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14 Test Operation, Adjustment, Maintenance and Troubleshooting
199
FX3G Series Programmable Controllers
User's Manual - Hardware Edition
11
High-Speed
Counters
12
Output Wiring
13
Wiring for
Various Uses
14
Test Run,
Maintenance,
Troubleshooting
15
Input/Output
Powered
Extension Units
16
Input/Output
Extension
Blocks
17
Extension
Power Supply
Unit
18
Other Extension
Units and
Options
19
Display Module
20
Terminal Block
14. Test Operation, Adjustment, Maintenance and
Troubleshooting
STARTUP AND MAINTENANCE
PRECAUTIONS
• Do not touch any terminal while the PLC’s power is on.
Doing so may cause electric shock or malfunctions.
• Before cleaning or retightening terminals, cut off all phases of the power supply externally.
Failure to do so may cause electric shock.
• Use the battery for memory backup correctly in conformance to this manual.
- Use the battery only for the specified purpose.
- Connect the battery correctly.
- Do not charge, disassemble, heat, put in fire, short-circuit, connect reversely, weld, swallow or burn the battery, or apply excessive
forces (vibration, impact, drop, etc.) to the battery.
- Do not store or use the battery at high temperatures or expose to direct sunlight.
- Do not expose to water, bring near fire or touch liquid leakage or other contents directly.
- Incorrect handling of the battery may cause heat excessive generation, bursting, ignition, liquid leakage or deformation, and lead
to injury, fire or failures and malfunctions of facilities and other equipment.
• Before modifying or disrupting the program in operation or running the PLC, carefully read through this manual and the associated
manuals and ensure the safety of the operation.
An operation error may damage the machinery or cause accidents.
• Do not change the program in the PLC from two or more peripheral equipment devices at the same time. (i.e. from a programming tool
and a GOT)
Doing so may cause destruction or malfunction of the PLC program.
STARTUP AND MAINTENANCE
PRECAUTIONS
• Turn off the power to the PLC before attaching or detaching the memory cassette. If the memory cassette is attached or detached
while the PLC’s power is on, the data in the memory may be destroyed, or the memory cassette may be damaged.
• Do not disassemble or modify the PLC.
Doing so may cause fire, equipment failures, or malfunctions.
For repair, contact your local Mitsubishi Electric representative.
• Turn off the power to the PLC before connecting or disconnecting any extension cable.
Failure to do so may cause equipment failures or malfunctions.
• Turn off the power to the PLC before attaching or detaching the following devices.
Failure to do so may cause equipment failures or malfunctions.
- Peripheral devices, display module, expansion boards, and special adapters
- Extension units/blocks and FX Series terminal blocks
- Battery and memory cassette
DISPOSAL PRECAUTIONS
• Please contact a certified electronic waste disposal company for the environmentally safe recycling and disposal of your device.
When disposing of batteries, separate them from other waste according to local regulations.
(For details of the Battery Directive in EU countries, refer to Appendix E)
TRANSPORTATION AND
STORAGE PRECAUTIONS
• When transporting the FX3G Series PLC incorporating the optional battery, turn on the PLC before shipment, confirm that the battery
mode is set using a parameter and the ALM LED is OFF, and check the battery life.
If the PLC is transported with the ALM LED on or the battery exhausted, the battery-backed data may be unstable during
transportation.
• The PLC is a precision instrument. During transportation, avoid impacts larger than those specified in the general specifications
(section 4.1). Failure to do so may cause failures in the PLC.
After transportation, verify the operations of the PLC.
• When transporting lithium batteries, follow required transportation regulations.
(For details of the regulated products, refer to Appendix D)