Appendix 2.3.5 Servo Warnings (S52) - Mitsubishi Electric C70 Setup Manual

MITSUBISHI CNC
Appendix 2 Explanation of Alarms

Appendix 2.3.5 Servo Warnings (S52)

Servo warning is displayed in the following format.
S S
Alarm class
S52
Error No. consists of four digits (0096 to). Servo warnings are explained in ascending order of the error No. The four
digits on the left part of each warning indicate the error No.
(Note) For the details of servo warnings, refer to your drive unit's instruction manual.
Drive unit warnings
0096 Scale feedback error
Details
An excessive difference in feedback amount was detected between the main side detector and the
MPI scale in MPI scale absolute position detection system.
- Reset method: Automatically reset once the cause of the warning is removed.
0097 Scale offset error
Details
An error was detected in the offset data that is read at the NC power-ON in MPI scale absolute position
detection system.
009B Detec cnv: Mag pole shift warn
Details
The difference between the magnetic pole position after the phase Z has been passed (magnetic pole
shift amount:SV028) and the initially detected position is excessive in the built-in motor's incremental
control system. The magnetic pole is controlled by the initial detection value.
- Reset method: Automatically reset once the cause of the warning is removed.
009E Abs pos dtc: Rev count error
Details
An error was detected in the revolution counter data of the absolute position detector. The accuracy of
absolute position is not guaranteed.
- Reset method: Automatically reset once the cause of the warning is removed.
009F Battery voltage drop
Details
The battery voltage to be supplied to the absolute position detector is dropping.
00A3 In initial setup of ABS posn.
Details
This warning is detected until the axis reaches the reference position during the initial setup of the
distance-coded reference check function. This warning turns OFF after the axis has reached the
position, thus set the value displayed on the drive monitor to the parameter.
This warning is detected during the initial setup of MBA405W. This warning turns OFF after the initial
setup is completed by having the axis pass the Z-phase of MBA405W and turning the NC power ON
again.
- Reset method: Automatically reset once the cause of the warning is removed.
450
Axis name
Error No.
Message
Alarm class
Message
Servo warning