
100.210-IOM (FEB 2015)
Page 73
VYPER
™
VARIABLE SPEED DRIVE
MAINTENANCE
of.RMS.output.current.are.compared.to.the.overload.thresh-
old.magnitude..If.this.threshold.is.exceeded.for.7.seconds.
the.unit.will.trip.and.the.Quantum
™
LX.panel.displays.Fault.
76..The.nominal.RMS.current.trip.levels.are.set.at.110%.of.
the.maximum.expected.RMS.input.current.when.running.at.
100%.FLA.and.are.as.follows:
• 700/572 – 277 Amps
• 912/752 – 385 Amps
Fault 77: Harmonic Filter Run Signal
Message
Quantum:.“Fault.77”
Quantum.LX:.“harmonic.Filter.Run.Signal.Fault”
When.a.digital.run.command.is.received.at.the.filter.logic.
board. from. the. Vyper
™
. Logic. board. via. the. 16-pin. ribbon.
cable,.a.1/10.second.timer.is.begun..A.redundant.run.com-
mand.must.also.occur.on.the.serial.data.link.from.the.Vyper
™
.
Logic.board.via.the.ribbon.cable.before.the.timer.expires..If.
both.signals.are.not.received,.the.Vyper
™
.will.be.shut.down.
and.this.Fault.message.will.be.displayed..If.this.shutdown.oc-
curs,.check.the.integrity.of.the.16-wire.ribbon.cable.installed.
between.the.Vyper
™
.Logic.board.and.the.Filter.Logic.board..
If.the.problem.persists,.replace.the.Vyper
™
.Logic.board.
Fault 81: Interface Board NovRAM Failure
(Warning Only)
Message
Quantum:.“Fault.81”
Quantum.LX:.“VSD.Interface.Board.NovRAM.Failure.(Warn-
ing.Only)”
The. integrity. of. the. NovRAM. is. verified. on. every. power-
up.. A. known. value. is. written. to. a. specified. location. in.
NovRAM,.read.back.from.that.location,.and.compared.to.the.
value.originally.written..If.the.two.values.do.not.match,.the.
NovRAM.Failure.fault.is.set.
Fault 82: Interface Board Motor Current Limit Override
(Warning Only)
Message
Quantum:.“Fault.82”
Quantum.LX:.Interface.Board.Motor.Current.Limit.Override.
(Warning.Only)
This.warning.is.triggered.whenever.the.Frick.Interface.Board.
is.operating.under.Current.Limit.Override..If.the.Run.Com-
mand.signal.is.disengaged,.any.current.limit.in.effect.will.be.
cancelled..If.the.Run.Command.signal.is.engaged,.the.actual.
speed.command.is.set.to.the.initial.speed.command.and.the.
Motor.Current.is.monitored.every.two.seconds..If.the.Motor.
Current.rises.above.103%,.the.unit.enters.current.limit.and.
a.warning.condition.will.be.set..Thereafter,.as.long.as.the.
Motor.Current.stays.above.100%,.the.actual.speed.command.
will.be.reduced.by.6.RPM.every.two.seconds..
Once.the.Motor.Current.falls.below.100%,.the.actual.speed.
command.is.increased.by.6.RPM.every.two.seconds,.until.
the.actual.speed.command.falls.within.±.6.RPM.of.the.initial.
speed. command,. when. speed. returns. to. the. initial. speed.
command,.the.warning.is.cleared..The.actual.speed.command.
is.used.to.set.the.Quantum
™
LX.Vyper
™
.operating.speed.
Fault 83: Harmonic Filter Serial Communication
(Warning Only)
Message
Quantum:.“Fault.83”
Quantum.LX:.“harmonic.Filter.Serial.Communication.(Warn-
ing.Only)”
When.requesting.Status.data,.the.response.data.from.the.
harmonic.Filter.includes.a.bit.that.indicates.whether.com-
munications. were. lost. from. the. Vyper
™
. to. the. harmonic.
Filter...If.this.bit.is.high.for.twenty.consecutive.seconds,.this.
warning.is.triggered..This.warning.is.also.triggered.when-
ever.a.twenty-second.receive,.timeout,.or.checksum.fault.is.
detected.on.the.harmonic.Filter.communications.
This. message. can. also. occur. as. a. background. message.
when.the.chiller.is.running..When.this.message.is.displayed,.
all.filter.related.values.are.unavailable..If.communication.is.
reestablished,.the.message.will.disappear.and.normal.values.
will.again.be.displayed..If.this.problem.is.encountered,.the.
ribbon.cable.connecting.the.Vyper
™
.Logic.board.to.the.Filter.
logic.board.should.be.checked..
Fault 84: Harmonic Filter Input Frequency Out of Range
(Warning Only)
Message
Quantum:.“Fault.84”
Quantum. LX:. “harmonic. Input. Frequency. Out. of. Range.
(Warning.Only)”.
The.power.line.frequency.detected.by.the.Vyper.harmonic.
filter.is.outside.the.range.of.58.to.62.hz.(60.hz),.or.49.to.
51.hz.(50.hz).and.the.Quantum
™
LX.panel.displays.Fault.84...
This.message.automatically.clears.when.the.line.frequency.
is.within.range.