SPF 3500-5000ES 09Fault
SPF 3500-5000ES 09Fault 09fault meaning: Bus soft start failed Triggering condition: 1. BUS Voltage is lower than 400V，or Bus voltage is lower than 8 times of battery voltage OR 2. It can’t reach targe voltage in 30 seconds. Testing method: a. Just connect battery into the inverter. Don’t connect Utility input and PV …