Mitsubishi Electric M800 Series Manual page 66

M800/M80/E80/C80 Series Alarm/Parameter Manual
3 Servo/Spindle Alarms (S)
No. Name
41 Feedback error 3
42 Feedback error 1
43 Feedback error 2
45 Fan stop
46 Motor overheat /
Thermal error
48 Main side encoder: Error 5 An error was detected by the encoder connected to the main side.
49 Main side encoder: Error 6
4A Main side encoder: Error 7
4B Main side encoder: Error 8
4C Current error at initial
magnetic pole estimate
4D Dual signal error
4E NC command mode error
4F Instantaneous power
interrupt
50 Overload 1
51 Overload 2
52 Excessive error 1
53 Excessive error 2
54 Excessive error 3
56 Commanded speed error
58 Collision detection 1: G0
59 Collision detection 1: G1
5A Collision detection 2
(Note 1) Definitions of terms in the table are as follows.
Main side encoder: Encoder connected to CN2
Sub side encoder: Encoder connected to CN3
(Note 2) Resetting methods
NR: Reset with the NC RESET button. This alarm can also be reset with the PR and AR resetting conditions.
PR: Reset by turning the NC power ON again. This alarm can also be reset with the AR resetting conditions.
When the control axis is removed, this alarm can be reset with the NC RESET button. (Excluding alarms 32 and 37.)
AR: Reset by turning the NC and servo drive unit power ON again.
Details
Either a missed feedback pulse in the motor side encoder or an
error in the Z-phase was detected in the full closed loop system.
Either a missed feedback pulse in the position detection or an
error in the Z-phase was detected. Or the distance-coded
reference check error exceeded the allowable value when the
distance-coded reference scale was used.
An excessive difference in feedback was detected between the
machine side encoder and the motor side encoder.
An overheat of the power module was detected during the
cooling fan stopping.
Either the motor or the motor side encoder detected an
overheat.
Or, the thermistor signal receiving circuit of the linear motor or
direct-drive motor was disconnected.
Or, the thermistor signal receiving circuit was short-circuited.
The error details are different according to the connected encoder.
Refer to "Encoder alarm".
Current detection failed at the initial magnetic pole estimation.
An error was detected in the signal related to the dual signal.
Refer to "Dual signal error (4D)" for details.
An error was detected in the control mode send from the NC.
The control power supply has been shut down for 50ms or more.
Overload detection level became 100% or more. The motor or
the drive unit is overloaded.
In a servo system, current command of 95% or more of the unit's
max. current was given continuously for 1 second or longer. In
a spindle system, current command of 95% or more of the
motor's max. current was given continuously for 1 second or
longer.
A position tracking error during servo ON was excessive.
A position tracking error during servo OFF was excessive.
There was no motor current feedback when the alarm
"Excessive error 1" was detected.
The encoder has detected that the commanded speed
exceeded 1.15 times of the rapid traverse rate (rapid), or the
motor rotation speed exceeded the maximum speed.
A disturbance torque exceeded the allowable value in rapid
traverse modal (G0).
A disturbance torque exceeded the allowable value in the
cutting feed modal (G1).
A current command with the maximum drive unit current value
was detected.
Reset
method
49
Servo Spindle
stop method stop method
PR Dynamic stop Coast to a stop
PR Dynamic stop Coast to a stop
PR Dynamic stop Coast to a stop
PR Dynamic stop Coast to a stop
NR Deceleration Deceleration
stop stop
Dynamic stop Coast to a stop
NR Dynamic stop Coast to a stop
NR Deceleration Deceleration
stop stop
NR Deceleration Deceleration
stop stop
NR Deceleration Deceleration
stop stop
NR Deceleration Deceleration
stop stop
NR Deceleration Deceleration
stop stop
NR Dynamic stop -
NR Dynamic stop Coast to a stop
NR - Deceleration
stop
NR Max cap dec -
stop
NR Max cap dec -
stop
NR Max cap dec -
stop
IB-1501279-H