Mitsubishi Electric M700VS Series Setup Manual page 627

MITSUBISHI CNC
Appendix 2 Explanation of Alarms
Detector communication error in synchronous control:
Alarm No.
An error was detected in the machine side detector of the secondary axis at the speed command
19
synchronization control.
Investigation details
Check the servo parameter value of
1 secondary axis (SV025.pen:position
detector).
Check if there are no problems in the
2 connection between the detector
(linear scale) and MDS-B-HR.
Jiggle the detector connectors (drive
3 unit side and detector side) and check
if they are disconnected.
Turn the power OFF, and check the
4 detector cable connection with a
tester.
Replace with another unit, and check
5 whether the fault is on the unit side or
detector side.
Check if there is any abnormality in the
detector's ambient environment.
6
(Ex. Ambient temperature, noise,
grounding)
Sub side detector: Initial communication error
Alarm No.
1A
Initial communication with the machine side detector failed.
Investigation details
Check the servo parameter
(SV025.pen:position detector) setting
value.
Check the spindle parameter(SP019)
1
setting value.
Are the serial communication type
detector parameters set for the pulse
type detector?
Check the detector.
2 Check if the pulse detector is used for
the detector specified to be serial.
Jiggle the detector connectors (drive
3 unit side and detector side) and check
if they are disconnected.
Turn the power OFF, and check the
4 detector cable connection with a
tester.
Replace with another unit, and check
5 whether the fault is on the unit side or
detector side.
Check if there is any abnormality in the
detector's ambient environment.
6
(Ex. Ambient temperature, noise,
grounding)
610
Investigation results
The value is not set correctly.
The value is set correctly.
The screw connected to MDS-B-HR is
winded down.
No problems found in the connector
connection.
The connector is disconnected (or
loose).
The connector is not disconnected.
The connection is faulty.
The connection is normal.
The alarm is on the drive unit side.
The alarm is on the detector side.
Take remedies according to the causes of the abnormality in the ambient
environment.
[1] Machine grounding check
[2] Shield connection of the cable
Investigation results
The value is not set correctly.
The value is set correctly.
The pulse detector is used.
The serial detector is used.
The connector is disconnected (or
loose).
The connector is not disconnected.
The connection is faulty.
The connection is normal.
The alarm is on the drive unit side.
The alarm is on the detector side.
Take remedies according to the causes of the abnormality in the ambient
environment.
Remedies
Correctly set.
Check the investigation item No. 2.
Tighten up the screw.
Check the investigation item No. 3.
Correctly install.
Check the investigation item No. 3.
Replace the detector cable.
Check the investigation item No. 4.
Replace the drive unit.
Check the investigation item No. 5.
Remedies
Correctly set SV025.
Check the investigation item No. 2.
Replace the detector.
Check the investigation item No. 3.
Correctly install.
Check the investigation item No. 4.
Replace the detector cable.
Check the investigation item No. 5.
Replace the drive unit.
Check the investigation item No. 6.
SV SP
SV SP