Mitsubishi Electric MELDAS C6 Instruction Manual page 451

Alarm No.
1A
1B
1C
1D
1E
1F
20
21
22
23
24
25
26
27
28
29
2A
2B
2C
2D
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7.3 Servo ⋅ Spindle Alarms
Name
Machine side
detector: Initial
communication error
Machine side
detector:
CPU error 1
Machine side
detector:
EEPROM/LED error
Machine side
detector: Data error
Machine side
detector: Memory
error
Machine side
detector:
Communication
error
Motor side detector:
No signal
Machine side
detector: No signal
LSI error
Excessive speed
error 1
Grounding
Absolute position
data lost
Unused axis error
Machine side
detector:
CPU error 2
Machine side
detector: Overspeed
Machine side
detector: Absolute
position data error
Machine side
detector: Relative
position data error
Motor side detector:
CPU error 1
Motor side detector:
EEPROM/LED error
Motor side detector:
Data error
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7. List of Alarms
Initial communication with the linear scale or the ball screw end
detector failed.
CPU initial error was detected in the linear scale or in the ball screw
end detector.
An error was detected in the stored data of the linear scale memory.
Or the LED deterioration was detected in the ball screw end
detector.
An error data was detected in the linear scale or in the ball screw end
detector.
An internal memory error was detected in the linear scale.
An error was detected in communication data with the linear scale or
the ball screw end detector. Or the communication was interrupted.
No signals were detected in A,B,Z-phase or U,V,W-phase of the
pulse motor end detector in a servo system, or in Z-phase of PLG in
a spindle system.
No signals were detected in A,B,Z-phase of the pulse linear scale or
the ball screw end detector in a servo system. Or no encoder signals
were detected in a spindle system.
LSI operation error was detected in the drive unit.
A difference between the speed command and speed feedback was
continuously exceeding 50 r/min for longer than the setting time.
The motor power cable is in contact with FG (Frame Ground).
The absolute position was lost, as the backup battery voltage
dropped in the absolute position detector.
A power module error occurred in the axis whose axis No. selection
switch was set to "F"(free axis).
A CPU error was detected in the linear scale.
The specified max. speed was detected in the linear scale.
An error was detected in the absolute position detection circuit of the
linear scale.
An error was detected in the relative position detection circuit of the
linear scale.
A CPU initial error was detected in the motor end detector or in the
linear scale of a linear servo system.
The LED deterioration was detected in the motor end detector. Or
an error was detected in the stored data of the linear scale memory
of a linear servo system.
A data error was detected in the motor end detector or in the linear
scale of a linear servo system.
IV - 35
Meaning