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6. Troubleshooting
6 - 8
Drive unit alarm
No. Alarm name SV SP Alarm details Reset
7F Power reboot request
A mismatch in the program mode selection was detected. Turn the drive
unit power ON again.
PR
88 Watch dog
§ §
The system is not operating normally. AR
89 Detector converter unit 2
connection error
§ §
With the servo, an error was detected in the connection with the analog
output linear scale for the MDS-B-HR unit. With the spindle, initial
communication with the MDS-B-PJEX was not possible.
PR
8A Encoder converter unit 2
communication error
§ §
With the servo, an error was detected in the communication with the
serial output linear scale for the MDS-B-HR unit. With the spindle, an
error was detected in the communication with the MDS-B-PJEX.
PR
8B Encoder converter unit 2 automatic
adjustment error
§
An abnormal signal from the PLG was detected during automatic
adjustment of the PLG.
PR
8C Encoder converter unit 2 judgment
error
§
A detector type not within the specifications was detected with the
MDS-B-PJEX.
PR
8D Encoder converter unit 2 CPU error
§ §
With the servo, a CPU error was detected with the MDS-B-HR unit.
With the spindle, a CPU error was detected with the MDS-B-PJEX unit.
AR
8E Encoder converter unit 2 data error
§
A data error was detected with the MDS-B-HR unit. PR
(Note 1) Motor stopping method applied when self-axis drive unit alarm occurs is indicated in SV for servo and in SP for spindle.
(Note 2) Servo (SV) alarm stopping method
{: Deceleration control (when SV048, SV055 or SV056 is set)
§: Dynamic brake stop
: Initial error (while motor is stopped)
(Note 3) Spindle (SP) alarm stopping method
{: Deceleration control (when SP038/bit0=1 is set)
§: Coast to a stop
: Initial error (while motor is stopped)