Learning Advanced Features
Start Freq 1
Start Freq 3
Out Freq
High Freq
M1 OutFreq
M2 OutFreq
Start Freq 2
M3 OutFreq
M2, M3, M1
Run Cmd
FeedBack
PID Reference
M1 Cmd Freq
PID Ctrl
M2 Cmd Freq
M3 Cmd Freq
Main Motor
PID Ctrl
PID Ctrl
Aux Motor
Aux Motor
PID Output
PID Limit High
More than 1min Less than 1min
M2, M1
Priority at the moment
M2 M1 M3
Initial Priority
M1 M2 M3
Priority at the moment
M2 M3 M1
M1
Stop Freq 1
Stop Freq 3
M2, M3, M1
[Aux Stop DT]
M2, M3, M1
M3
M2
M2, M3
t
Main Motor
Aux Motor
Aux Motor
Main Motor
The conditions that Aux Motor is turned on and off are same as the description of Multi Master
Mode and Multi Follower Mode.
5.44.8.4 Master Follower Interlock
As Interlock signals are sent from Serve Drive, Leader Drive puts together through Communication
Line. Every Trip such as HAND State or OFF State of Serve Drive is processed by Interlock in Leader
Drive .
This is, other Server Drives keep performing Master Follower function except the cases that it is in
HAND/OFF State or there are trips
If Leader Drive is HAND State or OFF state, Master Follower system is not activated.
In case that Pipe Broken and Interlock Trip are caused in Leader Drive, every drive operating is
stopped and Master Follower keeps performing the function except Leader Drive if there is another
Trip.
(Leader Drive executes PID control and overall system control consistently.)
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