
Stall overvoltage prevention
This function is used to prevent the frequency converter from overvoltage during
deceleration when the load is excessively heavy or the deceleration time is ex-
cessively short.
Code
Name
Setting range
Default
Min.
Attri.
C0.24 Stall overvoltage hysteresis
voltage
0...100 V
1P: 30
1
Stop
3P: 50
C0.25 Overvoltage prevention mode
0: Stall overvoltage protection en-
abled
1: Stall overvoltage protection en-
abled
1
–
Stop
C0.26 Stall overvoltage prevention
level
1P 200 VAC: 300...390 V
3P 400 VAC: 600...785 V
385
770
0
Stop
With stall overvoltage prevention, the frequency converter detects the DC-bus
voltage and compares it with [C0.26] 'Stall overvoltage prevention level' during
deceleration:
●
[DC-bus voltage] > [C0.26]: The output frequency stops deceasing
●
[DC-bus voltage] < [C0.26] - [C0.24]: The output frequency resumes decreas-
ing
The typical behavior of stall overvoltage prevention is shown as the figure below:
Fig. 12-42: Stall overvoltage prevention during deceleration
If [C0.26] is too low, the deceleration process may fail.
VFC 3210
Bosch Rexroth AG
Functions and Parameters
DOK-RCON04-VFC3210****-IT01-EN-P
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Содержание Rexroth VFC 3210
Страница 1: ...Frequency Converter VFC 3210 Operating Instructions R912007862 Edition 01 ...
Страница 18: ...Bosch Rexroth AG VFC 3210 XVI DOK RCON04 VFC3210 IT01 EN P ...
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Страница 249: ...Fig 16 3 Assembly of the fan VFC 3210 Bosch Rexroth AG Maintenance DOK RCON04 VFC3210 IT01 EN P 221 253 ...
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Страница 281: ...Notes VFC 3210 Bosch Rexroth AG ...