Carrier DATACOLD 500 T/R - Enclosure E: Wiring Diagrams; Wiring: Connector 1 (Power & Outputs); Wiring: Connector 3 (Digital Inputs); Wiring: Connector 4 (Temperature Inputs)

Enclosure E Wiring diagrams
CONNECTOR 1
POWER SUPPLY & DIGITAL OUTPUTS
1 = POWER SUPPLY (+)
2 = POWER NEGATIVE (-)
3 = DISPLAY BACKLIGHT (+)
4 = ALARM O/P TEMP
5 = ALARM O/P DIGIT
battery
Ignition key (+) (display backlight)
WARNING : NEVER CONNECT DISPLAY BACKLIGHT
DIRECTLY TO THE BATTERY
CONNECTOR 3
DIGITAL INPUTS (configuration example)
1 = SUPPLY POSITIVE (+)
2 = REFRIGERATION (-)
3 = SUPPLY POSITIVE (+)
4 = BACK DOOR (-)
5 = SUPPLY POSITIVE (+)
6 = DEFROST RELAY (-)
7 = SUPPLY POSITIVE (+)
8 = SIDE DOOR (-)
relay
door switch
defrost relay
door switch
CONNECTOR 4
TEMPERATURE INPUTS
1 = TEMPERATURE 1 (-)
2 = TEMPERATURE 1 (+)
3 = TEMPERATURE 2 (-)
4 = TEMPERATURE 2 (+)
5 = TEMPERATURE 3 (-)
6 = TEMPERATURE 3 (+)
7 = TEMPERATURE 4 (-)
8 = TEMPERATURE 4 (+)
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