L7N AL-35 (AL-35 Low Battery Error) — cause?

Low voltage of the absolute encoder back-up battery. To use an absolute encoder as incremental, set [0x2005]=1 to disable this alarm.

L7N AL-35 — how to fix?

Check the battery connection and replace the battery if its voltage is below 3.3V. After replacing, re-apply power and re-do the origin/home operation.

ServoL7NVerified · sol.ls-electric.com

L7N AL-35 — AL-35 Low Battery Error

Warning — monitor

CAUSE

Why does it occur?

Low voltage of the absolute encoder back-up battery
To use an absolute encoder as incremental, set [0x2005]=1 to disable this alarm

REMEDY · Step by step

How to fix it?

Check the battery connection and replace the battery if its voltage is below 3.3V
After replacing, re-apply power and re-do the origin/home operation

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

Verified · sol.ls-electric.com

XDL-L7N 200V Series AC Servo Drive User Manual V1.7 (EN)

p.265

Open PDF ↗

L7N AL-35 — AL-35 Low Battery Error

Why does it occur?

How to fix it?

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