5.3 Description of Function Codes 5.3.9 d codes (Applied functions 2)
Master follower operation (APR positive output limiter)
Master follower operation (APR negative output limiter)
These function codes specify the limits of APR output relative to the master motor speed. (See Fig. 5.3-51 and Fig.
5.3-52)
Specification of “999” disables the limiter.
Master
Motor
speed
Position
error
APR
(d72)
d74
d73
ASR
d71
+
Fig. 5.3-42 Operation of APR output limiter
Master follower operation (Z phase alignment gain)
If the APR output reaches the maximum frequency when the phase angle error between the master and follower
PGs (position deviation) becomes 10% of the pulse rate at the maximum frequency, that gain is assumed to be 1.0.
Usually, it is not necessary to change the factory default.
If the reduction ratio is small and the encoder pulse count is low, it is necessary to decrease the Z phase alignment
gain relative to the factory default.
Master follower operation (Offset angle between master and follower)
In follow-up mode during acceleration, the follower inverter delays starting to synchronize the Z phase with that of
the master motor by the offset angle specified by this function code.
To Next Page
Loading...
