Mitsubishi FREQROL-SF, Руководство по устранению неисправностей

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1 Troubleshooting
Table 1.3
Checking power voltage
Checking Amplifier input pins
AC power voltage
Xl, X2, X3, and E
See Appendix l-l
Checking DC power
supply voltage on
Checking DC output
voltage at check
See Appendixes 5,
printed circuit
pins on SF-PW card
and
board
Table 1.4
Trouble classification
cation
Situation
1
When the amplifier is powered on at the first
time, it does not normally work.
1.2.1
2
The equipment which has normally worked does
not abruptly work.
1.2.2
The equipment does not work in occasions.
The orientation stop position deviates from
3
the specific position. Although an alarm
1.2.3
lights,
it is recovered by turning off and
then on the equipment or by resetting it.
When the power is turned on, the display of
1
the operation panel does not appear at all.
Alternatevely,
the DC voltage of the printed
circuit board is not correct.
When the power is turned on, the display on
the operation panel does not indicate
2 tions in the status display mode (as shown in
1.3.2
B
the following figure).
The display on the amplifier printed circuit
board (SF-CA card) indicates an alarm (as
3
shown in the following figure).
1.3.3
Continued on the next page.