VEICHI SI32 Solar Water Pumping Inverter, Controller, Drive

Product Features

SI32 Solar Water Pumping Inverter Overview

SI32 series solar water pumping inverter is the latest pump inverter developed by VEICHI.

SI32 solar water pumping inverter Collection

Product Features

IP65 for SI32 Series

Secured waterproof design for durable and reliable operation.
Outdoor application with AC and DC input for continuous operation.

Max. power up to 22kW

A wide range of motor types compatible up to 6,500rpm for high-efficiency operation.

Anti-reverse connection and anti-backflow

Enhanced the system security for lower potential risks due to improper operation or unforeseen circumstances.

4 flexible control modes integrated for constant pressure operation

Easily set F22.03 [Application Macro]=3 for speed mode, pressure mode, pressure start/stop mode, and timer mode.
Among them, the speed in the speed mode and time mode is decided by the speed parameters while the speed of pressure mode is regulated by PID control.

Control Model of SI32 solar water pumping inverter

PID Disconnection Detection

1. Robust safety guarantee in pressure mode and pressure start-stop mode.

With reference to the alarm threshold setting, the system is able to ensure pressure control accuracy while responding to potential faults and hazardous situations, improving overall efficiency and safety.

IOT platform of SI32 solar water pumping inverter.jpg

2. Multiple pressure sensors

Built-in common sensor types and ranges are free to be changed by users.

3. Real-time monitoring and control of water levels in wells and cisterns by float switches

The float switch triggers a signal to start the pump when the cistern drops to a certain level, and stops it when the water level reaches the upper limit, thus maintaining the water in a reasonable range, and at the same time, it can prevent the pump from idling work when there is less or no water at all in the well.

MPPT efficiency up to 99.8%

Maximize the efficient capture and conversion of solar energy with minimal energy loss.

PV-dedicated Features of SI32 solar water pumping inverter

Product Application

Agricultural irrigation, desert governance, grassland livestock, urban springs, household water.

Technical Specifications

Input
DC voltage	250~850V DC
Sugg. voltage	620~750V DC
Max. MPPT efficiency	≥99.9%
AC voltage/frequency	3PH 380~480V 50/60Hz
Allowable fluctuation	-15%~10%, voltage imbalance rate:＜3%; frequency: ±5%

Output
Output voltage	Output under rated conditions: three-phase, 0~input voltage (converted to AC values), deviation＜5%
Output frequency	0.00Hz~600.00Hz
Output frequency accuracy	±0.5% of the max. frequency

Control Performance
Motor type	Asynchronous motor, synchronous motor, and synchronous reluctance motor
Control mode	V/F control, SVC, FVC, V-F split control
Modulation	SVPWM
Carrier frequency	1.0kHz~16.0kHz
Overload capacity	150% of rated load for 60s, 180% of rated load for 10s and 200% of rated load for 0.5s under 4kHz

Display and Keys
Digital tube	Built-in panel for parameter display
Key function	Single and combined presses against accidental operation

Model and Appearance
SI32-D5-004G-A	Rated Power(kW): 4 DC Input(V): 250~850 AC Input(V): 380~480 Rated Output Current(A): 10
SI32-D5-5R5G-A	Rated Power(kW): 5.5 DC Input(V): 250~850 AC Input(V): 380~480 Rated Output Current(A): 13
SI32-D5-7R5G-A	Rated Power(kW): 7.5 DC Input(V): 250~850 AC Input(V): 380~480 Rated Output Current(A): 17
SI32-D5-011G-A	Rated Power(kW): 11 DC Input(V): 250~850 AC Input(V): 380~480 Rated Output Current(A): 25
SI32-D5-015G-A	Rated Power(kW): 15 DC Input(V): 250~850 AC Input(V): 380~480 Rated Output Current(A): 32
SI32-D5-018G-A	Rated Power(kW): 18.5 DC Input(V): 250~850 AC Input(V): 380~480 Rated Output Current(A): 38
SI32-D5-022G-A	Rated Power(kW): 22 DC Input(V): 250~850 AC Input(V): 380~480 Rated Output Current(A): 45