Periodic Inspection - Mitsubishi Electric NZ2GFSS2 32D S1 User Manual

9.2

Periodic Inspection

This section describes items that must be inspected one or two times every six months to one year. When the equipment has
been relocated or modified, or cable laying has been changed, inspect the module for the items.
Item Inspection item
1 Environment Ambient
temperature
Ambient humidity
Atmosphere
2 Power supply voltage check
3 Mounting status Rattling
on a DIN rail
Terminal block Looseness and
mounting screw rattling
Terminal block Attachment of dirt
condition and foreign
matters
4 Connection Clearance
status between
solderless
terminals
*1 The temperature in the control panel where the safety remote I/O module is installed
Inspection method
Measure the temperature by using
*1
a thermometer.
Measure the humidity by using a
hygrometer.
Measure corrosive gases.
Measure the voltage across
24VDC terminals.
Check for a rattling noise of the
safety remote I/O module.
Check for the looseness of terminal
block mounting screws.
Check for attachment of dirt and
foreign matters.
Check the clearance between
solderless terminals.
Judgment criterion Corrective action
0 to 55 Create the environment that satisfies
the judgment criterion
5 to 95%RH
No corrosive gases
20.4 to 28.8VDC Change the supply power.
The safety remote I/O Remount the safety remote I/O
module does not rattle. module on the DIN rail securely.
The terminal block Retighten terminal block mounting
mounting screws must not screws securely.
be loose.
Dirt and foreign matters Remove the terminal block and clean
must not be attached to it.
terminal blocks.
The proper clearance must Provide the proper clearance.
be provided between
solderless terminals.
9 MAINTENANCE AND INSPECTION
9.2 Periodic Inspection
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