UD53 User Guide
Issue code: 53nu3
Procedure
1 Ensure the motor is unloaded (any load will create errors in the
phase-offset measurement).
2 Set parameter 16.05 Resolver phasing test at 1.
3 Enable the Drive.
The motor shaft rotates (as described before this procedure) and the
measured value of phase offset is automatically entered in parameter
16.09 Resolver phase offset. The motor shaft should rotate clockwise;
if it rotates anti-clockwise, reverse two of the phase connections from
the Drive to the motor.
If a phasing test is attempted with a motor that has high inertia, no
damping or a small load on the shaft, an incorrect value for the phase
offset will be measured. Refer to parameter 5.27 in the Unidrive
Advanced User Guide.
Note
If the Drive trips and the display indicates trip code
ENC.PH7, this indicates either of the following:
The
SIN and COS connections from the resolver are
incorrectly made
The phase sequence of the motor is reversed
Correct the connections and repeat the procedure.
Magnetizing current test (Closed-loop Vector)
Refer to Autotune in Chapter 3 Setting Up the Drive in the Unidrive User Guide,
or to parameter 5.12 in the Unidrive Advanced User Guide. If the Drive trips
while Autotune is being performed, see the Note above.
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