Veichi SI23 Manual page 23

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