InverterS300Verified · sol.ls-electric.com
S300 Br Engaging Fail — Br Engaging Fail
Trip — immediate stop
CAUSE
Why does it occur?
Occurs when the brake does not actually engage even after a set time following a brake engage request.
REMEDY · Step by step
How to fix it?
Set DIN 01, 03, 05, 07, 09, 11, 13, 15 (DI1-DI8 Define) code to 55 (Brake Monitor Sel) to enable 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
Open manual ↗S300 Standard User Manual V1.6 EN (260120)
9.5 Trip/Warning List · 14장 Troubleshooting · p.732 · V1.6 (2026-01-20)