
100.210-IOM (FEB 2015)
Page 15
VYPER
™
VARIABLE SPEED DRIVE
INSTALLATION - OPERATION - MAINTENANCE
In.addition,.the.drive.is.capable.of.operating.without.a.load.
for.ease.of.service..Refer.to.Table.4.for.current.limits.
TABlE 4 – UnIT CUrrEnT lImITS
HP
Freq
Voltage RMS current
LRA max
912 HP
60 Hz
460V
1180A
7014A
752
HP
50 Hz
400V
1180A
8205A
700 HP
60 Hz
460V
880A
5777A
572 HP
50 Hz
400V
880A
5780A
The. following. information. is. also. helpful. in. the. operation.
of.the.unit:
•.
Overload:.105%.of.full.load.rating.for.seven.(7).seconds.
•.
Efficiency:.98%.Typical.at.rated.load.and.frequency.
INPUT SHORT CIRCUIT LIMITS
Vyper
™
. drives. are. suitable. for. use. on. circuits. capable. of.
delivering.up.to.100,000.RMS.symmetrical.amperes.and.a.
maximum.of.480.VAC.
The.Vyper
™
.can.be.affected.by.specific.events.that.can.de-
crease.product.life.and.cause.component.damage.related.to.
the.input.power.conditioning...These.events.include:
•.
The.power.source.experiences.interruptions.
•.
The.power.system.has.power.factor.correction.capaci-
tors.switched.in.and.out.of.the.system.by.either.the.
power.supplier.or.the.end.user.
•.
The.power.source.contains.voltage.spikes.which.could.
be. caused. by. equipment. on. the. same. line. or. natural.
phenomena.such.as.electrical.storms.
If.one.or.more.of.these.conditions.exist,.Frick.recommends.
that.the.end.user.install.minimum.impedance.between.the.
Vyper
™
.and.the.power.source..A.transformer.or.other.similar.
device.can.supply.the.impedance.
A.100%.rated.input.power.circuit.breaker.with.ground.fault.
protection. and. external. lockable. operator. is. supplied. as.
standard..The.circuit.breaker.is.sized.in.accordance.with.the.
National.Electrical.Code.or.UL.requirements..Refer.to.Table.
5.for.circuit.breaker.ratings.and.lug.sizes.
TABlE 5 – CIrCUIT BrEAkEr rATIngS AnD lUg SIzES
Horsepower
Circuit Breaker
Rating (Amps)
Circuit Breaker
Lug Sizes
700/572
1000
3/0 to 500 KCMIL
912/752
1200
3/0 to 500 KCMIL
The.maximum.per.phase.Total.harmonic.Distortion.(ThD).
of. the. input. current. shall. not. exceed. 30%. at. 100%. rated.
power..The.Frick
®
.Vyper
™
.drive.typically.produces.between.
20-30%.ThD.
An.IEEE.519.harmonic.Filter.is.required.if.the.ThD.of.the.input.
current.at.the.installation.cannot.exceed.8%..The.IEEE.519.
harmonic.Filter.is.highly.recommended.for.crucial.applications.
such.as.hospitals,.computer.networks,.airports,.etc.
GENERAL OPERATION DESCRIPTION
The.Vyper
™
.serves.as.the.motor.starter.and.capacity.control.
for.a.Frick.screw.compressor..The.Vyper
™
.controls.capacity.by.
reducing.compressor.speed.and.optimizing.the.compressor.
efficiency.at.all.loads.
The.Vyper
™
.varies.the.screw.compressor.speed.by.control-
ling.the.frequency.and.voltage.of.electrical.power.supplied.
to.the.compressor.motor..Unlike.general.purpose.variable.
speed.drive.units,.the.Vyper
™
.is.factory.calibrated.for.maxi-
mum.performance.with.Frick.screw.compressors..Because.
of.the.specific.application.to.commercial.building.systems,.
the.Vyper
™
.has.been.designed.to.be.electronically.compat-
ible.with.other.electronic.equipment.that.typically.operates.
in.the.same.facility.
The.Vyper
™
.can.be.cooled.by.two.coolants:.water.or.glycol...
Both.coolants.can.be.used.with.either.package.mounted.or.
remotely. mounted. Vyper
™
. units.. Power. wiring. and. some.
piping.between.the.facility.and.Vyper
™
.must.be.field.supplied.
ELECTRICAL LIMITS
Supply.voltage.to.the.Vyper
™
.must.be.440/460/[email protected].
ply.voltage,.consider.a.step-up.or.step-down.transformer...
Refer.to.Table.1.
TABlE 1 – SUPPly VolTAgE rEqUIrEmEnTS
Frequency
Supply Voltages VAC
60 Hz
440/460/480
50 Hz
380
Extreme.operating.voltage.ranges.from.a.minimum.of.414.
VAC.to.a.maximum.of.508.VAC,.3-phase,.60.hz,.or.342.to.
423. VAC,. 50. hz.. The. maximum. allowable. voltage. imbal-
ance.is.3%..Size.the.main.transformer.so.voltage.does.not.
sag.more.than.5%.when.subjected.to.load.excursions..The.
steady-state.operating.voltage.should.be.within.the.range.of.
414.to.508.VAC,.3.phase,.60.hz,.or.342.to.423.VAC,.3.phase,.
50.hz...Refer.to.Table.2.
TABlE 2 – oPErATIng VolTAgE lImITS
Frequency
Operating Voltage Limits
Phase
Min
Max
60 Hz
414
508
3
50 Hz
342
423
3
Unit.controls.may.shut.down.with.power.interruptions.up.to.
one.cycle..Interruptions.greater.than.one.cycle.will.result.in.
a.shutdown..A.voltage.dip.below.391V,.60.hz.or.340V,.50.hz.
constitutes.a.power.interruption...Refer.to.Table.3.
TABlE 3 – PoWEr InTErrUPTIon mIn. VolTAgE lImITS
Frequency
Minimum Voltage Limits VAC
60 Hz
391
50 Hz
340
CURRENT LIMITS
The.drive.is.capable.of.outputting.the.rated.full.load.cur-
rent.over.the.operating.frequency.range.of.the.drive..The.
unit.is.started.with.the.compressor.fully.unloaded.until.the.
frequency.reaches.the.minimum.operating.frequency.range...
Содержание Frick 572
Страница 16: ...100 210 IOM FEB 2015 Page 16 VYPER VARIABLE SPEED DRIVE INSTALLATION OPERATION MAINTENANCE Notes ...
Страница 18: ...100 210 IOM FEB 2015 Page 18 VYPER VARIABLE SPEED DRIVE INSTALLATION Figure 7 Vyper Cabinet and Stand ...
Страница 40: ...100 210 IOM FEB 2015 Page 40 VYPER VARIABLE SPEED DRIVE INSTALLATION OPERATION MAINTENANCE Notes ...
Страница 60: ...100 210 IOM FEB 2015 Page 60 VYPER VARIABLE SPEED DRIVE INSTALLATION OPERATION MAINTENANCE Notes ...