Инструкция на Контроллеры Lennox серии CLIMATIC для чиллеров бренда Lennox

CLIMATIC

USER MANUAL CHILLERS V 2.2

IDLE FUNCTION

Function The idle function enables the machine to be stopped during certain times of the day or certain days of the week. Outside the idle period, the refrigeration unit operates normally, in accordance with its instructions. Description Idle time is defined by 4 instructions (all included in the…

CONTROL OF EVAPORATOR PUMPS

Function To control the flow of refrigerant in the evaporator Description There are two possible types of regulation, defined by the variable C2POMPE. ¶ If C2POMPE = 0, the CLIMATIC controls one pump or none. · If C2POMPE = 1, the CLIMATIC controls two pumps in normal / standby mode. The user…

COLD THERMOSTAT

Function To bring the temperature of the cooled fluid as close as possible to the set point by adapting the number of compressors in service to the heat load in operation. Description The thermostat THER controls the switching on and off of compressors. It is determined in accordance with the…

HOT THERMOSTAT

Function To bring the temperature of the heated fluid as close as possible to the set point by adapting the number of compressors in service to the heat load in operation. Description The thermostat THER controls the switching on and off of compressors. It is determined in accordance with the…

COLD REGULATION WITH GRADIENT

Function To adapt the regulation set point to the outside air temperature, for improved counterbalancing of solar heat pick-up by the premises to be air conditioned. Description Le calcul du point de consigne de régulation CONSREG se fait en fonction des paramètres suivants : TEA CONSA CONSAM TEGI…

HOT REGULATION WITH GRADIENT

Function To adapt the regulation set point to the outside air temperature for improved counterbalancing of heat loss to the outside from the premises to be heated. Description The regulation set point CONSREG is calculated according to the following parameters : ó Outside air temperature (°C) ó 1st…

CONTROL OF COMPRESSORS

Function The compressors are started up and stopped in the order which avoids the anti-short cycle, as far as possible, and evens out their operating times.. Description F Start-up and stopping order for compressors This order is determined by a “FIFO” (first in, first out) rule. This function…

CONTROL OF CAPACITY REDUCTIONS FOR HOT REGULATION

Function To adjust the hot water output temperature as closely as possible to the set point by adapting compressor capacity. Description Capacity reduction valves are only available on semi-hermetic reciprocating or screw compressors. On a machine with several compressors, only the last one started…

CONTROL OF CAPACITY REDUCTIONS FOR HOT REGULATION

Function To adjust the hot water output temperature as closely as possible to the set point by adapting compressor capacity. Description Capacity reduction valves are only available on semi-hermetic reciprocating or screw compressors. On a machine with several compressors, only the last one started…

CONTROL OF ELECTRONIC EXPANSION VALVE

Function To control correct filling of the evaporator with refrigerant in order to obtain highest efficiency, whilst protecting the compressor against slugging. Description The expansion valve is controlled by Proportional + Integral + Derivative logic. The ideal theoretical opening RDETAn of the…

CONTROL OF CONDENSER FANS

Function To maintain as stable a condensation pressure as possible without fans cutting in too frequently. Description The CLIMATIC calculates the number of ventilation stages THVn required for the proper functioning of each refrigeration circuit. THVn depends on the following parameters : ó…

SPECIFIC VALVES FOR SCREW COMPRESSORS

Liquid injection valve using intermediate suction Function To reduce the compressor discharge temperature thereby improving cooling on the compressor motor. Description The liquid injection valve INJLmn is open if: . the compressor COMPmn is in operation and . the discharge temperature TREFmn is…

OPTIONS

CONTENTS Page FREE-COOLING 16 HEAT RECOVERY 18 MANAGEMENT OF UNITS IN PARALLEL 19 V2.2-00 15

FREE-COOLING

Function To ensure refrigeration whilst optimising the use of free-cooling, thus limiting electrical consumption to a minimum. Description F Free-cooling outline diagram TEEG V3VFC TEEGFC free-cooling fan TEA evaporator free-cooling unit TSEG TEEGFC TEEG TSEG TEA V3VFC ó Temperature of chilled water…

FREE-COOLING (CONT’D)

TEEG / TEEGFC CONSREG+0,5°C CONSREG TEEGFC CONSREG-0,5°C TEEG THERFC 0 3 min 3 min min 2 2 temps 1 0 The thermostat is incremented by one stage if TEEG remains greater than CONSREG+0.5°C for over 3 minutes. As long as this condition on TEEG is satisfied, THERFC continues to be incremented by one…

HEAT RECOVERY

Function On air units with heat recovery condenser, to maintain the hot water output temperature as close as possible to the instruction, whilst adapting the air condenser capacity to the excess thermal capacity to be discharged. Description F Outline diagram of heat recovery process Heat recovery…

MANAGEMENT OF UNITS IN PARALLEL

Function To provide staging of units in order to adjust the temperature of the cooled fluid as closely as possible to the set point. Description ¶ Management of the installation by an independent CPU card (recommended configuration) General regulation is by a KP01 independent of those which directly…

REGULATION OF UNITS IN PARALLEL

Units start-up With THERG 0ð1 1ð2 2ð3 3ð4 CONSEG = 6°C ENCLG = 1,5°C DIFETG = 1,5°C Notes : TBAL (°C) 7,5 9 10,5 12 Unit stop THERG 1ð0 2ð1 3ð2 4ð3 TBAL (°C) 6 7,5 9 10,5 THERG can only be incremented by a stage if it has not increased for a time defined using instructions TPTHERM. THERG can only be…

REGULATION OF UNITS IN PARALLEL

· Installation management by chaining of unit CPU's The card responsible for general regulation is that for unit G1 (card number = 0). Dialogue between cards is by chaining. In order to ensure that the machines do not all start up and stop simultaneously, their set points are staggered. The…

TEMPERATURES OF CHILLED WATER OUTSIDE RANGE

Logical variable : DTEG Incident codes KP02 : 1 KP07 icon : Description The input or output chilled water temperature measured by the sensor is outside the authorised range: Water without glycol TEEG < TEGI ou TEEG > 65°C TSEG < TEGI ou TSEG > 65°C Water with glycol (maxi 30% glycol) TEEG < -15°C ou…

HOT WATER TEMPERATURES OUTSIDE RANGE

Logical variable : DTEC Incident codes KP02 : 2 KP07 icon : Description The input or output temperature of hot water measured by the sensor is outside the authorised range : TEEC <-27°C or TEEC> TECS TSEC <-27°C or TSEC> TECS With : TEEC TSEC TECS ó Hot water input temperature (°C) ó Hot water…

INSUFFICIENT FLOW OF CHILLED WATER

Logical variable : DFSE Incident codes KP02 : 3 KP07 icon : Description The “flow switch” FSE detects an insufficient flow in the evaporator for over 2 seconds. Action F Immediate machine halt. F The fault is displayed on the screen. F The remote fault report is delayed for 6 minutes Resetting The…

INSUFFICIENT FLOW OF HOT WATER

Logical variable : DFSEC Incident codes KP02 : 4 KP07 icon : Description The “flow switch” FSC detects insufficient flow insufficient in the condenser for over 3 seconds Action F Immediate machine halt. F The fault is displayed on the screen. F The remote fault report is delayed for 6 minutes.…

ABSENCE OF 230V SUPPLY WITH BACKUP

Logical variable : DPT230V Incident codes KP02 : 7 KP07 icon : Description The supply presence voltage relay is tripped (PT230V = 0). The compressor casing resistors and the anti-freeze resistors on the hydraulic circuit are no longer fed. Action F Immediate machine halt. F The fault is displayed on…

INCORRECT SEQUENCE OF PHASES

Logical variable : DPHASE Incident codes KP02 : 9 KP07 icon : Description The phase controller is tripped (PHASE = 0). It detects an inversion or a bad phase coupling. Action F Immediate machine halt. F The fault is displayed on the screen. F The remote fault report is delayed for 6 minutes.…

LOW PRESSURE INSUFFICIENT

Logical variable : DBPn Incident codes KP02 : n1 KP07 icon : Description Case ¶ : No compressor on circuit n is working. The liquid valve has been open for 2 minutes, but low pressure remains lower than safety limits. Case · : A compressor on circuit n has been operating for more than 2 minutes. The…

EVAPORATOR FREEZING

Logical variable : DGELn Incident codes KP02 : n2 KP07 icon : Description This fault is only processed on machines cooling water without solution which does not freeze at 0°C (glycol or brine) Case ¶ : Tubular exchangers A compressor m on circuit n has been operating for at least 1 minute and the…

INSUFFICIENT SUPERHEATING

Logical variable : DSURFn Incident codes KP02 : n4 KP07 icon : Description This fault is only processed on units fitted with electrical expansion valves. A compressor on circuit n has been operating for at least 2 minutes and one of the 2 following conditions remains satisfied for at least 2 minutes…

VACUUM SUCTION FAILURE

Logical variable : DPUMPDn Incident codes KP02 : n5 KP07 icon : Description For 2 minutes, a compressor on circuit n is in operation and the liquid solenoid is not connected, but low pressure is still below minimum. Action F Immediate halt of circuit n. F The fault is displayed on the screen. F The…

SENSOR OR DETECTOR FAULTS

Logical variable : DSONDEn Incident codes KP02 : n6 KP07 icon : Description One or more temperature sensors or pressure detectors installed on circuit n are either in short-circuit, broken or disconnected. Sensor or detector involved Suction temperature sensor Internal sensor on electronic expansion…

EXPANSION VALVE OPENING INCORRECT

Logical variable : DCDETn Incident codes KP02 : n7 KP07 icon : Description This fault is only processed on units equipped with electric expansion valves DANFOSS TQ type. No compressor on circuit n is working. A compressor start-up command has been issued and the expansion valve is in the pre-heat…

COMPRESSOR CUT-OUT SWITCH TRIPPED

Logical variable : DELECmn Incident codes KP02 : mn1 KP07 icon : Description The thermomagnetic cut-out switch on compressor mn is tripped (ELECmn = 0). Action F Immediate halt of compressor mn. F The fault is displayed on the screen. F The remote fault report is delayed for 6 minutes. Resetting…

OIL PRESSURE INSUFFICIENT

Logical variable : DHUILEmn Incident codes KP02 : mn2 KP07 icon : Description This fault only applies to semi-hermetic reciprocating compressors. The total time during which the oil pressostat on compressor mn POILmn remains tripped exceeds 90 seconds. The oil pressure is then insufficient for…

EXCESS HIGH TEMPERATURE

Logical variable : DHPmn Incident codes KP02 : mn5 KP07 icon : Description The high pressure safety cut-out on compressor mn PHPmn has tripped.. Action F Immediate halt of compressor mn. F The fault is displayed on the screen. F The remote fault report is delayed for 6 minutes. Resetting The first 2…

DISCHARGE TEMPERATURE TOO HIGH

Logical variable : DREFmn Incident codes KP02 : mn6 KP07 icon : Description The discharge temperature on compressor mn REFmn stays over 120°C for over 9 seconds. Action F Immediate halt of compressor mn. F The fault is displayed on the screen. F The remote fault report is delayed for 6 minutes…

INTERNAL PROTECTION TRIPPED

Logical variable : DPINTmn Incident codes KP02 : mn7 KP07 icon : Description F Semi-hermetic compressors (reciprocating and screw type) and scroll compressors: The thermal protection on the motor windings on mn PINTmn is tripped. F Hermetic reciprocating compressors: Compressor mn has been operating…

INTER-CPU DIALOGUE INTERRUPTED

Logical variable : DSLI Incident codes KP02 : 8 KP07 icon : Description The chaining link between 2 (or more) cards on the network is interrupted for over 15 seconds.. Action F Re-initialisation of cards (3 attempts). F The fault is displayed on the screen. Resetting Automatic resetting of the fault…

INSUFFICIENT FLOW ESTABLISHED BY THE PUMP

Logical variable : DSDEBk 81 (pump 1) Incident codes KP02 : 82 (pump 2) KP07 icon : Description Pump k supplying the evaporator has had the operational command for 20 seconds. The “flow switch” FSE detects insufficient flow in the exchanger for over 25 seconds. Action Case ¶ : The unit has one pump…

FAN CIRCUIT BREAKERS TRIPPED

Logical variable : DELECV Incident codes KP02 : 90 KP07 icon : Description One or more thermomagnetic circuit breakers protecting the air condenser fans are tripped. (ELECV = 0). Action F The fault is displayed on the screen. F The remote fault report is delayed for 6 minutes. Resetting The fault is…

PUMP CIRCUIT BREAKER TRIPPED

Logical variable : DELECPk 91 (pompe 1) Incident codes KP02 : 92 (pompe 2) KP07 icon : Description The thermomagnetic circuit breaker on pump k is tripped (ELECPk = 0). Action Case ¶ : Pump k is in service and the unit has only one pump (C2POMPE = 0). F Immediate halt of pump k F Immediate machine…

REMOTE INSTRUCTION UNDETECTED

Logical variable : DCONS Incident codes KP02 : 95 KP07 icon : Description The unit should be regulated to the water instruction sent remotely by the customer (SGLCONS = 1), but the signal received is incorrect (TCONS < -25°C). Action F The machine is not stopped and is regulated to its own water…

TEMPERATURE OF FREE-COOLING OUTSIDE RANGE

Logical variable : DSONDEFC Incident codes KP02 : 97 KP07 icon : Description The inlet chilled water temperature, which is measured by the sensor located on the collector (forward freecooling coils), is outside authorized range : TEEGFC < -15°C ou TEEGFC > 65°C Action F Immediate halt of…

DIALOGUE BETWEEN CPU AND KP07 INTERRUPTED

Logical variable : - Incident codes KP02 : - KP07 icon : Description After 3 attempts, the KP07 VDU has not succeeded in establishing a dialogue with at least one of the CPU cards connected to it. Action F Regular attempts to restore communication. F The fault is displayed on the screen. F The…

I. GENERAL PRESENTATION

The KP02 console is a man-machine interface consisting of a 6 digit display, 6 indicator lights and 5 keys. " General alarm " (flashing red) Spare indicators " On " indicator (green) INCREMENTATION KEY Digital screen DECREMENTATION KEY Variables mode indicator INSTRUCTIONS mode indicator VALUE KEY…

CONSOLE NUMERIQUE KP02

When a fault occurs on the machine, the red led "general alarm" flashes. If the user whishes to know the nature of the fault, he can consult the variable "breakdown" representative of the code "breakdown". II.5. Specific displays II.5.a. Application release When the console is switched on, the…

III.1. VARIABLES mode

Pressing on "A" displays the address of the variable currently being read. The address is incremented by pressing keys "A" and "+" simultaneously. The address is incremented slowly if "+" is pressed briefly, or faster if it is pressed continuously. The address is decremented in a similar manner…

CONSOLE NUMERIQUE KP02

Pressing key "V" displays the value of the selected data item. Note: If the user does not press "V", the value appears automatically after 1 minute. III.4. SET DATER mode This mode can be used to adjust the 6 dater elements : . hours and minutes ⇔ . the day of the month ⇔ . the day of the week ⇔ .…

KP07 VDU (VISUAL DISPLAY UNIT) CONSOLE

IV. GENERAL PRESENTATION The KP07 console is a man-machine interface with a black and white liquid crystal graphics screen, back-lit, with definition 240 x 128 pixels. It also has 2 indicator lights and 12 keys. LCD screen "General alarm indicator" (red) 7 SCREEN keys with variable functions "Power…

KP07 VDU (VISUAL DISPLAY UNIT) CONSOLE

I.1. Key allocation I.1.a. SCREEN keys These are the 7 keys located around the LCD screen : The function of these keys may vary from one screen to another, and is defined on the active screen by an icon. For keys "1", "2" "3" and "4", the icon is displayed above the key. For the other 3 keys "A"…

"Modification" mode offers the user the following main possibilities

• Selecting the number of the controller on which variables are to be displayed (where several KP01 cards are connected to the same KP07 console) • Setting instructions • Configuration of on/off switches on circuits. To exit from "modification" mode and return to the active screen, press…

V. GENERAL TREE STRUCTURE OF SCREENS

Summary Access to operating states of the circuits, machine and pumps Water temperature curve * * On/Off switches for circuits * Password Operating state Circuit 1 C2 C3 C4 Operating state of the unit Operating state – Chilled water pumps Access to settings Refrigeration circuit Access to circuit…

VI

VI. CONTENT OF SCREENS III.1. Summary Date and time Presence of a general alarm on the machine Number of controller in communication with display unit Temperature of chilled water input (or hot water for a PAC) Temperature of chilled water output (or hot water for a PAC) Water instruction The water…

III.3. Access to the different operating states

Presence of a general alarm on the machine Number of controller in communication with display unit This screen gives access to the operating states of the refrigeration circuits, pumps and machine. III.4. Operating states of refrigeration circuits Operating states of circuit compressors displayed…

III.5. Refrigeration diagrams

III.5.a. Groupes à condensation par air Discharge temperature on compressor no. 2 (if applicable) Condensation pressure Condensation temperature Discharge temperature on compressor no.1 Ambient air temperature Air intake temperature Evaporation temperature Temperature of chilled water output…

III.6. Tables of variables associated with refrigeration circuits

This screen gives access to the values of logic inputs, fault counters, TOR output and other variables describing the selected refrigeration circuit. Each variable is identified by its mnemonic. III.6.a. Logic inputs This screen shows the state of all the logic inputs associated with the circuit and…

III.6.c. TOR outputs and other variables

This screen shows the state of the of actuators which command circuit components other than the compressors, whose operation has already been described in operating states for circuits (see § III.4.). This screen also displays significant calculation variables for the circuit, such as the anti-short…

III.9. Tables of general variables

This screen gives access to the values of analogue inputs, logic inputs, TOR outputs, fault counters, and other variables relating to the entire machine (not related to a specific refrigeration circuit). Each variable is identified by its mnemonic. III.9.a. Analogue inputs This screen contains the…

III.9.c. TOR outputs

This screen displays the state of the actuators which control machine components (other than those already described in operating states for circuits and pumps). III.9.d. Fault counters Faults and fault counters associated with specific options appear on this screen. III.9.e. other variables This…

III.10. Fault log

The event log can be used, depending on the configuration chosen in the console application program, to record : • either the last 24 fault occurrences • or the last 24 fault occurrences and clearances . The log displayed relates only to the controller which is currently in communication with the…

After pressing key

, the screen shows : III.12. Instructions Access to the different setting instructions is protected by a password (a modifiable variable consisting of 5 figures). This is entered via "modification" mode. Entry of the password, followed by validation, activates key "A": Pressing key "A" displays the…

All the instructions which follow can be adjusted via the "modification" mode

III.12.a. Water temperature instructions The screen shown below corresponds to the case of a liquid cooler. There is a similar screen for heat pumps. Chilled water setting A Chilled water setting B Minimum chilled water temperature Temperature difference on chilled water (T input - T output) Minimum…

III.12.c. Idle time clocks

Heure End time Daily idle period End day Wweekly idle period Start time Daily idle period Start day Weekly idle period Day of the week Date and hour variables can be changed, as any instruction showed on this screen. III.12.d. Parameters for regulation with gradient on air temperature (option) The…

VII. GLOSSARY OF ICONS

Icons are classed in 6 categories: 1. Keys 2. Screen headings 3. Identification of components 4. Operating states 5. Faults 6. On / off settings and instructions IV.1. Keys Access to the temperature curve for water output from machine. Access to operating states for refrigeration circuits, pumps and…

Access to fault log

Access to the different tables of variables. Access to analogue inputs (other than those shown on refrigeration diagrams). Access to logic inputs. Access to TOR outputs. Access to TOR outputs and other variables associated with the selected refrigeration circuit. Access to miscellaneous variables.…

Operating state of refrigeration circuit no.1

Operating state of refrigeration circuit no.2. Operating state of refrigeration circuit no.3. Operating state of refrigeration circuit no.4. Operating state of chilled water pumps. Operating state of hot water pumps. Operating state of machine. Fault log. Access to the different tables of variables.…

Parameters for regulation with gradient on air temperature

Idle timers (day / night). IV.3. Identification of components Machine. Refrigeration circuit no. 1 Refrigeration circuit no. 2 Refrigeration circuit no. 3 Refrigeration circuit no. 4 Compressor or pump no. 1 (in " circuits or pumps " operating states respectively). Compressor or pump no. 2 (in "…

Hot water pump no. 1

Hot water pump no. 2. IV.4. Operating states Stages required for chilled water regulation. Stages required for hot water regulation. Compressor in operation (representation on refrigeration diagram). Compressor in operation. Compressor in operation at full capacity. Compressor in operation at…

Compressor stopped by refrigeration circuit on/off

Compressor stopped by remote on / off command to machine. Pump in operation. Pump stopped. IV.5. Faults On the unit, presence of a machine, circuit compressor or miscellaneous fault IV.5.a. General machine faults Chilled water temperature outside authorised range Hot water temperature outside…

Temperature sensors or pressure detectors faulty

Incorrect opening of expansion valve. IV.5.c. Compressor faults Tripping of thermomagnetic circuit breaker for compressor. Insufficient oil pressure. Excess high pressure. Discharge temperature too high. Tripping of internal protection for compressor. IV.5.d. Miscellaneous faults Dialogue…

IV.6. On / off settings and instructions

On / off refrigeration circuit no. 1. On / off refrigeration circuit no. 2. On / off refrigeration circuit no. 3. On / off refrigeration circuit no. 4. On/Off pump no. 1. On/Off pump no. 2. First chilled water setting (CONSEA). Second chilled water setting (CONSEB). Active chilled water setting…

¶ General presentation

The CLIMATIC consists of a main KP01 microcontroller card, with 8 analogue inputs, 8 logic inputs and 8 logic outputs in its standard version. Two analogue outputs and a +18Vdc supply are also available as an option. F Logic inputs are linked to hard contacts. F Analogue inputs are linked to…

¸ Supply

A single transformer provides the power supply to the Climatic and its extensions : 12V/6VA for supply to KP07VDU console 230Vac 12V/7.2VA for isolated supply to extensions KP03/KP04/KP01 12V/50VA for KP01 supply ¹ Switches F SW2,SW3 : By default, the card is configured in If there is a link between…

» Card diagram

LED's dialogue presence COM B and COM C Ribbon cable connecting the two cards LED power on Optional KP10 card +18Vdc supply 4AT fuse Link PC/GTC or VDU console COM B Configuration of analogue input type Card no-1è Digital console link COM C Bus I²C Card n+1ç 12 Vac supply 8 analogue inputs µP 68HC16…

Key : J1 to J8: J10: J11: J13: J14, J15: J17, J21: J18, J22: J24: J25: J26: PT1, PT2: PT3: PT6: PT4: PT5: PT7: PT9: PT10: PT11, PT13: PT12: SW1: SW2, SW3: SW4: SW5: 3 point removable pin connectors, pitch 5.08 for 8 changeover relays 3 point removable pin connectors, pitch 5.08 for 12Vac supply and…

EXTENSION 16 ENTREES LOGIQUES Ø KP03

The KP03 card is used for processing the 16 logic inputs (10V/10mA). It is possible to connect up to 3 extensions to a KP01 card, to attain a maximum capacity of 8 +3 x 16 = 56 logic inputs. The state of each input is shown by an LED. Addressing configuration I²C Bus Logic inputs 1 to 16 (+) common…

EXTENSION ANALOGUE OUTPUT Ø KP04

The KP04 card provides, via a digital/analogue converter, analogue output (0-10V), resolution 39mV. It is possible to connect up to 4 KP04 extensions to the same CPU, which offers a maximum capacity of 2 + 4 x 1 = 6 analogue outputs. The card is calibrated by adjusting the potentiometer P1.…

EXTENSION 8 ENTREES ANALOGIQUES Ø KP05

The KP05 card is used for the acquisition of 8 analogue inputs. These inputs may connect either a CTN temperature sensor (10KΩ at 25°C), or a conventional 0-20mA detector (via the +18Vdc supply). The type of element connected is configured using switch SW1. It is possible to connect up to 3 KP05…

EXTENSION ALIMENTATION +18VDC Ø KP10

l Presentation : The KP10 extension is presented in the form of a small plug-in card positioned on the main KP01unit and designed to supply detectors type 0-20mA. l Precautions : When installing the module, take care to comply with the circuit orientation as printed on the main KP01 unit. Location…

CARTE FILLE SORTIE ANALOGIQUE Ø KP11

l Presentation : The KP11 extension is presented in the form of a small plug-in card positioned on the main KP01unit. It supplies analogue voltage 0-10Vdc/10mA A CPU may receive 2 cards KP11 at the most. l Precautions : When installing the module, take care to comply with the circuit orientation as…

¶ Internal wiring Keyboard ribbon cable Cable earth connection Earth ferrule Keyboard earth connection · External wiring + - TD RD V2.2-00 89

¶ Presentation Configuration switches for external / internal supply Battery EPROM Command switch for back-lighting 1AT fuse µP 68HC16 Screen contrast setting by default + - TD RD 12Vac supply Keyboard connector LED presence of dialogue Front face Connection for shield by earth ferrule V2.2-00 90

Key : LD1: PT1, PT2: PT3: PT4: PT5: PT6: PT8: PT9: SW1, SW2: SW3: Note : LED presence of dialogue 12Vac Vref Vcc Gnd VLcd Reset Power Fail Configuration switches internal/external supply On/off switch for back-lighting on display unit The cable linking the display unit to the main unit must be…

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