Chapter 6 Operation Guidance - Veichi SI23-D1 series Manual

Solar water pump inverter

Table of Contents

6.1 Asynchronous Motor Pump Drive Operation Guidance

1) Wiring:

a. Confirmed the solar pump drive if mating with motor.

b. Correctly connecting "+""-" of solar panel to corresponding "+""-" pole of inverter or R, T wiring terminals. Otherwise it will

cause inverter damage.

c. Connect motor wire and ground wire to corresponding U, V, W, E terminals.

2). Parameters setting and trial run:

a. Set F0.00 to 0, F0.02 for 0, and F0.09, F0.11, F0.14, F0.15 parameters setting according to application site.

b. Set motor(pump) parameters according to nameplate of pump.

c. Set solar pump MPPT mode F14.001 for 1 or 2.

d. Press FWD button for trail running, and confirm the motor running direction.

3) Common problems

a, Q：Well-lit conditions, the pump is running, but the water is very small.

A：Check if the pump motor direction is reversed.

b, Q：Well-lit conditions, the drive is in standby mode 0.00Hz.

A：Check F14.01, observe what protection status is the drive in currently, check whether the parameters set is reasonable.

c, Q：DC current is incorrectly displayed.

A：Adjust F14.30, F14.31 for calibration.

d, Q：Well-lit conditions, frequency severe beating during operation.

A：Reasonably adjust F14.06 value, the adjustment is recommended to be in the vicinity of the default, too big or too small

will cause frequency oscillation.

6.2 Synchronous Motor Pump Drive Operation Guidance

1) Wiring:

a. Confirm if the solar pump drive matches with the motor.

b. Connecting "+""-" of solar panel to corresponding "+""-" of inverter or R, T wiring terminals. Otherwise it will cause inverter

damage.

c. Connect motor wire and ground wire to corresponding U, V, W, E terminals.

2) Parameters setting and trial run:

a) . Set F0.00 to 6, F0.02 for 0, and F0.09=100.00, F0.11=100.00; F0.14, F0.15 can be set according to demand.

b). Set motor (pump) parameters according to nameplate of pump. Then Set F5.20 for 1, the keypad will show T-00, press FWD

to start motor auto tuning. This process takes about three minutes;

Note: 1. If you can disconnect the motor and load, self-learning would be better;

2. The self-learning need to be done with enough sunshine and when the solar panels can provide enough energy.

c). Set solar pump MPPT mode F14.00 for 1 or 2.

d). Press FWD button for trail running, and confirm the motor running direction.