SOLIS S5 Series User Manual

User Manual
8. Troubleshooting
Alarms
Cause Solution
• Input voltage low/missing
• Polarity reversed
• Main board damaged
No Information
(Blank Screen)
Test – DC switch OFF
• Check PV connections
• Check polarity
• Check voltage >200V
Test – DC Switch ON
• Check voltage >200V
• If DC voltage is “0” replace inverter
Initializing
(Inverter stuck
in this mode)
• Inverter is waiting for
driving signal
Test – DC switch OFF
• Check PV connections
• Check polarity
• Check voltage >200V
Test – DC Switch ON
• Check voltage >200V
• A cable may have been damaged or loosened
in shipping replace inverter
OV-G-V: Over
Grid Voltage
• Inverter detects grid
voltage as too high
Test – DC switch OFF
• Check AC at the inverter
• If AC measures high, adjust upper limit with
permission from utility
Test – DC Switch ON, full power
• Check AC at inverter test points
• Compare with LCD
• If AC measures high, cables between inverter
and interconnect are too small
• Check ampacity and voltage drop calculations
UN-G-V: Under
Grid Voltage
• Inverter detects grid
voltage as too low
Test – DC switch OFF
• Check AC at the inverter test points
• If AC measures low, adjust lower limit with
permission from utility
• Check LCD voltage reading, may be a bad
measurement circuit
Test – DC Switch ON
• Check grid standard
• Replace inverter
UN-BUS: DC
BUS voltage is
too low
• Inverter detects low DCV
on internal bus
Test
• Measure DC and AC voltages
• Compare with LCD
• Replace Inverter
• Internal damage
• Wire came loose during shipping
70

SOLIS S5 Series Specifications

General

Number of MPPTs	2
Output Voltage	230 V
Frequency	50/60 Hz
Max. AC Output Power	5000W
Operating Temperature Range	-25°C to +60°C
Rated AC Output Power	2.5 kW / 3 kW / 3.6 kW / 4 kW / 5 kW / 6 kW
Max. AC Output Current	21.7A
Cooling Method	Natural Convection
Humidity	0~100 %
Model	S5 Series