MDS-C1-SPA Series INSTRUCTION MANUALib1500152(eng)a.pdf - 第191页
5. Troubleshooting 5 - 20 Alarm No. 8D Detection converter unit 2, CPU error With the servo, a CPU error was detected with the MDS-B-HR unit. With the spindle, a CPU error was detected with the MDS-B-PJEX unit. Investiga…

5. Troubleshooting
5 - 19
Alarm No.
76
External emergency stop setting error
The rotary switch setting for the external emergency stop does not match the parameter
setting.
Investigation details Investigation results Remedies
1 Check the rotary switch settings and
parameter settings.
When using external emergency stop:
• Add 0040h to the normal setting for SV036 or SP041, and set the power
supply's rotary switch to "4".
Alarm No.
77
Power module overheat
The power module's temperature protection function activated.
Investigation details Investigation results Remedies
Large amounts of cutting oil or cutting
chips, etc., are adhered, or the
rotation is slow.
Clean or replace the fan. 1 Confirm that the fan is rotating
correctly.
The fan is rotating properly. Investigate item 2.
Cutting oil or cutting chips, etc., are
adhered, and the fins are clogged.
Clean the fins. 2 Check whether the heat dissipating
fins are dirty.
The fins are normal. Investigate item 3.
55°C or more Improve the ventilation and cooling
for the power distribution panel.
3 Measure the drive unit's ambient
temperature.
Less than 55°C. Investigate item 4.
No abnormality is found in particular. If the alarm occurs even after the unit
temperature has dropped, replace
the unit.
4 Check if there is any abnormality in
the unit's ambient environment.
(Ex. Ambient temperature, noise,
grounding)
An abnormality was found in the
ambient environment.
Take remedies according to the
causes of the abnormality.
Ex. High temperature:
Check the cooling fan.
Incomplete grounding:
Additionally ground.
Alarm No.
7F
Power reboot request
A mismatch in the program mode selection was detected. Turn the drive unit power ON again.
Investigation details Investigation results Remedies
1 Were the parameter settings
changed?
SV009, SV010, SV011, SV012
SV033/bit8, 9
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.
Turn the drive unit's control power
ON again.
Alarm No.
88
Watch dog
The system is not operating normally.
Investigation details Investigation results Remedies
The version was changed. Replace with a drive unit containing
the original software version.
1 Check whether the servo software
version was changed recently.
The version was not changed. Investigate item 2.
The alarm is always repeated. Replace the drive unit. 2 Check the repeatability.
The state is returned to normal once,
but then the alarm occurs
occasionally.
Investigate item 3.
No abnormality is found in particular. Replace the drive unit. 3 Check if there is any abnormality in
the unit's ambient environment.
(Ex. Ambient temperature, noise,
grounding)
An abnormality was found in the
ambient environment.
Take remedies according to the
causes of the abnormality.
Ex. High temperature:
Check the cooling fan.
Incomplete grounding:
Additionally ground.

5. Troubleshooting
5 - 20
Alarm No.
8D
Detection converter unit 2, CPU error
With the servo, a CPU error was detected with the MDS-B-HR unit. With the spindle, a CPU
error was detected with the MDS-B-PJEX unit.
Investigation details Investigation results Remedies
No abnormality is found in particular. Replace the detection converter unit.1 Check if there is any abnormality in
the detector's ambient environment.
(Ex. Ambient temperature, noise,
grounding)
An abnormality was found in the
ambient environment.
Take remedies according to the
causes of the abnormality.
Ex. High temperature:
Check the cooling fan.
Incomplete grounding:
Additionally ground.
Alarm No.
8E
Detection converter unit 2, data error
A data error was detected with the MDS-B-HR unit.
Investigation details Investigation results Remedies
The cable is broken. Replace the cable. 1 Check whether the cable between
the linear scale and MDS-B-HR is
broken.
The cable is not broken. Investigate item 2.
No abnormality is found in particular. Investigate item 3. 2 Check if there is any abnormality in
the unit's ambient environment.
(Ex. Ambient temperature, noise,
grounding)
An abnormality was found in the
ambient environment.
Take remedies according to the
causes of the abnormality.
Ex. High temperature:
Check the cooling fan.
Incomplete grounding:
Additionally ground.
The state is improved. Replace the MDS-B-HR unit. 3 Try replacing the MDS-B-HR unit.
The state is not improved. Replace the linear scale.

5. Troubleshooting
5 - 21
5-3-3 Troubleshooting for each warning No.
Warning No.
A9
Orientation feedback error warning
Retrying during an orientation feedback error.
Investigation details Investigation results Remedies
1 Check the alarm No. "5C" items.
Warning No.
E1
Overload warning
The overload detection level is 80% or more.
Investigation details Investigation results Remedies
1 Check the alarm No. "50" items.
Warning No.
E4
Parameter error warning
A parameter exceeding the setting range was set.
Investigation details Investigation results Remedies
1 Check the error parameter No. SV001 to SV065
(M60S system: 2201 to 2265)
SP001 to SP384
(M60S system: 3201 to 3584)
Set the value within the designated
setting range.
Warning No.
E7
NC emergency stop
Emergency stop was input from the NC.
Investigation details Investigation results Remedies
Emergency stop was input. The NC is in the emergency stop
state. (Normal)
1 Check whether NC emergency stop
was input.
Emergency stop was not input. Investigate item 2.
An alarm is occurring in another drive
unit.
Reset the alarm in the other drive
unit.
2 Check whether an alarm is occurring
in another drive unit.
An alarm is not occurring. Investigate item 3.
The terminator or battery unit's cable
is disconnected.
Correctly connect. 3 Check the NC communication bus
line.
The NC communication bus
connector (CN1A, CN1B) is loose, or
the cable is broken.
Correctly connect the cable.
Warning No.
E9
Instantaneous power failure warning
An instantaneous power failure occurred.
Investigation details Investigation results Remedies
1 Check the alarm No. "71" items.
Warning No.
EA
External emergency stop
The external emergency stop signal was input.
Investigation details Investigation results Remedies
Use not allowed. Invalidate the external emergency
stop.
1 Check whether the specifications
allow use of the external emergency
stop.
Use is allowed. Investigate item 2.
24V is input. Replace the power supply unit. 2 Measure the input voltage of the
CN23 connector. (While emergency
stop is cancelled.)
24V is not input. Check whether the external
emergency stop cable is broken, or
check the external contact operation.
Warning No.
EB
Over-regeneration warning
The over-regeneration level is 80% or more.
Investigation details Investigation results Remedies
1 Check the alarm No. "73" items.