InverteriS7Verified · sol.ls-electric.com
iS7 H/W-Diag — H/W-Diag
Trip — immediate stop
CAUSE
Why does it occur?
Internal memory (EEPROM) fault, ADC offset error, CPU malfunction (Watch Dog-1, Watch Dog-2).
REMEDY · Step by step
How to fix it?
- Power off and on
- If persistent, contact service center
- Inverter replacement may be needed
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