since Pico may not have transferred or deleted all the data After completing the operation remove the memory module and close the cover Publication 1760 UM001D EN P September 2005 5 4 and Load Circuit Diagrams Publication 1760 UM001D EN P September 2005 Store a Circuit Diagram to the Memory Module 1 Select DEVICE gt CARD 2 Confirm the prompt by pressing Ok This deletes the contents of the memory module and replaces it with the program in Pico REPLAC
130. ns Change Make Contacts into Break Contacts Every relay contact in the circuit diagram can be defined as either a make or break contact 1 Move the cursor over the contact and press Enter to change to the enter mode 2 Press Alt The make contact changes to a break contact 3 Press Ok twice to confirm the change Publication 1760 UM001D EN P September 2005 4 10 Draw a Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 Create and Modify Connections Relay contacts and relay coils are connected in Connect mode using the diagonal wiring arrow available in this mode Use the arrow buttons to move the cursor onto the contact field or coil field from which you wish to create a connection Do not position the cursor on the first contact field At this position the Alt button has a different function Insert circuit connection 1 Press Alt to switch to Connect mode A 2 Use the left and right arrows to move the diagonal arrow between the contact fields and coil fields and the up and down arrows to move between circuit connections 23 Press Alt to leave Connect mode Pico leaves Connect mode automatically when you move the diagonal arrow onto a contact field or coil field which is already assigned In a circuit connection Pico automatically connects relay contacts and the terminal to the relay coil if there are no empty fields in between Tahiti Never work bac
131. nsert a new empty circuit connection rung e Press Alt to set the contact currently under the cursor to either a make or break contact The wiring arrow works between contacts and relays When you move the arrow onto a contact or relay coil it changes back to the cursor and can be reactivated with Alt if required Pico automatically wires adjacent contacts in a circuit connection up to the coil 1 Press Alt to wire the cursor from I2 through to the coil field The cursor changes into a flashing wiring arrow and automatically jumps to the next possible wiring position 2 Press the right cursor button Contact I2 is connected up to the coil field Use the Del button to delete wiring at the cursor or arrow position Where connections intersect the vertical connections are deleted first then if you press Del again the horizontal connections are deleted 3 Press the right cursor button again The cursor will move to the coil field 4 Press Ok Pico inserts relay coil Q1 The specified coil function and the output relay Q1 are correct and do not have to be changed Your first working Pico circuit diagram now a E looks like this 5 Press Ok Then press Esc to leave the circuit diagram display The diagram will be automatically saved I1 I2 Q1 Once you have connected buttons 1 and 2 you can test your circuit diagram Publication 1760 UM001D EN P September 2005 3 8 Commission
132. o 264V ac 79 to 264V ac Rated frequency 50 60 Hz 50 60 Hz Input current 0 5 mA at 230V ac 50 Hz 0 5 mA at 230V ac 50 Hz R1 to R12 11 to 16 0 25 mA at 115V ac 60 0 25 mA at 115V ac 1760 L18AWA xx also 19 to 112 Hz 60 Hz Input current 6 mA at 230V ac 50 Hz 6 mA at 230V ac 50 Hz 17 18 AmA at 115Vac60Hz 4mA at 115V ac 60 Hz Delay time 11 16 and 19 to 112 From 0 to 1 and from 1 to 0 Debounce ON 80 ms 50 Hz 66 66 ms 80 ms 50 Hz 66 66 ms 60 Hz 60 Hz Debounce OFF 20 ms 50 Hz 16 66 ms 20 ms 50 Hz 16 66 ms 60 Hz 60 Hz Delay time 17 18 from 1 to 0 Debounce ON 160 ms 50 Hz 80 ms 50 Hz 150 ms 60 Hz 66 66 ms 60 Hz Debounce OFF 100 ms 50 Hz 60 Hz 20 ms 50 Hz 16 66 ms 60 Hz Delay time 17 I8 from 0 to 1 Debounce ON 80 ms 50 Hz 66 66 ms 60 Hz Debounce OFF 20 ms 50 Hz 16 66 ms 60 Hz Max permissible cable length per input R1 to R12 11 to 16 and 19 to 40m 131 ft 112 17 18 100m 328 ft 1 Delay times for expansion modules are circuit delays only Additional time is needed to transfer the status to the controller See Table on page 9 2 Specification Digital Inputs DC Models 1760 L12DWD 1760 L12DWD ND 1760 L18DWD EX 1760 L18DWD EXND 1760 L12BBB 1760 L12BBB ND 1760 L12BWB 1760 L12BWB NC 1760 L12BWB ND Specifications 7 1760 L18BWB EX 1760 L18BWB EXND 1760 L20BBB EX 1760 L20BBB EXND 17
133. o the control voltage in order to turn off the machine This ensures that the machine will be turned off even in the event of a wire break A self latching circuit with wire break monitoring can alternatively be wired using the Set and Reset coil functions Relay Q1 is latched when I1 is turned on I2 inverts the break contact signal from S2 and does not switch until 2 is actuated In this way the machine is switched off if a wire breaks Make sure that both coils are wired up in the correct order in the Pico circuit diagram first wire the S coil and then the R coil This means that the machine will be switched off when I2 is actuated even if I1 is switched on Flip Flop Relay A flip flop relay is often used for controlling lighting such as for staircase lighting Press the push button wired to I1 once and the lights turn on Press the push button again and the lights turn off I1 O01 I1 2 2 TTL qTl 2 Q1 X s 110 00 rRG 1 RES I1 cci 1 Ql I2 RC1 0020 DIR 1 RES Draw a Circuit Diagram with Pico 4 59 Logic Table n State 01 01 0 0 0 0 to 1 0 1 0 1 1 0 to 1 1 0 On Delay Timing Relay The on delay can be used to gate short pulses or to initiate another movement after a time delay when a machine is started The parameter setti
134. omatic running light can be created by slightly modifying the shift register circuit One output is always switched on It starts at Q1 runs through to Q4 and then starts again at Q1 The marker relays for storage positions M1 to M are replaced by relays Q1 to Q4 The shift pulse I1 has been automated by the flasher relay T1 The cycle pulse M8 remains as it is Draw a Circuit Diagram with Pico 4 63 On the first pass the value is switched on once by break contact M9 If Q1 is set M9 is switched on Each output is turned on and off in sequential order i e Q1 Q2 Q3 Q4 Pico changes state every second Once Q4 the last storage position has been switched on the value is passed back to Q1 EE 1 Flasher Relay T1 M7 M8 Generate shift pulse 7 1 smg Clear first value M8 Q3 SQA Set 4th storage position specs RO4 Clear 4th storage position jacet SQ3 Set 3rd storage position 03 Clear 3rd storage position Q1 502 Set 2nd storage position RQ2 Clear 2nd storage position L Q45 SQ1 Set 1st storage position FN Enter first value 21 Q1 RQ1 Clear 1st storage position Stairwell Lighting To save electricity building maintenance wishes to keep the lights in a stairwell turned off unless someone is using the stairwell The following program turns on the lights in the stairwell when a push button switch is pressed a
135. ons p Ambient climatic conditions Specification Value Standard Operating 25 C to 55 C 13 F to 131 F Temperature Storage transport 40 C to 70 C 40 F to 158 F temperature Operating humidity 5 to 95 non condensing IEC 60068 2 30 Air pressure 795 to 1080 hPa 0 795 to 1 08 Bar operation Corrosion resistance 0 10 cm3 m 4 days 60068 2 42 Publication 1760 UM001D EN P September 2005 g A 2 Specifications Electrical Specifications Publication 1760 UMOO01D EN P September 2005 Ambient mechanical conditions Specification Value Standard Pollution degree 2 Protection class IP 20 EN 50178 IEC 60529 VBG4 Vibration 10 to 57 Hz IEC 60068 2 6 constant amplitude 0 15 mm 57 to 150 Hz constant acceleration 2G Shock 18 shocks IEC 60068 2 27 semi sinusoidal 15G 11 ms Drop 50 mm 1 97 in IEC 60068 2 31 Drop packaged 1m 39 4 in IEC 60068 2 32 Electromagnetic compatibility EMC Electrostatic discharge 8 KV air discharge IEC EN 61000 4 2 6 KV contact discharge severity level 3 Electromagnetic fields Field strength 10 V m IEC EN 61000 4 3 Emitted interference Class B EN 55011 EN 55022 interference immunity Fast Transient Burst 2 KV power supply IEC EN 61000 4 4 2 KV signal cables severity level 3 High energy pulses surge 2 KV power cable IEC EN 61000 4 5 Pico 1760 LxxAWA symmetri
136. ontact your local distributor or Rockwell Automation representative or visit http support rockwellautomation com Installation Assistance If you experience a problem with a hardware module within the first 24 hours of installation please review the information that s contained in this manual You can also contact a special Customer Support number for initial help in getting your module up and running United States 1 440 646 3223 Monday Friday 5pm EST Outside United Please contact your local Rockwell Automation representative for any States technical support issues New Product Satisfaction Return Rockwell tests all of our products to ensure that they are fully operational when shipped from the manufacturing facility However if your product is not functioning and needs to be returned United States Contact your distributor You must provide a Customer Support case number see phone number above to obtain one to your distributor in order to complete the return process Outside United Please contact your local Rockwell Automation representative for States return procedure Power Control and Information Solutions Headquarters Americas Rockwell Automation 1201 South Second Street Milwaukee WI 53204 2496 USA Tel 1 414 382 2000 Fax 1 414 382 4444 Europe Middle East Africa Rockwell Automation Vorstlaan Boulevard du Souverain 36 1170 Brussels Belgium Tel 32 2 663 0600 Fax 32 2 663 0640
137. ove after four hours the continuous looks like this lighting is also switched off Fee TT2 1 TT2 T2 SM1 T2 SM1 iia Ol Ple Q1 T3 22 T3 Q1 M1 TT3 5 T4 Olea SoS RM1 2 Q1rM1 TT3 a Q1 RM1 If you use Pico with a time switch you can define both the stairwell lighting and the continuous lighting periods via the real time clock If you use Pico with analog inputs you can optimize the stairwell lighting via a brightness sensor to suit the lighting conditions Interface to Memory Module and Programming Cable Chapter 5 Save and Load Circuit Diagrams The Pico controller has a covered interface You can either use the Pico interface to save programs to a memory module or use PicoSoft programming software and the interface cable to transfer them to a A Pico controller without a display 1760 L1xxxx ND be loaded with a program via PicoSoft or automatically from a memory module every time power is applied ELECTRICAL SHOCK HAZARD The memory module and PC cable socket are at the A potential of L2 There is a danger of electric shock if L2 is not grounded Do not make contact with electrical components under the socket cover Use a screwdriver to carefully remove the interface cover To close the interface push the cover back onto the opening and snap it into place Publication 1760 UM001D EN P September 2005 5 2 Save and Load
138. p mode Switch to the System menu If Pico is protected by a password the System menu is not available until Pico is unlocked see Unlock Pico on page 6 4 Enable the Retention function see figure on previous page The menu item RETENTION ON OFF is a toggle menu The menu always displays the operating mode into which you can change The default setting of Pico is the display RETENTION ON With this setting Pico runs without retentive data provided a valid circuit diagram is present When Pico is in Stop mode or has been switched to a de energized state all actual values are deleted and Alt 3X PASSWORD SYSTEM gt DEBOUNCE OFF et DEBOUNCE OFF P ON GBDFEI P ON STOP MODE RUN MODE RETENTION ON RETENTION ON Retentive Menu Behavior M13 M14 M15 M16 C8 T8 D1 to D8 Behavior Displayed C5 C6 C7 T7 When the Unit is Switched Off and On Again No retentive RETENTION All actual values will be cleared when the unit changes actual values ON from Run to Stop mode or when power is turned off Retentive RETENTION All actual values will be stored when the unit changes actual values OFF from Run to Stop mode or when power is turned off Delete Retentive Actual The retentive actual values are cleared when applies only to Stop mode Values e the circuit diagram is transferred from PicoSoft PC or from the memory module to Pico the retentive actual
139. parameters such as timer and counter setpoints without having to call up the circuit diagram This is possible regardless of whether Pico is running a program or is in Stop mode 1 Press Ok to switch to the main menu 2 Start the parameter display by selecting PARAMETER A complete parameter set is shown In the example these are the parameters for a timing relay 1 The following requirements must be fulfilled for a parameter set to be displayed e A function relay must have been included in the circuit diagram The parameter set has been enabled for access indicated by the character at the bottom right of the display Use the PARAMETER menu to access and modify accessible parameter sets Parameter sets for which access is not enabled are not displayed Pico therefore allows you to protect parameters with the use of a password You can enable or disable parameter access using the parameter or characters respectively in the circuit diagram 1 Use up or down arrows to scroll through the parameter sets The cursor must be located on the identifier of the function relay in this case 2 Press Ok 3 Use up or down arrows to select the parameter required 4 Change the values for a parameter set e press Ok to enter the Entry mode e use left and right arrows to change decimal place e use up and down arrows change the value of a decimal place Ok Save parameter or Esc Retain previous setting 5 Press
140. put terminals function as isolated contacts as shown below Q1 Outputs are controlled via the corresponding output relays e Q1 to Q4 e Q1 to Q8 e S1 to S6 e 51 to S8 You can use the signal states of the output relays as make or break contacts in the Pico program to provide additional logic conditions The relay or transistor outputs are used to switch loads such as fluorescent tubes filament bulbs contactors relays or motors Check the technical thresholds and output data before installing such devices see Relay Outputs on page A 10 Connect Relay Outputs 1760 L12AWA xx 1760 L12BWB xx and 1760 L12DWD Publication 1760 UM001D EN P b Le Lf 2 01 F of 03 dd 24 a Y 10 000 000 120V 8A 2A 20V 2A DA 1000 w oV N LJ B A 10x58W 25000 eases ta 11 12 3 120 240y 1 24V September 2005 1760 L18AWA xx and 1760 L18BWB EX y s 10 000 000 00 svn L1 02 13 120 240 24 V 1760 IA12XOW6I aie T 52 10 000 000 OVa sus L1 L2 13 120 2401 24 V 1760 0W2 OV 5 16 LLB 13 115 230 e ua 24 V 8A 2A 120V 8A 2 240V 8A 2 D PA Installation 2 23 R 5
141. puts Outputs Line Power 1760 IA12XOWE6I 12 100 to 240V ac 6 relay 100 to 240V ac 1760 IA12XOW4I 12 100 to 240V ac 4 relay 100 to 240V ac 1760 IB12X0W6l 12 24V dc 6 relay 24V dc 1760 1B12X0B8 12 24V dc 8 transistor 24V dc 1760 0W2 2 relay 24V dc System Overview 1 5 Expansion modules connect directly to the Pico controller as shown below Expansion Module Connector replacement part 1760 RPLCONN Pico Controller Expansion Module 1760 L18AWA EX 1760 IA12X0W6l 1760 L18BWB EX 1760 1B12X0B8 1760 L18AWA EXND 1760 IA12XOWAIF 1760 L18BWB EXND 1760 1B12XO0W6l 1760 L18DWD EX 1760 0W2 1760 L20BBB EX 1 Included with expansion module Catalog 1760 L20BBB EXND Number is listed as a replacement part ATTENTION Electrical isolation is provided between the Pico controller and the expansion module as follows A e Basic Isolation 400V ac 410 e Reinforced Isolation 240V ac 410909 The controller and expansion units may be destroyed if the potential between them exceeds the Basic Isolation value provided This may cause your entire system or machine to malfunction 1 Basic Insulation An insulation system which provides a minimal level of protection against electric shock up to a stated voltage level Refer to EN 61131 2 for additional information 2 Reinforced Insulation An insulation system comprised of basic and supplemental insulation This provides protection ag
142. r 1760 SIM Programming Software 1760 PICOSOFT Programming Cable 1760 02 1 Included with expansion module Catalog Number is listed as a replacement part 1760 MM2B Publication 1760 UM001D EN P September 2005 g Summary of Changes 2 New Information Publication 1760 UM001D EN P September 2005 The table below lists sections where new information has been added For This New Information See Changed Catalog Number 1760 L12NWA and 1760 L18NWA to Throughout 1760 L12NWN and 1760 L18NWN manual Changed inputs to 24V ac page A 5 Preface System Overview Installation Commission the Pico Draw a Circuit Diagram with Pico Table of Contents Who Should Use this Preface 1 Purpose of this 1 Preface 1 Common Techniques Used in this Manual Preface 2 Rockwell Automation Preface 3 Chapter 1 OVEVI EW PARURE 1 1 Hardware VersiOnSzo mio sa Sed YU tee ig RT 1 2 Operating 1 1 6 Chapter 2 Prevent Electrical Shock 2 1 European Communities EC Directive Compliance 2 2 Connect the Expansion Module adr 2 3 Mount the Pico GCohlbrollet 4 athe peewee 2 3 Install the Remote 2 6 Wire TOES ooa err tare ed eom pd ed arm Oe 2
143. r Jumps Numbers 1108 Coils Numbers 1108 Coil function Function If the jump coil is triggered the circuit connections coming directly after it are not processed The states of the coils before the jump are retained unless they are overwritten in circuit connections that were not missed by the jump Jumps are always made going forward i e the jump ends on the first contact with the same number as that of the coil Coil jump when 1 e Contact only at the first leftmost contact Jump destination The Jump contact point is always set to 1 Backward jumps are not possible with Pico If the jump label does not come after the jump coil the jump is made to the end of the circuit diagram The last circuit connection is also skipped If a jump destination is not preset the jump is made to the end of the circuit diagram Multiple use of the same jump coil and jump contact is possible as long as this is implemented in pairs for example Coil 1 jumped range Contact 1 Coil 1 jumped range Contact 1 etc TIP The states of jumped circuit connections are retained The time value of timing relays that have been started will continue to run Publication 1760 UM001D EN P September 2005 4 54 Draw a Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 Power Flow Display Jumped ranges are indicated by the coils in the power flow display All coils after the jump coil are shown with
144. r board contains 8 maintained push buttons connected to the 8 inputs of Pico as well as 2 potentiometers connected to Inputs 7 and 8 The push buttons simulate digital input devices such as limit switches proximity sensors and photoswitches The potentiometers can be used to simulate analog input devices such as temperature and pressure transducers The output board contains four LEDs that simulate output devices such as relays motor starters or solenoids ATTENTION The DC simulator can only be used with e 1760 L12BWB e 1760 L12BWB NC e 1760 L12BWB ND 1760 L12BBB e 1760 L12BBB ND Use only the power supply provided Publication 1760 UM001D EN P September 2005 11 2 DC Simulator Installation Guidelines ATTENTION Be sure that power is not applied when installing the input and output simulator boards Follow the installation procedure below Installation Procedure 1 2 Connect inputs Connect outputs Plug in the connection cable Connect the power supply Plug in the power supply unit Connection Cable Inp Digital 7 and l8 uts Analog Inputs f fis 15 r7 i2 14 16 18 JUUUUUU QYOYYYYYOYO 1760 L12BWB xx ZA 4 V SS 55 995 99 01 LL LAM 1 Q2 Q4 Outp
145. recognize the consequence Labels may be located on or inside the equipment drive or motor to alert people that dangerous voltage may be present PUEDE Labels may be located on or inside the equipment e g drive or motor to alert people that surfaces may be dangerous temperatures Summary of Changes Catalog Number Release History The information below summarizes the changes to this manual since the last printing as publication 1760 UMOO1C EN P April 2005 To help you locate new and updated information in this release of the manual we have included change bars as shown to the right of this paragraph The following table shows the history of Pico catalog numbers Description Released June 2000 Release August 2001 Release March 2005 120 240V ac Pico 1760 L12AWA 1760 L18AWA EX 1760 L18AWA EXND 1760 L12AWA NC 1760 L12AWA ND 1760 L18AWA 24V dc Pico 1760 L12BWB 1760 L12BWB ND 1760 L12BBB 1760 L12BWB NC 1760 L18BWB EX 1760 L12BBB ND 1760 L18BWB EXND 1760 L18DWD EX 1760 L20BBB EX 1760 L20BBB EXND 12V dc Pico 1760 L12DWD 1760 L18DWD EXND 1760 L12DWD ND 24V ac Pico 1760 L12NWN 1760 L12NWN ND 1760 L18NWN EX 1760 L18NWN EXND Expansion Modules 1760 IA12XOW6I 1760 IA12X0WAI 1760 IB12X0B8 1760 IB12XOW6l Expansion Module Connector 1760 RPLCONN Memory Modules 1760 MM1 1760 MM2 Input Output Simulato
146. register pass through the register in the following order 1st 2nd 3rd 4th storage position Block diagram for the 4x shift register Value Reset 1234 Function Pulse Value Storage Location 1 2 3 4 1 1 1 0 0 0 2 0 0 1 0 0 3 0 0 0 1 0 4 1 1 0 0 1 5 0 1 0 Reset 1 0 0 0 0 Assign the meaning bad part to the value 0 This ensures that no bad parts will be reused if the shift register is accidentally deleted Item Function n Shift pulse PULSE 12 Information good bad to be shifted VALUE 13 Delete content of the shift register RESET 1 First storage position Draw a Circuit Diagram with Pico 4 61 Item Function M2 Second storage position M3 Third storage position M4 Fourth storage position 7 Marker relay for one shot pulse 8 One shot pulse used for shift pulse t1 m7 rus Generate shift pulse on M8prM3 SMA Set 4th storage position M RMA Clear 4th storage position SM3 Set 3rd storage position RM3 Clear 3rd storage position SM2 Set 2nd storage position RM2 Clear 2nd storage position SM1 Set 1st storage position RM1 Clear 1st storage position I3 r RM1 Clear all storage position RM2 RM3 RMA How Does the Shift Register Work The shift pulse is switched on for exactly one cycle To do this the shift pulse is generated by evaluating the cha
147. resistance of less than or equal to 1K Q e g 1K Q 0 25W Light Intensity Sensors V dc ov 12V F1 0 to 10V 7 12 0 V dc Inputs x V dc 17 18 0 to 10V V dc 12Vdc for 1760 L12DWD V dc 24V dc for 1760 LxxBWB xx Installation 2 21 Temperature Sensors dc 12V de or 24V dc OV OV e Ql Out F 0 to 10V 35 to 55 C 31 to 131 F Vde COM 2 00000000000 M V dc Inputs x V dc 17 18 0 to 10V V dc 12Vdc for 1760 L12DWD V dc 24V dc for 1760 LxxBWB xx 20 mA Sensors V dc 4 e OV bd 1 1A 41020 mA Y 5000 Vdc COM _ V de Inputs x V 17 18 0 to 10V V dc 12Vdc for 1760 L12DWD V dc 24V dc for 1760 LxxBWB xx Connect 4 to 20 mA 0 to 20 mA sensors using an external 500Q resistor as shown above The resultant impedance to the sensor is approximately 478 The following values result Based on V Rx I 478Q x 10 mA 4 8V do e mA 1 9V dc e 10 mA 4 8V dc e 20 mA 9 5V dc Publication 1760 UM001D EN P September 2005 g 2 22 Installation Connect Outputs The Q out
148. rface to Memory Module and Programming Cable 5 1 Memory Module sareren de ege d eR NER POETE RES 5 2 t ada etes mur te ep tu E a eU c Arii 5 5 Chapter 6 Password ProtectiOtlaus ac or erm oe AA Re Pa 6 1 Change the Menu Language 6 6 Change 5 6 7 Set Date Time and Daylight Saving Time 6 9 Change Between Winter Summer Time Daylight Saving 6 10 Activate Debounce Input 6 10 Activate and Deactivate P Buttons 6 11 St r Up ar ca qu repe Bd eS ee e 6 12 Set Cyce TIME si Rang dio sex cee dro t sita 6 14 Gite Otoko 6 15 Display Device 6 17 Chapter 7 What is 7 1 oet Retention does eb ee ee RG US ee 7 2 Delete Retentive Actual Values 7 2 Transfer Retentive 7 3 Retentive Auxiliary Relays Markers 7 4 Retentive Timing Relays 7 8 Retentive Up Down Counters C7 and 7 14 Chapter 8 Circuit Diagram 8 1 Determine Cycle Time of Circuit Diagrams 8 3 Delay Times for Inputs and Outputs 8 7 Chapter 9 OVeIVIeW
149. rton When the carton is full the carton is removed manually and the counter is reset Contacts and relays used Circuit Diagram Parameters entered n I5 ccs Coil Function 0042 0036 8 Q1 4 DIR 15 Count parts D TERN RCG nen a l6 Reset counter RES 01 Carton Full signal lamp C8 Up counter Signal diagram 2 U Supply voltage Retention 7 15 Operating Hours Counter for Maintenance Intervals Task 2 Every 1000 hours the system or machine must undergo preventive maintenance Filters and transmission oil must be changed and the bearings must be lubricated Contacts and relays used Circuit Diagram Parameters entered ai TIS 18 38 es ccs 5 30 00 SM16 TRG T8 jj RE RM16 E ALPES li Coil Function Oc 04 T8 Clock pulse EODD EODD Time p M16 Block double pulse RTS t Eces 04 Warning light 1000 h reached RES C8 Up counter n Reset Function of the Pico circuit diagram T8 provides the clock pulse When a time of t 30 minutes is selected the counting period amounts to 2 x t 60 min Every hour one pulse is counted The up counter C8 triggers a warning light at 1000 by means of Q4 For the clock pulse to be correct when there is a power outage T8 must be retentive M16 prevents C8 from acc
150. s The changeover of a relay coil does not change the switching state of an associated contact until the next cycle starts e Always wire forward or from top to bottom Never work backward Example Switch One Cycle Later This is the circuit diagram of a self latching Circuit Diagram circuit If I1 and I2 are closed the switching state RE fot of relay coil Q1 is held via contact Q1 al 1st cycle I1 and 12 are switched on Relay Q1 picks up Start Condition I1 12 switched on Relay contact Q1 remains off since Pico evaluates Q1 switched off from left to right 2nd cycle The self latching function now becomes active Pico has transferred the coil states to contact Q1 at the end of the first cycle Example Do Not Wire Backward This example is shown in Create and Modify 11 04 13 boe qs Connections on page 4 10 It was used to illustrate how NOT to program I2 14 02 When wiring more than three contacts in series use one of the marker relays Determine Cycle Time of Circuit Diagrams Inside Pico 8 3 The maximum cycle time of a circuit diagram must be known in order to determine the maximum counter frequency or reaction time of Pico Blank Cycle Time Calculation Tables can be found on page A 13 of this manual 1760 L12xxx Cycle Time For 1760 L12xxx the cycle time can be calculated as follows Fu
151. s Change the Menu Language ENGLISH DEUTSCH FRANCAIS ESPANOL ITALIANO PORTUGUES NEDERLANDS SVENSKA POLSKI TURKCE CESKY MAGYAR Publication 1760 UM001D EN P September 2005 Pico returns to the Status display Pressing Esc retains the circuit diagram and data You can then make another four attempts to enter the password Pico Series B Controllers provide twelve menu languages These can be set as required via the System menu Language LCD display Abbreviaton English ENGLISH GB German DEUTSCH D French FRANCAIS F Spanish ESPANOL E Italian ITALIANO Portuguese PORTUGUES Dutch NEDERLANDS Swedish SVENSKA Polish POLSKI Turkish TURKCE Czech CESKY Hungarian MAGYAR Language selection is only possible if Pico is not password protected 1 Press Del and Alt to call up the System menu 2 Select language as required to modify the menu language The language selection for the first entry ENGLISH is displayed 1 Use up or down arrows to select the new menu language e g Italian ITALIANO 2 Confirm your entry with Ok Pico shows a check mark next to the new menu language 3 Press Esc to return to the status display Pico System Settings 6 7 Change Parameters Tin Ch H 03 Ge Ail EG Hi LT A Lr Tin 11 02 030 05 000 T Pico allows you to change function relay
152. s What this means is that the values will be retained safely even after the supply voltage to a machine or system has been switched off The values are also retained until the next time the actual value is overwritten The following operands and function blocks can be set to operate retentively e Markers e Counter function blocks e Data function blocks e Timing relays Set Retentive Behavior Requirement Pico must be in Stop mode 1 Switch to the System menu TTTIAETTBI Pico is protected by a password the System menu is not available until Pico is unlocked see the section Unlock Pico on page 6 4 Publication 1760 UM001D EN P September 2005 6 16 System Settings RUN MODE vA 2 CARD MODE CYCLE TIME 3 RETENTION Y 4 5 wo cas xw M13 M16 6 N 9 N16 c5 c7 Y C 8 SY 7 C13 C16 D1 D8 T 8 T 8 T13 T16 The default setting of Pico is for no retentive actual value data to be selected When Pico is in Stop mode or has been switched to a de energized state all actual values are cleared Switch to Stop mode Switch to the System menu Proceed to the SYSTEM menu and continue to the RETENTION menu Press the Ok button The next screen display is the selection of the marker range Use the up and down arrows to select a range Press Ok to select the marker the function relay or the range that is to be retentive check mark next to it Press Esc to
153. s WINTER TIME The weekday is not changed automatically with the time If you change the time around midnight you must change the weekday as well Input signals can be evaluated by Pico with a debounce delay This enables the trouble free evaluation of switches and push buttons subject to contact bounce In many applications however very short input signals have to be monitored In this case the debounce function can be turned off 1 Press Del and Alt to call up the System menu 2 Select the System menu If Pico is password protected you cannot open the System menu until you have removed the password 3 Set the Debounce mode using the menu items DEBOUNCE OFF DEBOUNCE ON Activate and Deactivate P Buttons DEBOUNCE P BUTTONS STOP MODE RETENTION ON DEBOUNCE P BUTTONS V RUN MODE RETENTION ON Pico System Settings 6 11 Deactivate Debounce Input Delay If Pico is showing DEBOUNCE in the display this means the Debounce mode is deactivated Otherwise select DEBOUNCE and press Ok If Debounce mode is deactivated the display shows DEBOUNCE with no check mark Activate Debounce Input Delay If there is a check mark next to DEBOUNCE the Debounce function has been activated If there is no check mark select DEBOUNCE and press Ok Press Esc to return to the status display See Delay Times for Inputs and Outputs on page 8 7 for information on how Pico input and output signals
154. since the first switch off time was at 4 00 pm O4 B D MO SU D MO SU ON 12400 ON 12 00 OFF 16 00 OFF 18 00 When it is powered on Pico always updates the switching state on the basis of all the available switching time settings Example 6 The time switch is to operate for 24 hours Turn on time at 0 00 on Monday and turn off time at 0 00 on Tuesday 01A O1B gt D MO D TU ON 00 00 ON OFF OFF 00 00 Program a Time Switch A time switch can be integrated into your circuit in the form of a contact Use the parameter display to set the switch on and switch off times 1 Enter the relay contact for the time switch in the contact field The cursor is over the contact number of the time switch 2 Press Ok to set the switching times The parameter set for the first channel is displayed 3 Set the switching times for the parameter set Draw a Circuit Diagram with Pico 4 47 Analog Comparators IV Analog comparators are only available with 12V dc and 24V dc models An analog value comparator or threshold value switch enables you to compare analog input values with a setpoint the actual value of another function relay or another analog input This enables you to implement small controller tasks such as two point controllers very easily The analog inputs of the 1760 L12 are 17 and I8 e The analog inputs of the 1760 L18 and 1760 L20 are I7 I8
155. sing expansion modules Input and Output Reaction Times of Expansion Modules TIP The debounce setting has no effect on expansion modules Transfer Times for Input and Output Signals Input or Output Reaction Time R1 to R12 30 ms one cycle 1 to S6 or S8 15 ms one cycle time Use of Expansion Modules 9 3 Monitor Functions of the Expansion Module Be Sure Power Supply is Present If the power supply of the expansion module is not present no connection can be established between it and the Pico controller When no power supply is present the expansion inputs R1 to R12 and R15 and R16 are incorrectly processed in the Pico controller and show status of 0 Also it cannot be assured that outputs 1 to S8 will be transferred to the expansion module ATTENTION Always monitor the expansion module to prevent switching faults in machines or systems Expansion Module Status The status of the Pico controller internal input 114 indicates the status of the expansion module as follows Expansion Module Status Pico Controller Input Status 114 0 Expansion module is functional 1421 Expansion module is not functional Publication 1760 UM001D EN P September 2005 9 4 Use of Expansion Modules Publication 1760 UM001D EN P September 2005 Monitor for Short Circuit or Overload Expansion module 1760 IB12XOB8 provides 8 transistor outputs The outputs are thermally protected and switch off in the event of a
156. t dependent on the cycle time Counter Frequency and Pulse Shape The maximum counter frequency is 1 kHz The signals must be square waves We recommend a mark to space ratio of 1 1 If this is not the case The minimum mark to space ratio is 0 5 ms 1 tmin Minimum time of the pulse or pause duration dios Lag 05x fmax maximum count frequency 1 kHz Publication 1760 UM001D EN P September 2005 4 40 Draw a Circuit Diagram with Pico IMPORTANT High speed counters operate independently of the program cycle time The results of the actual value setpoint comparison is only transferred once every program cycle for processing in the circuit diagram The reaction time in relation to the setpoint actual value comparison can therefore be up to one cycle in length Wire a High Speed Counter The following assignment of the digital inputs apply 11 High speed counter input for counter C13 e 12 High speed counter input for counter C14 IMPORTANT E ECCLE CC13 C13 SN3 I6 1 contact and coil I8 C13 RC13 If you use C13 or C14 as high speed counters you must enable them with the coil CC13 or CC14 accordingly You integrate a high speed counter into your circuit in the form of a The coils and contacts have the following meanings Contact Coil C13 to C14 The contact switches if the actual value is greater than or equal to the setpoint CC13 CC14
157. t first be transferred from the memory module to the unit In Run mode the 1760 L12xxx ND and 1760 L18xxx xxND load the circuit diagram from the memory module automatically and run it immediately Publication 1760 UM001D EN P September 2005 3 4 Commission the Pico Create a Circuit Di agram The following small circuit diagram example takes you step by step through programming your first Pico circuit diagram This example rogram demonstrates most of the basic programming rules As with conventional wiring you use contacts and relays in the Pico circuit diagram With Pico however you no longer have to connect components individually With the push of a few buttons the Pico circuit diagram produces all the wiring All you have to do is connect any switches sensors lamps or contactors you wish to use 24V dc OV dc HL L 1 51 52 In the following example Pico carries out all the wiring and performs the tasks of the circuit diagram shown above 24V oV e Fi VWOOOOOSOSOG 24V com M 12 IH Id 081 OV Publication 1760 UM001D EN P September 2005 Expansion Module Status Screen 12 RS AC P MO 10 42 ST d t 8 Commission the Pico 3 5 Start Point Status Display When you power up the unit it opens the status display im
158. t and the output is turned off A If the trigger coil drops out before the time has elapsed the contact is not turned on B The reset coil has priority over the trigger coil and always resets the timer and turns the output off C If the preset is set to zero the output follows immediately after the trigger signal Typical applications include e Switching conveyor belts on or off after a delay e Detecting gaps in the switching of sensors in the event of a fault e Automatic window shutter control with random switching times Timing Relays Off Delayed With and Without Random Switching The relay switches a contact immediately and then resets it after the setpoint delay has elapsed With random switching the relay contact switches randomly at any time up to the specified time value shown shaded in figure Timing Diagram On Trigger On C Reset Output The trigger coil switches the contact If the trigger coil A drops out the setpoint time starts and resets the contact after the time has elapsed The reset coil has priority over the trigger coil and always resets the relay contact B C If the time is set to zero the contact follows immediately after the trigger signal Typical applications include e Activating the deceleration of motors or fans e Automatic lighting control for vacant buildings with random switching times JE
159. t the same time priority is given to the coil further down in the circuit diagram This is shown in the preceding signal diagram in section B TITIO latched relay is automatically switched off if the power fails or if the device is in Stop mode Exception Retentive coils retain signal 1 see What is Retention on page 7 1 The function relays are used to simulate some of the devices used in conventional relay control systems Pico provides the following function relay types Circuit Diagram Symbol Function Relay Type 3 ing relay on delayed ing relay on delayed with random switching 3 ing relay off delayed ing relay off delayed with random switching 3 ing relay single pulse ing relay flashing 3 Counter relay up down counter D C R O Time switch weekday time only in Pico models with real time clock Analog comparator relay gt only in Pico 24V dc models Text display A function relay is started via its relay coil or by evaluating a parameter It switches the contact of the function relay according to its function and the set parameters Current actual values are erased if the power is turned off or if the unit is switched to Stop mode Exception Retentive coils retain their signal see Chapter 7 Publication 1760 UM001D EN P September 2005
160. te four additional inputs which are controlled directly by the four cursor buttons rather than via external contacts The relay contacts of P buttons are connected up in the circuit diagram Parameters Parameters enable the user to set the behavior of a function relay Examples include switching times or counter setpoints They are set in the parameter display Power supply Pico AC controllers are powered by 120 to 240V ac 50 60 Hz The terminals are labeled L1 and L2 Pico 1760 LxxBWB controllers are powered by 24V dc The terminals are labeled 24V and com 1760 LxxDWD controllers are powered by 12V dc The terminals are labeled 12V and com Retention The retentive data is kept even after the Pico power supply is switched off The following data is retentive Pico circuit diagram e Parameters setpoint values e Text displays e System settings e Password entry e Actual values of marker relays timing relays counters Glossary 3 Notes Publication 1760 UM001D EN P September 2005 Glossary 4 Publication 1760 UM001D EN P September 2005 Numerics 20 mA sensors 2 21 A Actual values 4 19 Allen Bradley contacting for assistance Preface 3 support Preface 3 AND circuit 4 56 Basic circuit Changeover circuit 4 57 Parallel connection 4 56 Permanent contact 4 55 Series connection 4 56 Break contact 4 4 4 9 Button Buttons 1 6 OK 4 3 C Cable lengths 2 16 C
161. the Pico PROGRAM r STOP RUN PARAMETER INFO Publication 1760 UM001D EN P September 2005 Test the Circuit Diagram 1 Switch to the main menu and select the RUN menu option press Esc to go back to the Main Menu and use the arrow keys to highlight RUN 2 Toggle between RUN and STOP to set the operating mode required use the Ok button to toggle between RUN and STOP Pico is in Run mode if the STOP menu option is displayed Menu options that toggle between two functions always show the next possible setting The status display shows the current mode and the switching states of the inputs and outputs 3 Change to the Status display by pressing Esc and actuate push button S1 Pico 1760 L12xxx Pico 1760 L18xxx 112345678 ee 5 MID MULT 12 50 MO 02 00 Q1234 RUN 1 RUN The boxes for inputs I1 and I2 are activated and relay Q1 is energized Power Flow Display Pico allows you to check programs in Run mode This means that you can check your circuit diagram via the built in power flow display while it is being processed by Pico 1 Press Ok twice to change to the Circuit diagram display and actuate push button S1 The relay energizes and Pico shows the flow of current 2 Press push button 2 that has been connected as a break contact The circuit connection is interrupted and relay Q1 drops out PROGRAM DELETE PROG 3 Commission the Pico 3 9
162. the symbol of the jump coil EXAMPLE A selector switch allows two different sequences to be set e Sequence 1 Switch on Motor 1 immediately e Sequence 2 Switch on Guard 2 Wait time then switch on Motor 1 Contacts and relays used Coil Function n Sequence 1 12 Sequence 2 I3 Guard 2 moved out 112 Motor protective circuit breaker switched on 01 Motor 1 02 Guard 2 1 Wait time 30 00 s on delayed D1 Text Motor protective circuit breaker tripped Circuit Diagram Power Flow Display 11 selected I1 1 I1 1 I2 2 I2 2 21 ae L 01 01 Range from jump label 1 b es processed ae 8 8 Jump to label 8 Range to jump label 8 skipped decens 02 Deane ee Ss 02 Q2 I3 TT2 Q2 I3 TT2 T2 01 T2 01 8 8 Jump label 8 circuit diagram Tote D1 D1 Processed from this point Example Programs Draw a Circuit Diagram with Pico 4 55 The Pico circuit diagram is created using ladder logic This section contains a few programs intended to demonstrate possibilities for your own circuit diagrams The values in the logic table have the following meanings for contacts e 0 make contact open break contact closed e 1 make contact closed break contact open For relay coils Qx 0 7 coil not energized
163. this manual Rockwell Automation support Use this manual if you are responsible for designing installing programming or troubleshooting control systems that use Pico controllers You should have a basic understanding of electrical circuitry and familiarity with relay logic If you do not obtain the proper training before using this product This manual is a reference guide for Pico controllers It describes the procedures you use to install wire and troubleshoot Pico Refer to publication 1760 001 Pico Controller Getting Results Manual for a basic overview of Pico and an introduction to Pico programming Publication 1760 UM001D EN P September 2005 Preface 2 Related Documentation The following documents contain additional information concerning Rockwell Automation products To obtain a copy contact your local Rockwell Automation office or distributor For Read this Document Document Number A basic overview of Pico and an introduction to Pico programming Pico Controller Getting Results 1760 GR001 Manual In depth information on grounding and wiring Allen Bradley Allen Bradley Programmable 1770 4 1 programmable controllers Controller Grounding and Wiring Guidelines A description of important differences between solid state Application Considerations for SGI 1 1 programmable controller products and hard wired electromechanical devices Solid State Controls An article on wire sizes and types
164. tin 700 Type RM Relay 24V dc 700 N13 Bulletin 700 Type R Relay 48V dc 700 N16 Bulletin 700 Type RM Relay ABV dc 700 N17 Bulletin 700 Type R Relay 115 125V dc 700 N11 Bulletin 700 Type RM Relay 115 125V dc 700 N14 Bulletin 700 Type R Relay 230 250V dc 700 N12 Bulletin 700 Type RM Relay 230 250V dc 700 N15 Bulletin 700 Type N P or PK Relay 150V max acor DC 700 N24 Miscellaneous electromagnetic 150V max acorDC 700 N24 devices limited to 35 sealed VA Connect the Inputs Pico inputs switch electronically Once you have connected a device via an input terminal you can reuse it as a relay contact in your program as often as you like 24 V si4 eue c xeereTUeIYyUTTUTUTU E NS sol i Bc n a c eae me 26 Connect devices such as buttons or switches to Pico input terminals Publication 1760 UM001D EN P September 2005 Installation 2 15 Connecting AC Inputs ATTENTION For Pico controllers with ac inputs connect the inputs to the same phase as the power feed L1 in accordance with VDE IEC UL and CSA safety regulations Otherwise Pico may not detect the switching level or it may be damaged by excess voltage Input Specification Input Signal OFF signal 0 to 40V ac Voltage Range signal 79V to 264V ac Input Current I1 to I6 19 to 112 R1 to R12 0 25 mA at 120V ac 0 5 mA at 240V ac 17 and 18 4 mA at 120V ac 6 mA at 240V a
165. ting Values 4 SN Change value up down arrows HE MM 4 23 Move cursor between parameters left right DD MM 7 03 NS YEAR 2004 ei Stores Entries Left right arrow moves the cursor between the day and time digits Retain previous value Up down arrow changes the value of the parameter Up arrow increment Down arrow decrement Publication 1760 UM001D EN P September 2005 Chapter 2 Installation Pico is installed in the following order connect devices together if necessary e Mount e Use surge suppressors e Wire the inputs e Wire the outputs Connect incoming power Prevent Electrical Shock EN these guidelines when you handle the controller e Remove power before working on any of the wiring to Pico Touch a grounded object to discharge static potential e Wear an approved wrist strap grounding device e If available use a static safe work station Publication 1760 UM001D EN P September 2005 g 2 2 Installation European Communities EC Directive Compliance Publication 1760 UM001D EN P September 2005 If this product has the CE mark it is approved for installation within the European Union and EEA regions It has been designed and tested to meet the following directives EMC Directive This product is tested to meet the Council Directive 89 336 EC Electromagnetic Compatibility EMC by applying the following standards in whole or in part documented in a tec
166. tly Use shielded twisted pair cables to prevent interference with the analog signals For short cable lengths ground the shield at both ends with a large contact area If the cable length exceeds 30m 98 4 ft grounding at both ends can result in ground loops between the two grounding points and thus to the interference of analog signals In this case only ground the cable at one end Do not route signal lines parallel to power cables Connect inductive loads to be switched via Pico outputs to a separate power feed or use a suppressor circuit for motors and valves If loads such as motors solenoid valves or contactors are operated via the same power feed switching may result in interference on the analog input signals Publication 1760 UM001D EN P September 2005 g 2 20 Installation Publication 1760 UM001D EN P September 2005 The following four circuits illustrate application examples for analog value processing Ensure that the reference potential is connected Connect the of the power supply unit for the different setpoint potentiometers and sensors to the OV of the power feed Setpoint Potentiometers V dc OV Fi ret 79 OV 121 COM N 00000000000 Md V de Inputs x V dc 17 18 0 to 10V V de 12Vde for 1760 L12DWD V de 24V de for 1760 LxxBWB xx Use a potentiometer with a
167. to 10 V Input data is evaluated by built in analog comparator function relays Circuit connections Every line in the circuit diagram display represents a circuit connection Circuit diagram elements As in conventional wiring the circuit diagram is made up of circuit elements These include input output and marker relays plus function relays and the P buttons Connect mode Connect mode is used to wire up the circuit elements in your Pico circuit diagram Contact behavior The contact behavior of any circuit element can be defined as either a break contact or a make contact Break contact elements are identified by a line on top of the identifier Exception conditional jumps Entry mode Entry mode is used to input or modify values when creating circuit diagrams or setting parameters for example Flip flop relay An impulse relay is a relay which changes its switching state and stays changed latched when a voltage is applied to the relay coil for a short time Function relay type Function relays are provided for more complex switching tasks Pico features the following types of relay e Timing relays e Time switches e Counters e Analog comparators e Text marker relays Input The inputs are used to connect up external contacts In the circuit diagram inputs are evaluated via contacts I1 to 112 R1 to R12 on the expansion modules Pico DC units can also receive analog data via inputs I7 and I8 Interf
168. tputs 112345678 MILD mo Weekday BOO 12 50 Time 01234 RUN RUN STOP Mode Hon lot Publication 1760 UM001D EN P September 2005 g 1 8 System Overview 1760 L18xxx Status Display Inputs l 25 v9 Weekday Time MO 02 00 Outputs 34 RUN RUN STOP Mode Inputs 1 and 2 ON Outputs 3 and 4 ON 1760 L18xxx EX and 1760 L20xxx Status Display for Expansion Module Inputs _ 1 12 Expansion RS AC P AC Expansion OK P Buttons Weekday Time wo 10 42 Outputs ED iau 8 RS Expansion functioning correctly AC AC expansion functioning correctly DC DC expansion correctly LED Indicators Catalog numbers 1760 L12AWA ND 1760 L12BWB ND 1760 L18xxx 1760 L20BBB EXND 1760 IA12XOW6GI 1760 IB12XOBS 1760 IA12XOWAI and 1760 IB12XOW6OI all feature an LED indicator on the front that shows the status of the incoming power as well as Run or Stop status LED Indicator Status Indicates LED OFF No power LED continuously lit Power present Stop mode LED flashing Power present Run mode Publication 1760 UMOO01D EN P September 2005 Menu Structure System Overview 1 9 Main Menu Without Optional Password Protection STOP Circuit diagram menu RUN Power flow display
169. until the preset time has elapsed If this procedure is interrupted by an interruption of power the belt is only permitted to run empty after power up for the remainder of the preset time period This task is implemented using retentive markers Publication 1760 UM001D EN P September 2005 7 10 Retention Contacts and relays used Circuit Diagram Parameters Entered 2 TT6 76 501 S 30 00 Coil Function M16 TRG T8 1 13 m UY M cc T1 6 77 One shot timers i LRES T1 SM16 12 Start conveyor belt Mi6 TT8 Time setting for T6 T7 01 Conveyor belt motor TB RQ1 Stop conveyor belt pos M16 Stop selected T8 Remaining time I2 and I3 are converted to one shot pulses by T6 T7 Only the actuation of the push button is recognized Should they remain constantly pressed malfunctions would occur In the above example T7 does not have to be retentive I2 is a normally open push button and I3 is a normally closed push button A normally closed push button is used for the STOP CONVEYOR signal so that in the event of a loose or broken wire the conveyor automatically stops Signal diagram 12 T6 01 M16 T8 t ts tit t 30s U Supply voltage The make contact of T8 closes for one Pico cycle and resets M16 Q1 Publication 1760 UM001D EN P September 200
170. urns on at 4 00 pm on Friday and switches off at 6 00 am on Monday 02A 92 FR D MO ON 16 00 ON OFF sa OFF 06 00 Signal Diagram FR 15 SU A on E i E m a n Output A NN Publication 1760 UM001D EN P September 2005 Draw a Circuit Diagram with Pico 4 45 Example 3 Time switch 3 turns on overnight at 10 00 pm on Monday and switches off at 6 00 am on Tuesday 63 D D MO ON 22 00 OFF 06 00 Signal Diagram IMPORTANT If the Off time is before the On time Pico will switch off on the following day Example 4 The time settings of a time switch can overlap The clock turns on at 4 00 pm on Monday whereas on Tuesday and Wednesday it turns on at 10 00 am On Monday to Wednesday the turn off time is 10 00 pm OAA O4 B D MO WE D TU WE ON 16 00 ON 10 00 OFF 22 00 OFF 00 00 Signal Diagram on 16 00 22 00 on 10 00 24 00 on a Output 10 00 22 00 Turn on and turn off times always follow the channel which switches first Publication 1760 UM001D EN P September 2005 4 46 Draw a Circuit Diagram with Pico Publication 1760 UM001D EN P September 2005 Q1 D ON OFF MO FR 06 00 22 30 Example 5 The power to Pico is removed between 3 00 pm and 5 00 pm The relay drops out and remains off even after the power returns
171. ut LEDs dd ell Jumper O Power Supply Unit ma Observe the following precautions when using the DC Simulator 1 The jumper on the circuit board must be in the RC lower position The simulator will not operate if the jumper is in the TC upper position 2 When using the digital input switches for inputs I7 and or I8 make certain that the corresponding analog input potentiometers are fully rotated to the OFF clockwise position 3 When using the analog input potentiometers for inputs I7 and or I8 be certain that the corresponding digital input switches are in the OFF position Publication 1760 UM001D EN P September 2005 Appendix A Specifications Physical Specifications Specification 1760 L12xxx 1760 L18xxx 1760 L20xx 1760 0W2 1760 1A12X0W6l 1760 1A12X0W4I 1760 IB12X0B8 1760 IB12X0B8 Dimensions W x H x D 71 5 mm 2 82 in x 90 mm 3 55 107 5 mm 4 24 in x 90 mm 3 55 35 5 mm 1 4 in x 90 mm 3 55 in x 56 5 mm 2 08 in in x 56 5 mm 2 08 in in x 56 5 mm 2 08 in Weight g 200g 7 02 300g 10 6 oz 70 Mounting DIN Rail 50022 35 mm or screw mounting with 3 or 4 mounting feet Solid Stranded AWG 22 to AWG 12 Slot head screwdriver width 3 5 x 0 8 mm Tightening torque 0 57 to 0 79 Nm 5 to 7 Ib in Environmental These environmental specifications apply to all of the Bulletin 1760 22 roducts Specificati
172. value 0153 Retention The high speed counter can be run with the retentive actual value You can select the retentive counter relays in the System menu by selecting Retention C5 to C7 C8 and C13 to C16 can be selected If a counter relay is retentive the actual value is retained when the operating mode changes from Run to Stop as well as when the power supply is switched off Publication 1760 UM001D EN P September 2005 4 42 Draw a Circuit Diagram with Pico When Pico is restarted in Run mode the counter relay continues with the retentively stored actual value 1 Count pulses at counter input 11 I2 2 Setpoint of the counter 3 Actual value of the counter 4 Enable of the counter CC13 CC14 5 Count direction direction coil DC13 DC14 6 Reset coil of the counter RC13 RC14 7 Contact of the counter C13 C14 e Range A The relay contact C13 C14 of the counter with setpoint value 512 switches as soon as the actual value is 512 e Range B When new count pulses or the counter enable is not present the actual value is retained e Range C If the count direction is reversed DC13 DC14 the contact is reset when the actual value is 511 e Range D The count direction is set to up counting e Range E The Reset coil RC13 RC14 resets the counter to 0 No pulses are counted e Range F The Reset coil is not active pulses are counted Time Switch All versions of Pico ar
173. values are reset to 0 Gnarker off This also applies when there is no program in Pico e there is a changeover from retention enabled the display shows RETENTION OFF to retention disabled the display shows RETENTION ON e the circuit diagram is deleted via the DELETE PROG menu Publication 1760 UM001D EN P September 2005 Retention 7 3 Transfer Retentive Behavior The setting for retentive behavior is a circuit diagram setting in other words the setting of the retention menu may also under certain circumstances be transferred to the memory card or during uploading or downloading from the PC Circuit Diagram Transfer Behavior 1760 L12BWB xx 1760 L12DWD xx and 1760 1 18 Memory Module When transfer is in this direction the actual values are retained in Pico The retention setting is transferred to the card 1760 L12BWB xx 1760 L12DWD xx and 1760 L18xxx PicoSoft The Pico circuit diagram is stored The actual values are retained in Pico All Pico circuit diagram settings are transferred to the EAS file PicoSoft 1760 L12BWB xx 1760 L12DWUD xx and 1760 L18xxx The transfer to PicoSoft is carried out according to the relevant settings Change the Operating Mode or the Circuit Diagram When the operating mode is changed or the Pico circuit diagram is modified the retentive data is normally saved together with the actual values The actual values of relays no longer being used are also retained
174. witch contacts in the Status menu display and not in the circuit diagram display Publication 1760 UM001D EN P September 2005 Draw a Circuit Diagram with Pico 4 13 The Status menu display shows whether the P Buttons are used in the circuit diagram Display Function P Button function active P2 Button function active and P2 button pressed P Button function not active Empty box P buttons not used Check the Circuit Diagram Pico allows you to monitor the switching states of contacts and relay coils during operation 1 Complete the small parallel connection and switch Pico to Run mode via the main menu 2 Return to the circuit diagram display You are now unable to edit the circuit diagram If you switch to the circuit diagram display and are unable to modify a circuit diagram first check whether the unit is in Stop mode IMPORTANT The circuit diagram display performs two functions depending on the mode e STOP Create circuit diagrams e RUN Show power flow display Switch on I3 In the power flow display current carrying connections are thicker than those that are not powered You can follow a current carrying connection across all circuit connections by scrolling the display up and down The power flow display will not show signal fluctuations in the millisecond range This is due to the inherent delay factor of LCD displays Publication 176
175. with random range Single pulse Hashing Group 2 Off delayed Off delayed switching with random time range Retention with Group 1 Requirement When power is applied to Pico actuated trigger coils TT7 TT8 can retain their state 1 switched on until the preset time period has elapsed This can be implemented using retentive markers or inputs connected to power Retention with Group 2 Requirement When power is applied to Pico actuated trigger coils TT7 and TT8 can retain their state 0 switched off until the preset time period has elapsed This can be implemented using retentive markers or inputs connected to power Retention 7 9 Examples On Delayed Switching On Delayed with Random Range Retentive Task 1 On Delayed A motor must start up 30 seconds after an enable signal is given This task is implemented using an input device which retains its 1 state on power up Contacts and relays used Circuit Diagram Parameter Display T1 TTS x Lng Q2 S 30 00 Coil Function tore Motor Enable RES 02 Motor T8 Delay time Signal diagram 8 ty t2 t t 30s U Supply voltage I1 must be activated when the power is turned back on Task 2 A conveyor belt is to be run empty This no load running is implemented by using a time relay to keep the belt running following the STOP BELT command
176. y modules can be read on the Series B Pico controllers The Series B Pico controllers can only write to the 1760 MM2B memory modules PicoSoft and PicoSoft Pro PicoSoft are optional PC programs that allow you to create store test and manage Pico programs Completed programs are transferred between your PC and Pico via the connecting cable Once you have transferred a circuit diagram you can monitor the program running in Pico directly from your PC Publication 1760 UM001D EN P September 2005 4 8 Draw a Circuit Diagram with Pico Work with Contacts and Relays Publication 1760 UM001D EN P September 2005 I2 Contact Contact Number Name 04 Relay Number Relay Name Coil Function In Pico circuit diagrams the switches buttons and relays of conventional relay logic are connected using input contacts and relay coils Connect S1 to Pico input terminal I2 Connect S2 to Pico input terminal I3 1 Connect load M1 to Pico output 04 a S1 or S2 switches on M1 CR1 52 12 4 04 CR1 Pico Circuit Diagram First specify which input and output terminals you wish to use in your circuit Depending on the model Pico controllers have 8 12 or 24 input terminals and 4 6 8 10 or 16 outputs The signal states at the input terminals are recorded in the circuit diagram using input contacts I1 to I12 In the circuit diagram the outputs are switched using output relays Q1 to

1760-UM001D-EN-P, Pico Controllers User Manual

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