Mitsubishi MELDAS MDS-C1 Instruction Manual page 273

Collision detection 1 G0
Alarm No.
When the collision detection function is valid, the disturbance torque exceeded the collision detection
58
value during rapid traverse (G0).
Investigation details
1 Check whether the machine has
collided.
Collision detection 1 G1
Alarm No.
When the collision detection function is valid, the disturbance torque exceeded the collision detection
59
level during cutting feed (G1).
Investigation details
1 Check whether the machine has
collided.
Collision detection 2
Alarm No.
When the collision detection function is valid, the command torque reached the motor's maximum
5A
torque.
Investigation details
1 Check whether the machine has
collided.
2 Check whether the current value on
the NC Servo Monitor screen is
saturated during
acceleration/deceleration.
3 Can the acceleration/deceleration
time constant be changed?
Orientation feedback error
Alarm No.
After orientation was completed, the command and feedback error exceeded the parameter setting.
5C
Investigation details
1 Check the PLG cable shield.
2 Check the PLG cable connection.
3 Check the PLG output waveform.
6. Troubleshooting
Investigation results
The machine has collided.
The machine has not collided.
Investigation results
The machine has collided.
The machine has not collided.
Investigation results
The machine has collided.
The machine has not collided.
The current is saturated during
acceleration/deceleration.
The current value during
acceleration/deceleration is
appropriate.
The constant can be changed.
The constant cannot be changed.
Investigation results
The cable is not correctly shielded.
The cable is correctly shielded.
The cable is incorrectly connected or
broken.
Normal
There is a problem.
Normal
6 - 28
Remedies
Check the machining program and
soft limit settings.
Increase the detection level (SV060).
(The detection level should have an
allowance and be set as approx.
1.5-times the maximum disturbance
torque.)
Remedies
Check the machining program and
soft limit settings.
Increase the detection level (SV035.
clG1).
(Set the detection level larger than
the maximum cutting load.)
Remedies
Check the machining program and
soft limit settings.
Investigate item 2.
Investigate item 3.
Investigate the cause of the load
fluctuation.
Increase the acceleration/
deceleration time constant.
Set to ignore collision detection
method 2.
Remedies
Shield the cable.
Investigate item 2.
Replace the cable.
Investigate item 3.
Adjust the PLG output waveform.
Replace the drive unit
SV SP
SV SP
SV SP
SV SP