ICM Controls ICM450 User guide
ICM450
Three Phase Voltage Monitors
Programmable, 25-Fault Memory
Portects motors from premature failure and burnouts
For information on our complete range of American-made
products — plus wiring diagrams, troubleshooting tips
and more, visit us at www.icmcontrols.com
Application Guide
Specications
2
Parameters
Caution
Input
• Line Voltage: Universal, 190-630 VAC
• Frequency: 50/60 Hz
• Load Side Monitoring: Optional
Output
• Type: Relay, SPDT
• Voltage Range: 240VAC @ 10A maximum
• Frequency: 50/60 Hz
Control Operating Temperature
• Operating Temperature: -40ºC to +75ºC (-40ºF to +167ºF)
• Storage Temperature: -40ºC to +80ºC (-40ºF to +185ºF)
LCD Operating Temperature
• Operating Temperature: -20ºC to +75ºC (-4ºF to +167ºF)
Mechanical
• Mounting: Surface mount using (2) #8 screws
• Terminations: Screw terminals
• Weight: 12 ounces (341 grams)
Dimensions
• 6 1/2” L, 4 1/4” W, 1 3/8” H
• 16.5 L, 10.8 W, 3.5 H (in cm.)
Phase Unbalance Protection
• Voltage Unbalance: 2-20% adjustable
Over/Under Voltage Protection
• Under Voltage: 2-25% adjustable
• Over Voltage: 2-25% adjustable
Phase Loss Protection
• Phase Loss Condition: Equals 25% of nominal for any given phase; system will shut down
and a fault will be recorded should this occur
Delay on Break Timer
• Control Voltage: 18-240 VAC
• Time Delay: 0 to 10 minutes adjustable
Fault Interrogation Delay
• Time Delay: 0-15 seconds adjustable
• Provides a delay between fault detection and system shutdown - helps to eliminate nuisance
trips or unnecessary shutdowns
Installation of the ICM450 shall be performed by trained technicians only. Adhere to all local
and national electric codes.
Disconnect all power to the system before making any connections.
• Control Voltage: 18-240 VAC
• Frequency: 50/60 Hz
3
Installation
Incoming 3-phase
voltage from load or
“back” side of contactor
(optional)
* 1 amp fuse recommended
(check local codes)
FUSE*
LOAD
1
LOAD
2
LOAD
3
LINE
1
LINE
2
LINE
3
Incoming 3-phase
voltage from line or
“front” side of contactor
The incoming 3-phase
voltage is used to power
up the ICM450 as well
(190-600)
FUSE*
FUSE*
Figure 1
1. Using (2) #8 screws, mount the ICM450 in a cool, dry, easily accessible location in the control
panel.
2. Connect voltage as shown in Figure 1 (below). Leave existing line and load side connections
intact on the contactor.
3. Load side monitoring is optional (unit may be used to monitor line side only).
Wire the contactor and optional control voltage monitoring as in Figures 2 and 3 (below).
Note: Load/line wire must be rated for 3-phase voltage rating, 20ga minimum.
4. Upon application of power, the ICM450 will be on line and will begin to monitor the system.
• Terminals 1 and 3 are the control signal input terminals
• “Control Mode” is turned ON or OFF in setup
• With “Control Mode” set to “ON,” there must be a
voltage present on terminals 1 and 3 for the relay
output terminals 4 and 6 to close; this voltage can be
supplied from a thermostat, pressure switch, etc.
• When the voltage on these terminals is re-applied, the
unit will not re-energize until the delay on break
(0-10 minutes) time has elapsed
• Use of terminals 1 and 3 is optional; they will be
ignored if the “Control Mode” is set to “OFF” Control Voltage
(18-240 VAC)
Short pins when
using 24 VAC
control voltage
Figure 2
* Switch can be
a thermostat,
pressure
switch, etc.
13
6 5 4
• Terminals 4 and 6 are “dry,” normally open contacts
• Terminals 4 and 6 are closed when power is within
specications
• Terminals 4 and 6 open when there is a fault
condition or loss of control signal
Contactor Voltage (18-240 VAC)
Contactor Coil
Figure 3
13
6 5 4
4
Wiring Diagrams
* Thermostat pressure switch, etc.
Fuse
Fuse
Fuse
LINE
3
LINE
1
LINE
2
LOAD
1
LOAD
2
LOAD
3
Control
Voltage
L01
L02
L03
L0AD
LI1
LI3
LI2
* Thermostat pressure switch, etc.
Fuse
Fuse
Fuse
LINE
3
LINE
1
LINE
2
LOAD
1
LOAD
2
LOAD
3
Control
Voltage
L01
L02
L03
L0AD
LI1
LI3
LI2
3-Pole Contactor2-Pole Contactor
Setting the Parameters
1. Press the green SETUP button to enter Setup mode. Setup LED will light.
2. Use the and arrows to change user parameters.
3. Scroll through setup by pressing and releasing the SETUP button.
4. When the last parameter has been set, the phase average will be displayed and
the Setup LED will automatically turn OFF.
Button Functions
Press to read
faults. Hold for 5
seconds to clear
faults and reset
memory.
Press arrows to scroll
through and select user
parameter settings in
Setup mode. HOLD
down for fast edit.
Press to enter
Setup mode
and select user
parameters.
Hold for
voltage display
aèb, bèc, aèc
(simultaneously).
5
Parameters
Parameter Description Range Default Recommended
Line
Voltage
Average phase to phase line
voltage
190-630 208 Nameplate
Voltage
Delay On
Break
Amount of time between the
load de-energizing and re-
energizing
0-10
minutes
.1 minute 4 minutes**
Fault
Interrogation
Amount of time before the
load de-energizes due to a
non-critical fault*
0-15
seconds
15
seconds
7-8 seconds**
%
Over/Under
Voltage
Maximum/minimum phase
to phase average voltage,
respectively
2-25% 20% 12-15%**
% Phase
Unbalance
Amount of allowable voltage
unbalance
2-20% 20% 4-5%**
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
AUTO,
0-10
AUTO
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
ON
or
OFF
ON Based on wiring
* 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 of under 2
seconds and it is not user adjustable.
** For best recommendations, consult manufacturer of equipment.
6
Fault Conditions
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 Problem Corrective Action
Back Phase
Loss
Not all three of the phases
on the load side are
present
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.
Back Phase
Rev
Loads 1, 2, or 3 are not in
sequence (not 120º phase
shifted)
1. Turn OFF all power.
2. Swap any 2 phases on the load side of the unit only
(example: swap load 1 and load 2) *
3. Re-apply power.
Back Phase
Unbal
A voltage unbalance
between the three load
phases exceeds the
unbalance setpoint
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.
Front Over
Volt
Average phase-phase
voltage exceeds the
maximum percentage
1. Check system for over-voltage cause.
2. Increase the percent over-voltage setting if necessary.
3. Increase the fault interrogation time if necessary.
Front Phase
Loss
Not all three of the phases
on the line side are
present
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
è
Line 2, Line 2
è
Line 3, Line 3èLine 1).
2. Repair the missing phase.
Front Phase
Rev
Lines 1, 2, or 3 are not in
sequence (not 120º phase
shifted)
1. Turn OFF all power.
2. Swap any 2 phases on the line side of the unit. For
example: swap load 1 and load 2*.
3. Re-apply power.
Front Phase
Unbal
A voltage unbalance
between the three line
phases exceeds the
unbalance setpoint
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.
Front Under
Volt
Average phase-phase
voltage is below the
minimum percentage
1. Check system for under-voltage cause.
2. Increase the percent under-voltage setting if necessary.
3. Increase the fault interrogation time if necessary.
* Only swap phases during initial setup, not after unit has been in operation without errors.
Troubleshooting
Problem LCD
Readout LED Status Corrective Action
Load will not
energize
Phase
Avg.
All LEDs Off Conrm that the control input is properly
connected and congured
Load will not
energize
Phase
Avg.
Load LED Off,
Fault LED
blinking
Press FAULT to observe the current fault;
correct the condition of the rst fault that
appears (see Fault Conditions, Page 6 for
a list of corrective actions)
Fault LED
blinks
repeatedly
while load is
energized
Phase
Avg.
Fault LED
Blinking,
Load LED On
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
Load will not
de-energize
when control
voltage is
OFF
Phase
Avg.
Load LED On,
Control LED
Off
The control mode setting is OFF; press
SETUP to get to the control mode. Press
to set the control mode ON
Setup LED
is on while
load is being
energized
Anything
Other Than
Phase Avg.
Setup LED
On,
Load LED On
To exit the setup mode, press either READ
or FAULT
Load will not
energize
Reset Fault LED
Blinking
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
Load turns
ON and OFF
repeatedly
Readout is
Irrelevant
Fault LED
Blinking
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 to lengthen
the delay
7
6333 Daedalus Drive, Cicero, NY 13039
(Phone) 315-233-5266 (Toll Free) 800-365-5525 (Fax) 315-233-5276
www.icmcontrols.com
LIA164-1
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 t for any particular purpose.
ATTENTION TECHNICIANS
DO NOT USE THE FACTORY PRESETS ON THIS MONITOR
CHANGE SETTINGS TO THE ONES LISTED BELOW
Description Setting
Voltage 10%
Imbalance 2%
Delay on break 10 minutes
Restart Set to “0”
The monitor will act as a manual
reset
auto-reset defeats the purpose
Control voltage “off”
If you are using the unit’s
“anti-cycle timer” Control wire is on #6 & #4
Control voltage “on”
If you would like to use the monitor
as an
“anti-cycle timer”
Control wire on #1 & #3
Fault interrogation 2 second length of time to de-
energize
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