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8. TANDEM DRIVE
8. TANDEM DRIVE
Tandem drive is that 1 axis is physically connected to and driven by 2 motors. The position board provides the
same position command to the 2 axes set up for tandem drive.
Tandem drive can be set up for a maximum of 8 sets (16 axes).
8.1 Drive modes
For tandem drive there are 2 drive modes; synchronous mode and non-synchronous micro-adjustment control
mode.
Types of operation that can be performed for each mode are as follows.
Operation mode
Drive Modes
Synchronous mode non-synchronous mode
JOG operation
Incremental feed
Automatic operation
Linear interpolation
operation
Home position return (Note)
Home position reset
Note. Home position return operation can be performed only using the following
home position return method. If a different method is used to perform home
position return, the tandem drive excursing error (operation alarm 52, detail 01)
occurs.
Compatible home position return method
Dog cradle method
Dog method
Data set method
Dog front end method
Z-phase detection method
Scale home position signal detection method
Scale home position signal detection method 2
POINT
Performing start operation with a non-compatible mode during a non-
synchronous micro-adjustment mode makes an alarm for tandem drive non-
synchronous mode (operation alarm 51, detail 01) occur.