Back to wizard
M
MitsubishiMDS-E (DRIVE)
4D.88 — ALARM 4D.88 — SAFETY CIRCUIT: STO ERROR
1
2
3
4
5
6
Step 1 / 6
Turn the NC and drive unit power OFF, wait for the unit to completely discharge, and turn the power back ON (PR reset). If the read-back diagnosis error was caused by a temporary processing glitch in the safety circuit, this will clear the alarm.
Need professional support or original spare parts?
With 25+ years of CNC industry experience, I provide brand-independent on-site support and original spare parts services.