Mitsubishi FREQROL-SF - 1. Troubleshooting; 1.1 Status display and diagnosis; 1.2 Checking method and countermeasures of trouble classification A; 1.3 Checking method and remedy of trouble classification B

1. Troubleshooting
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1.1
Status display and diagnosis . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.1
Status display and diagnosis from spindle amplifier.
1.1.2
Status display and diagnosis from NC . . . . . . . . . . . . . . .
1.2 Checking method and countermeasures of trouble
classification A .._..................................
1.2.1 When the amplifier is turned on at the first time,
it does not correctly work
. . . . . . . . . . . . . . . . . . . . . . . .
1.2.2 The motor which has normally rotated stops
abruptly
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.3 The equipment does not work in occasions.
The
orientation stop position deviates.
Although an
alarm appears,
after turning on and off the power
or resetting the equipment, the equipment normally
works
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3
Checking method and remedy of trouble classification
B
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
1.3.6
1.3.7
1.3.8
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When the power is turned on, the display of the
operation panel does not appear at all . . . . . . . . . . . . .
When the power is turned on, the display on the
operation panel does not indicated the speed in
the status display mode (as shown in the following
figure)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
An alarm appears ont he display on the printed
circuit board (SF-CA card) of the amplifier . . . . . . . .
The motor does not rotate . . . . . . . . . . . . . . . . . . . . . . . . . .
The motor does not rotate at a speed being
specified
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .
The motor vibrates and is getting noisier during
rotations . . . . .._...._._........_...................
The motor overshoots in speed or hours . . . . . . . . . . . . .
The cutting force degrades . . . . . . . . . . . . . . . . . . . . . . . . .
1
5
5
10
13
13
15
16
17
17
18
20
41
43
44
46
47