Chapter 9 Maintenance And Inspection; Daily Inspection - Mitsubishi Electric NZ2GFSS2 32D S1 User Manual

9
MAINTENANCE AND INSPECTION
This chapter describes the maintenance and inspection of the safety remote I/O module.
Read [Startup and Maintenance Precautions] in the safety precautions carefully before performing the
inspection, and observe the precautions.
9.1

Daily Inspection

The following table lists the items that must be inspected on a daily basis.
Item Inspection item
1 Mounting status Rattling
on a DIN rail
Terminal block Looseness and
mounting screw rattling
Terminal block Attachment of dirt
condition and foreign
matters
2 Connection Clearance
status between
solderless
terminals
3 LED status at PW LED
power-on or
reset
RUN LED
MODE LED
D LINK LED
SAFETY LED
ERR. LED
I/O PW LED
Input status
indicator LED
Output status
indicator LED
Inspection method
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.
Check that the LED is on.
Check that the LED is on for a
moment.
Check that the LED is on for a
moment.
Check that the LED is on for a
moment.
Check that the LED is on for a
moment.
Check that the LED is on for a
moment.
*1
Check that the LED is on for a
moment.
Check that the LED is on for a
*2
moment.
Check that the LED is on for a
*2
moment.
Judgment criterion Corrective action
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.
On Refer to the following and take
corrective actions.
Page 123 Checking the LEDs
On Replace the module with a new one.
(When an LED fails)
On
On
On
On
The LED must be on when
the external power supply is
*3
applied .
On
On
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9.1 Daily Inspection
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