Mitsubishi Q170MCPU User Manual page 151

6 INSPECTION AND MAINTENANCE
(a) Flowchart for when "POWER" LED turns off
The following shows the flowchart for when "POWER" LED turns off at the
power supply ON or during operation.
"POWER" LED turns off
Is there a power supply?
YES
Is the wiring/
terminal connection
correct?
YES
Is the power
supply voltage within the
rated range?
YES
1)
NO
Supply power.
NO
Does "POWER"
LED turn on?
NO
Connect wiring and fix terminal
connection correctly.
NO
Does "POWER"
LED turn on?
NO
The supply voltage should be within
the rated range.
NO
Does "POWER"
LED turn on?
6 - 16
YES
YES
YES
END