Smart Green Power Sgp-si Series Solar Pumping Inverter User Manual

SGP-SI Series Solar Pumping Inverter
User ManualFigure 1 SGP solar pumping inverter

Safety Instruction

To ensure safe operation of solar pumping inverter, it must choose the right way of transportation, installation, operation and maintenance. Please be aware of the safety notices before operation:
Warning: Misuse will result in fire, serious injury to person or even death.
Caution: misuse will cause low or middle-grade injury to person or equipment damage.
Prompt: Point out some useful information
First Inspection
Caution
If inverter is damaged or missing parts, no installation allowed in case of any accidents.
Installation
Caution

1. It must be installed vertically for good convection cooling effect .
2. Keep under the condition of good ventilation opening or ventilating device. Never exposes directly to the sunlight.

Connection
Caution

1. All wire cable connection must be under the instruction of correct wiring diagram .
2. Handling by qualified electrical professionals, all wire cable should be wrapped with electrical tape for safety.

Storage
Caution
Placed in dry, dust‐free, no corrosive gas, liquid.
Temperature of the storage location must be at the ‐20℃ to +70℃.
Relative Humidity of the storage location must be between 5% to 90% range, and no condensation.

Chapter 1 System Introduction

1.1 Brief Introduction
A complete solar pumping system consist of solar array, pump and solar pumping inverter. SGP-SI series solar pumping inverter can convert the DC power from solar PV array to AC power to run pump motors.
Solar array, an aggregation of many solar modules connected in series and parallel, absorbs sunlight radiation and converts it into electrical energy, providing dynamical water for the whole system.
Inverter controls the system operation and adjust the output frequency in real-time according to the variation of sunlight intensity to realize the maximum power point tracking (MPPT).
Pump, drive by 3-phase AC motor, can draw water from the deep wells or rivers and lakes to pour into the storage tank or reservoir, or directly connect to the irrigation system, fountain system, etc.

Chapter 2 Solar Pumping Inverter

2.1 Inverter Specification
Model Description
Model numbers on name plate consist of numbers, symbols, and letters, to express its respective series, suitable power type, power level and other information.

2.2 Inverter Features

• Apply to all kinds of single phase or 3 phase AC induction motor .
• With Infineon IGBT .Maximum power point tracking (MPPT) algorithm for dynamic VI, fast response speed,
• Good stability, the efficiency of MPPT 99.99%;
• Both AC and DC input, but can not use DC and AC at the same time.
• For single phase inverter , MPPT working voltage is 180V~450V ; for three phase inverter , MPPT working voltage is 250V~800V .
• Remote control , support RS323/RS485 protocol.
• Outdoor working environment temperature: ‐10℃~+40℃
• Start in the morning and stop in the late afternoon full automatically.
• Full protections : overload , over current, over voltage , undervoltage ,short circuit , dry pumping etc, PV reversed connection protection.

2.3 Parameters:

2.4 Technical Parameter Table
2.4.1 Single phase inverter

2.4.2 Three Phase inverter

2.5 Inverter Introduction
2.5.1 Brief Instruction

2.5.2 Operation panel button and potentiometer function

	MENU/ESC	Enter or exit Level I menu
	ENTER/DATA	Enter the menu interfaces level by level, and confirm the parameter setting
	UP	Increase data or function code
	DOWN	Decrease date or function code
	SHIFT	Select the displayed parameters in turn in the stop or running state, and select the digit to be modified when modifying parameters

	RUN	Start the inverter in the keypad control mode
	STOP/RESET	Stop the inverter when it is in the running state and perform the reset operation when it is in the fault state
	JOG/REV	Perform function switchover (such as jog run and quick switchover of command source or direction)

2.5.3 Main Circuit Terminals
2.5.3.1 Schematic Diagram for Connection of Main Circuit Terminals

1. Connection diagram of main circuit for the inverter of 220 vFigure 4 Terminals Connection diagram of main circuit for the inverter of 220 v
2. Connection diagram of main circuit for the inverter of 380 v below 2.2 KWFigure 5 Connection diagram of main circuit for the inverter of 380 V below 2.2 KW
3. 3.7 kW~15 kW Connection diagram of main circuit for the inverter of 380 v 3.7 KW-15 KWFigure 6 Connection diagram of main circuit for the inverter of 380 V 3.7 kw-15 kw
4. Connection diagram of main circuit for the inverter of 380 v up 18.5 kwFigure 7 Connection diagram of main circuit for the inverter of 380 V over 18.5 kw

2.5.3.2 Instructions of main circuit terminals of inverter:

Terminals	Function Instruction
L,N	single-phase 220V input terminal, external connection of grid single phase 220V AC power
R,S,T	input terminal of AC 3-phase power, external connection of grid 3 phase AC power
U,V,W	output terminal of 3 phase power, external connection of AC 3 phase motor
P+,P-	Negative and positive terminals of DC power, external connection of brake unit terminal
P+,PB	External connecting of brake resistor terminal
P1,P+	External connection of DC electric reactor terminal
	Earth terminal

DANGER

• the voltage class of VD 300 A series inverter 3 phase power has 2 class: 220V, 380 V, before connecting power, please make sure the power class on inverter nameplate is the same with the accessing power. Otherwise do not connect.
• DC bus P+ P-terminal: take note that when power outrage there is residual voltage on DC bus P+ P- terminal, need to wait for a while until CHARGE LED off. Otherwise it is danger of electric shock.
• When selecting external brake unit, note the polarity of P= P- cannot be reversely connected, otherwise it can result in damage or even fire.
  Do not directly connect brake resistor to DC bus, it may result damage or fire.

WARNING

1. Input power L,N or R, S T: the cable connection at input side of the inverter has no phase sequence requirement.
2. Brake unit cable length should not exceed 10m, twisted pair or double cable parallel wiring should be used.
3. Brake resistor connecting terminal P+ P-: confirm whether the device has built-in brake unit, its brake resistor connecting terminal is effect. The brake resistor selection table 2-4 recommending value and the wiring distance should less than 5M.
   Other it can damage inverter.
4. External DC electric reactor connecting terminal P1 P+: for external DC reactor to 18.5 Kw and above power inverter, get rid off the connector between P1 P+ terminal during installation, reactor is installed between the 2 terminal.
5. Inverter output side U V W: the output side cannot connect capacitor or surge absorbed, otherwise it will affect inverter in self-protection frequently or damage.
6. In case the motor cable is too long, it may generate electrical resonance easily due to the impact of distributed capacitance, thus damaging the motor insulation or generating higher leakage current to invoke over current protection of the inverter. When the length of motor cables longer than 100 meters, it needs to install a AC output reactor.
7. Earth terminal PE:
   This terminal shall be earthed reliably, with resistance of earth cable of less than 10Ω.Otherwise, it may cause fault or damage the inverter.
   Do not share the earth terminal with zero line N terminal, otherwise it will result equipment abnormal running or damage.

2.5.4 Control Circuit terminal

1. Control terminals and Functional
2. Function description of control circuit
   

   Type	Terminal sign	Terminal name	Function
   Power supply	5V/10 V-GND	External 5V/10 V power supply	1.  provide +5V/10 V power supply for external-units, the maximum output current is 20 mA. J 15 jumper on main control board to select 5V or 10 V power output, default is 10 V. 2. It is generally used as the operating power supply for the external potentiometer. The potentiometer resistance range is 1 kΩ~10 KΩ
   	+24 V-COM	24 V power supply	1.Provide +24 V power supply for external units. It is generally used as the operating power supply for digital input/output terminals and the external sensor. The maximum output current is 200 mA.
   	OPEN	External power input terminal	1. Connect to 24 V by default, J14 jumper on main control board to select +24 V or COM connection. 2. When external power is used to drive DI1~DI5, HDI1, OPEN needs to connect to the external power supply and disconnect J14(disconnecting with +24 V/COM).
   Communication	485+-485-	RS-485 terminals	Standard RS-485 communication terminal, should use twisted pair cable
   Ana log input	Al1-GND	Ana log input terminal 1	1. Input Voltage range :DC 0 V to 10 V 2.  input resistance ：22 kΩ
   	Al2-GND	Ana log input terminal 2	1. Input range :DC 0 V to 10 V or 0/4 mA~20 mA, can be selected by J 5 jumper on main control board. 2.  input resistance: under voltage input-22 kΩ, Under current input-500Ω.

   Digital input	DI1-COM	Digital input 1	1. Optical coupling isolation, compatible with dual polarity input, internal resistance 3.3 kΩ; 2. Multi-function digital input, through P05.01-P05.05 to set function. 3. The inverter default +24 v power supply built-in, COM is common terminal. 4.  when using external power, JP 14 should be suspended, external +24 V connect to OPEN, COM is common terminal(external voltage range +24 V±10%. 5. internal resistance 1.65 Kω.
   	DI2-COM	Digital input 2
   	DI3-COM	Digital input 3
   	DI4-COM	Digital input 4
   	DI5-COM	Digital input 5
   	HDI1-COM	Rapid pulse input terminal	1. When used as general digit input, it is the same function as DI1 to DI5; can combine with OPEN as bipolar rapid pulse input terminal. Max input frequency is 100 kHz. 3. When use external power, input voltage range +24 V±10%; 4. The internal impedance 1.65 kΩ
   Analog output	AO1-GND	Ana log output terminal 1	0V~10V voltage and 0/4mA~20mA current output
   	AO2-GND	Ana log output terminal 2	0 V~10 V voltage 0/4 mA~20 mA current output
   Digital output	DO1-COM	Digital output 1	1. Optical coupling isolation, dual polarity open collector output 2. Output voltage range: 5V~24V 3. Output current range:2mA~50mA.
   	HDO1-COM	Rapid pulse input terminal	1. when used as general digital output, same function as DO1. 2. pull-up voltage range:5V-24V(pull-up impedance range: 0.48 kΩ~10kΩ). 3. output current range: 2 mA~50 mA
   Relay output	T1/A-T1/B	Relay T1 normally closed terminal	Contact driving capacity: AC 250V, 3 A,DC 30 V, 1A
   	T1/A-T1/C	Relay T 1 normally open terminal
   	T 2/A-T 2/C	Relay T 2 normally open terminal
   Ground	PE	Shield cable ground terminal	1. control cable shield grounding, when the interference is big on site or control cable is too long, the PE should be well grounded to reduce EMC affect. 2. PE is not allowed to connect with power N line, otherwise it can damage inverter

3. Jumper switch function description
   

   Jumper Code	Jumper wire	Function
   J3	A terminal	When jump cap plug connect to A, AO1 terminal select DC0/4mA-20mA current output
   	V terminal	When jump cap plug connect to V, AO1 terminal select DC0V-10V voltage output
   J4	A terminal	When jump cap plug connect to A, AO1 terminal select DC0/4mA-20mA current output
   	V terminal	When jump cap plug connect to V, AO1 terminal select DC0V-10V voltage output
   J5	A terminal	When jump cap plug connect to A, AI2 terminal select DC0/4mA-20mA current output
   	V terminal	When jump cap plug connect to V, AI2 terminal select DC0V-10V voltage output

   J14	24 V terminal	When jump cap plug connect to 24V, OPEN terminal connect with +24V, and HDI1, DI1~DI5 with COM short circuit input effective.
   	COM terminal	When jump cap plug connect to 24V, OPEN terminal connect with COM, and HDI1, DI1~DI5 with +24V short circuit input effective.
   J15	+5V terminal	When jump cap plug connect to +5V, terminal +5V/10V-GND on main board provide power supply +5V
   	+10V terminal	When jump cap plug connect to +10V, terminal +5V/10V-GND on main board provide power supply +10V

4. Jack connection function description
   

   Jack Code	Function	Description
   J 6	Control board-power board	J 6 is connection port of main control board and power board, power board supply power to main control board and is electric signal gateway between the 2 parts
   J 7	Control board-extension card	J 7 is connection port of extension card and main control board, main control board supply power to extension card and is electric signal gateway between the 2 parts
   LED	Control board-LED panel	This plug is connection port of main control board and LED panel, main control board supply power to LED panel and is electric signal gateway between the 2 parts
   MFI	Control board-MFI interface	This plug is connection port of main control board and MFI port, main control board supply power to MFI port and is electric signal gateway between the 2 parts

2.5.5 Tank water full and Well water dry protection:
Tips:

1. Use the signal wire connect some screw or conductor to put the sensor inside the well or tank;
2. Use the water as conductor to connect A, B or disconnect A, B to control the pump inverter ;

A, Tank water full protection

Reminder:

1. Only two ring connected by water, and that can stop the pump; when disconnect in air or only one in water, pump continue its working.
2. The distance 0.5 meter means not too close that stop the pump without water full, or not too far away that can’t connect each other even both of them inside water.
3. Yellow A and Orange B can exchange the position.

B, Well water dry protection

Reminder:

1. Only two ring disconnected from water, and that can stop the pump; when connect inside the water, pump continue its working.
2. The distance 0.5 meter means not too close that can’t stop the pump when water dry, or not too far away that pump can’t start since always disconnected.
3. Red A and Black B can exchange the position.

Important remark:
For water dry protection, after the sensor connected ready, we need set: P11.33 = 1.
For water full protection, no need parameter setting.
For the Screw or conductor, we’d better use Anti-oxidant material. otherwise, we need to change a new one in case of rusty or corrosion after few months.

Chapter 3 Function Parameters

3.1 The Basic Function Parameters
The symbols in the function code table are described as follows:
“○” means the value of this parameter can be modified in stop and running status of drive;
“◎” means the value of this parameter cannot be modified when drive is running;
“●” means this parameter is a measured value that cannot be modified;
Default: The value when restored to factory default. Neither measured parameter value nor recorded value will be restored.
Setting Range: the scope of setting and display of parameters.

SGP-SI series Solar Pumping Inverter