Appendix a - technical specifications, Ppendix, Technical specifications – Rockwell Automation Liqui-Flo AC Power Modules User Manual

Page 91

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Technical Specifications

A-1

A

PPENDIX

A

Technical Specifications

Table A.1 – Service Conditions

AC Line Distribution System Capacity
(maximum) for 460 VAC Units

85,000 amps symmetrical fault current capacity. Short circuit
rating may be limited to 65,000 amps if a circuit breaker is
used instead of fuses.

Control Method

All-digital vector, sinusoidal pulse-width-modulated (PWM)

Displacement Power Factor

0.96

Line Frequency

50/60Hz (

±

2 Hz)

Line Voltage Variation

-10% to +10%

Line Dip Ride-Through

FVC: Maximum 500 milliseconds

V/Hz, SVC: Adjustable up to 999.9 seconds (See P.042)

Motor Lead Lengths

76 meters (250 feet) total

Remote Operator Control Wire Length

Up to 303 meters (1000 feet) from the drive

Analog Speed Reference Resolution

1/1024 (10 bits) 0.1%

Acceleration Adjustment Range

0.1 to 999.9 seconds (within the ability of current)

Carrier Frequency

2 kHz, 4 kHz. or 8 kHz (software-selectable)

Current Limit Adjustment

Vector: U.006 to 150% (based on motor nameplate rating)

V/Hz: 50% to 110% (based on drive nameplate rating)

Service Factor

1.0

Speed Adjustable Range

From 0 RPM to maximum speed (vector)

Speed Regulation

Vector: 0.01% FVC, 0.5% SVC (steady state)

V/Hz: Motor slip dependent

Speed Reference Resolution

1 RPM with local keypad, -4095 to +4095 counts with a
network or serial reference

Torque Control Response

180 to 220 Hz

Torque Linearity

+3% with optimal parameter setting (typical) (see parameter
U.005)

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