FATEK M Series User Manual page 9

Chapter 1 List of Expansion Modules
Precautions
Do not touch the power module when the PLC is under energized status or when the
power source is disconnected. At this time, the power module might still present
extremely high temperature that can cause a scorching injury.
When connecting with the terminal board of the power module, the cable should be
secured with the appropriately sized Ferrule. If the cable is loose, it may lead to
burning or the failure of the power module.
The online editing shall be allowed only after confirming that the extended PLC cycle
duration will not result in any adverse impact or the system may not be able to read
the input signal.
After confirming that the I/O terminal is safe, you may transmit the required
parameters to other terminals such as PLC setting, I/O table and I/O register data,
etc. Otherwise, it may lead to unexpected actions if transmitting or modifying the
aforesaid data before that.
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M-Series PLC Expansion Module User Manual