Mitsubishi Electric MELDAS C6 Instruction Manual page 454

Alarm No.
59
5A
5C
5D
5E
5F
61
62
63
65
67
68
69
6A
6B
6C
6D
6E
6F
71
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7.3 Servo ⋅ Spindle Alarms
Name
Collision detection 1:
G1
Collision detection 2 When collision detection function was valid, the command torque
Orientation feedback
error
Speed monitoring:
Input mismatch
Speed monitoring:
Feedback speed
error
External contactor
error
Power module
overcurrent
Frequency error
Supplementary
regeneration error
Rush relay error
Phase interruption
Watchdog
Grounding
External contactor
welding
Rush relay welding
Main circuit error
Parameter error
Memory error
Power supply error
Instantaneous
power interruption
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7. List of Alarms
When collision detection function was valid, the disturbance torque
in cutting feed (G1) exceeded the collision detection level.
reached the max. motor torque.
After orientation was achieved, a difference between the command
and feedback exceeded the parameter setting.
As for door state signal of speed monitoring control, a mismatch
between the external input signal and the control signal received
from the CNC was detected.
In speed monitoring control, the spindle speed was exceeding the
setting speed with the door open.
A contact of the external contactor is welding. Or the contactor fails
to be ON during ready ON.
Overcurrent protection function in the power module has started its
operation.
The input power supply frequency increased above the specification
range.
The supplementary regenerative transistor is being ON.
A resistor relay for rush short circuit fails to be ON.
An open-phase condition was detected in input power supply circuit.
The system does not operate correctly.
The motor power cable is in contact with FG (Frame Ground).
A contact of the external contactor is welding.
A resistor relay for rush short circuit fails to be OFF.
An error was detected in charging operation of the main circuit
capacitor.
The capacity of the power supply unit and the regenerative resistor
type that was set in the parameter are mismatched.
An internal memory error was detected.
A power supply unit is not connected. Or an error was detected in
A/D converter of the power supply unit.
The power was momentarily interrupted.
IV - 38
Meaning