Mitsubishi Electric MELSEC Q Series Programming Manual page 581

APPENDICES
(5) Precautions during control
(a) Absolute position system (ABS)/Incremental system (INC).
Match the ABS/INC setting in each setting of VC series and Motion CPU.
Otherwise, a minor error (error code: 902) occurs, and it is controlled by the
setting of VC series side.
ABS/INC setting for the VPH series is set on the VPH series side.
1) Absolute position system (ABS)
When control units are degree axis and the stroke limit is valid, operation
may not be normal when the following positioning controls are started.
Do not use the following controls.
Operating system software
"00L" or later
"00K" or later
2) Incremental system (INC)
There are no restrictions.
(b) Home position return
1) Home position return operation types
The home position return methods that can be used in VC series/VPH
series are shown below.
Proximity dog method
Count method
Data set method
Dog cradle method
Stopper method
Limit switch combined method
Scale home position signal detection method
Dogless home position signal reference method
Driver home position return method
(Note-1): Minor error (error code: 133) occurs, and home position return is not performed.
(Note-2): Minor error (error code: 194) occurs, and home position return is not performed.
version
• Absolute specification instructions in speed-switching
control (VSTART instruction)
• Instructions for pass point absolute specifications in
constant-speed control (CPSTART instruction) (linear
interpolation, circular interpolation, helical interpolation)
• Position follow-up control (PFSTART instruction)
• Absolute specification instructions in speed-switching
control (VSTART instruction)
Home position return method
Proximity dog method 1
Proximity dog method 2
Count method 1
Count method 2
Count method 3
Data set method 1
Data set method 2
Stopper method 1
Stopper method 2
APP - 90
Positioning control
Possible/Not possible
(Note-1)
(Note-1)
(Note-1)
(Note-2)
: Possible, : Not possible