LSIS 6731001500, User Manual

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Learning Advanced Features
NOTE
Auto change does not work while the auxiliary motors are operating. Auto change is operated only
when all the auxiliary motors are stopped and if all the conditions set for the auto change are met. When
the inverter stops, all motors stop operating, and the auxiliary motor with the highest priority becomes
the starting auxiliary motor. If the inverter power is turned off then turned back on, the auxiliary motor
set at AP1-43 (Starting Aux) becomes the starting auxiliary motor.
The following diagrams depict the auto change operation when AP1-55 (Auto Ch Mode) is set to ‘2
(Main),’ when the inverter operation time exceeds the auto change interval set at AP1-58. If the inverter
operation frequency is below the frequency set at AP1-57, all the auxiliary motors including the start
auxiliary motor are turned off. After the delay time set at AP1-91 (Interlock DT) elapses, the ‘Main’ auto
change is operated. After the ‘Main’ auto change, the auxiliary motor that was turned on after the
starting auxiliary motor becomes the main motor.
In the following diagrams, because auxiliary motor #1 is the starting auxiliary motor. Auxiliary motor #2
becomes the main motor after the auto change. The auxiliary motor on/off operation is identical to that
of Aux Exchange, and the ‘off’ conditions differ based on the FIFO/FILO configuration.