APP - 120
APPENDICES
(5) Precautions during control
(a) Absolute position system (ABS)/Incremental system (INC).
Set the ABS/INC settings with the AlphaStep/5-phase
1) Incremental system (INC)
When the Multiple CPU system power supply is turned OFF and
turned ON again, the home position request turns ON, and the feed
current value from the AlphaStep/5-phase is displayed.
2) Absolute position system (ABS)
a) "3: Servo command value" and "4: Feedback value" for [Pr.300]
Servo input axis type cannot be used. If they are used the current
value of the servo input axis may not be correctly restored therefore
use "1: Feed current value" and "2: Actual current value".
b) When control units are degree axis and the stroke limit is valid, the
following positioning controls may not operate correctly when they
are started, therefore do not use them.
Operating system software
version
Positioning control
"00L" or later
• Absolute specification instructions in speed-switching
control (VSTART instruction)
"00K" or later
• 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)
(b) Home position return
1) Home position return operation types
The home position return methods that can be used in AlphaStep/5-
phase are shown below.
Home position return method Possible/Not possible
Proximity dog method
Proximity dog method 1
(Note-1)
Proximity dog method 2
(Note-1)
Count method
Count method 1
(Note-1)
Count method 2
Count method 3
(Note-1)
Data set method
Data set method 1
Data set method 2
(Note-1)
Dog cradle method
(Note-1)
Stopper method
Stopper method 1
(Note-1)
Stopper method 2
(Note-1)
Limit switch combined method
(Note-1)
Scale home position signal detection method
(Note-1)
Dogless home position signal reference method
(Note-1)
Driver home position return method
: Possible, : Not possible
(Note-1): Minor error (error code: 194) occurs, and home position return is not performed.
To Next Page
Loading...
