Chapter 6 Maintenance And Inspection; Daily Inspection - Mitsubishi Electric MELSEC iQ-R Series Configuration Manual

6
MAINTENANCE AND INSPECTION
This chapter describes items that must be maintained or inspected daily or periodically to properly use a programmable
controller in optimal condition at all times.
When using the C Controller module, refer to the following.
 MELSEC iQ-R C Controller Module User's Manual (Startup)
6.1

Daily Inspection

This section describes items that must be inspected daily.
Item Inspection Item
1 Mounting of the Loose
base unit
2 Mounting of the Loose
module
3 Connection status Terminal screw
loosening
Clearance between the
solderless terminals
Connector loosening
4 LED status POWER LED (power
supply module)
READY LED and RUN
LED
ERROR LED, ERR LED,
P ERR LED, and L ERR
LED
BATTERY LED (CPU
module)
USER LED (CPU
module)
I/O indicator LED (I/O
module)
Inspection method Judgment criteria
Check that mounting screws The screws and cover must be
are not loose and the cover is fixed.
not dislocated.
Check that the module is The module must be mounted
mounted and the module fixing and the module fixing hook
hook is fixed securely. must be fixed.
Check for the terminal screw The terminal screws must not
loosening. be loose.
Check for the clearance The proper clearance must be
between the solderless provided between solderless
terminals. terminals.
Check for the cable connector The cable connector must not
loosening. be loose.
Check that the LED is on. The LED must be on.
Check that the LED is on. The LED must be on.
Check that the LED is off. The LED must be off.
Check that the LED is off. The LED must be off.
Check that the LED is off. The LED must be off.
Check that the LED is on or off. The LED turns on when I/O
signals are on. The LED turns
off when I/O signals are off.
Corrective action
Retighten the screws.
Fix the module fixing hook
securely.
Retighten the terminal screws.
Provide the proper clearance.
Connect the connector with no
loosening securely.
When the judgment criteria is
not satisfied, refer to the
following and take the
corrective action.
 User's Manual
(Application) for the module
used
6 MAINTENANCE AND INSPECTION
6.1 Daily Inspection
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