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4-190
11-14
OV Prevention Level
Range
230V :
【
200~400
】
V
400V :
【
400~800
】
V
11- 17
Acceleration/Deceleration Gain
Range
【
0.1~10.0
】
When 11-40=3, the inverter will increase the output frequency to prevent an
“OV” condition. The output frequency
in this mode will not exceed the maximum output frequency of motor 1, set 01-02 according to the application.
Parameter 11-14 sets the Regeneration prevention voltage level. If an
“OV” condition still occurs when 11-40=3,
increase the value of 11-17 in steps of 0.1 V.
Note:
If this level is set too low over-voltage protection will not work properly and the actual deceleration time will
be extended.
Regeneration prevention response time can be adjusted by increasing 11-17. This will improve the response to
voltage changes on the DC bus but may cause output frequency instability.
11-28
Frequency Gain of Over Voltage Prevention 2
Range
【
1~200
】
%
11-33
DC Voltage Filter Rise Amount
Range
【
0.1~10.0
】
V
11-34
DC Voltage Filter Fall Amount
Range
【
0.1~10.0
】
V
11-35
DC Voltage Filter Dead-band Level
Range
【
0.0~99.0
】
V
11-36
Frequency gain of OV Prevention
Range
【
0.000~1.000
】
11-37
Frequency limit of OV Prevention
Range
【
0.00~599.00
】
Hz
11-38
Deceleration start voltage of OV prevention
Range
230V:
【
200~400
】
V
400V:
【
400~800
】
V
11-39
Deceleration end voltage of OV Prevention
Range
230V:
【
300~400
】
V
400V:
【
600~800
】
V
11-40
OV Prevention Selection
Range
【
0
】
:
Disable
【
1
】
:
OV prevention Mode 1
【
2
】
:
OV prevention Mode 2
【
3
】
:
OV prevention Mode 3
Overvoltage suppression is used in application that will likely cause regenerative energy.