To obtain higher output torque and better stabilization, especially in low speed range,
the voltage generated at the motor resistor must be taken into account. So, a voltage
boost must be provided. This voltage boost is dependent on the corresponding param‐
eters.
● [S0.21]=0.1 % ~ 20.0 %: manual torque boost
This value demonstrates the voltage boost value at zero frequency. For other fre‐
quency range, the voltage boost value is linear / square decreasing with increasing
output frequency before a certain frequency.
For linear V/F curve, this function is only valid before half of base frequency, for ex‐
ample: if "Base frequency" [S2.00] is 50.00 Hz, then torque boost function is only
valid before 25.00 Hz.
Fig.8-16: Linear V/F curve manual torque increase
For square V/F curve, this function is valid before base frequency, for example: if
base frequency is 50.00 Hz, then torque boost function is only valid before 50.00 Hz.
Bosch Rexroth AG
Parameter Settings
DOK-RCON03-EFC-3600***-IT01-EN-P
Rexroth Frequency Converter EFC 3600
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Summary of Contents for Rexroth EFC 3600
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