810 Microprocessor Based 3-Term Controller
Contents
1. B Only Motor Valve Controller output heat or cool channel Notes 1 Add 100 to code of de outputs for reverse LED output indication e g Isolated 0 10V code 123 100 code 223 2 Auto Manual option 44 available with heat output only amp Only one alarm available with these options ee setting required Inputs The input code cosists of three digits First digit Second and third digits Additional Features Table Facility Input tst digit 2nd digit Iron Constantan J fron Contantan DIN Ni CrNi ALK 0 0 5V EuiCon T PR 1 Analogue Setpoint Loca Trim 1 5V 13 Rhi 2 Analogue Trim Local Setpoint O 10V Et ee ave S R 3 0 10mA 30 Rh Pt 6 Rh B 4 Local Remote O 20mA Ny 26 Be Engelhard 5 Remote Setpoint 4 20mA W 5 RAN 26 Re Hoskins s External Power Limit Potentiometer Front Rear a 2 tpoi i WM 26 Re Hoskins 8 nd Setpoint Speci No selection Linear inputs See note below Rt 1002 at 0 C Notes 1 2nd Setpoint has no input 2 External power limit remote Setpoint and trims have no selection e g 003 Deg C Type K 3 These facilities are mutually exclusive 4 1f Local Remote required with Auto Manual option 44 only codes Note Linear inputs assuming a zero reference are coded X42 The 1X8 and 2X8 are permissible magnitude of the input is then specified e g 442 4 2 7 8 is a 5 If Locai Remote is required with a Motor Valve Controller o2. illuminate for the heat channel and any associated cool channel is indicated by the OUTPUT 1 LED 2nd Setpoint Indication of 2nd setpoint either front or rear selected is by LED in the centre of the fascia When illuminated the 2nd setpoint is selected and when extinguished the instrument reverts to its normal setpoint Local Remote Indication of a remote facility on local remote instruments is by the LED in the centre of the fascia Selection of either the front panel Local Remote pushbutton or closure of the switch for rear selection causes this LED to illuminate in remote and extinguish in local Auto Manual Indication of the manual facility on Auto Manual instruments is by the LED in the centre of the fascia Selection of either the front panel Auto Manual pushbutton or closure of the switch for rear selection causes this LED to illuminate in manual and extinguish in auto If an optional Local Remote facility is used the remote LED will iluminate when in Remote Setting Up Setting up is achieved by access to the parameters through a scroll button which is located behind the front door panel The Instrument is supplied with the scroll button disabled Values of proportional band integral and derivative times are set to a standard to suit the average application To modify these values the scroll button has to be enabled To enable the scroll button remove the instrument from its sleeve Locate the switch at the rear o
3. 0 20mA 10V dc max isolated 4 20mA 10V dc max isolated 0 10V 20mA Isolated 5 1V 20mA max Isolated 5 0V 20mA max Notes 1 With Self tuning Band Deviation high non latching de energised only 2 With Motor Valve Controller Any type of alarm non latching de energised only 3 Code 0 in each alarm field for no alarms Options No power feedback Screw terminals Fastons standard No cold junction compensation 50 C ext ref Isolated 10 OmA 10V de max 131 No cold junction compensation 0 C ext ref isolated 20 OmA 10V dc max 132 Downscale thermocouple break action Isolated 20 4mA 10V de max 133 Fascia units not equai to input units specify blank or units Isolated 10 0OV 20m lt A Triac heat cycling Triac on off Triac cycling 1A 264V ac linear characteristics Triac cycling 1A 264V ac non linear characteristics Motor Valve Controller Dual Relays 2A 240V Retransmission of measured value 0 10V unisolated Retransmission of measured value 0 5V unisolated Setpoint stop lower Setpoint stop upper Auto Manual Seif tuning Localiremote setpoint unisolated Remote setpoint 2nd setpoint External power limit B Analogue Setpoint Local trim Analogue trim Local Setpoint see additional features table below Available only with no heat output or triac heat cycling on output 1 Not available with self tuning
4. 0 50 Maximum power HL 100 OFF Approach AP 1 00 OFF Setpoint As required 2 Switch on the process and observe the start up and running conditions which should appear as shown SETPOINT Deg C oscillation Cycle period TIME 3 From these observations the following initial parameter values can be approximated Pb D Full scale x 100 Set to next higher value if between fixed settings ti T seconds td T 5 seconds Set to next lower value if between fixed settings 4 Reset instrument with the values calculated in para 3 and restart the process from cold If oscillation still results increase proportional band decrease derivative 5 Example Using a 1200 deg C Muffle furnace with settings as in para 1 the following waveforms resulted C Pb 0 50 Pb 3 Ph 3 ti Off ti 600 ti 600 th 600 id Off td 150 td 60 td 60 HL 106 HL 100 HL 100 HL 100 AP 1 00 AP 1 00 AP 100 AP 2 6 The Approach control adjusts the start up characteristics of the furnace by releasing the drivative action at some variable point away from setpoint This term is expressed as the number of proportional bands away from the setpoint value Below are shown various waveforms for the same PID settings but with different Approach values PEELS AP 0 25 AP 0 50 AP 7 00 AP 2 00 AP 3 10 TYPICAL WIRING SCHEMATICS Figure 1 Three phase fast cycling close delta synchronised system
5. displayed Depress t the UP DOWN buttons to set the 2nd setpoint to gt the required value St or LS Digital Setpoint Trim For instruments with a local digit setpoint trim facility depress the scroll button so that St or LS is displayed Depress the UP DOWN button to set the degrees of trim which is adjustable 10 of the instrument span SP or LS Analogue Setpoint Trim For instruments with a remote analogue setpoint trim facility depress the scroll button so that SP or LS is displayed Depress t the UP DOWN buttons to set the local digital setpoint AL Alarm For instruments fitted with Local Remote 2nd setpoint or trim facilities and an alarm channel depress the scroll button so that AL is displayed To set the limit of the alarm depress the respective UP DOWN buttons to set the required limit Pb Propartional Band On Off Hysteresis instrument span Depress the scroll button so that Pb is displayed Depress the UP DOWN buttons to set Pb to required value The proportional band settings are in 15 steps from 0 5 to 100 With on off control instruments Pb sets the ON QFF hysteresis in of span ti Integral Secs l Depress the scroll button so that t is displayed Depress the respective UP DOWN buttons to set the integral time to the required settings in 14 steps from indicating OFF to 1800 seconds td Derivative Secs Depress the scroll button so that t
6. setpoint and all parameters particular to the specific instrument These can include alarms PID settings approach heat cool cycle times maximum power 2nd setpoint settings and setpoint trim When a parameter other than measured value is displayed indication is provided by means of a flashing dot at the top of the display In the event of a thermocouple break the numeric display goes blank when the maximum scale range is reached Error Indications The nine segment bars situated to the left of the digital readout provide error percentages of measured values of temperature with respect to the set temperature Illumination of the centre bar only indicates within 0 5 of setpoint The bars above and below the centre bar indicate when illuminated the upscale and downscale errors respectively in increasing magnitude For instruments with a setpoint trim facility operation of the UP DOWN buttons causes the nett setpoint setpoint and trim to be displayed Alarms The respective ALARM LEDs will illuminate whenever an alarm is ON Optionally an instrument can have the numeric display flashing in an alarm condition with no alarm boards fitted and therefore the ALARM LEDs are inoperative Not applicable to Auto Manual instruments Outputs The OUTPUT LEDs illuminate when ever an output is operative Normally OUTPUT 1 LED indicates a heat channel and OUTPUT 2 LED a cool channel output If a triac heat channel is incorporated OUTPUT LED2 will
7. using the logic output from an 810 Controller to drive a pair of Eurotherm 450 series thyristor units with thermocouple sensor A Eurotherm Alarm Collection unit 603 gives in this case an audible warning of partial load failure Li L2 L3 N Eurotherm Alarm Collection Unit 603 qoOio i20V Figure 2 Relay output heat directly switching load with thermocouple sensor 100 110 120 11 Figure 3 The 2A relay output drives a contactor for heating and the 1A triac output operates a solenoid valve for cooling A thermocouple is used as the input sensor OOMONZV __ _ a wrana 81 Program Generator Retran Profile 0 10V zero to span Temperature Profile 12 Ordering Information Alarm Configurations the alarm codes consist of three digits You are welcome to order by description or by code below which is a useful check list Basic Product Code No relay Flashing onty Microprocessor Based 3 Term Controller 810 Band Non latching Energised alarm Deviation high De energised alarm Deviation low Ener alarm and flashing Full scale high De ener alarm and flashing Outputs Cool Full scale low No output Relay siow cycle with power feedback 2A 240V Relay on off no 3 Term Logic output unisolated 14V de min at 10mA Logic on off isolated 1 5V 20mA max Isolated 0 5V 20mA max Isolated O 10mA 10V dc max isolated
8. 5 or a 10K ohm potentiometer connected between terminals 13 14 and 15 Analogue Retransmission This unlinearised 0 10V or 0 5V 10mA max analogue output is available on terminals 16 and 17 as shown OPERATION Temperature Setting When power is connected the flourescent indicator panel will display the measured value of the temperature in digital form Depress and release either the UP or DOWN button and the display will indicate the setpoint value for five seconds and then revert to the measured value _ To alter the setpoint depress the respective UP DOWN button and after a delay of 3 seconds the setpoint will gt 5 2 5 1 2 0 5 1 lt 20 5 SETPOINT 0 5 1 1 2 2 5 gt 5 UPSCALE auooy ooo voses Manual Power Setting With an Auto Manual instrument selected to manual the manual power output will be actual power being delivered at the instant of selection Depress and release either the UP or DOWN button and the display will indicate the current output power in percentage To alter the power depress the respective UP DOWN button and the power will change in the required direction On this instrument the output power being delivered to the load whilst switched to the auto mode of operation can be displayed as a percentage by depressing the UP and DOWN buttons together As soon as the two buttons are released the display will revert to measured value indications The fluorescent indicator panel measured value
9. AT POWER H L t eee WITHOUT DECIMAL PLACES 0 100 0 100 XXXX WITH ONE DECIMAL PLACE XXX X gt 100 0 0 1000 0 100 lt 100 0 WITH TWO DECIMAL PLACES 0 100 0 1 00 XX XX HL External Power Limit For an instrument with an external power limit facility depress the scroll button until HL is displayed Depress and hold depressed one of the UP DOWN buttons and adjust the external power limit potentiometer to the required power setting Cc Cool Cycle Secs Depress the scroll button so that Cc is displayed Depress the UP DOWN buttons to set the required cycle time The cool cycle time is set from 0 3 to 80 seconds and should ideally be set to the highest time possible Note On non linear cool outputs code 093 whenever cool is demanded the cycle time is automatically set to 10 seconds therefore no setting of the cool cycle time is required Cr Relative Cool Depress the scroll button so that Cr is displayed Depress the UP DOWN buttons to set the required cool gain which is relative to the primary output and adjustable in 9 steps from 0 25 and 3 CL Maximum Power Cool Depress the scroll button so that CL is displayed Depress the UP DOWN buttons to set the percentages of the required power Maximum power settings available are 0 to 100 in increments of 1 End Once all parameters have been scrolled the
10. EUROTHERM MICROPROCESSOR BASED 3 TERM CONTROLLER TYPE 810 INSTALLATION AND OPERATING INSTRUCTIONS Display Error Indicators _ bars Output 1 LED mi Output 2 LED Push Button Up Local Remote I Button Alarmi LED Alarm2LED IH Push Button Down Parameters Parameter Scroll i Button Part No HA016938 810W 11 CONTENTS Page INSTALLATION 1 DIMENSIONAL DETAILS 1 CONNECTIONS AND WIRING 2 Supply 3 Inputs 3 Outputs 3 Alarms 4 Options 4 OPERATION 5 Indications 5 Setting Up 6 Three Term Control Parameters 9 TYPICAL WIRING SCHEMATICS 11 ORDERING INFORMATION 13 Sales and Service 14 WARNING NOTE This instrument has been designed and fully tested for single phase operation on supplies up to 264Vac This not only includes the power supply input but all relay and triac outputs whatever their function and the terminals to which they are connected Care must be exercised during installation and wiring of this unit to ensure that no connections are made from phases other than the one being used to power the instrument Failure to observe this precaution may result in instrument damage and or failure DIMENSIONAL DETAILS 96mm 96mm INSTALLATION The instrument plugs into a panel mounting sleeve which requires a DIN size 92 by 92mm cut out as illustrated Remove the instrument from the sleeve by opening the front panel door and with a screwdriver turn the screw in the b
11. OTE If no action is taken by the operator within eight seconds of the last action the display will automatically revert to indicating the measured value 0 l tn Self Tuning To select self tuning depress the scroll button so that tn is displayed and depress the UP button The instrument will now automatically self tune To terminate self tuning depress the scroll button so that tn is displayed and depress the DOWN button l Limit Alarms When a high or low deviation or band alarm is fitted the alarm setpoint can be adjusted between 0 and a top limit where the top limit is 20 of the span The limits for a full scale alarm are the limits of the span of the instrument A1 Alarm 1 To set the limit for orfe of the alarms depress the scroll button so that Al is displayed After approximately one second the digital readout will indicate the temperature setting of Alarm 1 To set the limit to the required value depress the respective UP DOWN buttons until the limit top or bottom is reached This limit will appear in the display m A Co I oP LG A2 Alarm 2 To set the limit of the other alarm depress the scroll button s that A2 is now displayed To set this limit depress the respective UP DOWN buttons until the tequired limit is reached SPor LS 2nd Setpoint _ For instruments with a 2nd setpoint facility depress the scroll button so that SP or LS is
12. ar Terminal Connections Isol oc Cr Rel Cool Cc Cool Cycle Cl Cool Power E EUROTHEFRPA Worthing England 30903 68500 Hodel No 19 903 085 5421 4201 89919 100 13 212 312 08 09 291 23 00 Serial No 612345 001 001 06 95 Range 3 0 to 1002 Linear Mec Br UJP L Live 240 2 3 Neutral 4 Q P1 N O 0 P1 W E 6 0 P1 CO 25 DC 1 P 26 00 1 P Oo Oo d a oe o 28 0 P2 LINE 27 0 P2 LOAD 30 SLALI COR 32 AL1 N70 SILALI N C 34 AL2 CON 35 AL2 4 0 18 Earth 36 AL2 NVC cupRi2g Sig am Rear Terminals Supply Power supply for the instrument is connected to terminals 1 2 and 3 Neutral to terminal 3 and either 200 220 240V to terminal 1 or 100 110 120V to terminal 2 The ground 1 Live 240V 2 Live 120V 31 Neutral connection is made to terminal 18 18 Earth Instrument Earth Inputs Note On some instruments a filter module is fitted above the input terminal block Ensure that the GREEN lead is connected to terminal 18 and one BLUE lead is connected to terminal 27 for T C inputs or to terminal 26 for all other inputs and the other BLUE lead to terminal 17 Thermocouple Thermocouple connections are made to terminal 25 and 27 positive lead to 25 and negative 25 T C o 27 T C lead to 27 Compensating cable of the correct type must be used between the thermocouple and the instrument and must be connected in the correct polarity To check compensating lead
13. d is displayed Depress the relative UP DOWN buttons to set the derivative time The derivative settings are in 13 steps from indicating OFF to 600 seconds AP Approach Depress the scroll button so that AP is displayed This control allows adjustment of the rate of change of temperature as setpoint is approached The approach value is set by the respective UP DOWN buttons and selectable from 0 25 to 3in9 steps He Cycle Time Secs Depress the scroll button so that Hc is displayed Depress the UP DOWN buttons to set the required cycle time Cycle times available are 0 3 1 5 10 20 40 and 80 seconds For logic outputs it is normally set to 0 3 and for relay outputs to 20 seconds Settings below 20 seconds for relay outputs can cause increased contact wear and premature failure With dc outputs the cycle time is fixed at 0 3 seconds The cycle time setting is inoperative for ON OFF control instruments HL Maximum Power Heat or Cool only Depress the scroll button so that HL is displayed Depress the UP DOWN buttons to set the percentage of the required power normally set to maximum Irrespective of the range given to H L see table below this parameter will vary the maximum output power from zero to 100 INSTRUMENT TYPE SETPOINT Controllers which have a All other Controllers RANGE remote input signal and fitted with a cool channel and or one alarm only RANGE OF MAX HE
14. f the microprocessor circuit board as shown __ Slide the switch towards the top of tha instrument to enable the scroll button To disable the scroll button slide the switch towards the bottom of the instrument If a link switch is fitted press down on the link and engage the hook as shown Self Tuning Self tuning if enabled will automatically tune setting PID parameters at half way to setpoint on power up and then continuously adjust the proportional band whenever an error of Slide Switch Enabled Link Switch BBO Enabled Disabied TOP Disabled 4 C or greater is seen by the controller Self tuning may be BOTTOM initiated manually as described below The self tune PID settings _ Microprocessor can be monitored at any time Board Parameters To the left of the scroll button and on the inside of the door panel are listed a series of control parameters pertinent to that instrument Each parameter is shown in abbreviated form Operation of the scroll button causes the abbreviation to appear in the left hand segments of the digital fluorescent indicator panel After approximately two seconds the abbreviation is replaced by the value of that parameter NOTE Until the scroll button is released the first digit of the abbreviation is not displayed Adjustment of a parameter is achieved by means of the UP DOWN buttons Subsequent operation of the scroll button selects the next parameter listed N
15. nly codes voltage input from 4 2V to 7 8V 4X6 and 5X8 are permissable X is any valid number Type B thermocouple no cal error accuracy below 600 C e g Local Remote 0 5V input with front selection code 405 Scale Ranges 2nd Setpoint with rear selection code 886 External power limit set by external potentiometer code 678 Standard ranges Standard ranges ode 607 628 608 609 627 626 610 Example order 810 003 000 003 618 13 112 412 09 00 810 with 2A 240V slow cycle relay output heat no 2nd output 0 1200 C Note For display ranges not shown quote code 699 followed by the type 1 240 volt supply band alarm plus full scale high alarm non latching magnitude e g 699 0 750 de energised in alarm screw terminals Supply Voltage Ordering Code 110 10 220 10 so60Hz Basic Heat Cool Scale Supply Alarm Alarm 120 10 Product Output Output Input range voltage 1 2 Options End 240 10 Yy v Yy y y y Yy Yy Y y 13
16. ottom hand corner counter clockwise The instrument wilt start to withdraw from the sleeve and once the screw has been turned to its furthest extent the instrument can be withdrawn by hard Remove the top and bottom mounting clamps from the sleeve by gently levering outwards and easing downwards inside the sleeve Insert the sleeve through the cut out via the front of the panel Fit the mounting clamps in the slots from inside the sleeve and from the rear of the mounting panel tighten with a screwdriver By hand ease the instrument into the sleeve to its furthest extent With a screwdriver turn the screw in the bottom right hand corner clockwise until tight The instrument will be pulled completely into the sleeve engaging the rear terminals and be fully secured Note Do not attempt to dismantle the instrument without referring to the Maintenance Manual 200mm 9 mm max panel thickness CONNECTIONS AND WIRING Electrical connections are made via 3 way terminal blocks on the rear of the instrument All connections are low current and a 16 0 20mm wire size is adequate Labels on the instr ment and sleeve indicate the specific connections for the instrument EURO THEeRri 102 Worthing England 30903 48500 Model No 810 003 065 54214 203 89910 100 13 212 312 08 097 29121 06 Serial No 612345 001 001 06 85 Range 0 to 1002 Linear ALI DH AL2DL 0 to 100 s Linear Re
17. polarity lift the leads off the thermocouple twist them together and apply heat to the junction The digital readout value should increase An open circuit thermocouple normally causes the digital value to move upscale and the heat is turned off For processes where the heat must remain on for open circuit thermocouple downscale indication option 24 is specified Error indicators show direction of break protection and when the upper lower limit of scale is reached the display blanks Resistance Thermometer Platinum resistance three wire thermometers are connected to terminals 25 26 and 27 Connect the single connection side of the bulb to terminal 25 and the double connection to terminals 26 and 27 26 pci p Millivolts Signals 26 DCI P Inputs are connected to terminals 25 and 26 as shown Outputs Relay The controller is fitted with an output relay which has a single changeover contact connected internally between terminals 4 5 and 6 With no supply to the instrument the relay is de energised and terminal 4 is normally open N Q The relay is energised to apply power to the load and the voltage at terminal 6 is switched through to terminal 4 The contact is rated at 2A 264V rms and is suitable only for use with low power loads Slow cycle time proportioning or on off control is available Contact suppression is provided between the N O contacts and the wiper 6 0 P1COM Logic ali A logic output is pro
18. t Voltage or current input for remote analogue setpoint is applied to terminals 14 and 15 as shown The remote analogue setpoint can be set by means of an external 10K ohm potentiometer connect as shown to terminals 13 14 and 15 When rear selection of the Local Remote facility is required an external latching switch should be connected between terminals 11 and 12 External Power Limit Pot Max Pot Wiper Maximum heat output can be set externally by means of an analogue input positive to Pot Min terminal 14 negative to terminal 15 or a 10K to 47K ohm potentiometer as shown 2nd Setpoint A 2nd setpoint can be selected by a front pushbutton annotated SETPOINT 2 and or an 11 2nd S P Sel external selection button connected to the rear terminals 11 and 12 as shown When front 12 2nd S P Sel and rear selection are provided connected in parallel closure of either the front or rear contacts selects 2nd setpoint Digital Setpoint Trim An instrument with a digital setpoint trim accepts a full scale analogue setpoint signal to which is added a 10 digital setpoint trim The analogue signal may be a voltage or current input to terminals 14 and 15 or a 10K ohm potentiometer connected between terminals 13 14 and 15 Analogue Setpoint Trim An instrument with an analogue setpoint trim has full scale digital setpoint to which is added a 10 analogue trim The analogue trim may be a voltage or current input to terminals 14 and 1
19. term END is displayed After eight seconds the END term is automatically replaced by the measured value Control Variables steps Standard 810 Prop band 0 50 0 75 1 00 2 3 4 6 8 12 35 50 100 Integral secs off 15 30 45 60 90 120 150 200 300 400 600 906 1200 1800 Derivative secs off 5 10 15 20 30 40 60 90 150 200 300 400 600 Approach rel Pb 0 25 0 50 0 75 1 00 1 25 1 50 2 00 2 50 3 00 Cycle Times secs 0 3 1 5 10 20 40 80 Maximum Power 0 to 100 in 1 steps Relative Cool 0 25 0 50 0 75 1 00 1 25 1 50 2 00 2 50 3 00 810 Auto Manual Prop band 0 5 0 8 1 1 1 7 2 5 4 6 8 13 20 26 34 50 Integral secs off 5 7 10 15 25 40 65 100 145 210 300 450 700 1100 1700 Derivative secs off 1 5 2 5 4 6 9 12 17 24 33 46 65 90 130 180 Cycle Times secs 0 3 1 5 10 20 40 80 Maximum Power 0 to 100 in steps Three Term Control Parameters Three term control parameter values for optimum control are a matter of application if the values are unknown the following method will give acceptable settings which can then be finally adjusted to give the optimum control 1 The practical approach is to control the load with an on off system and measure the resulting oscillation and the number of times it occurs per minute Set the following conditions Proportional band Po Integral time ti Derivative time td
20. vided at terminals 8 and 9 This output is an unisolated 10mA at 14Vdc E ogicO P1 minimum signal with slow or fast cycle time proportioning or on off This output is suitable 9 LogicO P1 for use only with the Eurotherm Thyristor Units Isolated DC DCO P1 An isolated dc output is provided at terminals 8 and 9 see code for relevant output 9 DCO P1 Triac 28 O P1 LINE With controllers provided with triac output connections are made to terminals 28 and 2Qas 29 0 P1 LOAD shown The triac is connected across the line and load terminals with a live supply i 1A 264V ac max connected to the line and one side of the load connected to the load terminal The other side of the load should be connected to the neutral line During the ON time the circuit between 28 and 29 is closed Alarms Controllers provided with relay alarm outputs are internally connected to terminals 31 32 and 33 for Alarm 1 and to 34 35 and 36 for Alarm 2 Terminals 32 and 35 are N O when the relays are de energised When energised the voltages at terminals 31 and 34 are switched through to the output terminals 32 and 35 respectively Relay contact rating 1A 264V rms Contact suppression is provided between the N C contacts and the wiper with the relay de energised in alarm fail safe Suppression is provided between the N O contacts and wiper with the relay energised in alarm AL1 COM AL1 N O ALI N C Options Remote Analogue Setpoin
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