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5 FUNCTIONS USED WITH SSCNET COMMUNICATION
5.8 Compatible Devices with SSCNETIII(/H)
*1 For details of AlphaStep/5-phase, refer to AlphaStep/5-phase instruction manual.
*2 Refer to the servo amplifier instruction manual for the servo amplifiers that can be used.
Precautions during control
■Absolute position system (ABS)/Incremental system (INC)
Set the ABS/INC settings with the AlphaStep/5-phase.
■Home position return
• Home position return operation types
The home position return methods that can be used in AlphaStep/5-phase are shown below.
: Possible, : Not possible
*1 Minor error (error code: 1979H) occurs, and home position return is not performed.
• Servo external signals when using driver home position return method
At driver home position return method home position return, check the status of the servo external signals. Also check the
external signals are OFF when external signal parameters are not set. For contacts (normally open contact/ normally
closed contact), match each setting of the AlphaStep/5-phase with the external signal parameters of the motion control
parameters. Refer to AlphaStep/5-phase instruction manual for details.
Programming tool MR Configurator2 is not available.
Use AlphaStep/5-phase editing software.
MR Configurator2 is available.
Item Precautions
Incremental system (INC) When the Multiple CPU power supply is turned OFF and then turned ON again, home position return request
turns ON, and the feed current value taken from the AlphaStep/5-phase is displayed.
Absolute
position system
(ABS)
Operating system software
version "09" or later
No restrictions.
Operating system software
version "08" or earlier
• "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".
• When control units are degree axis and the stroke limit is valid, a minor error (error code: 1A18H) occurs
when the following positioning controls are started.
(1) Instructions for pass point absolute specifications in continuous trajectory control (CPSTART
instruction) (linear interpolation, circular interpolation, helical interpolation)
(2) Position follow-up control (PFSTART instruction)
Home position return method Possible/Not possible
Proximity dog method Proximity dog method 1
*1
Proximity dog method 2
*1
Count method Count method 1
*1
Count method 2
Count method 3
*1
Data set method Data set method 1
Data set method 2
*1
Data set method 3
*1
Dog cradle method
*1
Stopper method Stopper method 1
*1
Stopper method 2
*1
Limit switch combined method
*1
Scale home position signal detection method
*1
Dogless home position signal reference method
*1
Driver home position return method
Item AlphaStep/5-phase
*1
MR-J4(W)-□B
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