July 2013 7.9 Field orientation 1111
Plausibility test This tests several machine parameters and parts of the circuitry for their
plausibility:
Encoder line count
Number of pole pairs
Rotational direction of the electrical field
Traverse distance per electrical revolution
The following messages can appear during the plausibility test:
8630 Field orient. successful
Indicates that the field angle was successfully determined and stored in
MP2256.x.
8B10 Wrong traverse direction
Indicates that the rotational direction of the electrical field does not match
the counting direction of the encoder.
Error fix: Change the entry in MP2204.x.
8B20 Error field orientation
Indicates that no usable measurement results could be determined.
A common cause is incorrect values in MP331.x, MP332.x and MP1054.x.
A further cause could be that the motor is moving against a resistance (e.g.
brake is still active, bellows, limit stop) or that the mechanics are too stiff.
This method for determining the field angle is recommended for
commissioning, new designs, and other similar situations.
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