Daily Inspection - Mitsubishi A1SJH User Manual

10. MAINTENANCE AND INSPECTION
10.1

Daily Inspection

Table 10.1 shows the inspection and items which are to be checked daily.
No. Check item
Base unit Check for loose
1 mounting mounting screws
conditions and cover
Check if the
Mounting
module is
conditions of
2 disengaged and if
I/O module,
the hook is
etc.
securely engaged.
Check for loose
terminal screws.
Check distance
Connecting between
3
conditions Solderless
terminals.
Check connectors
of extension cable.
"POWER" Check that the
LED LED is ON.
Check that the
"RUN"
LED is ON during
LED
RUN.
Check that the
"ERROR"
LED is ON when
LED
an error occurred.
4
Check that the
Input
LED turns ON and
LED
OFF.
Check that the
Output
LED turns ON and
LED
OFF.
Table 10.1 Daily inspection
Check point
The base unit should be
securely mounted.
The hook should be
securely engaged and
the module should be
positively mounted.
Screws should not be
loose.
The proper clearance
should be provided
between Solderless
terminals
Connections should no
be loose.
ON
(OFF indicates an error.)
ON
(OFF or flashing
indicates an error.)
OFF
(ON when an error
occurred.)
ON when input is ON.
OFF when input is OFF.
(Display, other than
above, indicates an
error.)
On when output is ON.
OFF when output is OFF.
(Display, other than
above, indicates an
error.)
10 - 2
MELSEC-A
Judgement Corrective action
Retighten screws.
Securely engage
the hook.
Retighten
terminal screws
Correct.
Retighten
connector
mounting screws.
See Section
11.2.2
See Sections
11.2.3 and 11.2.4
See Sections
11.2.5 and 11.2.6
See Sections
11.2.7
See Sections
11.2.7