InverteriS7Verified · sol.ls-electric.com
iS7 NTC Open — NTC Open
Trip — immediate stop
CAUSE
Why does it occur?
- Abnormality in IGBT temperature sensor
- Ambient temperature out of range or internal sensor fault
REMEDY · Step by step
How to fix it?
- Keep ambient temperature within range (-10~50°C)
- Contact service center
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 PDF ↗SV-iS7 User Manual Start-up V1.00 (150710) EN
p.71