Mitsubishi Electric MELDAS MDS-B-SVJ2 Series, Технические характеристики и инструкция по эксплуатации

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Chapter 8 Troubleshooting
8-9
No. Name Details Cause of occurrence Investigation method Remedy
Check the program. The machine collided. Check the machine and workpiece state.
Check the
overtravel setting.
The machine was stopped for a long time. Check the
repeatability.
The machine friction
increased.
This can occur easily in the morning during
the winter.
58 Collision
detection 1: G0
During rapid
traverse (G0), the
disturbance torque
exceeded the
collision detection
level.
The detection level is
too low. Set the detection level to approx. 1.5 times
the maximum disturbance torque, and
provide an allowance.
Readjust the
detection level.
The machine collided. Check the machine and workpiece state. Same as ALM58. 59 Collision
detection 1: G1
During cutting
traverse (G1), the
disturbance torque
exceeded the
collision detection
level.
The detection level is
too low. Check the maximum cutting load. Set to above the
maximum cutting
load.
The machine collided. Check the machine and workpiece state. Same as ALM58.
The machine was stopped for a long time. Check the
repeatability.
The machine friction
increased.
This can occur easily in the morning during
the winter.
Check the current during acceleration.
Increase the
acceleration/decele-
ration time constant.
5A Collision
detection 2
The command
torque reached the
motor's maximum
torque.
The acceleration/
deceleration time
constant is too small.
The time constant cannot be increased. Set to ignore
collision detection
method 2.
Contactor fusing Check the contactor conductivity. Replace the
contactor.
Contactor control was
set for a system that
has no contactor. SV017 (SPEC) bit 3 should be set to 1.
(The setting is made only for the axis that
is actually controlling the contactor.)
Set the parameter.
The contactor drive
relay operation is
defective. Check the relay and control cable (CN3). Repair the defective
section.
5F External
contactor
welding
The contact of the
external contactor
fused.
(Detected only
when ready is
turned ON.)
[Detected even
when the control
axis is removed.]
Broken wire in the
regenerative resistor.
•
Is the short bar between the P and D
terminals loose?
•
Is the cable loose when using the option
resistor?
Repair the
regenerative
resistor circuit.
Amplifier fault Check the repeatability. Replace the
amplifier. 88 Watchdog The amplifier
system did not
operate correctly.
[Detected even
when the control
axis is removed.]
The grounding is
incomplete. Check the grounding state. Ground correctly.
CAUTION
Alarms without particular descriptions are not detected during control axis
removal command input.