1 Troubleshooting
1.
Troubleshooting
If any trouble occurs, before checking the cause, make sure
to read and follow the contents of Table 1.1, "Precautions"
for safety,
Table 1.1 Precautions for safety
o
After turning off the power,
do not immediately touch
the controller.
After checking that the power indica-
tion lamp LED 10 (SF-CA card) puts off, conduct the main-
tenance and inspection work (waiting for 3 minutes or
more).
0
An electric shock may result in a death accident.
Regardless of whether the power supply is grounded or
not,
since each component of the equipment may be
exposed to a high voltage,
carefully select and use test
apparatus.
When installing any test apparatus on a portion to be
tested,
take care not to touch any portion being grounded.
Generally, when conducting a test,
do not ground the case
of any test apparatus.
Thus,
because a high voltage may
be applied between the test apparatus case and the
ground,
when operating the equipment while adjusting/
repairing it, take care of it.
o
While the power is supplied to the equipment or when the
equipment is operated,
do not attach/detach any printed
circuit board.
Otherwise,
the equipment may be damaged.
o
Do not put on a loose close which may be caught by the
rotating portion of the equipment.
Next,
thoroughly check the contents of Table 1.2, "Check
Items upon Occurrence of Trouble".
They will help you contact
with Service Department of Mitsubishi Electric.
1
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