ICM Controls ICM450 General instructions

Installation, Operation & Application Guide
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products – plus wiring diagrams, troubleshooting tips and more,
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ICM 450
Programmable Three Phase Voltage
Monitor with 25-Fault Memory
Protects motors from premature failure
and burnouts
http://waterheatertimer.org/How-to-wire-voltage-monitor.html

Specication
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 to 15 seconds adjustable
• Provides a delay between fault detection and system shutdown - helps to
eliminate nuisance trips or unnecessary shutdowns
Parameters
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.
Caution
Input
• Line Voltage: Universal, 190-630 VAC
• Frequency: 50-60 Hz
• Load Side Monitoring: Optional
• Control Voltage: 18-240 VAC
• Frequency: 50-60 Hz
Output
• Type: Relay, SPDT
• Voltage Range: 240VAC @ 10A maximum
• Frequency: 50-60 Hz
Control Operating Temperature
• Operating Temperature: -40ºF to +167ºF (-40ºC to +75ºC)
• Storage Temperature: -40ºF to +185ºF (-40ºC to +80ºC)
LCD Operating Temperature
• Operating Temperature: -4ºF to +167ºF (-20ºC to +75ºC)
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 cm. L, 10.8 cm. W, 3.5 cm. H)

1
Installation
• Terminals 4 and 6 are “dry,” normally open
contacts
• Terminals 4 and 6 are closed when power is
within specifications
• 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
Incoming 3-phase
voltage from load or
“back” side of contactor
(optional) LOAD
1
LOAD
2
LOAD
3
LINE
1
LINE
2
LINE
3
Figure 1
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)
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.
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 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”

2
ICM450 Wiring Diagrams
2-Pole Contactor 3-Pole Contactor
LINE
3
LINE
1
LINE
2
LOAD
1
LOAD
2
LOAD
3
Control
Voltage
L01
L02
L03
L0AD
LI1
LI3
LI2
LINE
3
LINE
1
LINE
2
LOAD
1
LOAD
2
LOAD
3
Control
Voltage
L01
L02
L03
L0AD
LI1 LI2 LI3
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.
Setting the Parameters
Button Functions
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
a b, b c, a c
(simultaneously).
Press to read faults.
Hold for 5 seconds
to clear faults and
reset memory.
* Thermostat, pressure switch, etc. * Thermostat, pressure switch, etc.

3
Parameters
Parameter Description Range Default Recommended
Line
Voltage
Average phase to phase
line voltage
190-600 208 Nameplate
Voltage
Delay On
Break
Amount of time between
the load de-energizing and
re-energizing
0-10
minutes
.1
minute
4 minutes**
Fault Inter-
rogation
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.

4
Fault Conditions
* Only swap phases during initial setup, not after the ICM450 has been in operation without
errors.
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
ICM450 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 Line 2, Line 2 Line 3, Line
3 Line 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 ICM450
(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.

5
Troubleshooting
Problem LCD
Readout LED Status Corrective Action
Load will not
energize
Phase
Avg.
All LEDs Off Confirm that the control input
(terminals 1 & 3) is properly
connected and configured (see
Pages 1 and 3)
Load will not
energize
Phase
Avg.
Load LED Off,
Fault LED
blinking
Press FAULT to observe the
current fault; correct the
condition of the first fault that
appears (see Fault Conditions,
Page 4 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

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.
LIA164-4
7313 William Barry Blvd., North Syracuse, NY 13212
(Toll Free) 800-365-5525 (Phone) 315-233-5266 (Fax) 315-233-5276
www.icmcontrols.com