Mitsubishi MELDAS MDS-C1 Instruction Manual page 282

Power reboot request
Alarm No.
A mismatch in the program mode selection was detected. Turn the drive unit power ON again.
7F
Investigation details
1 Were the parameter settings
changed?
SV009, SV010, SV011, SV012
SV033, bit8, 9
Watch dog
Alarm No.
The system is not operating normally.
88
Investigation details
1 Check whether the servo software
version was changed recently.
2 Check the repeatability.
3 Check if there is any abnormality in
the unit's ambient environment.
(Ex. Ambient temperature, noise,
grounding)
Encoder converter unit 2, connection error
Alarm No.
With the servo, an error was detected in the connection with the analog output linear scale for the
89
MDS-B-HR unit. With the spindle, initial communication with the MDS-B-PJEX was not possible.
Investigation details
1 Wiggle the MDS-B-HR/MDS-B-PJEX
unit connector (CON3) by hand to
check whether it is disconnected.
2 Check whether the cable between
the linear scale and MDS-B-HR is
broken.
3 Check if there is any abnormality in
the unit's ambient environment.
(Ex. Ambient temperature, noise,
grounding)
4 Check whether the cable between
the spindle drive unit and
MDS-B-PJEX is broken.
5 Check if there is any abnormality in
the unit's ambient environment.
(Ex. Ambient temperature, noise,
grounding)
Detection converter unit 2, communication error
Alarm No.
With the servo, an error was detected in the communication with the serial output linear scale for the
8A
MDS-B-HR unit. With the spindle, an error was detected in the communication with the MDS-B-PJEX.
Investigation details
1 Check the alarm No. "89" items.
6. Troubleshooting
Investigation results
This alarm is detected if the high-gain
specification parameters are set
when the drive unit is started up with
the standard specification software
mode, or if the standard specification
parameters are set when started up
with the high-gain specifications.
Investigation results
The version was changed.
The version was not changed.
The alarm is always repeated.
The state is returned to normal once,
but then the alarm occurs
occasionally.
No abnormality is found in particular.
An abnormality was found in the
ambient environment.
Investigation results
The connector is disconnected (or
loose).
The connector is not disconnected.
The cable is broken.
The cable is not broken.
No abnormality is found in particular.
An abnormality was found in the
ambient environment.
The cable is broken.
The cable is not broken.
No abnormality is found in particular.
An abnormality was found in the
ambient environment.
Investigation results
6 - 37
Remedies
Turn the drive unit's control power
ON again.
Remedies
Replace with a drive unit containing
the original software version.
Investigate item 2.
Replace the drive unit.
Investigate item 3.
Replace the drive unit.
Take remedies according to the
causes of the abnormality.
Ex. High temperature:
Check the cooling fan.
Incomplete grounding:
Additionally ground.
Remedies
Correctly install.
Servo : Investigate item 2.
Spindle : Investigate item 4.
Replace the cable.
Investigate item 3.
Replace the MDS-B-HR unit.
Take remedies according to the
causes of the abnormality.
Ex. High temperature:
Check the cooling fan.
Incomplete grounding:
Additionally ground.
Replace the cable.
Investigate item 5.
Replace the drive unit.
Take remedies according to the
causes of the abnormality.
Ex. High temperature:
Check the cooling fan.
Incomplete grounding:
Additionally ground.
Remedies
SV SP
SV SP
SV SP
SV SP