Specifications

Diversied Electronics 800.727.5646 atcdiversied.com
Diversied Electronics 800.727.5646 atcdiversied.com
   
   
 CMC-24-ASE-5 24VAC 1.0to5.0amps
 CMC-24-ASE-10 24VAC 2.0to10amps
 CMC-120-ASE-5 120VAC 1.0to5.0amps
 CMC-120-ASE-10 120VAC 2.0to10amps
 
AC Over Current Monitor


Theisusedtodetectamotorjamupandgivetheequipmentan
opportunitytoclearitselfbeforegoingintoalockoutandalarmmode.
ControlvoltageiscontinuouslyappliedtotheCMCmonitor.Uponap-
plicationofthecontrolvoltagetheForwardandAlarmRelaysenergize.
WhenACcurrentisinitiallyapplied,theInrushTimeDelayisinitiated
todisabletheovercurrentsensorduringtheinrushperiod.(See1on
graph).
OnovercurrenttheForwardRelayde-energizesandtheunithasa5
seconddeadband,thentheReverseRelayenergizesfortheselected
timedelay.Then,theReverseRelayde-energizes,restsfortheDead
BandandtheForwardRelayenergizescompletingonefullcycle(See2
ongraph).AfteronecycleiscompletetheForwardrelayremainsener-
gizedifconditionshavereturnedtonormal.Ifanovercurrentremains,
theunitwillgothroughthesameoperating
sequenceasbeforeuntiljamiscorrectedorthe
numberofpreselectedcycleshaveoccurred.
Thenumberofcyclesthatoccurbeforelockoutis
fieldselectablefrom1to9cycles.topreventthe
faultsfromaccumulatingandcausingnuisance
alarms,aTimeBandisinitiateduponsensingthe
firstfault.Then,successiveoccurrencesequaling
thenumberoffaultswithintheTimeBandwill
causealarm.TheFormulaforthetimeBandis
70secondsx(Count-1)
Whenthenumberofcyclesreachesthe
pre-selectedcount,theForward,Reverseand
AlarmRelayslockintothede-energizedstate.
(See3ongraph)Resetisaccomplishedby
pressingthe
resetbutton.
TheLEDindicatorglowswhentheForwardRelayisenergized.
TheCMCseriesoperatesinthefailsafemodeastherelaysare
energizedinnormalconditions.
AnExternalCTmaybeusedtoextendtherangeofthe
CurrentMonitor.

 24or120VAC,50/60Hz

  InrushDelay 0.1to10SEC,Adjustable
  (ForwardandReverseOperations)
  AlternatingDelay 5SEC,Fixed
  Reverse 0.3to30SEC,Adjustable
  OperatingTime
  NumberofFault SelectorSwitch,1to9occurrences;
  Occurrences MustoccurwithintheSamplingTime.
  (3)SeparateSPDT10AmpRelayContacts,(1)Forward,
  (1)Reverse,(1)Alarm
 LEDglowswhenForwardRelayisenergized
Operate 32°to131°F(0°to+55°C)
  Storage -49°to185°F(-45°to+85°C)
 StyleE:SurfaceMountLexan#8-32ScrewTerminals
  20oz.
INCLUDESREVERSING
RELAY&FAULT
CONDITIONCOUNTER