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Summary of Contents for Jntech JNP370LS-V1
- Page 1 Quick Installation Solar pumping inverter JNP370LS-V1 JNP550LS-V1 QI-JNP-550LS-V1-EN-V1.0...
- Page 2 The copyright belong to Supplier. This document involves the proprietary and confidential information about Solar pumping inverter of Supplier. It strictly prohibited to disclose the document by duplicating, photocopying, publishing online and in other forms without SUPPLIER’s permission. Supplier. reserves the right to change details in this publication without notice.
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Page 3: Table Of Contents
Contents 1 Inverter unpacking..............1 2 Installation procedure............2 2.1Prepare installation tools..........2 2.2 Installation Direction and spacing dimension..2 2.3 Installation of Inverter..........3 3 Electrical Connection............5 3.1 Connecting Terminals of Inverter......5 3.2 Cable Selection for Electrical Connection....6 3.3 AC Side Electrical Connection........ -
Page 4: Inverter Unpacking
1 Inverter unpacking Check according to Packing List whether all the parts are correct and in good condition or not. Accessories are shown as below: Figure 1-1 inverter and common accessories Table 1-1 description of inverter and common accessories Description Description Solar pumping inverter Packing list... -
Page 5: Installation Procedure
2 Installation procedure 2.1Prepare installation tools The following tools will be needed during inverter installation and wire connection. Table 2-1 recommended tools for inverter installation and conductor installation Sketch map Name Recommend Function specification MC4 wire M2.5~M8 Used for PV connector crimpers wire core pressure welding. -
Page 6: Installation Of Inverter
Figure 2-2 installation orientation The minimum installation spacing dimensions are shown below: Directio Minimum Minimum Direction space space Above 100cm Sides 100cm Below 100cm Front 100cm 2.3 Installation of Inverter Step 1： Drill holes in the selected installation position with 1200mm for two holes of Ф8. - Page 7 Step 2: Use hammer to make expansion bolt in the holes. Step 3: Align the lifting lug of the water pump inverter with the expansion screw, hang it, and finally tighten the expansion bolt.expansion nut. Figure 2-3 installation diagram...
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Page 8: Electrical Connection
3 Electrical Connection 3.1 Connecting Terminals of Inverter Input and output terminals is on the bottom of the inverter, including DC input and AC output terminal, RS 485 communication and water level sensor terminals, shown as below: Figure 3-1 schematic diagram of external connection of inverter Table 3-2 connection terminal marking: Terminals... -
Page 9: Cable Selection For Electrical Connection
Table 3-3 selection of DC circuit breaker: Recommended parameters of DC circuit Model breaker JNP370L 440VDC,20A JNP370LS 440VDC,20A JNP550L 440VDC,20A JNP550LS 440VDC,20A DC Breaker Notice! 1. It must be DC breaker, it’s prohibited to be replaced by AC breaker; 2. Shown as right side picture DC breaker should be 2 stages. -
Page 10: Ac Side Electrical Connection
3.3 AC Side Electrical Connection Step 1: AC connectors plug into Inverter bottom AC side terminal, tighten connectors. From AC connectors there are U,V,W wires to connect with AC pumps U,V,W wires .JNP370L and JNP550L drive the three-phase water pump, and JNP370LS and JNP550LS drive the single-phase water pump. - Page 11 structure, low cost, low noise, easy access to power, etc. Usually, single phase pump consists of a main winding (running winding), a secondary winding (starting winding), and a starting capacitor. Note: Some single phase pump consists of two capacitors, one starting capacitor and one running capacitor. In the connection of single phase pump, this two capacitors are always connected together, after that, the connection is same as one capacitor pump.
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Page 12: Capacitor Removal Example
single-phase water pump to remove, and then in the main winding and the auxiliary winding public side leads to a line, the main winding and the auxiliary winding each lead to a line, the other end to connect three wires and a ground to inverter standard accessories Ac connector, remove the capacitor schematic diagram as follows. - Page 13 Step 2: Remove 4 fixing screws from end cover plate with cross screwdriver and remove end cover plate. Step 3: After remove end cover, find the terminal connected to the capacitor lead, loosen the fastening nut and remove the original wire of capacitor and motor.
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Page 14: Dc Side Connection
Step 4: Prepare a four-core motor extension wire, fix the ground wire in the “ ” position, connect the other three wires to the three terminals and fix them with nuts. Finally, cover it. 3.4 DC side connection Danger! When carrying the out connection between PV array and inverter, the PV array should be covered with opaque materials and the DC-side circuit-breaker should be disconnected, otherwise, the PV... - Page 15 array may generate dangerous voltage, cause casualty. The Non-professionals do not make the connection operation. Step1: Please connect the wire of DC connector according to the following steps: Operation Operation instruction demonstration 1．Unscrew the fastening nuts of Connector. 2． Strip off the DC cable insulation layer to a length of approx.
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Page 16: Inverter Grounding
Step2: Plug the positive and negative connector into the corresponding terminals at the bottom of the inverter respectively. Figure 3-8 schematic diagram of inverter photovoltaic connection 3.5 Inverter grounding Make sure Inverter grounding terminals is properly connected with grounding. -
Page 17: Water Level Sensor Connection
Figure 3-9 schematic diagram of inverter grounding connection 3.6 Water Level Sensor Connection 3.6.1 Water level sensor interface define Water level sensor connector pins in inverter panel port are defined are shown below:... -
Page 18: Water Level Sensor Connection
Fig. 3-10 connection diagram of inverter water level sensor Terminal Detail （SENSOR） connector pin Dry protection pin. Overflow protection pin. Dry protection and Overflow protection common pin. 3.6.2 Water level sensor connection Two kinds of water level sensor you can select are shown below: Sensor Sensor... - Page 19 Figure 3-11 detail of water level sensor A Figure 3-10 detail of water level sensor A...
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Page 20: Disassembling
If you selected water level sensor B, then water sensor installation method is shown below: Figure 3-12 detail of water level sensor B 4 Disassembling 4.1 The Disassembling of PV Connector Please operate according to following: Operation instructions Demonstration picture DC SWITCH should be OFF before operation, and This blue ring tool shall be used to... -
Page 21: Commissioning
Step 1: Putting blue ring tool into the hole of the MC4 totally, as shown on the picture. Step 2: it will be taken apart easily. 5 Commissioning 5.1 Verify before Commissioning PV Arrays The PV array should be checked before operating the inverter, and to ensure that the positive and negative mustn’t be misconnect, otherwise, the damage may be caused to the inverter. - Page 22 Figure5-1 LED Display Table5-1 LED&Key Indicator Direction Name Color Instructions Indicator Fault light, the system can not Faulty recover the fault, (when the fault FAULT light occurs and the fault is not eliminated, the light is on). When the system is in abnormal STATE state, the light will be on, such STATE...
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Page 23: Inverter First Commission
as photovoltaic under voltage, system dry, overflow system can recover fault, and the light will be on. Running Light on under normal Green light operation. Power POWER Green Light on When power on. light Press once to stop; long time ON/OF “ON/OFF”... - Page 24 ● After inverter operate, if RUN light turn off and other indicator light turn on, means inverter have fault,detailed troubleshooting method check out in Appendix. Manual mode: ● Inverter default setting is Auto mode, if need to manual turn on off, need to operate through button. Press for over 3S, inverter turn on, press “ON/OFF”...
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Page 25: Appendix: Troubleshooting
6 Appendix: Troubleshooting Shutdown status and troubleshooting Condit Conditio Phenomen Cause Troubleshootin n Name value code Please check Inverter the input shutdown voltage from State when the Output array and make PV Array light on energy from fault sure this voltage undervolt inside inverter appeared... - Page 26 after it or down, this disappear. situation is not malfunction. Please check Inverter the input voltage from shutdown array and make when the sure this voltage fault Out put inside inverter PV array appeared energy from input voltage overvolta range. array and will Note: In cloudy...
- Page 27 Usually appears Inverter in early morning, shutdown. dusk and cloudy When days. This malfunction Weak Array output situation is aim disappear, sunshine low. inverter can to protect the restart motor of pump automatic. and lengthen the lifetime. Inverter shut down until the If this situation water level...
- Page 28 1. Power capacity of 1. Please pump motor inspect whether is higher pump motor is Inverter than rated normal. shutdown output. 2. Please Inverter and will 2. Pump inspect whether restart motor pipeline system output is in accordance automaticall locked-roto with water pump over y after the...
- Page 29 disappears. damage. range; 2. Check if pump motor damage; 3. Check if inverter hardware damage. Please check the input voltage from Inverter array and make shutdown sure this voltage Busbar and will inside inverter PV array voltage restart input voltage output range.
- Page 30 Inverter Pump Check if pump is shutdown damage damaged, if and will cause pump is okey, IPM FO restart output short then inverter fault automaticall circuit; inside hardware y after the Inverter damage if restart fault hardware failure. disappears. damage. 1.
- Page 31 Condi Condition Phenome Cause Troubleshoo tion Name value ting code 1. Please Inverter check if there shutdown, is short circuit non-recov in output wires. And if Output wire Short circuit pump is malfunctio short circuit; fault damaged. n. No inverter 2.
- Page 32 automatic hardware inverter ally damage. inside restart, hardware only if damage. recharged.
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