ICM CONTROLS ICM401A Phase Loss and Reversal Protection Instruction Manual
- June 11, 2024
- ICM CONTROLS
Table of Contents
ICM CONTROLS ICM401A Phase Loss and Reversal Protection Instruction Manual
MODE OF OPERATION
Upon wiring three phase voltage (180-600 VAC) to the ICM401A and connecting 24
VAC singlephase voltage to the Y & C terminals, the control will continuously
monitor the three-phase line for phase loss and phase reversal. If all voltage
conditions are within the specified range, a green light will illuminate on
the ICM401A, and the Y-OUT terminal will be energized with 24 VAC. Upon a
phase loss or a phase reversal, a red fault light will illuminate on the
ICM401A
indicating a fault is presently occurring and the Y-OUT terminal will be de-
energized. Once the fault is no longer present and providing the 24 VAC
control voltage is still applied at Y & C, the ICM401A will automatically re-
energize the Y-OUT terminal.
SPECIFICATIONS
-
Input
-
Voltage: 180-600 VAC
-
Frequency: 50-60 Hz
– Jumper Wire Cut: 50 Hz -
Control Voltage: 18-32 VAC
Output -
Ratings:
– Type: Relay
– Form: SPST
– N.O.: 6 amps @ 32 VAC max
TROUBLESHOOTING
Red Status Ligh| Green Status Ligh| Output (Y-Out)| Operational Status or
Fault Condition
---|---|---|---
OFF| ON| ON| Normal operation and voltage conditions are within the specified
range.
ON| OFF| OFF| Phase loss or phase reversal detected. Check phase -phase
voltages A-B, B-C, A-C.
OFF| OFF| OFF| 24 VAC control voltage is not present
For any questions with installation or operation, please call our technical
support
hotline at 1-800-365-5525.
CAUTION
- High Voltage Shock hazard!
- Disconnect all power to the system before making any connections.
- Failure to adhere to all safety standards and personal protection when working with high voltage can result in personal injury or death.
- Installation of the ICM401A should be performed by trained technicians only. Adhere to all local and national electric codes.
INSTALLATION
- Using (2) #8 screws mount the ICM401A in a cool, dry, easily accessible location in the control panel. Torque screws to 10 + 2in-lb per screw.
- Connect the line side harness of the ICM401A in parallel with the line side of the contactor as shown in figure 1 using the appropriate mating connectors.
- Connect the low voltage harnesses to the 24 VAC source and contactor coil as shown in figure 1 using the appropriate mating connectors.
DIMENSIONAL DIAGRAM
WIRING DIAGRAM (Fig. 1)
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