Veichi SI23 - Page 23

SI23 Solar Pump VFD Manual
22
E.iLF
Input phase
loss
●3-phase input power open
phase
●Check 3-phase power supply and
the phase
●Check 3-phase power supply wiring
E.oLF
Output phase
loss
●3-phase output power open
phase
●Check 3-phase output voltage and
current
●Check wiring
E.Gnd
Output earth
terminal short
circuit.
●Check wiring and insulation
●Output earth
E.HAL
Current
detection fault
●Detect circuit fault
●Phase imbalance
●Seek support from factory
●Check motor and wiring
E.PAn
Keyboard
connect fault
●Keyboard wire fault
●Keyboard component
damage
●Check keyboard wire
●Seek support from factory
E.CE
●Unsuitable
baud rate
setting
●Communicatio
n wire breaks
●Communicatio
n format does
not match upper
machine.
●Set suitable baud rate
setting
●Check communication wire.
●Make sure right
communication format
●RS485communication fault
E.CPE
Parameter copy
fault
●Parameter copy
communication is fault
●Copy keyboard does not
match the VFD
●Check wire
●Select the specified external
keyboard model
Alarm Information and Description in Detail
Keypad
display
Alarm
code
Alarm type
Possibility reason
Troubleshooting
A.LPn
Dormancy
Protection
●Solar voltage is too low
●Check the solar power
●Check F21.11/F21.12/F21.13
settings
A.LFr
Low Frequency
Protection
●Output frequency is too low
●Solar power is not enough
●Check the solar power
●Check F21.14/F21.15/F21.16
settings
A.LuT
Dry Run
Protection
●Current is very low
●Pump load is very low
●Water is not enough in
borehole
●Please check the water level in
borehole
●Check F21.17/F21.18/F21.19
settings