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5. TROUBLE SHOOTING
Sunverter B Solar Pumping Inverters have complete protections. When a fault occurs,
the inverter will take protection actions: the general protection is to instantly stop the
output of the motor driving signal (shut down) and prohibit restarting for a period of
time. When the fault or protection occurs, the inverter will enter the fault display state,
and the operation panel will display blinking fault code. After the fault or protection is
cleared, the inverter will automatically carry out delayed restart. If the fault or protection
occurs repeatedly for a certain number of times, the inverter will stay in the fault display
state and not restart automatically anymore.
Users can press to reset after eliminating the fault. If the fault still exists after
reset, please contact a Dayliff retailer.
5.1 Common Faults and Solutions
5.1.1 No Display after power on
Check whether the inverter input power supply is normal and meet the inverter power
requirements. If there is no abnormality in the input power supply, the inverter internal
circuit should be faulty. Please contact Dayliff for help.
Function
Code
Name
Description
Modi-
ability
Setting
Range
Default
Value
F17.11
DC Bus
Voltage
Unit: V
0 V
0.0~
2000.0
F17.12
Switch Signal
Input
Terminal
State
0
0x00~
0x1F
BIT4 ~ BIT0
DI5~DI1
F17.13
Switch Signal
Output
Terminal
State
0
0x00~
0x03
F17.19
AIN Input
Voltage
Unit: V
0.00 V
0.00~
10.00
F17.25
Motor Power
Factor
Unit: 0.01
0.0
-1.00~
1.00
F17.26
Current
Operating
Time
Unit: minute
0 m
0~
65535
F17.27
Motor
Overload
Times
Once the parameter reaches 100, the
inverter will stop and display OL1 fault.
0
0~100
