VEICHI SI22 Solar Pump Inverter Instruction Manual

SI22 Solar Pump Inverter Manual

F2.00:  1 F0.02:  1		Terminal control
F2.29:   1		Active relay
FE14: 20.00		Min Frquency
FA.19=00		Single-phase motor

Security Tips

1. Only qualified personnel can operate the equipment.
2. AC power supply should not be connected with output ports U, V, and W, otherwise, there is a danger of damage to the frequency inverter.
3. After electrified, it is forbidden to contact the internal wiring board and its parts. Otherwise, it will cause the danger of electric shock
4. The user can only operate on it after 5 minutes when cutting off power.

Technical Specification

Solar pump inverter power(KW)	Pump		Max solar power input (KW)	Max DC input voltage V	Recommend Voc voltage (V)	Rated output current(A)	Output frequency (Hz)
	Rated power (KW)	Rated voltage( V)
SI22-D1 series, DC60-400VDC input, 3 phase 110-230VAC output, suitable for 110VAC pump
0.75	0.75	110	1.0	400	175~380	7A	0-320
1.5	1.5	110	1.95	400	175~380	10A	0-320
SI22-D3 series, D60V-400V input, 3 phase 220-240VAC output, suitable for 220VAC pump
0.75	0.75	220	1.0	400	360~400	4A	0-320
1.5	1.5	220	1.95	400	360~400	7A	0-320
2.2	2.2	220	2.86	400	360~400	10A	0-320

Note: SI22 products can also drive single-phase pumps and please select the current-matched model.

Product Model

Appearance and Dimension

Solar Pump Controller Wiring

Standard Wiring for three-phase motor

Connection for single-phase motorNote: The first connection solution for better performance is recommended.

Basic Operation

Indicator and Key

Icon	Name	Function
	Power	ON: The power is 60-400VDC. OFF: Power is abnormal.
	Status	OFF: It is ready to run； BLINKING: Fault or alarm comes； ON: The four indicates will be on in turn and stand for output frequency is approaching 30%, 50%, 70%, and 90% of rated frequency in sequence
	Start/Stop	OFF Status: Press it to run ON Status: Press it to stop BLINKING Status: Press it to reset

Dial-up and External Port:

Icon	Name	Function
	Keyboard	Support optional keyboard
	IOT	Support optional IOT to access online monitoring, offline data storage, and WIFI hotspot
	Quick Dial-up	Default D1 for AC110V pump and D3 for AC220VC pump can be selected by quick dial-up (any D1/D3 switch will only take effect after power on again)

Trial Run

1. Please double-check the cable connector according to the user manual.
2. Press the “Start/Stop” button to run it, and check whether the pump rotary direction is correct. If the direction is correct, please go to step(4); Otherwise, please go to step (3).
3. Press the “Start/Stop” button to stop it and change any two cables to adjust the direction; Press the “Start/Stop” button and then it will run smoothly.
4. The default setting for Start/Stop will store the operation command while power off. So it will automatically run or stop along with sunrise or sunset.

Quick Troubleshooting

1. Power is still off when connecting power: please check whether the input voltage is 60-400VDC or check the cable connections of the solar array.
2. Status indicator is blinking: please reset it by pressing “START/STOP” for 1 second. Otherwise, please ask for support.

Documents / Resources

VEICHI SI22 Solar Pump Inverter [pdf] Instruction Manual SI22, Solar Pump Inverter