RGZESDI Application Manual Inverter Duty AC Induction …nw.automation.wesco.com/.../Siemens_ApplicationManual_InverterDuty.pdfNMSA-L1000 RGZESDI Application Manual Inverter Duty AC

NMSA-L1000

RGZESDI Application ManualInverter Duty AC Induction Motors

App Manual in Spreads 1/16/01 9:03 AM Page 3

2

General Information

Application Considerations . . . . . . . . . . . . . . . .3, 7Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4, 6Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Understanding IGBT Drives . . . . . . . . . . . . . . . . . 5Motor Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Output Reactors/Cable Considerations . . . . . . . . . 7Refer to Performance Curves . . . . . . . . . . . . . . . . 8Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Performance Curves

Volts/Hz Control Drive2 pole . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 134 pole . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 186 pole . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 238 pole . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 - 27RGZZESD Inverter Duty . . . . . . . . . . . . . . .34 - 35

Motor Selection Guide

Variable/Constant Torque . . . . . . . . . . . . . 28 - 291000:1 Constant Torque . . . . . . . . . . . . . . 30 - 31RGZZESD Inverter Duty . . . . . . . . . . . . . . . . . 32

Related Catalogs and Information

Inverter Duty Selection and Pricing Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bulletin NMSP L0700A

MedallionSelection and Pricing Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bulletin NMSP-L0500A

RGZESDI Inverter Duty AC Induction MotorsInstallation • Operation • Maintenance Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bulletin NMIM-L1000

Stocked Low Voltage IEC MotorsSelection and Pricing Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bulletin NMSP-L0200

TABLE OF CONTENTS

Data subject to change without notice.


GENERAL INFORMATION

As a manufacturer of both variablespeed drives and AC motors,Siemens has a superior understand-ing of their collective operation,application, and performance. TheInverter Duty Motors outlined inthis publication are the result of anextensive testing program to estab-lish guidelines for their typical uti-lization.

Siemens inverter-duty motors arerated for continuous operation in a40° C ambient at altitudes up to3300 feet above sea level. For spe-cialized applications, such as non-standard ambient, intermittent orhigh duty cycles, high constanthorsepower speed ranges (higherthan those indicated), non-standardvoltage or frequency, or other spe-cial conditions, please consultSiemens.

APPLICATION CONSIDERATIONS

Variable Torque Applications -From the perspective of motorcooling, AC motors are well suitedto be used in adjustable speedvariable torque applications, suchas centrifugal fans or pumps. Thetorque characteristics of a variabletorque load is such that the loadfalls off rapidly as the motor speedis reduced. The variable torqueload eliminates the necessity tode-rate the motor due to excessiveheat resulting from diminishedmotor cooling at reduced speeds.Variable Torque operation abovebase speed must be reviewed bySiemens.

Constant Torque Operation -Many general industrial machines,other than fans and pumps, areconstant torque systems where themachine’s torque requirement isindependent of its speed. If themachine speed is doubled, itshorsepower requirement doubles.

Vector drives can supply nearlyideal conditions to the motor result-ing in better motor performance,cooler operation, and more precisespeed regulation, especially at lowspeed ranges. A standard 4-pole460V motor can be accurately con-trolled by this method to its syn-chronous speed of 1800 RPM.

RGZESDI Constant Torque motorsprovide full rated torque within theirlisted speed range, without exceed-ing their Class F temperature ratingon PWM (pulse width modulated)inverter power. Ratings in this cat-alog are based on use with vectortype IGBT inverters, set at a mini-mum 3 kHz switching frequency,and are designed for operation at150% of rated torque for oneminute, up to the base speed ofthe motor (overload capacitydeclines as the motor reaches max-imum speed).

Constant Torque operation abovebase speed must be reviewed bySiemens.

Constant Horsepower Operation -AC motor controllers are also adapt-able to constant horsepower opera-tion. With this mode of operation,the Volts/Hz ratio is maintained to aspecific frequency, normally 60 Hz.At this point, the voltage is“clamped” at a constant level while

the frequency is adjusted further toachieve the desired maximumspeed. The motor becomes “volt-age starved” above the clampingpoint and torque decreases asspeed increases, resulting in con-stant horsepower output. In con-stant horsepower applications, thedrive provides conventional constanttorque/variable horsepower opera-tion up to 60 hertz. Above 60 hertz,the motor/drive provides constanthorsepower, variable torque opera-tion.

Constant Horsepower Speed Limits (see pg 28-29 chart)

Maximum Safe MechanicalSpeed Limits Direct Connected Loads(Does not imply constant horse-power capability)

3

Caution must be observed when applying standard motors for continuous low speed, constant torque opera-tion. A standard motor’s self-cooling capacity depends upon self-ventilation schemes that are greatly reducedat decreased operating speeds.

CAUTION

Motor 3600 1800 1200 900 Frame RPM RPM RPM RPM

143-184 5400 3600 2400 1800213-256 5400 3600 2400 1800284-286 4800 3000 2000 1500324-326 4800 3000 2000 1500364-365 4500 2700 1800 1350404-405 3600 2700 1800 1350444-445* 3600 2700 1800 1350447-449* 3600 2400 1800 1350

*444-449 frame motors (1800 RPM andbelow) intended for belt duty are sup-plied with roller bearings. Consultsheave/belt supplier for maximum safeoperating speeds.

Motor 3600 1800 1200 Frame RPM RPM RPM

143-184 7200 5400 2700213-256 5400 4200 2700284-286 5400 3600 2700324-326 4500 3600 2700364-365 4500 2700 2700404-445 3600 2700 1800447-449 3600 2250 1800


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WARRANTY

Siemens totally enclosed RGZESDIand explosion proof RGZZESDinverter-duty motors are warrantedto be free from defects in materialsand workmanship for a period ofthirty-six (36) months from the dateof manufacture. See also“Siemens Standard Terms andConditions of Sale” for additionaldetails.

ServiceFor warranty service on thesemotors, contact your nearestSiemens authorized service shop.

AccessoriesAccessories, such as “C” face kitsor encoders, can be added to stockmotors in our Super Mod Center.Other common modifications, suchas addition of space heaters, shaftseals or change to F2 assembly, arealso available from the Super ModCenter. This facility provides ashort lead-time on many popularmodifications.

Optional BlowersLow rotational speeds at constanttorque loads, common in many vec-tor applications, provide the motorwith reduced ventilation. As aresult, these motors are designedas Totally Enclosed Blower Cooled.Blowers are powered by a SiemensTENV, Severe Duty, 3 phase motor.Standard voltage is 230/460.

Optional EncodersThese electronic devices senserotor speed and direction. A cableis connected from the encoder tothe VFD. Various resolutions (puls-es per revolution, PPR) are avail-able. All encoders offer quadrature(direction sensing), with line driveroutput.

Service FactorStandard service factor for RGZES-DI motors is 1.0 on inverter power.RGZESDI motors are suitable for1.15 service factor on sine wavepower.

Thermal ProtectionAll RGZESDI motors are equippedwith Class F normally closed ther-mostats for detection of overloadconditions and/or excessive heat-ing.

InsulationType RGZESDI inverter dutymotors utilize an insulation systemdesigned to meet the requirementsof NEMA Part 31.

50 Hertz PowerOperation on 50 Hz sources limitsthe speed and voltage available fortorque. Typically the next strongermotor, in larger frame is requiredfor satisfactory application and per-formance.

It is the responsibility of the startup personnel during commissioning of the VFD/motor combination to proper-ly tune the drive to the motor for the specific application. Application of motors which are not per the guide-lines of this document may void the warranty, if they are not specifically approved by Siemens.

CAUTION


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BACKGROUND

More and more electric motors arebeing used with variable frequencydrives (VFD) powered by insulatedgate bipolar transistors or IGBT’s.Typical considerations for loadtorque characteristics and lowspeed operation remain importantin specifying a motor to ensureadequate cooling, but IGBT drivescan introduce other elements. Dueto the rapid switching rates of IGBTdrives, the potential for long termdetrimental effects on motor insula-tion exists if special measures arenot taken. IGBT based PWM(pulse width modulated) drives gen-erate high voltage spikes due totheir high carrier frequencies andthe short rise-time of their pulsedoutputs.

In response to these concerns,Siemens has conducted researchand testing to better understandthe voltage stress environment inwhich our insulation system isexpected to perform. The insula-tion system offered in the RGZES-DI is designed and manufactured tooperate with a variable frequencydrive (VFD) for long motor life, highreliability, and superior perfor-mance.

UNDERSTANDING IGBT DRIVES

IGBT’s have become the preferredpower-switching device in moderndrives because of their low costand relative ease of manufacture.In addition, their high switchingspeed reduces losses while creat-ing better motor current waveformsand improved overall dynamic per-formance as compared to earliertechnologies. Most conventionalvoltage source VFD’s rectify thesinusoidal AC voltage provided bythe power utility and use switches(IGBTs) to create a pulse width modulated output (PWM).The drive sends out a train of rec-tangular shaped pulses to themotor via the motor lead cables.The height of the pulses is equal tothe DC bus voltage.

Their widths and spacing, however,are varied or modulated in such away as to provide an effective volt-age similar to a sinusoidal voltageof the desired magnitude and fre-quency.

The drive sends out these pulses ata rate equal to the control carrierfrequency. Modern VFD’s typicallyutilize carrier frequencies in a rangefrom 2-20 kHz meaning that thedrive may be sending out as manyas 20,000 pulses per second.

IGBTs used to produce these volt-age pulses have very short turn onand turn off times and therefore,the pulses have very short rise andfall times. Rise time is defined inNEMA MG 1 Part 30 as the timerequired for the pulse to go from10% to 90% of its steady statevalue. Today’s VFD’s produce puls-es with rise times as low as .05microseconds.

Voltage Spikes or Overshoots:Because of the IGBT’s rapid risetime, a transient over-voltage oftwice the DC bus voltage (or higherunder unusual conditions) can occureach time a pulse reaches themotor terminals.

Several variables can affect themagnitude of the transient over-voltage including pulse rise timeand magnitude; spacing of pulses;cable length; and motor and cablesurge impedance. Installations hav-ing relatively small drives on longcables require added precautions,not only to assure the motor insula-tion is not over-stressed, but toalso assure proper operation of theinverter.

Neutral Shift: Neutral shift is thevoltage difference between thethree-phase power source neutralof the VFD and the motor neutral.Its magnitude is a function of thetotal system design. The result ofneutral shift is higher than normalline to ground voltages at themotor. In the case of typical volt-age source drive, it can be as highas the DC bus voltage value, evenwithout considering transient over-voltages.

Including transient over-voltages,the motor may be exposed to apeak line to ground voltage of 1.5to 2 times the DC bus voltage.(Refer to NEMA MG1-Part 31.4.4.4.)

The RGZESDI Insulation System


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The RGZESDI Insulation SystemRandom-wound motor insulationcomponents consist of stator wireinsulation, phase insulation, slot orground insulation, and impregnatingvarnish. These components mustbe carefully chosen for motorsintended for use with adjustablespeed drives, because of the fac-tors outlined earlier. The RGZESDImotor uses an insulation systemsuitable for most common VFDapplications.

Turn Insulation: As stated earlier,transient over-voltages can elevatethe motor line-to-line voltage ashigh as twice the control DC busvoltage. The steep-fronted nature(rapid rise time or dv/dt) of thesepulses cause them to be unevenlydistributed throughout the winding.Thus, the first coil is exposed tohigher voltages than the rest of thewinding. This is why motors thatare improperly applied to VFD’s canbe expected to fail most oftenacross this first coil.

Unfortunately, with random wind-ings, the first and last turn in a coilare sometimes placed near oneanother in the slot. This causes theentire coil voltage to be presentbetween these two adjacent wires.When two conductors have a volt-age between them, it becomes dis-tributed within the insulation and inthe air between their surfaces. Ifthe voltage gradient in the air spacebetween these conductors isbeyond a certain critical value, aluminous discharge will take placedue to the ionization of air. Thisdischarge is known as corona (par-tial discharge). The critical voltageat which corona begins to takeplace is known as the corona incep-tion voltage CIV. In order to obtainlong motor service life, coronamust be avoided as much as possi-ble. However, simply avoidingcorona is not enough to assure longlife. Siemens has collected exten-sive data regarding the voltagepulse endurance characteristics ofvarious magnet wire insulations,along with a detailed understandingof how the voltage pulses are dis-tributed throughout the motor.

Armed with this information ourengineers have designed theRGZESDI using a winding layoutand wire type such that the expect-ed voltage between any two wiresis safely below a value that wouldresult in unacceptable insulationlife.

There are several insulationenhancements in the RGZESDI thatoffer reliable performance in invert-er applications. Among them areimproved wire film; optimized spac-ing of the insulation; low operatingtemperature; and use of our uniquenon-hygroscopic insulation systemfor superior resistance to theeffects of humidity. Small air bub-bles in the insulation have beennearly eliminated and crevicesbetween adjacent turns have beenminimized during varnishing.Siemens quality processes mini-mize the likelihood for these areasto become sites for partial dis-charges and accelerated insulationfailure.

Phase Insulation: Phase insulationconsists of slot center insulationand phase barrier insulation. Theslot center insulation separates thetop and bottom coils in a two layerthree-phase winding. The phasebarrier insulation is insertedbetween coils belonging to differ-ent phases in the winding endturns. Because of the high phase-to-phase voltages that are possibleduring operation from a PWM con-trol, the thickness of these compo-nents has been increased over thatutilized for sine wave operation.

Slot or ground insulation: As dis-cussed earlier because of neutralshift and transient over-voltages,the ground insulation can be moreseverely stressed in VFD than insine wave applications. For thisreason ground insulation thicknesshas also been increased.

NEMA MG1-Part 31.4.4.2.

NEMA MG1, Parts 30 and 31 out-line motor capabilities when usedwith VFD’s for motors rated 600volts or less. Part 30 requires thatstandard motors utilize an insulationsystem able to endure repeatedvoltage peaks of up to 1000 voltswith rise times of 2 or moremicroseconds. Part 31 defines aninverter duty motor as having aninsulation system able to withstandpeaks of 3.1 times rated voltagewith rise times of 0.1 or moremicrosecond. The RGZESDI motor, speciallydesigned for inverter duty applica-tions, exceeds the insulation criteriaspecified NEMA MG 1, Part 31 andcan be specified when a superiorinsulation is needed. As a manufac-turer of both variable speed drivesand AC motors, Siemens has asuperior understanding of their col-lective operation, application, andperformance.

MOTOR DESIGN

For a motor to be reliable in invert-er duty applications it should bedesigned to keep internal operatingtemperatures at a minimum.Rotors should be free from voids tominimize current-flow resistanceand excess heat generation.

The Siemens 4-Quadrant fin coolingdesign maximizes heat dissipation,and fans and blowers have beenoptimized for reliable ventilation.Tight tolerances and good mechani-cal contact guarantee thermal con-tact to external cooling surfaces. Abuilt-in thermostat acts as an addedmeasure against heat buildup orinadequate cooling.

The mechanical features of theRGZESDI make certain the motorwill perform in the most demandingapplications. Low vibration, castiron construction - including castiron inner bearing caps on all framesizes - and Siemens dedication toquality, assure that every RGZESDIwill provide reliable operation usedwith modern inverter power.


7

APPLICATION CONSIDERATIONS• Leave the commissioning of the VFD/motor combination to experienced startup personnel.

• Connect the thermostat leads to the control or alarm circuit of the VFD or control circuit.

• Connect the blower (if so equipped) per the wiring diagram supplied with the blower motor.

• Connect the encoder (if so equipped) per the wiring diagram supplied with the encoder.

• Refer any special applications (high or low ambient, high cyclic loading, special voltage or frequen-cy, etc.) to Siemens.

• Specify an inverter with a carrier frequency selectable to a minimum of 3 KHz.

• Read the instruction manual supplied with the motor and VFD before applying power to the combi-nation.

• Do not operate RGZESDI motors beyond 1.0 service factor on inverter power.

• Obtain the consent of Siemens Warranty Administration before performing any repair during thefirst 36 months of operation.

• Do not place power factor correction capacitors between the motor and VFD.

• Do not exceed speed parameters specified on the motor nameplate.

• Do not utilize excessively long cable lengths between the drive and motor. (See guidelines below.)

Output Reactors/Cable ConsiderationsThe output reactor is especiallyused to limit additional currentspikes caused by the cable capaci-tances when long cables are used,i.e., it:

• Reduces the charge currentspikes for long cables

• Reduces the voltage rate-of-change dv/dt at the motor termi-nals.

It does not reduce the magnitudeof the transient voltage spikes atthe motor terminals.

NOTEThe specified lengths are valid forunshielded cables; for shieldedcables, these values must bereduced to 2/3.If several motors are connected toa drive converter, the sum of thecables lengths of all the motorfeeder cables must be less thanthe permissible cable length.


8

The purpose of the calculationsbelow is to determine pull-uptorque and pull-up speed and plotthese points on the curves provid-ed. If these points fall beneath thecurves, then acceptable applicationresults.

SpeedL = actual RPMnameplate RPM

TorqueL = actual torque = actual HPrated torque rated HP

Rated = nameplate HP X 5252torque nameplate RPM

Constant Horsepower

For constant horsepower loads, thetorque is proportional to the speed.The equation to calculate pull-uptorque is:

= (pull-up RPMold) X (pull-up torque old)(pull-up RPMnew)

Calculate torque for each of theknown speed points and plot thesepoints on the attached graphs. Ifany point falls above the curve, themotor will overheat when usedwith a variable frequency drive forthe type of load identified.

Constant Torque

For constant torque loads, wherethe calculated value of pull-uptorque can be used for all speeds.

Example 1 - Constant TorqueLoads

• 4 pole• 100 horsepower• Constant torque to 20 Hz speed• 84 HP at nameplate RPM

(see curves page 17)

Point 11800 RPM @ 60 Hz

Torque = 84 x 295 = 248100

Point 2600 RPM @ 20 Hz

Torque still 248

Since both points fall beneath thecurve for a 4 pole 100 hp motor,this motor will function properlyunder VFD power for the applica-tion described.

Variable Torque

For variable torque loads, thetorque is proportional to the squareof the speed. The equation to cal-culate pull-up torque is:

= (RPMnew)2 X (Torqueold)(RPMold)2

Example 2 - Variable Torque

• 6 pole• 50 horsepower• 100 lb-ft load torque at 1180

RPM• Variable torque down to zero

speed(see curves page 22)

Since torque varies as a square ofthe speed, only the highest speedpoint needs to be checked.

HzL= actual RPM x 60 = 1180 x 60 = 60 nameplate RPM 1180

Rated torque = (rated HP)X(5252) =rated RPM

= (50) (5252) = 2231180

TorqueL =actual = 100 lb-ft torque

Since the highest speed point onthis variable torque falls beneaththe line, this motor will functionproperly under VFD power for theapplication described.

Refer to Performance Curves

The attached curves are provided to determine thesuitability of type RGZESDI for applications with pulsewidth modulated (PWM) variable frequency drives.These curves apply only to Siemens type RGZESDImotors listed in Selection and Pricing Guide NMSP-L0700A. If the desired motor cannot be selected fromthe curves provided, refer the application to Siemens.Explosion proof motors can be applied in accordanceto the curves on pages 30 and 31.

Information Needed for Motor Selection

Operating Speed Range: Minimum and maximumspeeds must be determined prior to the selection ofthe motor. If operation is required above base speed(60 hertz rated speed), first ensure that constanthorsepower (CHP) speeds are not exceeded.

Type of Load: Select from Variable Torque, ConstantTorque, or Constant Horsepower.


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3T10

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112

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1.2

5225

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26.

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52

1.5

1800

145T

10:1

1740

2.2

1.4

84.0

4.5

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3480

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3712

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31.

585

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184T

10:1

860

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1.8

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9.2

4.6

1760

0.09

8.31

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220

28.

3112

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3600

145T

10:1

3495

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84.0

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218

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5T10

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352.

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3.80

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5.05

3.56

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184T

10:1

1160

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1.9

86.5

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2320

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2T10

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318

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2T10

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2.98

4.54

146

3.13

2.62

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213T

10:1

1165

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87.5

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2330

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287

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184T

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186

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186

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0.66

4.09

4.80

68.4

1.46

1.99

3600

213T

10:1

3515

8.8

3.4

88.5

117.

552

700.

590

2.08

1.46

83.6

1.20

0.71

7.5

1800

213T

10:1

1750

9.5

4.2

89.5

2311

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560

1.27

2.48

63.2

1.03

0.75

1200

254T

6:1

1170

9.8

4.5

90.2

3416

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1.89

54.3

0.82

0.58

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256T

6:1

865

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23.0

1765

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3.69

56.1

0.91

1.47

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215T

10:1

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49.6

0.82

0.61

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256T

6:1

1165

1310

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22.5

2330

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52.1

0.68

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284T

6:1

875

159.

191

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0.49

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254T

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4T6:

111

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286T

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111

7526

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1955

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0.93

22.9

0.29

00.

210

900

324T

4:1

860

3118

91.0

119

71.0

1480

4.6

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336

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3724

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70.

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270

0.21

0

2518

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4T6:

117

6529

1393

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49.7

2940

3.8

0.55

0.88

22.8

0.19

00.

180

1200

324T

4:1

1180

3315

92.4

111

67.0

1965

5.9

0.67

0.65

16.1

0.17

00.

150

900

326T

4:1

880

3822

90.2

149

89.0

1480

7.0

0.95

1.41

12.6

0.17

40.

159

3600

286T

S6:

135

2534

1091

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29.8

4700

4.5

0.42

0.98

33.8

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00.

170

3018

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6T6:

117

6535

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59.6

2940

4.5

0.44

0.75

20.3

0.15

00.

150

1200

326T

4:1

1180

3919

92.4

134

80.0

1965

7.1

0.56

0.56

13.9

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364T

4:1

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4726

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119.

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364T

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136

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447T

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184T

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1800

213T

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7.5

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254T

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7066

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256T

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3810

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3600

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324T

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287T

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Eff

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220.

094

0.06

118

0032

6T6:

117

7547

.518

93.6

118

78.9

2700

6.2

0.31

0.54

15.8

0.08

20.

082

4012

0036

5T6:

111

8555

3093

.617

711

818

006.

20.

320.

5810

.40.

081

0.05

890

040

4T6:

188

553

3691

.723

715

713

506.

10.

490.

8210

.23

0.07

90.

071

1800

364T

6:1

1775

6021

93.6

148

98.6

2700

7.6

0.30

0.46

16.0

0.06

60.

051

5012

0040

4T6:

111

8561

2694

.122

214

818

007.

80.

350.

5810

.80.

049

0.03

390

021

3T6:

188

566

2891

.729

719

713

507.

60.

410.

708.

780.

063

0.06

0

Type

RGZ

ZESD

Inve

rter D

uty,

Thre

e Ph

ase


33

Notes

• Pounds x 4.448 = NewtonsNewtons X .2248 = Pounds

• HP x .746 = KWKW x 1.341 = HP

• Torque (Lb. = Ft.) = HP X 5250RPM

• Torque (Newton - meters):Nm x .7376 - Lb. - Ft.(Lb. Ft. x 1.356 = Nm)

• HP = Torque (Lb. - Ft.) x RPM5250

• WK2 (Inertia - Lb. Ft.2) at motor Shaft = (Load RPM ÷ Mtr. F.L. RPM)2 x Load WK2

• Inertia (Kilogram - meter2):kgm2 x 23.73 = Lb. Ft.2

(Lb. Ft.2 ÷ 23.73 = kgm2)(Lb. Ft.2 ÷ .042 = kgm2)

• Power (Kilowatts):Kw x 1.341 = HP(HP ÷ 1.341 = Kw)(HP x .746 = Kw)

• Temperature:°C = 5/9 (°F - 32)°F = (9/5 x °C) + 32

• Performance Data Notes:

To find amperes at various voltages:575 V Data = 460 V Amperes x .80230 V Data = 460 V Amperes x 2.0200 V Data = 460 V Amperes x 2.3

(Amperes = Full Load, Locked Rotorand No Load Values - from data pages)

All other data (KVA Code, Efficiencies, Power Factors,Torques and Stall Times) remain same as 460 V Data(winding connections can change - rarely - with volt-age designs).

Max

.H

p @

Ohm

s/Ph

(Y e

quiv

.) C

ircui

t Par

amet

ers-

25 d

egre

es C

Torq

ueM

in.

Spee

dFL

Nom

.F.L

.Co

nst.

Max

. RPM

Cons

t. H

PRP

MFr

ame

Rang

eRP

MF.L

. Am

psN

L A

mps

F.L. E

ff.To

rque

HP

Cons

t. H

PTo

rque

X1X2

XMR1

R218

0036

5T6:

117

7571

2794

.117

711

827

009.

30.

230.

379.

20.

052

0.04

160

1200

405T

6:1

1190

7434

94.5

265

176

1800

9.6

0.26

0.45

8.4

0.03

50.

025

900

444T

6:1

890

7730

91.7

356

235

1350

9.5

0.27

0.47

7.81

0.05

00.

044

1800

405T

6:1

1780

8630

94.5

221

147

2700

11.8

0.20

0.37

9.6

0.02

80.

016

7512

0044

4T6:

111

8588

3894

.533

322

218

0011

.70.

170.

357.

30.

026

0.01

690

044

5T6:

189

095

3793

.044

529

413

5011

.90.

200.

366.

070.

034

0.03

318

0044

4T6:

117

8511

842

95.0

294

196

2700

16.0

0.14

0.33

6.7

0.01

70.

011

100

1200

445T

6:1

1185

118

4494

.544

329

518

0015

.60.

140.

296.

20.

020

0.01

390

044

7T6:

189

012

448

94.1

593

392

1350

15.8

0.15

0.29

4.80

0.02

70.

026

1800

445T

6:1

1785

143

4595

.836

824

527

0020

.00.

120.

306.

10.

015

0.00

912

512

0044

7T6:

111

8514

245

95.0

554

369

1800

19.5

0.13

0.28

6.1

0.01

70.

012

900

447T

6:1

890

159

5493

.674

249

013

5019

.80.

120.

233.

510.

022

0.02

118

0044

7T6:

117

8517

160

95.8

441

294

2700

16.0

0.08

50.

224.

60.

010

0.00

715

012

0044

9T6:

111

8517

055

95.0

665

443

1800

23.4

0.09

20.

214.

80.

013

0.00

990

044

9T6:

189

018

672

94.1

890

588

1350

23.7

0.10

0.19

3.08

0.01

80.

018

200

1800

449T

6:1

1785

223

7895

.858

839

227

0031

.90.

064

0.18

3.7

0.00

70.

005

1200

449T

6:1

1185

225

7595

.088

659

118

0031

.20.

076

0.18

3.8

0.01

00.

008


34

010

20

30

40

50

60

70

80

100

90

110

120

RG

ZZ

ES

D

VF

D 1

40

- 2

10

% FULL LOAD TORQUE

HE

RT

Z

0

20

50

70

90

110

TO

RQ

UE

vs F

RE

QU

EN

CY

%F

LT

vs F

RE

QU

EN

CY

100

80

60

30

40

10


35

RG

ZZ

ES

D

VF

D 2

50

-44

9

HE

RT

Z

010

20

30

40

50

60

70

80

90

0

20

40

60

80

100

120

%F

LT

vs F

RE

QU

EN

CYT

OR

QU

E v

s F

RE

QU

EN

CY

% FULL LOAD TORQUE


501.897.4905

Siemens Energy & Automation, Inc. Industrial Products Division14000 Dineen DriveLittle Rock, AR 72206

©2001 Siemens Energy & Automation, Inc.Specifications are subject to change without notice

More Reasons to Make Siemens your Motor of Choice

Superb Quality.In addition to incorporating quality materials,each Siemens motor undergoes more than100 separate quality inspections at the factorybefore it’s good enough to be offered to you.Personal involvement and responsibility helpput the extra reliability in Siemens motors.ISO 9001 certification assures our promise to

you.

OutstandingSupport.We pride ourselves onin-stockavailability.Our servicecenter inLittle Rock,Arkansashas thetechnical

expertise, dedication to customer ser-vice, and modification capabilities tokeep you up and running. Ask oursales engineers to help you translatethe most demanding applicationproblem into specifications — and prompt delivery.

Consistent Line.Specify Siemens withthe confidence thatevery motor, from thesmallest to the largest,offers the same qualityand reliability.

Field Support.Siemens’ authorizedservice centers,distributors and fieldsales offices are readyto respond with theexpertise you require.We also back you withan express orderprocessing system and

fast dispatch of replacement parts.

Global Presence.As a worldwide leader in electricalproducts, Siemens offers consistentsupport and service... virtually any-where in the world. For over 150years, Siemens has been deliveringthe total solution. With more than400 manufacturing sites worldwide,Siemens conducts business in 150countries.

TheCompleteSolution.Complete

solutions rely on com-prehensive product

lines. Siemensmotors are anintegral part of avast array ofindustrial productsincluding variablespeed drives, control and automationproducts, switchgear, motor control centersand power distribution equipment.

NMSA-L10005M 101TI Printed in U.S.A.

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RGZESDI Application Manual Inverter Duty AC Induction …nw.automation.wesco.com/.../Siemens_ApplicationManual_InverterDuty.pdfNMSA-L1000 RGZESDI Application Manual Inverter Duty AC