Chapter 11 Maintenance MASTER-K
11-2
11.2 Daily inspection
Perform daily inspections everyday as following table;
Check Items Check points Judgment
Corrective
Actions
Base unit
mounting
conditions
Check for loose mounting screws
The base unit should be
securely mounted
Retighten
Screws
Mounting
conditions of
I/O modules
• Check if the hook is securely engaged
• Check if the upper cover is securely
mounted
The hook should be
securely engaged
Securely
engage the
hook
Check for loose terminal screws
Screws should not be
loose
Retighten
terminal
screws
Check the distance between solderless
terminals
Proper clearance should
be provided
Correct
Connecting
conditions of
terminal block
or extension
cable
Check connectors of extension cable
Connectors should not be
loos e
Correct
Power
LED
Check that the LED is ON
ON(OFF indicates an
error)
Run
LED
Check that the LED is ON during Run
ON(ON or flickering
indicates an error)
Stop
LED
Check that the LED is OFF during Run
OFF(ON indicates an
error)
Input
LED
Check that the LED turns ON and OFF
ON when input is ON,
OFF when input is off
Indicating LED
Output
LED
Check that the LED turns ON and OFF
ON when output is ON.
OFF when output is OFF
Refer
chapter 12