RUN INPUT
MAIN (LINE) CONTACTOR
0V
+V
The
WARNING INPUT (OPTIONAL)
The
An alarm that stops the compressor, and/or prevents the compressor from running is determined from the “run” and “ready” inputs. Warning detection is optional and is not a requirement.
Alarm Lamp
ALARM RUN READY
C04
Run Signal Circuit
The RUN input will accept 12V to 250V AC (50/60Hz) only. DC cannot be used.
Do not connect a voltage greater than 250V to this input.
12V to 250Vac must be applied to the “run” terminals when the compressor motor is running.
+V
0V
This input can be connected to the control terminals A1 and A2 (coil) of the main starter contactor of the compressor. When the compressor control system energizes the main contactor, the
Alternatively, if the main contactor coil voltage is greater than 250Vac, a contactor auxiliary switch can be used to apply a suitable voltage to the “run” input terminals.
MAIN (LINE) CONTACTOR
+V | 0V |
| |
+V | 0V |
| |
AUXILIARY SWITCH |
|
ALARM RUN READY
C04
Run Signal Circuit with Auxiliary Switch
In instances where a motor starter contactor is not available or accessible, any part of a compressor control circuit that is energized when the compressor is running can be monitored. For example: fan contactor or voltage signal to a remote starter.
Alarm Run Ready
C04
Warning Input Circuit
The warning input will accept 12V to 250V AC (50/60Hz) or DC.
Do not connect a voltage greater than 250Vac/DC to this input.
This input can be connected to the terminals of an alarm lamp or other accessible part of the control circuit that is energized when the compressor is in a warning condition.
If a warning condition is experienced the compressor warning lamp, or warning circuit, will energize. The IR- PCB will detect the voltage and signal the X4I that a warning has occurred. If the compressor has no accessible warning circuit, or this function is not required, the
The
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