ServoL7NHFVerification pending — cross-check with the official manual
L7NHF AL-41 — Control Power Fail
Alarm — operational, inspection needed
CAUSE
Why does it occur?
- Control power supply (C1/C
- fault
REMEDY · Step by step
How to fix it?
Check control power wiring
Do not reset repeatedly before identifying the cause. Repeated resets while ignoring a trip/alarm can cause secondary damage (IGBT failure, motor winding damage, etc.).
SOURCE
Related manual page
CALLBACK
Request an expert callback
A 12-year automation/SI engineer responds directly. Reply within 1–3 business days.
Quote / inquiry form →