TE Technology TC-24-12 - Manual (Page 13)

13
Temperature status LED’s:
ƒ BLUE LED (CR1) on when the control sensor is more than 1 °C below Set
Temperature.
ƒ GREEN LED (CR2) is on when the control sensor is within +/- 1 °C of Set
Temperature.
ƒ RED LED (CR3) is on when the control sensor is more than 1 °C above Set
Temperature.
Alarm Output connector JP2:
ƒ JP2-1 DC input + (same voltage potential as JP3-1)
ƒ JP2-2 DC input + (same voltage potential as JP3-1)
ƒ JP2-3 OPEN DRAIN (on during control sensor or over-temperature fault
condition).
ƒ JP2-4 OPEN DRAIN (on during control sensor or over-temperature fault
condition).
Input/Output connector JP3:
ƒ JP3-1 DC input + (10.8 volts DC to 26.4 volts DC, 12 amps maximum)
ƒ JP3-2 DC input –
ƒ JP3-3 + TE power output (+ when cooling required)
ƒ JP3-4 - TE power output (- when cooling required)
ƒ JP3-5 fault sensor 1 common
ƒ JP3-6 fault sensor 1 input
ƒ JP3-7 fault sensor 2 input
ƒ JP3-8 fault sensor 2 common
ƒ JP3-9 control sensor common
ƒ JP3-10 control sensor input
When one or more external fans are used on the thermoelectric assembly, these should be
wired directly to a fixed voltage power supply for constant operation. If the controller is
being used with one of our standard cooling assemblies that contains a terminal strip, the
jumpers connecting the fan terminals to the thermoelectric module wires should be
removed.