GE AF-650 GP - Load Sharing Configurations; Troubleshooting Fundamentals; Specific Card Connections

NB!
Switching frequencies higher than 5.0 kHz lead to automatic derating of the maximum output of the frequency converter.
F-38 Overmodulation
Option: Function:
[0] Off Select On [1] to connect the overmodulation function for the output voltage, to obtain an output voltage
up to 15% greater than the mains voltage.
Select Off [0] for no overmodulation of the output voltage, in order to avoid torque ripple on the motor
shaft. This feature may be useful for applications such as grinding machines.
[1] * On
3.3.5 F-4# Fundamental 4
Parameters to configure drive torque and current limits.
F-40 Torque Limiter (Driving)
Range: Function:
160.0 %* [0.0 - 1000.0 %] This is a true torque limit function that can run into the oversynchronous range above nominal motor
speed.
Motor magnetisation drop is automatically compensated by a current increase.
Changing par. F-40 Torque Limiter (Driving) when par. H-40 Configuration Mode is set to Speed open loop [0], par. H-66 Min. Current at Low
Speed is automatically readjusted.
F-41 Torque Limiter (Braking)
Range: Function:
100.0 %* [0.0 - 1000.0 %] This is a true torque limit function that can run into the oversynchronous range above nominal motor
speed.
Motor magnetisation drop is automatically compensated by a current increase.
F-43 Current Limit
Range: Function:
160.0 %* [1.0 - 1000.0 %] This is a true current limit function that continues in the oversynchronous range, however due to field
weakening the motor torque at current limit will drop accordingly when the voltage increase stops above
the synchronised speed of the motor.
3.3.6 F-5# Extended References
Parameters to configure drive min/max reference and reference function.
F-50 Reference Range
Option: Function:
Select the range of the reference signal and the feedback signal. Signal values can be positive only, or
positive and negative. The minimum limit may have a negative value, unless Speed closed loop [1] control
or Process [3] is selected in par. H-40 Configuration Mode.
[0] Min - Max Select the range of the reference signal and the feedback signal. Signal values can be positive only, or
positive and negative. The minimum limit may have a negative value, unless Speed closed loop [1] control
or Process [3] is selected in par. H-40 Configuration Mode.
[1] * -Max - +Max For both positive and negative values (both directions, relative to par. H-08 Reverse Lock).
AF-650 GP Programming Guide
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