ICM Controls ICM492 Manual

ICM492

Single Phase Digital Line Voltage Monitor

Reliable protection of single phase systems against adverse line voltage conditions

SPECIFICATIONS

User Adjustable Settings:

•Voltage setpoint:95-280V

•Anti-short cycle time delay:0-720sec.

•Over voltage setting:5-25%

•Under voltage setting:5-25%

•Control mode:OnandOff

•Response time:0.1to10seconds

Inputs:

•Line voltage:80to300VAC

•Control voltage:24to240VAC

•Frequency:50/60Hz

•Accuracy:±2%

•Low power consumption:Max50mA@120V,

Max100mA@240V

Output:

•Type:dryrelaycontacts

•Form:SPDT

•Relay contact ratings:

 –N.C. Contacts:10Aresistive@277VAC

 –N.O. Contacts:10Aresistive@277VAC

•Connection Terminals:0.25”malefast-on

Mechanical:

•Case dimensions:3”Lx3.2”Wx1.35”H

•Unit weight:0.36lbs.

Environmental:

•Operating temp. range:-30°Cto+70°C

•Storage temp. range:-40°Cto+85°C

•Maximum operating/storage relative humidity:

95%non-condensing

7313 William Barry Blvd., North Syracuse,  NY  13212

(Phone) 315-233-5266  (Toll Free) 800-365-5525

(Fax) 315-233-5276

www.icmcontrols.com

LII335-3

Constantly monitors and displays line 

voltage. Protects against Over and Under 

voltage, and Rapid Short Cycling caused by 

Transient Faults and Power Interruptions

TheICM492isspecificallydesignedtomonitorline

voltageandguardsinglephaseequipmentagainst

damagecausedbyunderandoverlinevoltage

conditionsandrapidshortcycling.Recordslastfive

faults.

DESCRIPTION

•UniversalLineVoltage

Input

•Easy-viewBacklitDigital

Display

•RMSVoltageMonitoring

•5-faultmemorystorage

•AdjustableVoltageSet

Point

•AdjustableOverVoltage

SetPoint

•AdjustableUnder

VoltageSetPoint

FEATURES

•AdjustableAnti-Short

CycleTimeDelay

•AdjustableResponseon

FaultTime

•ControlMode

•5-FaultMemory

•UniversalControl

VoltageInput

•HeavyDutySPDTRelay

Output

TheICM492continuouslymonitorsincominglinevoltage

forfaultsanddisplaysRMSvoltageonthedigital

display.Whenlinevoltageisappropriate,ICM492closes

theCOMandN.O.relaycontacts.Whenincomingline

voltageisoutsideofuserselectedparameters,ICM492

willclosetheCOMandN.C.relaycontactsandindicate

afaultconditionbyflashingFAULTondisplay.Theunit

recordsthelastfivefaults,storingthehighestandlowest

voltagereadingsthatcausedthefault.TheUP,DOWN

andSELECTbuttonsarepressedsimultaneouslyto

clearthefaultsfrommemory.TheSELECTmenuhas

thefollowinguseradjustablesettings:voltagesetpoint,

timedelay,overvoltagepercentage,undervoltage

percentage,controlmode,andresponsetime.Time

delaypreventsshortcyclingwhenfaultnolongeris

presentandrapidpowerinterruptions.Theresponse

timeonthefaultconditioncanbeadjustedtohelp

reducenuisancetripsfromtransientfaults.When

ControlModesettingisselectedONthenICM492will

closeCOMandN.O.relaycontactsonlywhencontrol

voltageispresentatControlVoltageterminalsandthe

linevoltageisgood.Therelaycontactscanbeused

todirectdrivetheloadaslongascurrentratingisnot

exceeded.

MODE OF OPERATION

!!! WARNING !!!

ElectricalShockHazard

• Verify power is disconnected by removing a fuse 

or opening a circuit breaker before making any 

connections.

• This control should be installed by a trained technician.

• Incorrect installation can cause personal injuries, 

property damage or death.

• Follow all local & national codes while installing control.