YOKOGAWA FA-M3V e-RT3 Plus, Hardware Manual

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A5-1
IM 34M06C11-01E
A5. Maintenance and Inspection
A5.1 Replacing Modules
 Spare Modules
Always have spare modules on hand for immediate countermeasures against failures in
the FA-M3.
 Procedure for Replacing a Module
Be sure to turn off the power before replacing any module. When replacing a module,
do not change the type and location of the module.
Module replacement
Turn off power of unit
Replace
module
Turn on power
End
FA050101.VSD
Figure A5.1 Module Replacement Procedure

Note the module replacement
Perform the following checks before replacing a module when there is an error:
- Check whether the load conforms to the specifications.
- Check whether the surge protector, if any, is functioning normally.
- Check for cabling errors such as wrong polarity orientation of a diode.
Note
The FA-M3 will fail again after replacing any module when there is a problem with the
external wiring, no surge protector is installed or a diode is connected in the reverse
polarity. Be sure to solve problems with the external equipment before replacing the
module.