Copley Controls 7228AC, User Manual

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3-30 Getting Started
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The Command Current is used to move the motor.
The value derived during auto phasing is sufficient. If
set to low then improper phasing may result.
•
The value for Phase counts must be correct.
•
The Phase correction mode can be turned on. This
will use the encoder index to correct thecommutation
phase angle. This will correct for noise on the
encoder line or a non integer number of phase
counts.
•
Use PWM% limit , current limits , and slow blow
fuses o protect high cost motors.
•
Encoder Polarity , normally low pulse high
index “ _-_ ” , or normaly high pulse low index “ -_- ” ,
must be set correctly for proper algorithmic phasings,
or phase correction. Also, the location of the index
pulse A+B = Index , must be set correctly for proper
detection of the index pulse.
Example: If the index pulse is high during the time
that encoder line A and B are high then select “ 11 ”
for proper A+B Index .
Method A: Software Phase Initialization
1. Start with no load.
2. Set Commutation mode to Sinusoidal.
3. Set Phase mode to algorithmic.
4. Set Phase Correct mode to On.
5 . Set Phase Init Time to 4000 ms.
6. Set Command % to sufficient value.
7. On Amplifier Status Now! screen, select Amp
OK >> Phase initialized >> Attempt Phase
initialzation .