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HPK-Series High
Power Asynchronous
Servo Motors
Induction Motor Technology Optimized
for Servo Systems
Copyright © 2007 Rockwell Automation, Inc. All rights reserved.
“Asynchronous” vs. “Synchronous”
Asynchronous
• AKA: “Induction Motor”
• Speed:
– Base speed
– Max speed
Synchronous
• AKA: “Permanent Magnet Motor”
• Speed:
– Rated speed
– Max speed
• Torque:
• Torque:
– S1: continuous duty
– S2: 60 minute duty
– S3: 30 minute duty
– Tc: Continuous torque
– Tp: Peak torque
• Duty Cycle:
• Duty Cycle:
– “Service Factor”
– Ratio of peak to continuous torque
– Trms: RMS torque
– Factors in Tc, Tp and dwell time
Copyright © 2007 Rockwell Automation, Inc. All rights reserved.
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“Asynchronous” vs. “Synchronous”
Asynchronous
• “Slip Frequency”
– Rotor rotates at slightly lower frequency
than rotating electromagnetic field
Synchronous
• No “Slip Frequency”
– Rotor rotates at same frequency as
rotating electromagnetic field
• Example:
– Rotor commanded to rotate at 1750 RPM
– Electromagnetic field needs to rotate at
1800 RPM
Copyright © 2007 Rockwell Automation, Inc. All rights reserved.
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High Performance Solution
HPK- Series
• Provide both high power and precision in an economical package
– Combines the cost advantages and high power of an asynchronous motor with the
control capabilities of a synchronous motor
• Offer high acceleration / deceleration capability for very large, high inertia
loads
– Peak torque = 2.0x continuous torque
– Low inertia rotor (relative to traditional induction motors)
• Consistent “look and feel” of Kinetix integrated motion
– Common programming, commissioning and troubleshooting environment
• Combine HPK-Series motors with the Kinetix 7000 high power servo drive
– High performance solution up to 150 kW
• Available in 7 frame sizes
– 400 and 460V motors provide Continuous torque from 96 to 955 Nm (849 to 8445 lb-in.)
and peak torque from 192 to 1927 Nm (1699 to 17042 lb-in.) with base speeds of 1500
and 3000 rpm
Copyright © 2007 Rockwell Automation, Inc. All rights reserved.
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Typical Performance – HPK-Series Motors
• Special windings provide
“permanent magnet”
performance out to base
speed
• Peak torque = 2.0x
continuous torque
_ _ _-B1308C-AS42AA Performance with 2099-BMO7
at 460 VAC Drive Input, 40C Motor Ambient and 750 V DC Drive Output
280.0
260.0
240.0
220.0
Tcont 460V Nm
TORQUE (Nm)
(1.0 Nm = 8.85 lb-in)
200.0
Tpeak 460V Nm
180.0
Tpeak 750 V DC Nm
160.0
140.0
120.0
100.0
80.0
60.0
40.0
20.0
0.0
0
150
300
450
600
Copyright © 2007 Rockwell Automation, Inc. All rights reserved.
750
900
SPEED (RPM)
1050
1200
1350
1500
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HPK-Series Product Features and Benefits
• Servo motor performance in a higher
power range
– 17 kW (23 Hp) through 150 kW (200 Hp)
• Low rotor inertia (relative to traditional
induction motors)
– Higher acceleration / deceleration
– Increased throughput
• 2.0x service factor (compared to 1.2x for
traditional induction motors)
– Higher peak torque for comparable frame
size
– Higher acceleration / deceleration
capability
– Increased throughput
• Asynchronous servo motor
• Totally enclosed blower cooled (TEBC)
– Higher torque output per package size
Copyright © 2007 Rockwell Automation, Inc. All rights reserved.
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HPK-Series Product Features and Benefits
• Standard IEC flange and/or foot mount
– Foot and flange mounts up to 56 Hp (1500 RPM winding) / 75 Hp (3000 RPM
winding)
– Foot mount only for larger motors
• IP54 environmental rating
– Limited by environmental rating of blower motor
• Windings Optimized for use with the Kinetix 7000
– Speed/Torque curve comparable to typical synchronous servo motors
• Continuous, constant torque out to base speed
• Peak torque = 2.0x continuous torque
– 400V & 460V AC Windings
• Standard Winding: 1500 RPM base speed
• High Speed Winding: 3000 RPM base speed
Copyright © 2007 Rockwell Automation, Inc. All rights reserved.
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HPK-Series Product Features and Benefits
• Agency listings and certifications
– UL, CSA, CE
• Internal holding brake option
• Single- and multi-turn absolute feedback
– Eliminates the need for homing
• Smooth performance and higher inertia mismatch
– High resolution encoder feedback
– Up to 2 million counts per revolution
• Extremely robust encoder package
– Unique to HPK- series motors
• Connections
– Encoder Feedback: Rotatable DIN M23 right-angle connectors
– Brake and / or Motor Power: Junction Box
Copyright © 2007 Rockwell Automation, Inc. All rights reserved.
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Typical Applications
• High power packaging
• Converting / non-woven industry
– Winders / unwinders / rewinders
– Metered wind
– Sheeters
• Flying knife
• Material handling
– ASRS
– Gantries
– Vertical Lift units
Copyright © 2007 Rockwell Automation, Inc. All rights reserved.
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Typical Applications
• Metal forming
– Tandem and transfer press control (die, cushion system, blanking)
– Stacking / de-stackers
– Hydroforming
• Injection molding
– Reciprocating screw and ram injector
– Mold control
– Clamping units
Copyright © 2007 Rockwell Automation, Inc. All rights reserved.
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Product Support
•
•
•
•
Serviced via network of authorized repair centers
Broad application experience to assist with your solution
Locations around the world
Call customer service for nearest location
Copyright © 2007 Rockwell Automation, Inc. All rights reserved.
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