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Fieldbus control description

When torque or speed reference scaling is selected (by parameter 50.04 FBA REF1

MODESEL / 50.05 FBA REF2 MODESEL), the fieldbus references are 32-bit

integers. The value consists of a 16-bit integer value and a 16-bit fractional value.

The speed/torque reference scaling is as follows:

Reference Scaling Notes

Torque reference FBA REF / 65536

(value in%)

Final reference is limited by parameters 20.06 MAXIMUM

TORQUE and 20.07 MINIMUM TORQUE.

Speed reference FBA REF / 65536

(value in rpm)

Final reference is limited by parameters 20.01 MAXIMUM

SPEED, 20.02 MINIMUM SPEED and 24.12 SPEED

REFMIN ABS.

Position reference

See parameter group 60 POS FEEDBACK.

Velocity reference

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ABB FPBA-01 Handbuch Seite 18