PLCXSRVerified · sol.ls-electric.com
XSR OS2-3 — FAIL: Internal Relays Fault (3 Blinks)
Critical — power cycle required
CAUSE
Why does it occur?
Red FAIL LED 3 pulses: Internal relays fault
REMEDY · Step by step
How to fix it?
If the malfunction cannot be clearly identified and remedied, stop the machine and contact LS A/S
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 ↗XSR-OS2C/S Safety Relay Manual V1.0 (Eng)
3.4 LED Indicator · p.21 · V1.0