4-210
Notes:
- In V/F control mode if the speed and torque are constant, the variable carrier frequency mode (11-01=0)
can be selected to reduce the carrier frequency based on output frequency.
- If the carrier frequency proportional gain (11-32) > 6 and 11-30 < 11-31, error message "SE01" out of
range will appear on the keypad.
- If the minimum limit (11-31) is set higher than the maximum limit (11-30), the minimum limit will be
ignored and the carrier frequency will be set at the highest limit (11-30).
- In fixed carrier frequency mode (11-01 = 2-16) parameters 11-30, 11-31 and 11-32 are not used.
- In SLV control mode, the maximum limit of the carrier frequency is fixed at 11-30.
11- 28
Frequency Gain of Overvoltage Prevention 2
Range 【1~200】%
11- 33
Rise Amount of DC Voltage Filter
Range
【
0.1~10.0】V
11- 34
Fall Amount of DC Voltage Filter
Range 【0.1~10.0】V
11- 35
Dead band Level of DC Voltage Filter
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
200V :【200~400】V
400V :【400~800】V
11- 39
Deceleration end voltage of OV prevention
Range
200V :【
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
* (When the output frequency is bigger than 300Hz, the resolution is 0.1Hz)
Overvoltage suppression is used for the application of likely causing to energy recharge.
Example: there are two situations causing excessive energy to recharge the inverter in stamping
application
(1) When cam clutch is not engaged, the motor will accelerate and start flywheel. When motor decelerates,
the rotation speed will higher than motor speed owing to the large flywheel’s inertia and then recharge
the inverter.
(2) When cam clutch is engaged, the motor will start flywheel and compress the spring. When the highest
point of the cam moves beyond its center, the spring will release the power to the flywheel and
excessive energy output recharge the inverter.
To Next Page
Loading...
