Mitsubishi MELDAS MDS-C1 Instruction Manual page 278

Main circuit error
Alarm No.
An abnormality was detected in the main circuit capacitor's charging operation.
6C
Investigation details
1 Check the CHARGE lamp state when
the alarm occurs.
2 Disconnect the power supply unit's
PN terminal block wiring, and
measure the resistance value at 1)
and 2) shown below.
Power supply
Drive unit
P
N
Parameter error
Alarm No.
The power supply unit's capacity is not appropriate for the regenerative resistor type set with the
6D
parameters.
Investigation details
1 Check the parameters (regenerative
resistor type) of the drive unit to
which the power supply unit's control
wire (CN4) is connected.
Servo: SV036, Spindle: SP041
Memory error
Alarm No.
An error was detected in the internal memory.
6E
Investigation details
1 Check the repeatability.
2 Check if there is any abnormality in
the unit's ambient environment.
(Ex. Noise, grounding)
6. Troubleshooting
Investigation results
The CHARGE lamp remains ON for
some time.
The lamp turns ON instantly, but
when the alarm occurs and the
contactor turns OFF, the lamp turns
OFF immediately.
The lamp never turns ON.
1) The power supply unit side is
abnormal.
2) The drive unit side is abnormal.
1) and 2) are both normal.
unit
Tester
Polarity
measure-
2)
ment point +
P
1)
1)
N
P
2)
N
Investigation results
SV036 and SP041 setting
F E D
amp
rtyp Regenerative resistor type
0 For MDS-C1-CV
1 GZG200W260HMJ
2 GZG300W130HMJ×2
3 MR-RB30
4 MR-RB50
5 GZG200W200HMJ×3
6 GZG300W200HMJ×3
7 R-UNIT-1
8 R-UNIT-2
9 R-UNIT-3
A~F No setting
ptyp setting
Investigation results
The alarm occurs each time READY
is turned ON.
The alarm occurs occasionally.
No abnormality is found in particular.
The grounding is incomplete.
An alarm will occur easily if another
device operates.
Replace the power supply unit.
Investigate item 2.
Investigate item 2.
Then replace the unit.
Replace the power supply unit.
Disconnect the PN wiring, and then
check the drive unit side.
Replace the power supply unit.
Normal Abnormal
-
N Several 100Ω Short-circuit/∞Ω
∞Ω
P
Several 100Ω
N Several 100Ω Short-circuit/∞Ω
∞Ω
P
Several 100Ω
C B A 9 8 7 6
rtyp
CR-10 CR-15 CR-22
× × ×
× × ×
× × ×
× × ×
× × ×
× × ×
× × ×
× × ×
81 82 83
Replace the unit.
Investigate item 2.
Replace the unit.
Take remedies according to the
causes of the abnormality.
Ex. Incomplete grounding:
Noise: Noise measures for
6 - 33
Remedies
Remedies
5 4 3 2 1 0
ptyp
CR-37 CR-55 CR-75 CR-90
× × × ×
× ×
× ×
× × × ×
84 86 88 89
Remedies
Additionally ground.
other devices.
CV CR
CV CR
CV CR