ABB RC527 3BSE008154R1 Fan Unit

Function as Current Controller In the case the device was not ordered as current controller, the adjustment ex factory is "Speed control". In some applications it may be useful to operate the TBF amplifier as a pure current controller, because a torque control is desired or the speed controller in the master control is already realized. To set the amplifier to current control or speed control set the three soldering jumpers JP9

Integral switch-off 

The integral-action component of the speed controller can be switched off at this input by injecting a high signal (15 to 30V). This may be useful, e.g. for positioning tasks. The motor does not drift slowly, but has a lower holding moment. During the normal operation, this input is inactive. The input is not to be wired for this case or is to be connected to ground.

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