Mitsubishi FREQROL-SFJ - Error Excess Position

c
c
Cause
Checkup
'stopped
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._--_._-_--_ - _ _
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Remedy
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.- - --_
tional rernedy~./
2. Replace the :
motor.
Fuse biown out
Trouble with dis-
charge resistor unit
cooling fan
Trouble with dis-
charge resistor unit
thermosensor
(thermoswitch)
Check 'if the fan remains Replace the fuse.
stopped due to blown out
fuse.
If new fuse is blown out
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again,
grounding fault, etc.).
1.
Check wiring of motor Remedy the wiring./
cooling fan and discharge
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resistor unit cooling
fan (short-circuit,
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- --.-
Check if resistor unit cool-iReplace the cool-
ing fan is in standstill or ing fan.
does not run satisfactorily.i
~ -.._.--.._.
Check if thermosensor does
Replace the dis-
not reset when the cooling charge resistor
fan is operated for 15 - unit.
16 min. with the motor
stopped.
(15) ERROR EXCESS POSITION
This alarm appears if deviation of true stop position
from commanded stop position is excessive in oriented
spindle stop operation or position control loop opera-
tion.
.
I--’ .-
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-.- -.- - . _. _ _..__
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Cause
I
Checkup
Remedy
!
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_ _.
1
Check if alarm is removed
Set parameter I
Parameter (orien-
tation of encoder)
setting improper
type oriented spindle stop
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operation.
-.- _ _--.._______
.__ .___
when bit 8 of par,ameter
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ORS2,is inversed in encoder
0RS2 properiy. /
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