2-2
2-1 Wiring Check
Care must be taken for Position Control Unit and Servo Driver connection, which needs
a comparatively large number of wires. Be sure that all lines connecting the Position
Control Unit and Servo Driver are wired correctly. It will be difficult to find wiring mistakes
after completing the Servo System construction.
2-1-1 Wiring Check with I/O Monitor
• U, H, and M Series incorporate an I/O monitor function.
• Wiring mistakes can be easily found by using this function.
• The contents of I/O monitor vary with the Series. Refer to the respective operation manual.
I/O Monitor Example
SYSMAC Position Control Unit
OMNUC U-series
AC Servo Driver
Force-reset the
deviation counter.
Check the ON/OFF status of signals
in monitor mode (Un-06).
OMNUC U-series
AC Servomotor
Connection to Position Control Unit Chapter 2
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