Mitsubishi Electric MELDAS C6 Instruction Manual page 453

Alarm No.
42
43
44
45
46
47
48
49
4A
4B
4C
4E
4F
50
51
52
53
54
55
57
58
Downloaded from ManualsNet.com
7.3 Servo ⋅ Spindle Alarms
Name
Feedback error 1
Feedback error 2
Inappropriate coil
selected for C axis
Fan stop
Motor overheat
Regenerative
resistor overheat
Motor side detector:
CPU error 2
Motor side detector:
Overspeed
Motor side detector:
Absolute position
data error
Motor side detector:
Relative position
data error
Current error at
magnetic pole
detection
NC command mode
error
Instantaneous
power interruption
Overload 1
Overload 2
Excessive error 1
Excessive error 2
Excessive error 3
External emergency
stop error
Option error
Collision detection 1:
G0
search engine
7. List of Alarms
An error was detected in the feedback signals of the pulse motor end
detector in a servo system, or in PLG's feedback signals in a spindle
system.
Excessive difference was detected in position data between the
motor end detector and the machine end detector in a servo system.
In a spindle system, an error was detected in the encoder feedback
signals.
When using a coil changeover motor, C-axis was controlled while the
high-speed coil was selected.
A cooling fan built in the drive unit stopped, and the loads on the unit
exceeded the specified value.
Thermal protection function of the motor or in the detector, has
started its operation.
Thermal protection function of the regenerative resistor, has started
its operation.
A CPU error was detected in the linear scale of a linear servo
system.
The specified max. speed was detected in the linear scale of the
linear servo system.
An error was detected in the absolute position detection circuit in the
linear scale of a linear servo system.
An error was detected in the relative position detection circuit in the
linear scale of a linear servo system.
A current error was detected in the IPM spindle motor when the
initial magnetic pole was being formed.
The mode outside the specification was input in spindle control mode
selection.
The power was momentarily interrupted.
Overload detection level became over 100%. The motor or the drive
unit is overloaded.
Current command of more than 95% of the unit's max. current was
being continuously given for longer than 1 second in a servo system.
In a spindle system, the load over the continuous rating was being
applied for longer than 30 minutes.
A difference between the actual and theoretical motor positions
during servo ON exceeded the setting value in a servo system. In a
spindle system, a difference between the position command and
position feedback exceeded the setting value.
A difference between the actual and theoretical motor positions
during servo OFF exceeded the setting value.
When an excessive error 1 occurred, detection of the motor current
failed.
There is no contactor shutoff command, even after 30 seconds has
passed since the external emergency stop was input.
An invalid option function was selected.
When collision detection function was valid, the disturbance torque
in rapid traverse (G0) exceeded the collision detection level.
IV - 37
Meaning