Learning Advanced Features
If the real operating frequency of Main Motor is lower than the frequency set in Stop Freq, AP1-
44(Aux Motor Run) decreases(-1) after the time set in AP1-54(Aux Stop DT) and the present Main
Motor becomes Aux Motor, decelerating based on time of [DRV-04 Dec Time] until 0Hz.
At the same time, the motor corresponding to the previous priority becomes Main Motor(available
PID control). It is possible to check the priority in [AP1-45/46 Aux Priority].
5.44.8.2 Multi Follower Mode
It is a mode to control motors turned on with the same PID output frequency.
The picture below shows that the priority is “Motor1 (M1)Motor2 (M2)Motor3 (M3)”.
(The priority can be changed automatically according to operating time).
Start Freq 1
Start Freq 3
Out Freq
High Freq
t
M1 OutFreq
M2 OutFreq
Stop Freq 2
Start Freq 2
Stop Freq 3
M3 OutFreq
Run Cmd
FeedBack
PID Reference
M1 Cmd Freq
PID Ctrl
M2 Cmd Freq
M3 Cmd Freq
Main Motor
M1, M2
M3
M2
PID Ctrl
PID Ctrl
Main Motor
Main Motor
Main
Motor
Aux Motor Main Motor
Aux Motor
Aux Motor
Aux Motor
Aux MotorAux Motor
PID Output
PID Limit High
M1
M1, M2
A condition that extra Aux Motor is turned on .
After a real operating frequency reaches the frequency set in Start Freq belonging to the next
priority number and the time set in AP1-53(Aux Start DT) passes, AP1-44(Aux Motor Run) increases
(+1). In addition, Aux Motor with the next priority of Main Motor is turned on and the new operating
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