Learning Advanced Features
5.44.8.1 Multi Mater Mode
Only Main Motor can be controlled by PID and Aux Motor performs the operating mode with
Follower Freq.
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
Run Cmd
Follower Freq
t
M1 OutFreq M2 OutFreq
FeedBack
Stop Freq 2
PID Reference
Start Freq 2
Stop Freq 3
M3 OutFreq
M1, M2
M3 M1M2
M1 Cmd Freq
PID Ctrl
Follower Freq
M2 Cmd Freq
M3 Cmd Freq
PID Ctrl
Follower Freq
PID Ctrl
PID Ctrl
Main Motor
Main Motor
Main Motor
Main Motor
Main Motor
Aux Motor
Aux Motor Aux Motor
Aux Motor
Aux Motor
Aux Motor
PID Output
PID Limit High
PID Ctrl
M1, M2, M3
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) and it becomes Aux Motor, accelerating based on time of [DRV-03 Acc Time]/[DRV-04 Dec
Time] until [AP1-60 Follower Freq].
At the same time, as an inverter corresponding to the next priority is turned on, the motor becomes
Main Motor(available PID control). It is possible to check the priority in [AP1-45/46 Aux Priority].
A condition that Aux Motor is turned off.
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