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10 Rockwell Automation Publication 750-TD001H-EN-P - June 2013

PowerFlex 750-Series AC Drives

Control Method: Sine coded PWM with programmable carrier frequency. Ratings apply to all drives.

Carrier Frequency: Default Settings:

Frames 1…4:

Frames 5…10:

Settings:

Frames 1…6:

Frame 7:

Frames 8…10:

4 kHz

2 kHz

2, 4, 8, 12 kHz

2, 4, 8 kHz

2, 4 kHz

Output Voltage Range: 0 to rated motor voltage

Output Frequency Range: 0…325 Hz @ 2 kHz carrier

0…650 Hz @ 4 kHz carrier

Frequency Accuracy

Digital Input:

Analog Input:

Within ±0.01% of set output frequency

Within ±0.4% of maximum output frequency

Frequency Control: Speed regulation - with Slip Compensation (V/Hz & Sensorless Vector modes)

0.5% of base speed across 40:1 speed range, 40:1 operating range

Speed Control: Without feedback (Flux Vector mode), 0.1% of base speed across 100:1 speed range, 120:1 operating range,

50 rad/sec bandwidth

With feedback (Flux Vector mode), 0.001% of base speed across 100:1 speed range, 1000:1 operating range,

190 rad/sec bandwidth

Torque Regulation: Without feedback (Flux Vector mode), ±5%, 600 rad/sec bandwidth

With feedback (Flux Vector mode), ±2%, 2500 rad/sec bandwidth

Selectable Motor Control: - Standard V/Hz with full custom capability

- Sensorless Vector with full tuning

- Flux Vector with and without a feedback device

- Induction motor control

- Surface mount permanent magnet motor control with encoder feedback (Frames 1…10)

- Surface mount permanent magnet motor control without encoder feedback (Frames 1…7)

- Internal permanent magnet motor control with encoder feedback (Frames 1…10)

Stop Modes: Multiple programmable stop modes including - Ramp, Coast, DC-Brake, Ramp-to-Hold, Fast Braking, and

Current Limit Stop.

Accel/Decel: Two independently programmable accel and decel times. Each time may be programmed from 0 to 3600

seconds in 0.1 second increments (0 to motor nameplate speed).

S Curve Time Adjustable from 0 to 100% of ramp time (normal duty rating)

Intermittent Overload:

Light Duty (Frames 8…10 Only)

Normal Duty

Heavy Duty

110% Overload capability for up to 1 minute out of 10 minutes

150% Overload capability for up to 3 seconds out of 60 seconds

150% Overload capability for up to 1 minute out of 10 minutes

180% Overload capability for up to 3 seconds out of 60 seconds

Current Limit Capability: Proactive Current Limit programmable from 20 to 160% of rated output current. Independently

programmable proportional and integral gain.

Electronic Motor Overload Protection: Class 10 motor overload protection according to NEC article 430 and motor over-temperature protection

according to NEC article 430.126 (A)(2). UL 508C File E59272.

Category Specification

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