PLCXSRVerified · sol.ls-electric.com
XSR SYNC-FAIL — Dual-channel Input Synchronization Fail
Warning — monitor· AUTO-RESET
CAUSE
Why does it occur?
IN1 and IN2 inputs not activated within 1 sec; system stays OFF, IN1/IN2 LEDs alternate green flashing
REMEDY · Step by step
How to fix it?
Re-activate both safety inputs simultaneously within 1 second
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 ↗XSR Safety Relay 사용 설명서 (MF2/FB3/OS2/ES2 통합)
3.4 LED 표시 진단