SV-iS7 User Manual - Inverter Drive Supermarket

1 : Aux
Chapter 8 Applied Functions
The motion sequence of the auxiliary motor starts with the auxiliary motor selected in APO-21(starting auxiliary
motor selection). When the cumulative operating time of a main and auxiliary motor exceeds the auto change
time(APO-36), the auto change condition is met. If the main motor is stopped by a stop command or sleep operation
mode after in the auto change condition, the start sequence of the auxiliary motor selected in APO-21 is changed.
For example, if there are four auxiliary motors operating and No. 4 is selected in APO-21, the start sequence of the
auxiliary motor automatically changes to No. 1. Therefore, the previous start sequence of the auxiliary motor of
4,1,2,3 changes to 1,2,3,4 and if the condition goes back to the auto change condition, the sequence changed to
2,3,4,1.
2 : Main
Automatic change is available without distinction between the main and auxiliary motors. The auto change condition
is met if the cumulative operating time of the motor connected to the inverter output exceeds the auto change
time(APO-36).
R U S V T W
Inverter
UV W
R S T
Main
motor
Auxiliary
motor1
3 phase input
Starting sequence : auxiliary 1 ->auxiliary2 -> auxiliary3 -> auxiliary 4
Stop sequence : auxiliary 4 ->auxiliary3 -> auxiliary2 -> auxiliary1
KD1 KD2 KD3 KD4
Auxiliary
motor2
Auxiliary
motor3
If the inverter is stopped by a stop command or sleep operation mode, the operating sequence of the motor
automatically changes. For example, if the starting auxiliary motor selection(APO-21) is set at 2, the inverter output
is connected to No. 2 motor. If there are four motors and the auxiliary motor operating condition is met, motors 3, 4
and 1 starts operating one after another in sequence. If the inverter stops in the auto change condition, motor No. 3
is connected to the inverter output in the next restart and the auxiliary motors operates in the sequence of 4, 1 and 2.
Auxiliary
motor4
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