Warning- SEQ2

Display- Wakeup Timeout

Description-

Magnitude and phase voltage synchronization failed to be achieved within the time threshold.The grid-sync feedback via CAUX4 unable to sustain waveform for 30 sec.

Resolution-

1. Check for collapsing PV array voltage when inverter is entering power-export mode

2. Check Sync transformers TR5 TR6 TR7 in LC cabinet:

■ Fuses F78 -83 1-Amp

■ Resistors R7A-C | R8A-C | R9A-C wiring at TBT/R5 /R6 /R7

3. Check CAN Board CAUX4 connector J5 wiring to/from TBT/R5 /R6 /R7