Motor Parameter Auto-Tuning - Bosch Rexroth VFC 3210 Operating Instructions Manual

VFC 3210
Fig. 12-50: Slip frequency compensation
If the slip frequency compensation is excessively large, the motor
speed may exceed the synchronous speed.
Code Name
C1.12 Motor rated slip frequency
By default, this parameter will be set automatically according to the basic motor
parameters. The value can be adjusted with the following equations:
n = f x 60 / p
●
s n
s = (n - n ) / n
●
s n s
fs = s x f
●
n
n : synchronous speed; f
s
p: numbers of pole pairs; s: rated slip
n : rated speed; f : rated slip frequency
n s

Motor parameter auto-tuning

Function description
With the configuration of motor nameplate parameters, the frequency converter
can run in V/f control. In addition, the following parameters are calculated auto-
matically based on the motor nameplate parameters:
Code
C1.20 Motor no-load current
C1.21 Stator resistance
C1.22 Rotor resistance
DOK-RCON04-VFC3210****-IT01-EN-P
: rated frequency
n
Name
0.00...[C1.07] A
0.00...200.00 Ω
0.00...200.00 Ω
Functions and Parameters
Setting range
0.00...60.00 Hz
Setting range
Bosch Rexroth AG
Default Min. Attri.
DOM 0.01 Stop
Default Min. Attri.
DOM 0.01 Stop
DOM 0.01 Stop
DOM 0.01 Stop
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