4742-E P-22
SECTION 1 INVERTER UNIT (MIV UNIT)
04
Motor power
line over cur-
rent
The inverter unit detected over current through the motor
power line.
XXXXYYYY
[In case of BL/PREX]
XXXX = Detected U-phase current value
(Displayed in hexadecimal: 3FFF[Hex]
= Max. momentary current)
YYYY = Detected V-phase current value
(Displayed in hexadecimal: 3FFF[Hex]
= Max. momentary current)
[In case of VAC]
XXXX = U-phase detected current (AAA [Hex]
= Max. momentary current)
YYYY = V-phase detected current (AAA [Hex]
= Max. momentary current)
Change the motor.
Change the MIV unit.
05
Inverter
overheat
Inverter unit temperature raised excessively.
XXXXXXXX = 1 (fixed)
Check the operation
conditions.
Change the MIV unit.
06
Inverter
overload
(electronic
thermal relay)
The overload protection function was activated since the
inverter load exceeded the specified value.
XXXXYYYY
XXXX =
ϒ
of the protection curve at the detection of overload
YYYY = Cumulative data at the detection of overload
Check the operation
conditions.
Reduce the cutting
load torque.
Check the servo
data file.
Change the MIV unit.
07
Commercial
power source
error
Input voltage to the power supply unit raised or lowered exces-
sively.
XXXXXXXX = Voltage value at the detection of error.
(Displayed in hexadecimal: 01[Hex] = 0 volt)
(Displayed in hexadecimal: 80[Hex] = 300 volts)
Check the source
voltage.
Change the diameter
and length of the
power cable.
Change the MPS/
MPR unit.
08
Not used
(Inverter
version error)
09
Motor winding
changeover
error
An error occurred at the changeover of winding.
XXXXXXXX
00000001[Hex]: Detection of ON at the LOW side MC
00000002[Hex]: Detection of ON at the HIGH side MC
00000003[Hex]: Detection of ON of both LOW side and
HIGH side MC
00000004[Hex]: Winding changeover time out
10100001[Hex]: Servo data file error
Change the winding
changeover magnet
switch.
No.
Name
Description/Alarm Code
Corrective Action
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