MDS-C1-SPA Series INSTRUCTION MANUALib1500152(eng)a.pdf - 第180页
5. Troubleshooting 5 - 9 Alarm No. 20 Motor side detector , No signal 1 A PLG Z-phase no signal was detected. An error was detected in the A/B phase output waveform during PLG automatic adjustment. Investigation details …
5. Troubleshooting
5 - 8
5-3-2 Troubleshooting for each alarm No.
Alarm No.
12
Memory error 1
A CPU or internal memory error was detected during the self-check at power ON.
Investigation details Investigation results Remedies
1 Refer to "5-3-1 Troubleshooting at power ON".
Alarm No.
13
Software processing error 1
The software process was not completed within the specified time. (CPU1)
Investigation details Investigation results Remedies
The version was changed. Try replacing with the drive unit
containing the original software
version.
1 Check whether the software version
was changed recently.
The version was not changed. Investigate item 2.
The error is always repeated. Replace the drive unit. 2 Check the repeatability.
The state returns to normal once, but
occurs sometimes thereafter.
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.
Alarm No.
17
A/D converter error
An error was detected in the A/D converter for current FB detection.
Investigation details Investigation results Remedies
1 The error is always repeated. Replace the drive unit.
Check the repeatability.
The state returns to normal once, but
occurs sometimes thereafter.
Investigate item 2.
2 No abnormality is found in particular. Replace the drive unit.
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 - 9
Alarm No.
20
Motor side detector, No signal 1
A PLG Z-phase no signal was detected.
An error was detected in the A/B phase output waveform during PLG automatic adjustment.
Investigation details Investigation results Remedies
The connector is disconnected (or
loose).
Correctly install. 1 Check whether the drive unit
connectors (CN5) or detector
connectors are disconnected.
The connector is not disconnected. Investigate item 2.
There is a connection fault. Replace the detector cable. 2 Turn the power OFF, and check the
detector cable connection with a
tester.
The connection is normal. Investigate item 3.
The alarm occurred during PLG
automatic adjustment.
Investigate item 4. 3 Check whether the alarm occurred
during PLG automatic adjustment.
The alarm occurred during normal
operation.
Investigate item 5.
There is a problem. (The A/B phase
input voltage is 0.8V or less or 2.2V
or higher.)
Adjust the PLG output waveform. 4 Check the PLG output waveform (A/B
phase).
Normal Investigate item 6.
There is a problem. (The output
waveform is 0V even after the gears'
Z-phase is passed.)
Investigate item 7. 5 Check the PLG output waveform
(Z-phase).
Normal Investigate item 6.
Occurs each time. Replace the drive unit. 6 Check the occurrence frequency.
Occurs occasionally. Check whether the cable is
disconnected, whether there is a
contact fault, or a detector fault.
No abnormality is found in particular. Replace the PLG detector. 7 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 measures according to the error
cause.
Cable disconnection, contact fault.
The sensor is hot during high-load
operation.
Review the operation, and adjust
the Z-phase again.
Alarm No.
21
Machine side detector, No signal 2
The no-signal of 1024p/rev encoder for orientation was detected.
Investigation details Investigation results Remedies
Encoder orientation is not used. Set SP037/bit0 to 0. 1 Check the spindle parameter
(SP037/bit0) setting.
Encoder orientation is used. Investigate item 3.
The gear rate does not match an
actual machine.
Correctly set the value of SP025 to
SP031.
2 Check the spindle parameter SP025
to SP031 settings.
A gear selection of sequence differs
from an actual gear.
Correctly select the gear.
The connector is disconnected (or
loose).
Correctly install. 3 Check whether the drive unit
connectors (servo: CN6, spindle:
CN6) or detector connectors are
disconnected.
The connector is not disconnected. Investigate item 4.
There is a connection fault. Replace the detector cable. 4 Turn the power OFF, and check the
detector cable connection with a
tester.
The connection is normal. Investigate item 5.
The alarm is on the drive unit side. Replace the drive unit. 5 Connect to another normal spindle
drive unit, and check whether the
fault is on the drive unit side or
detector side.
The alarm is on the detector side. Investigate item 6.
No abnormality is found in particular. Replace the detector.
(With the absolute position system,
the zero point must be established.)
6 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.
5. Troubleshooting
5 - 10
Alarm No.
23
Excessive speed deflection 1
A difference of 50r/min or more between the speed command and speed feedback continued
for longer than the set time. (Time is a value set to SP055.)
Investigation details Investigation results Remedies
The wires are not correctly
connected.
Correctly connect. 1 Check the U, V and W wiring
between the spindle drive unit and
spindle motor.
The wires are correctly connected. Investigate item 2.
The correct values are not set. Correctly set. 2 Check the settings for SP034,
SP040, SP055, and SP257 to
SP384.
The correct values are set. Investigate item 3.
12 seconds or more. Increase the SP055 setting value. 3 Measure the acceleration/
deceleration time constants.
Measure the time required to reach
the reverse run maximum speed from
the forward run maximum speed.
Less than 12 seconds. Investigate item 4.
120% or more. Reduce the load. 4 Measure the load during cutting.
Less than 120%. Investigate item 5.
There is a problem. Adjust the PLG output waveform. 5 Check the PLG output waveform.
Normal. Replace the drive unit.
Alarm No.
31
Overspeed
A rotation speed exceeding the motor's tolerable rotation speed was detected.
Investigation details Investigation results Remedies
Setting value is too small. Correctly set. 1 Confirm the spindle parameter
SP017 (TSP) setting.
Correctly set. Investigate item 4.
There is a problem. Adjust the PLG output waveform. 2 Confirm the PLG output waveform.
Normal. Investigate item 5.
The waveform is overshooting. Increase the acceleration/
deceleration time constant.
3 Check whether the speed waveform
is overshooting.
The waveform is not overshooting. Check if there is any abnormality in
the unit's ambient environment.
(Ex.: Ambient temperature, noise,
grounding)
Alarm No.
32
Power module overcurrent
The power module's overcurrent protection function activated.
Investigation details Investigation results Remedies
The alarm occurs before READY ON.
(The drive unit is faulty.)
Check investigation item 2 and
following, and remove the cause of
the fault. Then replace the drive unit.
1 Check the repeatability.
The alarm occurs after READY ON. Investigate item 2.
The setting is incorrect.
SP034,SP040,SP257 to SP384
Correctly set. 2 Check the parameter setting.
• Motor type
The setting is correct. Investigate item 3.
The setting is large compared to the
standard value.
Set the standard value. 3 Check the parameter settings.
• Current loop gain
• Speed loop gain
The standard value is set. Investigate item 4.
The power cable is short-circuited. Replace the motor's power cable. 4 Disconnect the UVW phase wiring
from the terminal block, and the UVW
phase of the motor from the motor.
Check the insulation with a tester.
There is no problem. Investigate item 5.
The power cable is short-circuited. Replace the motor's power cable. 5 Check the insulation between the
motor power cable and FG.
There is no problem. Investigate item 6.
The motor is short-circuited. Replace the motor. 6 Connect the UVW phase of the
motor, and check the insulation
between the power cable and FG.
There is no problem. Investigate item 7.
No abnormality is found in particular. Replace the drive unit. 7 Check for any abnormalities in the
motor's ambient environment.
(Ex.: Ambient temperature, cutting
water)
An abnormality was found in the
ambient environment.
Replace the motor and improve the
motor installation environment.