Programming
Page
D-86
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
8
9
10
A
B
C
D
E
1
2
3
4
5
6
7
Parameter Descriptions
● POLES
PREF: 134.12 Default: 10 Range: 0 to 400
Set the number of motor poles, e.g. for a 4 pole motor enter "4".
● BACK EMF
PREF: 134.13 Default: 85.6 Range: 0.0 to 8192.0 V
Set the motor’s Back EMF phase to phase, rms value (Ke, Volts rms per 1000 rpm)
On a standard PMAC motor the following equation may be used to check that the BACK EMF value is approximately correct:
BACK EMF * MAX SPEED < AC Input voltage
● R
PREF: 134.14 Default: 3.63
Range: 0.00 to 50.00
Ω
Set the motor’s resistance, between phases at 25 °C. This parameter is used within the current loop.
● L
PREF: 134.17 Default: 24.299 Range: 0.000 to 1000.000 mH
Set the motor’s inductance at maximum current. This parameter is used within the current loop and is related to the overall
proportional gain.
PHASE
PREF: 134.18 Default: 0.00 Range: 0.00 to 90.000 degrees
Set the motor’s phase shift advance at permanent current. If this parameter is unknown, value must be set to 0.
The current setpoint I is separated into two current setpoints Iq and Id, obeying the following rule :
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