Mitsubishi A1SJH User Manual

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

Mitsubishi A1SJH Specifications

General

Brand	Mitsubishi
Model	A1SJH
Category	Controller
Language	English