Bosch Rexroth EFC 3600 Operating Instructions Manual page 118

Bosch Rexroth AG
Parameter Settings
Model
1P 200 V
3P 400 V
When the brake chopper is controlled by the hysteresis voltage, the switching pattern is
shown as below:
Fig.8-42: Switching pattern_Hysteresis voltage
When the duty cycle is set to 100 %, the switching will be only according to the hystere‐
sis. It means that there is no switching after 10ms (100 Hz).
E4.02 Stall overvoltage prevention level
200 V class: 300 ~ 390 V
Setting range
400 V class: 600 ~ 885 V
Minimum unit 1 V
200 V class: 390 V
Factory default
400 V class: 885 V
With stall overvoltage protection, the frequency converter detects the DC bus voltage
during deceleration and compares it with "Stall overvoltage prevention level" [E4.02].
● When the DC bus voltage exceeds the stall over voltage protection level, the output
frequency stops decreasing.
● When the DC bus voltage is lower than the stall overvoltage protection level, the fre‐
quency converter resumes deceleration
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DOK-RCON03-EFC-3600***-IT01-EN-P
Rexroth Frequency Converter EFC 3600
Hysteresis voltage [V]
10
15