SV-iS7 User Manual - Inverter Drive Supermarket

Chapter 8 Applied Functions
APO-41 Aux Acc Time, APO-42 Aux Dec Time : The main motor stops PID control and normal acceleration and
deceleration operation when the auxiliary motor runs or stops. When the auxiliary motor runs, the main motor
decelerates to the decelerating frequency of the auxiliary motor for the decelerating time set at APO-42. Inversely,
when the auxiliary motor stops, the main motor accelerates to the starting frequency for the accelerating time set at
APO-41. For details on the PID control of the main motor, see page 8-12.
2) Automatic Change of Motor(Auto Change)
The motion sequence of the main and auxiliary motors can be automatically changed. If only a particular motor
continues running, the life of the motor might be affected. Therefore the motion sequence can be reversed to keep
the use time of the motors equal.
APO-35 Auto Ch Mode : Selects the type of motions of the automatic change.
0 : None
The motion sequence of the auxiliary motor starts with the auxiliary motor selected in APO-21(starting auxiliary motor
selection) and the automatic change function is not active.
8-58
Main
motor
output
frequency
Output
terminal
Main
motor
ouput
frequency
Output
terminal
Starting frequency of the
auxiliary motor
APO-23~26
Stop delay time of the
auxiliary motor
APO-31
auxiliary motor starts
Starting frequency of the
auxiliary motor
APO-27~30
Main motor acceleration time when the pump number increases
APO-42
stop sequence of the auxiliary motor following load increase
Stop delay time of the
auxiliary motor
APO-32
auxiliary motor stops
Starting frequency of the
auxiliary motor
APO-23~26
Stop frequency of the
auxiliary motor
APO-27~30
Main motor acceleration time when the pump number decreases
APO-41
Stop sequence of the auxiliary motor following load
decrease