12. Program Example - Mitsubishi FX3U-20SSC-H User Manual

FX -20SSC-H Positioning Block User's Manual
3U

12. Program Example

STARTUP AND MAINTENANCE
PRECAUTIONS
• Do not touch any terminal while the PLC's power is on.
Doing so may cause electrical shock or malfunctions.
• Before cleaning or retightening terminals, externally cut off all phases of the power supply.
Failure to do so may expose you to shock hazard.
• Before modifying the program under operation or performing operation for forcible output, running or stopping, carefully read the manual, and
sufficiently ensure the safety.
An operation error may damage the machine or cause accidents.
• To test Zero-return, JOG operation and Positioning data, throughly read this manual, ensure the safe system operation
An operation error may damage the machine or cause accidents.
STARTUP AND MAINTENANCE
PRECAUTIONS
• Do not disassemble or modify the PLC.
Doing so may cause failures, malfunctions or fire.
For repair, contact your local Mitsubishi Electric distributor.
• Before connecting or disconnecting any extension cable, turn off power.
Failure to do so may cause unit failure or malfunctions.
• Before attaching or detaching the following devices, turn off power.
Failure to do so may cause device failure or malfunctions.
- Peripheral devices, expansion boards and special adapters
- I/O extension blocks/units and terminal blocks
138
12 Program Example