How to Solve 61 warning on SPF 5000 ES
61 fault means PV voltage is too high
Phenomenon
Trigger Condition
PV Input has exceeded 480V and last for 1 second
OR
PV input voltaeg has exceeded 470V and last for 10 seconds
Reason
1.For SPF 5000 ES, MAX PV input voltage is 450V, your configuration may exceed that.
2.MPPT board is something wrong
Solution
1. Firstly, please check PV side and make sure that PV input voltage is suitable ( less than 450V )
2.If normal, please try to replace MPPT board.