• LCD Screen 480VAC MPPT VFD Solar Pump Inverter GPRS Remote Control
LCD Screen 480VAC MPPT VFD Solar Pump Inverter GPRS Remote Control

LCD Screen 480VAC MPPT VFD Solar Pump Inverter GPRS Remote Control

Product Details:

Place of Origin: China
Brand Name: ZK
Certification: CE IEC
Model Number: SG320

Payment & Shipping Terms:

Minimum Order Quantity: 1pcs
Price: 70usd to 200usd
Packaging Details: paper cartons package
Delivery Time: 3-5 days
Payment Terms: T/T
Supply Ability: 5000pcs per month
Get Best Price Contact Now

Detail Information

Power: 0.75kw To 400kw DC Voltage Input: 350V To 800V
AC Input: 380V/480V Local/remote Control: Yes
Current Range: 1.5kw To 800A Pumps Proteciton: Over Voltage, Under Voltage, Over Current
Easy Operation: Farmer Easy Press Button Operation Timer Control: Yes
Lcd: Yes Gurantee Time: 18 Months After Shipping
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480VAC MPPT VFD Solar Pump Inverter


LCD Screen MPPT VFD Solar Pump Inverter


SG320 MPPT Solar Inverter

Product Description

SG320-4T solar pump inverter for 380V/480VAC pumps


Solar pumping systems can be applied to all forms of daily use, water pumping for drinking water supply for remote villages and farms without connection to the water grid, for agricultural use such as livestock watering, agricultural irrigation, forestry irrigation, pond management, desert control, and industrial use such as waste water treatment etc.
In recent years, with the promotion of the utilization of renewable energy resources, solar pumping systems are more and more used in municipal engineering, city centre squares, parks, tourist sites, resorts and hotels, and fountain systems in residential areas.


The PV generator, an aggregation of PV modules connected in series and in parallel, absorbs solar irradiation and converts it into electrical energy, providing power for the whole system. The pump drive controls and adjusts the system operation and converts the DC produced by the PV module into AC to drive the pump, and adjusts the output frequency in real-time according to the variation of sunlight intensity to realize the maximum power point tracking (MPPT). The pump, driven by 3-phase AC motor, can draw water from deep wells, rivers and lakes and pour it into storage tanks or reservoirs, or be connected directly to the irrigation system, fountain system, etc. According to the actual system demand and installation condition, different types of pumps such as centrifugal pump, axial flow pump, mixed flow pump or deep well pump can be used.

Solar pump system constitution.


LCD Screen 480VAC MPPT VFD Solar Pump Inverter GPRS Remote Control 0


SG320 Solar pump inverter operation theory and features


Solar water pumping solution is a fully automatic system designed to provide water at affordable cost for people with limited or no access to electricity. It uses the most advanced SG320 Solar variable speed drive to regulate the speed of a 1/3-phase AC motor depending upon the solar energy available from the solar panel

The solar pump inverter uses the maximum power point tracking (MPPT) control program to improve the efficiency of solar energy systems. The output of the photovoltaic (PV) cell is proportional to its area and intensity, while the output voltage is limited by p-n junction from 0.6 to 0.7 V. Therefore when the output voltage is constant, output power is proportional to intensity and surface area. The current and voltage at which the PV cell generates maximum power is known as the maximum power point.


Several advantages of SG320 solar pump inverter

  • Maximum power point tracking (MPPT) with fast response and stability operation, up to 99.80% efficiency.
  • Enable to drive for 1 phase AC pumps or 3 phase AC pumps
  • Enable to drive for PMSM high speed and high efficiency pumps without motor ID auto tuning
  • Dry run (under load ) protection, lowest speed auto tuning , Pumps maximum current protection, Minimum power input protection...
  • The PQ (power/flow) performance curve enables to calculate the flow output from the pump
  • Dual mode AC and DC power supply input is available
  • Digital signal of water level sensor and analog signal of water level sensor for water tank fulling detect.
  • Dedicated hardware design with dual CPU, independent air duct desige
  • IGBT module such as Infineon, Fuji,TYCO , Star power to ensure good quality
  • Enhanced lightning protection module
  • GPRS remote control module for distance monitoring, control, parameters modification, and history data record..
  • Efficiency is higher than 99.5%, power factory not less than 0.96 for below 15kw inverte


SG320 series solar pump inverter technical specification


SG320 solar pump inverter specification when FA-00 set to 1&2 for solar pumping controlling function.
Recommended MPPT voltage range

Vmp 260 to 355VDC for 2S ( 150V to 350VDC input, 3PH 220 to 240VAC output)

Vmp 486 to 650 VDC for 4T ( 250V to 800VDC input, 3PH 380 to 460VAC output)

Recommended input VOC and Vmp ( voltage at Max Power point voltage )

VOC 184(VDC), Vmpp 155(VDC) for 1S model or 110V AC pumps

VOC 372(VDC), Vmpp 310(VDC) for 2S model or 220V AC pumps

VOC 648(VDC), Vmpp 540(VDC) for 4T model or 380V AC pumps

Motor type

Control for permanent magnet synchronous motor and asynchronous motor pumps.

1 phase or 3 phase 220VAC pumps.

Rated output voltage 3-Phase,110V/160V/220V. 3-phase, 220V/380V/460V
Output frequency range 0~maximum frequency 600Hz. Resolution 0.01 Hz
MPPT efficiency 99.7%, more efficiency if use to drive PMSM pumps
Ambient temperature range

G-type for submersible pumps, 150% rated current for 60s, 180% rated current for 2s .

P type for general pumps, 120% rated current for 60s, 150% rated current for 2s

Solar pump control special performance MPPT ( maximum power point tracking), CVT (constant voltage tracking), auto/manual operation, dry run protection, low stop frequency protection, minimum power input, motor maximum current protection, flow calculating, energy generated calculating and water tank level detected
Protection function Phase loss protection, phase short circuit protection, ground to phase circuit protection , input and output short circuit protection. Stall protection, lightning protection
Protection degree IP20, Air force cooling
Running mode MPPT or CVT
Altitude Below 1000m; above 1000m, derated 1% for every additional 100m.


AC input backup circuit

CE, Design based on vector control drive S300 and S3200 series, more specification please refer to S300 or S320 vector control drive operation manual
Auto stop and auto restart

Control by external switch, float switch, Rs485 communication.

It will auto start at morning when get enough power from sunlight, and stop at sunset when power is less from solar panel under terminals control mode

Technical specification when it used for speed and torque controlling of motor as FA-00 set to 0.
voltage, frequency

Single phase 220V, 3 phase, 220V,380V, 660V and 1140V. Input

Power 0.75kw to 37kw.

Control mode 0: VF control ; 1: Vectorized VF control ; 2:Open loop vector control 1 ; 3: High performance open loop vector control 2
Maximum frequency 0-650Hz
Multiple-functions PID Control, Carrier Frequency Adjustable, Current Limiter, Speed Search, Momentary Power Loss Restart,16 Step Speed (Max), 3-Wire connection, Slip Compensation, Frequency Jump, DC braking, Upper/Lower Frequency, Torque control, Compatible for PMSM and IM, built in RS485, counting, fault information checking, fully fault protection function, frequency combination reference.


SG32-2S 220V solar pump inverter models and specification

SN Models

Rate current


Output voltage ( VAC) Applicable for pumps External of drive size(mm) MPPT voltage (VDC) Weight
SG320-4T 380V solar pump inverter
12 SG320-1K5GB-4T 3.7A 0-380/460VAC 1.5KW 185*125*159 540/650 2
13 SG320-2K2GB-4T 5A 0-380/460VAC 2.2KW 185*125*159 540/650 2
14 SG320-4K0GB-4T 10A 0-380/460VAC 4.0KW 185*125*159 540/650 2.5
15 SG320--5K5GB-4T 13A 0-380/460VAC 5.5KW 247*160*178 540/650 3.5
16 SG320-7K5GB-4T 17A 0-380/460VAC 7.5KW 247*160*178 540/650 4
17 SG320-011GB-4T 25A 0-380/460VAC 11KW 247*160*178 540/650 4.5
18 SG320-015GB-4T 32A 0-380/460VAC 15KW 247*160*178 540/650 4.8
19 SG320-018GB-4T 37A 0-380/460VAC 18KW 350*225*195 540/650 10.5
20 SG320-022GB-4T 45A 0-380/460VAC 22KW 350*225*195 540/650 11
21 SG320-030GB-4T 60A 0-380/460VAC 30KW 400*256*200 540/650 14
22 SG320-037GB-4T 75A 0-380/460VAC 37KW 400*256*200 540/650 14
23 SG320-045GB-4T 90A 0-380/460VAC 45KW 689*525*415 540/650 34
24 SG320-055GB-4T 110A 0-380/460VAC 55KW 689*525*415 540/650 34
25 SG320-075GB-4T 150A 0-380/460VAC 75KW 689*525*415 540/650 35
26 SG320-090GB-4T 180A 0-380/460VAC 90KW 825*510*525 540/650 71
27 SG320-110GB-4T 220A 0-380/460VAC 110KW 825*510*525 540/650 75
28 SG320-132GB-4T 260A 0-380/460VAC 132KW 930*579*375 540/650 100
29 SG320-160GB-4T 320A 0-380/460VAC 160KW 930*579*375 540/650 130
30 SG320-**GB-4T ** 0-380/460VAC 200-400 ** 540/650 **


 SG320 advantage and good hardware design. 


LCD Screen 480VAC MPPT VFD Solar Pump Inverter GPRS Remote Control 1 


LCD Screen 480VAC MPPT VFD Solar Pump Inverter GPRS Remote Control 2

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