
100.210-IOM (FEB 2015)
Page 48
VYPER
™
VARIABLE SPEED DRIVE
OPERATION
Figure 49 - Vyper™ Screen
VYPER SCREEN SETPOINTS
The.Vyper™.Screen.(See.Figure.49).contains.setpoints.and.
information.pertinent.to.the.operation.of.the.Vyper™.such.
as.internal.currents,.voltages,.and.temperatures..This.screen.
also.gives.detailed.information.on.some.external.equipment.
such.as.the.circulation.pump.and.the.motor.temperature.
The.Service.Level.2.Vyper
™
.Screen.is.similar.to.Level.1,.but.
adds.the.capability.of.adjusting.several.setpoints,.as.follows:
Standby Time:
.The.VSD.enters.Standby.mode.when.there.is.
no.load.on.the.VSD..The.VSD.capacitor.banks.remain.charged.
and.the.compressor.output.is.0.hz..Standby.mode.permits.
fast.acceleration.when.the.load.returns..If.the.time.of.zero.
load.surpasses.the.Standby.Time.setting,.the.VSD.will.need.
to.go.through.a.restart.sequence..The.values.for.Standby.
mode.can.be.set.from.0.to.1,440.minutes.(24.hours).
Clear Standby Time:
.This.option.can.be.pressed.to.clear.the.
Standby.time.value.from.the.VSD.if.not.desired.
Clear VSD Memory:
.Clear.the.existing.trending.values.in.
the.Vyper
™
.memory.
Clear Total kWh:
..This.function.clears.the.accumulated.kWh.
totals.from.the.counter.since.the.last.reset..The.value.returns.
to.zero.upon.selecting.this.option.
The.following.Vyper
™
.screen.parameters.display.measured.
values.in.accordance.with.the.user.defined.unit.selections.
• Average Current (Amps)
• Current Phase A (Amps)
• Current Phase B (Amps)
• Current Phase C (Amps)
• Full Load Amps (%)
• Output Frequency (Hz)
• Output Voltage (Volts)
• DC Bus Voltage (Volts)
• Input Power (kW)
• Current Value Timer (Min:Sec)
• Actual Speed (RPM)
• Speed Command (RPM)
• Ambient Temperature (°F or °C)
• Converter Heatsink Temp (°F or °C)
• Baseplate Temperature (°F or °C)
• Job FLA (Amps)
• DC Inverter Link Current (Amps)
• Motor Temperature (°F or °C)
• VSD Model (305 or 435)
• Total kWh (kWh)
The.status.of.the.following.parameters.are.indicated.using.
a.binary.number.next.to.the.field.description..Table.14.de-
scribes.the.status.of.the.parameter.indicator.
TABlE 14 – BInAry PArAmETEr InDICATor STATUS
Indicator
Status
“0”
no./off
“1”
yes./.on
• VSD Operating Mode
• Harmonic Filter Present
• Harmonic Filter Operating Mode
• Water Pump Energized
• Precharge Relay Energized
• Trigger SCRs Energized
NOTICE
Repetitive/Unexplained Vyper Cutouts - For repetitive
or unexplained cutouts, tab to the [Clear Standby Time]
button and clear by pressing the enter button. Repeat
that process to also clear the [Clear VSD Memory] and
[Clear Total KWH] buttons.