installation/operations manual
Contents
1. LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 1 1 GENERAL Models LC2 W8 8 zone controller with warnings LC2 16 16 zone controller without warnings LC2 W16 16 zone controller with warnings LC2S slave controller Sport field lights or other electrical equipment may be controlled from any tone dial equipped telephone A person responsible for scheduling of field lights can control them from wherever a telephone is and not have to go to the field The LC2 is a programmed schedule controller ie lighting schedules may be set up ahead of time by telephone and the controller will execute them automatically It can also control directly ie switch lights instantly as the commands are given Depending on the model eight to sixteen different fields or lighting zones in a complex may be operated by one controller Up to 64 zones may be operated using slave controllers Security lights sprinklers pumps or any other electrical equipment may be controlled in the same way 1 2 OPERATION MODES The LC2 controller has two modes security and control It will answer the telephone when it rings and wait in security mode up to six seconds for the correct four digit code sequence to be entered If the correct code is not received the controller will disconnect If the correct code is received the controller will give the current time and day from its clock and then enter the main menu for control mode In control mod2. To check a zone that is not functioning ie the driver lamp is on but lights not working use the VOM to check for the presence of 120Vac relative to neutral on the terminal above the upper right corner of the relay module for the zone If it is there the problem is outside the controller in the power contactor or high Voltage power If the 120Vac is not present work back down the line to the top of the associated fuse hidden between the relay modules bottom of the fuse and the bus connecting all the left relay terminals looking for the break point The bus is 120Vac hot which was checked previously If the fuse is faulty replace it with a 5 Amp Pico fuse Littelfuse brand If the break is in the relay check it by replacing the relay or temporarily exchanging relays with another zone NOTE The solid state relays used in this controller have internal snubber circuits which always pass a tiny amount of current The preceding Voltage checks of the relay output assume that the normal loads are connected If they are not because of a disconnected wire open switch etc a Voltmeter may show the relay to be activated when it is not 5 6 PERIODIC MAINTENANCE The 12V storage battery should be replaced every two to four years Turn off the AC mains power disconnect and replace the battery per sec 4 7 then turn AC power on again The cpu battery will maintain clock and schedule memory while the storage battery is disconnected Check th
3. humidity etc Special software and hardware is required Contact Theta Labs for details For LC2 W8 with one relay board Lighting output for zones 1 8 are labeled 0 7 on the relay board The warning horn output for zones 1 8 are labeled 8 15 Eg for zone 1 the lighting contactor coil would connect to relay 0 and the warning horn to relay 8 For LC2 16 with one relay board The relays for zones 11 18 are labeled 0 7 those for zones 21 28 are labeled 8 15 For LC2 W16 with two relay boards Lighting outputs are all on the top relay board numbered the same as for the LC2 16 above The warning outputs are on the second board and are labeled the same 4 7 MAIN BATTERY After the panel is installed and wired install the 12 Volt battery Connect the red wire to the positive terminal and the black wire to the negative terminal Whether the battery is charged or not the dc converter will not start until ac mains power is applied 4 8 TURN ON Proceed to Initialization section 2 1 5 TROUBLE SHOOTING amp MAINTENANCE 5 1 GENERAL If the controller does not perform properly first the procedure in Section 2 4 should be used to analyze the general nature of the problem Often the problem is not in the controller either power is not reaching it the telephone line is out of service manual switches have been left in the wrong position etc Only after these possibilities are eliminate
4. same as the code when the switches are viewed with their numbers right side up The relationship of the numbers on the switches to the telephone push buttons is as follows SIAICIEI switch marking 01214 l 7890 6 pushbutton 123456 Valid zone settings are provided to reduce mistaken command entries by rejecting commands for zones which are not in use and to determine what zones are reported in an all zone status read At the top front edge of the same board is a switch with eight small toggles in one body These toggles are numbered 1 through 8 corresponding to the zone numbers 1 through 8 for an 8 zone controller Setting the toggle for a zone to ON up away from the board places that zone in active in use status For a 16 zone controller without warnings LC2 16 the toggles are for zones 21 28 zones 11 18 being assumed valid A 16 zone controller with warnings LC2 W16 has two boards with valid zone switches The toggles on the primary board with the security switches are for zones 11 18 those on the second board for zones 21 28 LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 DIRECT CTL FUNCTION SELECT FUNCTION CLOCK FUNCTION Response by LC2 If electric power is off day time is replaced with warning z ZonezOn Direct Control 1 Set Time 9 All Zones On Schedule 2 Set Day z Zone z Off Clock 0 Return 9 All Off Hang up z0 Zone z Status 90 All Zones Stat 00 Retu
5. at the bottom of the fuse the fuse is bad The right fuse is a spare and may be moved to the left side with power off but should be replaced as soon as possible with a 1 2A slow blow or 1 Amp regular 3AG If 120Vac is present at both the top and bottom of the fuse and the neon indicator is still not on the bulb should be replaced NE 51 5 2 2 Voltage checks Locate the dc de converter which is at the bottom center of the panel Voltage checks will be made with the VOM on the wires along the top edge of the converter using the mounting screws as a return Tolerance is 5 Red 5Vdc org 12Vdc Blk brn 0V yel 12Vdc The blue wire carries the raw power from the charger which is approx 0 7Vdc higher than the battery Voltage in the range 14 15Vdc Check the battery Voltage between the amp terminals of the battery after the battery is fully charged The Voltage should be 13 8 0 1Vdc at a temperature of 25 C For each degree above this the Voltage should be 02V lower and vice versa Eg if the temp is 35 C the battery voltage should be 13 6V If these voltages are not correct the converter could be faulty or there could be an abnormal load to determine which unplug all the boards and try again 5 3 TELEPHONE CHECKS Be certain that all the telephone signals are reaching the controller talk battery ringing and audio If the local telephone instrument rings gets dial tone and can make calls out this is virtually
6. board 3 6 SPEECH GENERATOR BOARD A dedicated micro processor converts plain ASCII text into synthesized phoneme based speech simulating a male voice Phrases are assembled as need by the controller cpu and entered to the speech generator as text The generator outputs line level audio for the telephone line and the speaker amplifier which is on the I O board 3 7 MODULAR RELAY BOARD ref schematic diagram PB 16A The low power dc signals from the I O board are boosted by the sixteen solid state relays on this board to 120Vac with sufficient power to operate the large contactors which do the actual switching of the high voltage power to the lamps The output from each S S LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 relay is protected with a5 Amp fuse A red LED indicator in series with each relay input shows the relay state On model LC2 W16 one sixteen relay board controls the lighting contactors and a second relay board controls the warning devices NOTE The following items comprise the Un interruptible Power Supply UPS 3 8 DC DC CONVERTER ref schematic diagram 02 039S The 12 14Vdc power from the battery is transformed and regulated to provide the 5Vdc and 12Vdc required by the processor bus and speech generator An automatic cut off feature disconnects the converter from the battery if its Voltage falls too low This prevents running the battery all the way down which would damage the battery and make re starting difficu
7. 4 2 TELEPHONE We recommend measured service with a non published number DTMF dialing called Touch Tone by Bell Tel is required for calling in to the controller but not for calling out So rotary dial service is ok if the appropriate instrument is mounted in the cabinet See drawing for mounting location inside cabinet A modular jack is required for connecting controller to telephone line in addition to connection for the telephone instrument These are included in the optional SE631A mounting pad Important Lightning protector must be properly grounded to electrically grounded conduit or ground rod where lines enter building Missing or inadequate ground voids all warranty 4 3 POWER REQUIREMENTS 120Vac power must be supplied from a 20 Amp circuit breaker not shared with loads other than this controller The breaker should be located conveniently near and marked so as to provide a safety disconnect for maintenance of the controller This circuit may require more capacity if several of the output loads draw full rated current see sect 4 4 4 4 OUTPUT LOAD REQUIREMENTS The rated capacity of each 120Vac output is 3 Amp continuous although they are fused at 5 Amp If the load current exceeds 3 Amp an intermediate buffer relay must be used Also the combined total of all outputs used must not exceed 80 of the supply breaker capacity this normally allows 16 Amp If several outputs are drawing at or near their rated current it may be n
8. LC2 LIGHTING CONTROLLER OPERATIONS amp MAINTENANCE MANUAL 2006 Dec LC2 OPERATIONS amp MAINTENANCE MANUAL CONTENTS 1 DESCRIPTION amp SPECIFICATIONS 1 1 General 1 2 Operation Modes 1 3 Timeout warnings 1 4 Mechanical Specs 1 5 Output 1 6 Power Requirements 1 7 Telephone Connection 1 8 Battery Operation 2 SET UP amp OPERATION 2 1 Initialization 2 2 Controller Set up LC2 Command Chart 2 3 Calling in by Telephone 2 4 In case of Trouble 3 THEORY OF OPERATION 3 1 General 3 2 Telephone System 3 3 Interface Board 3 4 CPU Board 3 5 I O Board 3 6 Speech Generator Board 3 7 Modular Relay Board 3 8 DC DC Converter 3 9 Power Supply Charger 4 INSTALLATION 4 1 Cabinet 4 2 Telephone 4 3 Power Requirements 4 4 Output Load Requirements 4 5 Output Wire Size amp length 4 6 Output Connections 4 7 Battery 4 8 Turn on 5 TROUBLE SHOOTING amp MAINTENANCE 5 1 General 5 2 Power Checks 5 3 Telephone Checks 5 4 Board Function Checks 5 5 Output Circuit Checks 5 6 Periodic Maintenance 6 APPENDICES A Circuit board interchangeability 10 11 12 13 14 15 06 12 LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 7 DRAWINGS 02 020S I O Board schematic diagram 02 029 Installation drawing 02 043 Panel wiring diagram 02 036S CPU Board schematic diagram 02 039S Power Converter schematic diagram 02 045S Telephone Interface Board schematic diagram LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 iii
9. certain but to be 100 sure plug in another telephone instrument using the same cord that normally goes to the controller and use it to check the line 13 LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 5 4 BOARD FUNCTION CHECKS Have one person call the controller and attempt to operate it while a second person observes the controller If the controller answers the call and the caller is able to enter the command mode and get indication of control by voice response and lamps lighting on the relay board proceed to section 5 5 The most expeditious way to correct problems within the electronic circuits is by replacing circuit boards with spares A faulty board may then be repaired and kept as a spare If the controller locks up the phone line won t answer or won t accept the security code try replacing the interface board then the cpu board If it accepts the code but won t control the zone indicators try replacing the cpu board then the I O board If the monitor speaker won t work replace the I O board CAUTION Before removing or inserting boards the computer power must be off This requires turning off the AC power AND disconnecting the storage battery 5 5 OUTPUT CIRCUITS CHECKS When the driver lamp for a particular zone is lit the relay output for that zone should be active The driver lamps are on the relay board The relays and their associated fuses are numbered 0 15 so zone 1 uses relay zone 2 uses relay 1 etc
10. d should the procedures here be used to locate the fault in the controller The following sections are in order of failure probability and should be worked in the order given These procedures are meant to locate a fault down to a replaceable module to get the controller back working again The use of an ac dc Volt Ohm meter VOM is required Repairs of printed circuit boards and power supply modules are beyond the scope of this section The location and function of boards in the cage is as below The boards are installed in these locations to accommodate their physical shape and make the cables fit correctly although they would plug into and work in any slot in the card cage 12 LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 A4 CPU Processor memory clock brain board A5 Interface Telephone line in out amp DTMF decode A6 T O board Relay rack drivers switches voice generator For LC2 W16 only a second I O board with drivers for pog relay rack is added and the above boards move left one space 5 2 POWER CHECKS 5 2 1 Mains Voltage checks CAUTION 120 Volts If the neon indicator on the speaker bracket is lighted proceed to the next paragraph If it is not check using the VOM for the presence of 120Vac relative to the neutral bus at the top of the panel at the fuseholder in the center of the panel If Voltage is not present at the top of the left fuse power is not reaching the controller If the Voltage is there but not
11. e the controller has three major functions as follows a Direct control The controller may be commanded to switch lights on or off instantly or read their current status either individually or all at once After executing a command the controller reads back the new status so the user knows his command was recognized and executed b Schedule The current on and off times of any particular field on any particular day may be read out and new times set to ten minute resolution Each field may have several on off cycles per day c Clock The current minute hour and day of week may be read out and set if necessary 1 3 TIMEOUT WARNINGS As an option signified by a W in the model no the LC2 can activate a horn or bell sounder ten minutes before a lighting zone is scheduled to turn off Two outputs are provided per zone one for the lighting contractor and one for the warning device LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 1 4 MECHANICAL The controller is housed in a weather proof steel NEMA 12 wall mount enclosure Wiring enters the box by conduit Space is allowed in the box for a wall mount telephone The door has a padlock hasp Outside dimensions are given below Model HWD cm HWD in LC2 W8 16 61x61x25 24x24x10 LC2 W16 76x61x25 30x24x10 LC2S 51x61x15 20x24x6 1 5 OUTPUTS Standard outputs are independent 120 Vac 3 Amp circuits which may be used to drive the coils of magnetic power contactor
12. e charging Voltage per section 5 2 2 14 LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 APPENDIX A Circuit Board Interchangeability Configuration codes for ROMs dated 2004 and later are changed for more hardware variations Input Output Speech Board 02 020 x V O Board Controllers manufactured 1986 mid 93 used the basic 0 board with a Speech Technology ST recorded speech generator 93 98 controllers used a 1 bd with an RC Systems RC true speech synthesizer Both these versions used two wire audio connection to the telephone bd Starting in late 98 controllers use a 2 bd with three wire audio output for the new 02 041 telephone bd The 2 bd can be substituted for the 1 bd if the dummy pin is removed from the teleph bd connector allowing it to fit on the 2 three pin connector Speaker volume will increase 6dB Telephone Interface Board Controllers mfd 1986 89 used a Conway board Those mfd 90 98 used an 02 037 1 modem bd modified Micro Aide C80 0029B with a two wire audio cable From late 98 03 the 02 041 1 modem bd mod C80 0064 with a three wire cable was used Starting in 04 the 02 045 1 modem bd C80 0029F also with 3 wire cable is used Central Processing Unit CPU Board 02 036 All LC2 controllers have used the same cpu bd except that the operating program burned into the Read Only Memory ROM has been changed for each hardware change listed above and varies for controller options The plug i
13. ecessary to increase the supply capacity up to 30 Amp maximum 4 5 OUTPUT WIRE SIZE amp LENGTH Power contactors or other loads are located separately from the controller and connected through two wires for each contactor one for the hot wire and one for the return to neutral in the controller cabinet The wire size based on the maximum load current of three Amperes must be a minimum of 18 ga If the loads are separated from the controller the wire size may need to be larger to prevent excessive Voltage drop 5V max to the load The following table gives maximum one way lengths from the controller to load for several wire sizes allowing for drop in both the hot wire and return 18 ga 39m 128 ft 16 ga 62m 200 ft 14 ga 99m 324 ft 12 ga 157m 515 ft 10 ga 250m 820 ft Loads located further from the controller may be connected with low Voltage telephone type wire and driven by a 20 mA current loop and buffer relay Depending on the cost of the wire this may be an attractive alternative at shorter distances as well Contact Theta Labs for details 11 LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 4 6 OUTPUT CONNECTIONS For each lighting zone the LC2 provides a lighting output and for W models an optional warning horn output The warning activates ten minutes before the lights go out for five seconds duration Some unused outputs may be used as inputs for monitoring lamp current outdoor temperature soil moisture
14. ering commands The commands will stack and the read back will continue until all commands have been acknowledged In some cases such as the main menu where the spoken text can become verbose entering a new selection will cancel the spoken read out and proceed directly to the new selection Thus entering the main menu and leaving again via valid function selection will cancel any speech in progress At the end of a command entry session terminate the call from the main menu by entering LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 c Direct Control Function This is selection 1 from the main menu After hearing the menu identification Direct Control Function you may enter commands Enter them exactly as they appear in the direct control example above using the numbered push buttons to enter the zone number and the button for ON button for OFF or for status read only Immediately after each valid or the controller will read out the new status Selecting the non existent zone 9 means all zones d Scheduling Function This is selection 2 from the main menu This function works somewhat like an electro mechanical time clock analogous to the on and off tabs clipped to the time clock wheel the LC2 has time slots at ten minute intervals where on and off commands may be placed Every ten minutes the processor examines the current slot and e
15. ing by the cpu board 3 4 CENTRAL PROCESSOR UNIT BOARD ref schematic diagram 02 036S The brains of the controller are in the microprocessor and stored programs on this board Sufficient scratch pad memory is provided to hold the week long schedule and current status for all lighting zones An integrated circuit clock calendar and precision oscillator provide the timing function An on board battery maintains the clock calendar and scratch pad memory saving the time date and schedule even if the UPS main battery runs down 3 5 INPUT OUTPUT BOARD s ref schematic diagram 02 020S The security code and valid zone switches are mounted here and appear as input ports for the cpu to read An output port allows the cpu to drive the Speech Generator which is mounted piggy back onto this board An audio power amplifier boosts the telephone line audio sufficiently to drive the monitor speaker Output ports are provided here for the cpu to drive the lighting and warning horn relays on the Modular Relay Board which connects to its I O board through a wide ribbon cable On the LC2 W8 one I O board drives one relay board with the lighting relays on the first half 0 7 and the warning relays on the second 8 15 The LC2 16 has one I O and one relay board for sixteen lighting relays The LC2 W16 has two each of the I O and relay boards The main I O board drives the top relay board for the lighting and a second I O board drives the lower warning relay
16. lt If the converter disconnects because of low Voltage it will not re start unless the charger is on thus preventing false starts from battery voltage rebound when the load is removed 3 9 POWER SUPPLY CHARGER ref schematic diagram 02 040 120Vac power supplied to the controller through a fuse is converted to approx 14Vdc to maintain a full charge in the storage battery and provide operating power for the electronics and output relays The actual Voltage is determined by a temperature compensating circuit using a sensor mounted in the de de converter which adjusts the charging Voltage to match the requirements of the storage battery The output relay circuits are diode isolated from the battery and essential electronics so that when the mains power is off the battery is not required to carry the substantial load of the relays 4 INSTALLATION ref Installation Dwg 02 029 4 1 CABINET Mount cabinet at eye level per drawing using 9 5mm 3 8 bolts Nuts and washer for mounting the controller panel are supplied with the cabinet For indoor installations allow at least 86cm 34 door opening clearance measured from mounting wall Locate cabinet for easy access to telephone and power line conduits A terminal strip is provided on the panel for input output and neutral 10 12 AWG wiring Outdoor installation may require special mounting brackets contact Theta Labs for details 10 LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12
17. n ROM is marked with a configuration code and revision date ROM Configuration Code Product gt LC2 x x x x n lt no of octads zones 8 standard NNW Nun Warnings D demonstrator A N R RCI speech gen M modem l S Speech Tech B 02 037 1 modem bd C 02 041 1 modem bd D 02 045 1 modem bd Prior to 98 C referred to Conway bd no longer supported Example Board Combinations 8 zone shown Mfd new PROM lt 04PROM Tel bd VO bd change 86 89 n a LC2WCS08 Conway 02 020 0 90 93 LC2 BSW1 LC2W S08 02 037 1 02 020 0 14k modem 93 98 LC2 BRW1 LC2W R08 02 037 1 02 020 1 RC speech 98 03 LC2 CRW1 LC2WCRO8 02 041 1 02 020 2 56k modem 04 pres LC2 DRW1 n a 02 045 1 02 020 2 2400 modem 15 LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 Number of Zones Controller versions with warning horn outputs require two relays per zone only one relay is required for lighting alone The smallest LC2 panel available has sixteen relays It can be used for either an eight zone controller with warnings LC2Wxx08 or a sixteen zone controller without warnings LC2 xx16 16
18. o 555 4321 security code 37 8 zone commands no 3 ON no 6 OFF no 7 ON Note Active zones may be 1 8 Zone 9 is all zones at once b Getting in The following procedures assume that operator technique is good and that the telephone system and controller hardware are working properly If you don t get the expected response at the proper time see section 2 3 In case of trouble The controller has two modes of operation SECURITY and COMMAND When you call the controller it will answer with a Hello It is now in Security Mode and you have six seconds to enter the security code with the telephone s push buttons Press the buttons firmly and allow a slight pause between tones The time allowed is plenty for deliberate accurate entry if no time is wasted If the code is entered incorrectly the controller will hang up If the code is correct it will give the day and time before switching to Command Mode The purpose of this is to provide a continual check on the accuracy of the clock Make a habit of listening to it and ensure that it has the right day and time The controller will enter Command Mode at the main menu where you will be invited to select one of the three major functions Direct Control Schedule or Clock After entering this mode the controller will time out and disconnect if no buttons are pushed for fifty seconds In most cases it is not necessary to wait until the controller stops talking before ent
19. on normal mains power After the main battery is discharged normal operation ceases but the clock and schedule are maintained for a month or more by a non rechargeable battery on the cpu board If power is restored after the main battery is discharged the lights that are on may not match the schedule LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 2 SET UP amp OPERATION 2 1 INITIALIZATION After initial installation or anytime the battery on the cpu board is disconnected the clock and memory must be initialized When the cpu battery is disconnected a bridge clip will be on one pin only of the plug adjacent to the battery Connect the cpu battery by placing the clip on both pins Call in to the controller using procedures explained in 2 3 below then proceed to the clock function and set the day and time per sect 2 3e Go to the schedule function and clear the time slot commands for all seven days and all zones in use per sect 2 3d Go to the direct function and turn off all zones per sect 2 3c 2 2 CONTROLLER SET UP The setting of the security code and the zones that are in use valid is done at the controller on the I O circuit board the one with the wide ribbon cable The security code must be four digits Each digit may be any of the twelve buttons on the standard telephone dial The code is set into four small rotary switches on the front edge of the board with a small 3mm 1 8 screwdriver The order of the four digits is the
20. relay modules 5 Ampere Pico fuses by Littelfuse are required LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 3 THEORY OF OPERATION TAT Vo High 7 N Volts Relays Voice Voice Indicators Fuses Power Gen faa Contactor 11 a4 A5 A6 Telephone CPU 1 0 Zone 1 Interface Board Board Typical of 8 Telephone Board Ls m ae System Clock Relay DTMF Schedule Divers D Warning Decode Switches Hom q Local N 15 Instrument LC 2 W8 Figure 3 1 LC2 Block Diagram 3 1 GENERAL The purpose of this section is to give someone sufficient understanding of the LC2 so that if it fails to function they can intelligently use the trouble shooting procedures The flow of control from the caller s telephone instrument to the field lights is linear ie it progresses from one point to the next without looping back or diverting This is the easiest type of control to analyze one just follows the command down the path until it stops To preserve the schedule and time keeping function through electrical power outages the LC2 has an un interruptible power supply UPS consisting of a storage battery a de dc converter which converts the battery power to the Voltage levels necessary to operate the LC2 and a charger which supplies power and maintains the ba
21. rn SCHEDULE FUNCTION FOR day of week Od Change to Day d z0 Zone z Schedule for Day 9zhhms Set Schedule for Zone z 9z90 Cancel Zone z All Day 9990 Cancel All Zones All Day 00 Return NOTES z ZONE NUMBER Must be a valid zone actually in use as determined by switches in the controller For 8 zone controller z is in range 1 8 For larger models z is two digit number in range 11 18 21 28 etc Digits 0 amp 9 are not used d DAY OF WEEK 1 Sunday 2 Monday 3 Tuesday 4 Wednesday 5 Thursday 6 Friday 7 Saturday hhm TIME First three digits of 24 hour time giving ten minute resolution Some examples 12 30 am 24 hr time 0030 hhm 003 9 20 am 0920 hhm 092 12 10 pm 1210 hhm 121 7 40 pm 1940 hhm 194 11 10 pm 2310 hhm 231 s SETTING for turn on for turn off 0 for cancel LC2 COMMAND CHART LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 2 3 CALLING IN BY TELEPHONE ref Command Chart a Preparation Before calling the controller have the phone number security code and commands to be entered written down and the referenced Command Chart in front of you The controller allows a few seconds for each entry there is plenty of time to enter the commands but not enough time to fumble around and look things up For example if it were desired to go to a certain controller and turn the lights of zone 6 off and those of zones 3 and 7 on the following note should be prepared Direct Control Example phone n
22. s warning horns or other loads The actual switching of heavy loads is done by contactors in separate cabinets not part of this control which may be separated by some distance see section 4 5 Optional switches on the panel or on the outside of the controller allow local control for maintenance Optional 20mA dc outputs with remote buffer relays allow separation by greater distances 1 6 POWER REQUIREMENTS 120 Vac 12 Amp plus the power passed through to drive the loads 1 7 TELEPHONE CONNECTION The recommended telephone service is private unlisted and dedicated to the controller Few outgoing calls are made so measured service is satisfactory A wall telephone is installed in the controller for maintenance and convenience only it is not necessary for operation of the controller 1 8 BATTERY OPERATION The LC2 is double battery backed with a rechargeable main battery and a cpu battery If the electric mains power fails the LC2 will continue to operate for 24 hours minimum if the main battery is fully charged During this period it will answer the telephone giving a power fail warning and allow all the normal schedule setting and direct control functions The commanded status of the lights will be retained and updated per the schedule although of course the lights themselves will not operate If power is restored during this period no resetting or adjustment of any kind is required Full battery charge requires 48 hours of operation
23. s to be set enter and the four digit 24 hour time of the next minute coming up The clock will then hold waiting for you to enter another to start the clock at the new time To check or set the day of week enter 2 You will hear the current day setting If it is ok enter and no change will be made If it needs to be set enter the number of the correct day as shown in figure 2 1 LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 2 4 IN CASE OF TROUBLE When controller does not respond correctly the fault will be in one of the following categories listed by probability 1 Operator technique 2 Telephone problems 3 Electrical power circuit breakers fuses 4 Controller malfunction The procedures that follow grouped by symptom show how to determine which category to address If a problem is proven to be in the controller by using these procedures to eliminate the first three categories refer to section 5 a Controller won t answer Have someone go to the controller and make voice phone calls both ways to ensure that the telephone line is working It must ring at the controller If there is trouble unplug the controller cord from the telephone line wait a few minutes for the line to clear and try again If the telephone line is out of order call telephone company maintenance Make sure that the controller has power indicated by the neon pilot light A fuse holder in the center of the panel holds a li
24. ttery when normal mains power is available 3 2 TELEPHONE SYSTEM This critical link passes information in the form of tone and voice signals between the caller and the controller s telephone interface board Most control failures are caused by trouble in this part of the path 3 3 INTERFACE BOARD ref schematic diagram 02 045S This board transformer couples the floating telephone line to the controller s ground referenced audio and digital logic circuits Opto couplers detect the presence of ringing signal or loop current and make these available to be read by the cpu Control signals from the cpu board activate the line relay which seizes the telephone line Audio from the line is coupled to a tone decoder on the interface board and to the speech generator and monitor amplifier on the I O board LC2 OPERATIONS amp MAINTENANCE MANUAL 06 12 Numbers entered on the telephone pushbutton pad are encoded by the pad into a dual tone multi frequency DTMF scheme Each of the three columns and each of the four rows has its own discrete tone frequency When one button is pressed it generates the corresponding row and column tones so two of the possible seven frequencies are active These tones then pass through the telephone network like voice or other audio information The DTMF decoder detects the presence of these tones and decodes them back to the original number information or rather re codes them into the binary number system for read
25. ve fuse and a spare If you use the spare replace it b Controller answers but hangs up after the 6 second security mode Ensure that the code being used matches the code set in the controller see sect 2 1 The four digits of the security code and only those four must be entered This problem is commonly caused by faulty push button tones as received at the controller The buttons must be held firmly down at least 1 10 second with a 1 10 second pause between entries Changing to a different telephone might determine if the sending telephone instrument is at fault It is useful to have a second person at the controller turn on the monitor speaker and listen to the received tones c Controller answers accepts security code and gives time and menu prompt but won t accept commands The tone entry timing must be the same as for security mode Commands must not begin until after the prompt starts Ensure that the zone numbers are for valid zones d Controller accepts commands responds appropriately but lights don t come on First check that manual switches if they are installed are in the AUTO position Then have a second person at the controller verify that the commands are accepted by observing that the correct indicator is lighted on the relay board Refer to section 4 6 for the correlation of indicator lamps to zones If the lamps are switching correctly check the output fuses These are sub miniature fuses plugged in beside the
26. xecutes the command there if any Continuing the analogy there are seven of these time clocks one for each day of the week Upon entering this function the LC2 will announce the day selected for examination or setting All subsequent operations refer to this day until the day is changed by entering and a number for the new day 1 for Sunday 2 for Monday etc You may hear the entire schedule ie a list of time slots that have commands in them for any particular zone for the selected day by entering the zone number followed by a 8 You may enter a command into or clear it from a time slot by entering a 9 the zone number the first three digits of the time in the 24 hour system and finally the action desired for ON for OFF or to cancel an existing command You may clear all the time slot commands in the day for a particular zone by entering 9 the zone no then 9 To clear all the zones for the day enter 999 These are faster ways of clearing out old schedules than slot by slot e Clock Maintenance Function This is selection 3 from the main menu to check or set the clock calendar After any check or change the latest setting will be given to you by the LC2 even if it is a repeat to verify that it is correct To check or set the time enter 1 You will hear the current clock setting If it is ok enter and no change will be made If it need
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