36 Unidrive M400 Quick Start Guide
Issue Number: 8
The rated current parameter must be set to the maximum continuous current of the motor (taken
from the name plate). The motor rated current is used in the following:
• Current limits
• Motor thermal overload protection
• Vector mode voltage control
• Slip compensation
• Dynamic V/F control
Set to the rated speed of the motor (taken from the motor name plate). The motor rated speed is
used to calculate the correct slip speed for the motor.
The Rated Voltage (00.008) and the Rated Frequency (00.039) are used to define the voltage to
frequency characteristic applied to the motor. The Rated Frequency (00.039) is also used in
conjunction with the Motor Rated Speed (00.007) to calculate the rated slip for slip compensation.
Enter the motor rated power factor cos
(taken from the motor name plate).
The drive can measure the motor rated power factor by performing a rotating autotune (see Autotune
(Pr 00.038).
00.006 Motor Rated Current
RW Num RA US
OL
0.00 to Drive Rating A
Maximum Heavy
Duty Rating A
RFC-A
00.007 Motor Rated Speed
RW Num US
OL
0.0 to 33000.0 rpm
50 Hz default: 1500.0 rpm
60 Hz default: 1800.0 rpm
RFC-A
50 Hz default: 1450.0 rpm
60 Hz default: 1750.0rpm
00.008 Motor Rated Voltage
RW Num RA US
OL
0 to 240 V or 0 to 480 V
110 V drive: 230 V
200 V drive: 230 V
400 V drive 50 Hz: 400 V
400 V drive 60 Hz: 460 V
RFC-A
00.009 Motor Rated Power Factor
RW Num RA US
OL
0.00 to 1.00
0.85
RFC-A
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