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Ndrive HL User’s Manual
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www.aerotech.com 4-29
Figure 4-25.
Optimized Resolver Feedback Configuration
4.4.1.3.
Configuring the Commutation Initialization
The commutation of brushless motors with resolver feedback may be initialized two
ways. The first method uses the number of motor pole pairs combined with the maximum
resolution of the R/D board to determine an initial commutation position. The second
method initializes the motor normally using the Hall effect feedback signals.
Setting the CfgMotType axis parameter to Auto-MSET can
be used if the R/D Auto-configuration or Hall effect signals
cannot be used.
R/D auto-configuration typically CANNOT be used with
inductosyns because they have multiple electrical cycles
per revolution of the motor. R/D Auto-configuration will
ONLY work if you have EXACTLY one cycle of the Sine
and Cosine signals per revolution of the motor.
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