ICM Controls ICM450 Installation, Operation & Application Manual page 2

Parameter
Line Voltage Average phase to phase line voltage
Delay On Break Amount of time between the load de-energizing and re-energizing
Fault Interrogation Amount of time before the load de-energizes due to a non-critical fault*
% Over/Under Voltage Maximum/minimum phase to phase average voltage, respectively
% Phase Unbalance Amount of allowable voltage unbalance
Reset Mode AUTO or number of times the load can be re-energized after a load side fault before a manual reset is necessary
Note: When monitoring line side only, the reset mode will always be AUTO
Control Mode With control mode set to OFF, the load will energize if no 3- phase fault conditions exist; with control mode ON, the load will
energize if no fault conditions exist and control voltage is present at terminals 1 and 3 of the ICM450
* Non-critical faults are faults such as High/Low Voltage and Phase Unbalance. Critical faults, such as Phase Loss and Phase Reversal, have a fault interrogation and typical response time of
under 4 seconds and it is not user adjustable.
** For best recommendations, consult manufacturer of equipment.
Press and release fault button to scroll through all saved faults.
Note: For initial setup, press and hold FAULT for 5 seconds to remove any previously stored faults.
Fault
Back Phase Loss Not all three of the phases on the load side are present
Back Phase Rev Loads 1, 2, or 3 are not in sequence (not 120º phase shifted)
Back Phase Unbalance A voltage unbalance between the three load phases exceeds
the unbalance setpoint
Front Over Voltage Average phase-phase voltage exceeds the maximum
percentage
Front Phase Loss Not all three of the phases on the line side are present
Front Phase Reversal Lines 1, 2, or 3 are not in sequence (not 120º phase shifted)
Front Phase Unbalance A voltage unbalance between the three line phases exceeds
the unbalance setpoint
Front Under Voltage Average phase-phase voltage is below the minimum
percentage
* Only swap phases during initial setup, not after the ICM450 has been in operation without errors.
Problem
Load will not energize
Load will not energize
Fault LED blinks repeatedly
while load is energized
Load will not de-energize
when control voltage is OFF
Setup LED is on while load is
being energized
Load will not energize
Load turns ON and OFF
repeatedly
ONE-YEAR LIMITED WARRANTY
The Seller warrants its products against defects in material or workmanship for a period of one (1)
year from the date of manufacture. The liability of the Seller is limited, at its option, to repair, replace
or issue a non-case credit for the purchase prices of the goods which are provided to be defective.
The warranty and remedies set forth herein do not apply to any goods or parts thereof which have
been subjected to misuse including any use or application in violation of the Seller's instructions,
neglect, tampering, improper storage, incorrect installation or servicing not performed by the Seller.
In order to permit the Seller to properly administer the warranty, the Buyer shall: 1) Notify the Seller
promptly of any claim, submitting date code information or any other pertinent data as requested by
the Seller. 2) Permit the Seller to inspect and test the product claimed to be defective. Items claimed
to be defective and are determined by Seller to be non-defective are subject to a $30.00 per hour
inspection fee. This warranty constitutes the Seller's sole liability hereunder and is in lieu of any
other warranty expressed, implied or statutory. Unless otherwise stated in writing, Seller makes no
warranty that the goods depicted or described herein are fit for any particular purpose.
Description
Problem
LCD
LED Status
Readout
Phase Average All LEDs Off
Phase Average Load LED Off,
Fault LED blinking
Phase Average Fault LED Blinking,
Load LED On
Phase Average Load LED On,
Control LED Off
Anything Other Than Setup LED On,
Phase Average Load LED On
Reset Fault LED Blinking
Readout is Irrelevant Fault LED Blinking
Parameters
Fault Conditions
1. Re-energize the contactor.
2. If the fault reappears after the load energizes:
a. Turn all power OFF
b. Check all load side connections
c. Check the contacts of the contactor for debris or excess carbon.
1. Turn OFF all power.
2. Swap any 2 phases on the load side of the ICM450 only (example: swap load 1 and load 2) *
3. Re-apply power.
1. Press the READ button to observe the present load voltages. Check system for unbalance cause.
2. Increase the fault interrogation time if necessary.
3. Increase the percent unbalance setting if necessary.
1. Check system for over-voltage cause.
2. Increase the percent over-voltage setting if necessary.
3. Increase the fault interrogation time if necessary.
1. Press and hold the READ button on the phase monitor or use an AC voltmeter to carefully measure all three
phase-phase line voltages (example: Line 1 Line 2, Line 2 Line 3, Line 3 Line 1).
2. Repair the missing phase.
1. Turn OFF all power.
2. Swap any 2 phases on the line side of the ICM450 (example: swap Line 1 and Line 2)*
3. Re-apply power.
1. Press the READ button to observe the present load voltages. Check system for unbalance cause.
2. Increase the fault interrogation time if necessary.
3. Increase the percent unbalance setting if necessary.
1. Check system for under-voltage cause.
2. Increase the percent under-voltage setting if necessary.
3. Increase the fault interrogation time if necessary.
Troubleshooting
Confirm that the control input (terminals 1 & 3) is properly connected and configured
Press FAULT once to observe the current fault; correct the condition of the first fault that appears
(see Fault Conditions above, for a list of corrective actions)
Indicates there are faults saved in the memory, press FAULT rapidly to scroll through saved faults; to
clear the faults, press and hold FAULT for more than 5 seconds
The control mode setting is OFF; press SETUP to get to the control mode. Press
mode ON
To exit the setup mode, press either READ or FAULT
Unit in lockout; maximum number of retries in manual reset mode has been reached; to reset unit, press
FAULT and hold for more than 5 seconds
Fix load side fault; press FAULT to observe condition; the delay on break period may be too short; press
SETUP to enter the delay on break mode; press
7313 William Barry Blvd., North Syracuse, NY 13212
(Toll Free) 800-365-5525 (Phone) 315-233-5266 (Fax) 315-233-5276
Range Default
190-600
0-10 minutes
minute
0-15 seconds
seconds
2-25%
2-20%
AUTO, 0-10 AUTO
ON or OFF
Corrective Action
Corrective Action
to lengthen the delay
Patent No. 424,953
www.icmcontrols.com
Recommended
208 Nameplate Voltage
.1 4 minutes**
15 7-8 seconds**
20% 12-15%**
20% 4-5%**
AUTO
ON Based on wiring
to set the control
LIAF043-2