User`s manual

apfiff09 marine vacon • 145
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6
7.6.5 DC Link handling
P2.6.5.1 Overvoltage controller ID607
The parameter selects the behaviour of the overvoltage controller in open loop control. It
also activates the closed loop overvoltage controller but the operation is always of type
in closed loop control modes.
0 - Controller switched off
Both open and closed loop overvoltage controllers are off.
1 Activated P-Controller type operation
Both open and closed loop controllers are activated.
Open loop controller is a P-type controller.
Closed loop controller is a PI-type controller.
2 Activated PI-Type controller
Both open and closed loop controllers are activated.
Open loop controller is a PI-type controller.
Closed loop controller is PI-type controller (as in selection 1).
P2.6.5.2 Overvoltage Reference Select ID1262
Overvoltage reference level depending on the status of the brake chopper.
In closed loop control, the
The parameter can be found in the CL setting parameter group.
ID1262
Brake chopper in use
Brake chopper not in use
0 /
High Voltage
500 V Unit: 844 V
690 V Unit: 1164 V
500 V Unit: 797 V
690 V Unit: 1099 V
1 /
Norm.Voltage
1.25*Estimated DC nominal voltage
1.18*Estimated DC nominal voltage
2 /
BrakeChLevel
1.07*brake chopper level
Brake chopper level