Torque boost setting
The torque boost function is used to obtain higher output torque and better sta-
bilization by boosting the output voltage, especially at low speed.
Code Name Setting range Default Min. Attri.
C2.21 Torque boost setting
0.0 %: Automatic boost
0.1... 20.0 %: Manual boost
0.0 0.1 Run
C2.22 Automatic torque boost factor 0...320 % 50 1 Run
C2.00 V/f curve mode
0: Linear
1: Square
2: User-defined
0 – Stop
C1.08 Motor rated frequency 5.00...400.00 Hz 50.00 0.01 Stop
● Manual torque boost with linear or user-defined V/f curve
In this V/f curve, the output voltage starts to be boosted when the output fre-
quency is lower than half of [C1.08].
Example: If [C1.08] = 50.00 Hz, then torque boost function is active when out-
put frequency is lower than 25.00 Hz.
Fig. 12-64: Manual torque boost with linear or user-defined V/f curve
[C2.21] is the voltage boost value at 0.00 Hz. The actual voltage boost values for
other frequency points decreases in linear along with output frequency increase.
● Manual torque boost with square curve
In this square V/f curve, the output voltage starts to be boosted when the out-
put frequency is lower than [C1.08].
Example: If [C1.08] = 50.00 Hz, then torque boost function is active when the
output frequency is lower than 50.00 Hz.
Bosch Rexroth AG
Functions and Parameters
EFC x610 Series
220/389
DOK-RCON03-EFC-X610***-IT05-EN-P
To Next Page
Loading...
Need help?
General
