Solis_Manual_75_100K_5G_USA_V1.4

8. Troubleshooting
Alarms
Cause Solution
INI-FAULT:
Initialization
Protection
• Master and Slave DSP
have different values
Reset Inverter
• DC switch OFF
• Wait until all lights/LCD turn off
• DC switch ON
• Replace inverter
OV-T EM:
Temperature
Protection
• Inverter detects high
ambient temperature >60C
Inspect installation
• Check heatsink for obstructions/ventilation
• Is inverter in direct sunshine
• Measure ambient temperature near inverter
• If temp is in range replace inverter
PV ISO-P RO
01/02:
Ground
Protection
• Inverter detects low DC
insulation resistance
Inspect installation
• Reset inverter
• Note weather conditions when alarm occurs
• Measure insulation resistance
• If normal, measure in SAME weather as alarm
• Physically check cables
• Replace inverter
ARC-FAULT
• Inverter detects arc
in DC circuit
Inspect installation
• Check cable with string tester
• Physically check cables
• Inspect panel junction boxes
• Inspect cable connections
• Reset inverter
• Replace inverter
Table 8.1 Fault messages and descriptions
Screen OFF
with DC applied
• Inverter internally
damaged
• Do not turn off the DC switches as it may
damage the inverter.
Please wait for sunset and confirm the string•
current is less than 0.5A with a clip-on ammeter
and then turn off the DC switch. String current
above 0.5A is under load.
• Note: Damage due to wrong connections or fire
caused by removing string wires or opening
fuse holders under load is not covered in the
device warranty.
Reve-DC
• Please check the inverters’ PV string polarity,
if there are strings reversely connected wait for
the night when the solar irradiance is low and the
PV string current down below 0.5A. Turn off the
two DC switchs and fix the polarity issue.
If string polarity is correct, please confirm that all •
the PV strings have the same number of modules.
If not, please modify the system configuration.
• One of the DC string is
reversely connected
• OR different number of
modules are connected
to the string inputs
(Threshold varies between
different conditions)
.68. .69.
Dimensions (W*H*D)
Weight
1065*567*344.5 (mm) / 41.9*22.3*13.5 (inch)
3/PE~480
Max. DC input voltage (Volts)
MPPT voltage range (Volts)
Full load MPPT voltage range (Volts)
Max. input current (Amps)
MPPT number/Max input strings number
Rated grid voltage (Volts)
Rated output current (Amps)
Power Factor (at rated output power)
Max.efficiency
EU efficiency
MPPT efficiency
Model
Topology
Self consumption (night)
Operating ambient temperature range
Relative humidity
Ingress protection
Noise emission
Cooling concept
Max.operation altitude
AC connection
Compliance
DC connection
1000
8*26
8*40
8/16
0.8leading~0.8lagging
60
98.7%
98.3%
99.5%
Transformerless
＜2W
-13...140 ℉ / -25℃...+60℃
0~100%
Display
Communication connections
Warranty
Rated output power (Watts)
Max. output power (Watts)
Max. apparent output power (VA)
MC4
OT Terminal connectors（Max.185mm²）
LCD,2x20Z
RS485, Optional: Wifi, PLC, Ethernet
10 years standard (extend to 20 years)
600
75000
75000
75000
90.2
THDi (at rated output power)
<3%
Start-up voltage (Volts)
Max short circuit input current (Amps)
Rated DC voltage (Volts)
Rated grid frequency (Hertz)
180...1000
195
UL 1741, I EEE 1547, UL 1699B, UL 1998,
FCC, UL 1741SA, California Rule 21
Solis-75K-5G-US
85kg
TYPE 4X
≤65dB(A)
Intelligent redundant cooling
13120ft / 4000m
550...850
9. Specifications