beautypg.com

Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C-Frame) - ForGe Control User Manual

Page 415

background image

Rockwell Automation Publication 7000L-UM301D-EN-P - June 2014

415

Catalog Number Explanation

Appendix A

Table 31 - Encoder Selection

PowerFlex 7000 Drive
Performance (Torque
Capabilities)

The PowerFlex 7000 drives have been tested on a dynamometer to verify
performance under locked rotor, accelerating, and low speed-high torque
conditions.

Table 32

below shows the PowerFlex 7000 drive torque capabilities as

a percent of motor rated torque, independent of the drive’s momentary overload
conditions.

Table 32 - PowerFlex 7000 Drive Torque Capabilities

High Performance
Torque Control (HPTC)
Mode

Motor RPM

Minimum Tach PPR

Recommended Tach PPR

3600

1024

1024

3000

1024

1024

1800

1024

2048

1500

1024

2048

1200

2048

2048

1000

2048

2048

900

2048

4096

720

4096

4096

600

4096

4096

450

4096

8192

360

8192

8192

300

8192

8192

Standard Control Mode

3600

600

3000

600

1800

1024

1500

1024

1200

2048

1000

2048

900

2048

720

2048

600

2048

Parameter

7000 Torque Capability
without Encoder (% of
Motor Rated Torque)

7000 Torque Capability
with Encoder (% of
Motor Rated Torque)

7000 Torque Capability with
Encoder and High Performance
Torque Control (HPTC)

Breakaway Torque

90%

150%

150%

Accelerating Torque

90% (0...8 Hz)

140% (0...8 Hz)

150% (0...75 Hz)

125% (9...75 Hz)

140% (9...75 Hz)

Steady State Torque

125% (9...75 Hz)

(1)

100% (1...2 Hz)

150% (0...60 Hz)

(1)

140% (3...60 Hz)

(1)

(1) Drive will require over-sizing to achieve greater than 100% continuous torque.

Max. Torque Limit

150%

150%

150%