Servo × Spindle Alarms - Mitsubishi Electric MELDAS C6 Instruction Manual

7.3 Servo ⋅ Spindle Alarms
This section describes alarms occurred by the errors in the servo system such as the drive unit‚ motor
and encoder, etc. The alarm message‚ alarm No. and axis name will display on the alarm message
screen. The axis where the alarm occurred and the alarm No. will also display on the servo monitor
screen and the spindle monitor screen respectively. If several alarms have occurred‚ up to two errors
per axis will display on the servo monitor screen and the spindle monitor screen respectively.
(The bold characters are the messages displayed on the screen.)
S
(Note 1) The alarm class and alarm reset class combinations are preset.
(Note 2) The resetting method may change according to the alarm class.
Alarm No.
10
11
12
13
14
15
16
17
18
19
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SERVO ALARM : ××
(Refer to the separate table for S02, S51 and S52.)
Alarm class Alarm reset class
S01 PR
S03 NR
S04 AR
For example, even if "S03 SERVO ALARM: NR" is displayed, it may be necessary to turn the NC
power ON again.
Name
Insufficient voltage
Axis selection error
Memory error 1
Software processing
error 1
Software processing
error 2
Memory error 2
Magnetic pole
position detection
error
A/D converter error
Motor side detector:
Initial
communication error
Detector
communication error
in synchronous
control
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7. List of Alarms
7.3 Servo ⋅ Spindle Alarms
0 0 ∆∆
Axis name
Alarm No.
Alarm reset class
Alarm class
After removing the cause of the alarm, reset the
alarm by turning the NC power ON again.
After removing the cause of the alarm, reset the
alarm by inputting the NC RESET key.
After removing the cause of the alarm, reset the
alarm by turning the drive unit power ON again.
Insufficient PN bus voltage was detected in main circuit.
Setting of the axis No. selection switch is incorrect.
A CPU error or an internal memory error was detected during the
power ON self-check.
Software processing has not finished within the specified time.
Software processing has not finished within the specified time.
A CPU error or an internal memory error was detected during the
power ON self-check.
Initial magnetic pole for motor control has not been formed yet.
An error was detected in the A/D converter for detecting current FB.
Initial communication with the motor end detector failed.
Initial communication with the motor end detector on master axis
failed when setting closed-loop current synchronous control. Or the
communication was interrupted.
IV - 34
Servo : Axis name
Spindle : "S", "T", "M", "N"
Resetting methods
Meaning