Sinee EM730-PV User Manual
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Sinee EM730-PV User Manual

Sinee EM730-PV User Manual

Solar pump inverter
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Solar Pump Inverter
EM730-PV
User Manual

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  • Page 1 Solar Pump Inverter EM730-PV User Manual...

  • Page 2: Part 2 Product Model

    EM730 Solar Pump Inverter User Manual V1.0 Part 1 Naming convention Part 2 Product Model Applicable motor power Rated output current Rated power supply voltage Model (kW) EM730-0R4-2B-PVO Single-phase output EM730-0R7-2B-PVO 0.75 Single-phase/three-phase AC EM730-1R5-2B-PVO 200~240V input/ EM730-2R2-2B-PVO Single-phase DC 200~400V input EM730-4R0-2B-PVO EM730-0R4-2B-PV Single-phase/three-phase AC...
  • Page 3 EM730 Solar Pump Inverter User Manual V1.0 Part 3 Product Specifications Item Specification 2B ： MPPT Range 200~400VDC; Single phase/Three phase AC 200V-10% ～ Power Rated voltage of power 240V+10%; 50/60HZ supply supply 3/3B：MPPT Range 250~900VDC; Three phase AC 340V-10%～460V+10%; 50/60HZ Maximum output voltage The maximum output voltage is the same as the input power voltage.
  • Page 4 EM730 Solar Pump Inverter User Manual V1.0 One channel (AI2): 0 to 10V input voltage or 0 to 20mA input current optional; Multi-function output of one open collector and one relay Maximum output current of the collector: 50mA; Digital output terminal Relay contact capacity: 250VAC/3A or 30VDC/1A, EA-EC: normally open;...
  • Page 5 EM730 Solar Pump Inverter User Manual V1.0 Part 4 Product size 4.1 Product appearance drawings...
  • Page 6 EM730 Solar Pump Inverter User Manual V1.0 70.6 (d) EM730-PV keyboard appearance...
  • Page 7 EM730 Solar Pump Inverter User Manual V1.0 4.2 Product size table Specifications appearance EM730-0R4-2B-PV EM730-0R7-2B-PV EM730-0R4-2B-PVO EM730-1R5-2B-PV EM730-0R7-2B-PVO EM730-1R5-2B-PVO EM730-2R2-2B-PV EM730-0R7-3B-PV EM730-1R5-3B-PV EM730-2R2-3B-PV EM730-4R0-3B-PV EM730-2R2-2B-PVO EM730-5R5-3B-PV EM730-7R5-3B-PV EM730-4R0-2B-PVO EM730-011-3B-PV EM730-015-3B-PV EM730-018-3B-PV EM730-022-3B-PV EM730-030-3-PV EM730-030-3B-PV EM730-037-3-PV EM730-037-3B-PV EM730-045-3-PV EM730-055-3-PV EM730-075-3-PV EM730-090-3-PV EM730-110-3-PV...
  • Page 8 EM730 Solar Pump Inverter User Manual V1.0 Part 5 Main circuit terminal wiring 5.1 Main circuit terminal composition Terminal Terminal Definition Braking resistor terminals DC power input terminal R/L1 S/L2 AC power input terminal T/L3 Motor terminal Grounding 5.2 Main circuit terminal arrangement (a) Schematic Diagram of Terminals (EM730-0R7-3B-PV～EM730-1R5-3B-PV) Note: EM730-0R4-2B~ EM730-0R7-2B terminals are the same as EM730-0R7-3B~ EM730-1R5-3B;...
  • Page 9 EM730 Solar Pump Inverter User Manual V1.0 (c) Schematic Diagram of Terminals (EM730-5R5-3B-PV～EM730-022-3B-PV) (with slight difference in the grounding position) (d) Schematic Diagram of Terminals (EM730-030-3/3B-PV～EM730-037-3/3B-PV) (e) Schematic Diagram of Terminals (EM730-045-3-PV～EM730-110-3-PV)
  • Page 10 EM730 Solar Pump Inverter User Manual V1.0 5.3 wiring PV input MCCB R/L1 AC power supply S/L2 Gronding T/L3 When connected to a single-phase 220V power supply, Grounding connect any two terminals among L1, L2, and L3. 24V-COM 24V output 100mA Relay output contacts High water level DC30V 10mA or more, 1A or less...
  • Page 11 EM730 Solar Pump Inverter User Manual V1.0 (b) Main circuit terminal wiring AC/DC switching...
  • Page 12 EM730 Solar Pump Inverter User Manual V1.0...

  • Page 13: Installation Site

    EM730 Solar Pump Inverter User Manual V1.0 Part 6 Product Installation Attention 1. When carrying the inverter, hold its bottom. If you hold the panel only, the body main fall to hit your feet. 2. Install the inverter on non-flammable boards (e.g. metal). If the inverter is installed on a flammable object, a fire may occur.
  • Page 14 EM730 Solar Pump Inverter User Manual V1.0 the ambient temperature below 50C. 6.3 Preventive measures Take protective measures to the inverter during installation to prevent metal fragments or dust generated in drilling and other processes from falling into the inverter. Remove the protection after installation.

  • Page 15: Keyboard Functions

    EM730 Solar Pump Inverter User Manual V1.0 Part 7 Keyboard Operation 7.1 Keyboard Functions 7.1.1 Structure of LED keyboard The control panel of EM730 series inverter is a pluggable LED keyboard The LED keyboard has one five-digit LED digital display, four operation buttons, one digital potentiometer, and six status and unit indicators.
  • Page 16 EM730 Solar Pump Inverter User Manual V1.0 It is ON when the inverter is running, (Green) Running indicator flickering when the inverter is being stopped, and OFF after the inverter is stopped. Protection When the inverter is in the protection status, (Red) indicator this indicator will be ON in red.
  • Page 17 EM730 Solar Pump Inverter User Manual V1.0 7.2.1 Full menu mode (--A--) In the full menu mode, press the ENTER key to enter the Level 2 menu and select any function code. Then press the ENTER key to enter the Level 3 menu and view or modify the function code. Except for a few special ones, the function codes needed by general users can be modified.
  • Page 18 EM730 Solar Pump Inverter User Manual V1.0 protection information function code that has been successfully modified. In the version information display mode, enter the serial number function code following the serial number function code has been successfully modified. In the Level 3 menu, press the ESC key to abandon parameter modifications.
  • Page 19 EM730 Solar Pump Inverter User Manual V1.0 In the user-defined mode, press the ENTER key to enter the Level 2 menu. The Level 2 menu only display 32 user-defined parameters in the F11 group. The user can enter the F11 group from the full menu mode to set these function codes.
  • Page 20 EM730 Solar Pump Inverter User Manual V1.0 will flicker. In this case, parameters can be modified in the Level 3 menu under the full menu mode. After modification, press the ENTER key to confirm and save the parameters and enable next non-default parameter.

  • Page 21: Operation Monitoring

    EM730 Solar Pump Inverter User Manual V1.0 When the inverter is in the protection status, you can directly press the right shift key to switch the current protection type and the output frequency, output current, output voltage, running status and working time during the protection.
  • Page 22 EM730 Solar Pump Inverter User Manual V1.0 to enable the normal monitoring mode: switch to next monitoring parameter. Fig. 7-6 shows the editing status in the monitoring mode. Flicker bit Flicker bit Flicker Flicker bit Fig. 7-6 Editing Status in the Monitoring Mode 7.5 Run/Stop After setting the parameters, press the RUN key to enable the normal operation of the inverter,...
  • Page 23 EM730 Solar Pump Inverter User Manual V1.0...

  • Page 24: Pre-Operation Check

    EM730 Solar Pump Inverter User Manual V1.0 Part 8 Debugging Guide 8.1 Pre-operation check Please make sure to check the following items before turning on the power. ① Check whether the inverter is reliably grounded; ② Check whether the wiring is correct and reliable; ③...
  • Page 25 EM730 Solar Pump Inverter User Manual V1.0 8.4 Description of single-phase asynchronous motor 8.4.1Wiring method: ① Connect the running capacitor : The output U and V phases of the inverter are connected to the phase line of the single-phase motor ②...
  • Page 26 EM730 Solar Pump Inverter User Manual V1.0 8.4.2Parameter settings: ① Connect running capacitor : Select single-phase motor as the motor type and connect running capacitor (F01.00=6). Since the running capacitor is set at 50 Hz, when the frequency is low, the secondary winding capacitive reactance is large, resulting in a small current.
  • Page 27 EM730 Solar Pump Inverter User Manual V1.0 8.5 Function parameter list The relevant function codes are as follows, which need to be used in conjunction with the complete function parameters in the EM730 User Guide. Function Factory Function code name Parameter Description unit property...
  • Page 28 EM730 Solar Pump Inverter User Manual V1.0 E14 : External fault E16 : Communication abnormality E21 : PID feedback disconnection EtSLP : Water shortage dormancy FuSLP ： Full water storage tank sleep LvSLP ： Weak light sleep drSLP ： Dry running sleep Output frequency when fault F19.01 0.00~Upper frequency limit...
  • Page 29 EM730 Solar Pump Inverter User Manual V1.0 of water When the full water level signal of the input terminal is invalid Wake-up delay (No. 97), after the delay time set by this function code, the full water alarm of the reservoir (FuSLP) is invalid and the system re-enters the running state.
  • Page 30 EM730 Solar Pump Inverter User Manual V1.0 voltage 380 V model: 750 V 220 V model: 400 V 0.00~1.00 This function code can be used to set the minimum voltage reference for maximum power tracking. Maximum Power Tracking Minimum Voltage Reference = Photovoltaic panel open circuit voltage * F51.19.
  • Page 31 EM730 Solar Pump Inverter User Manual V1.0 0~65535 m3 Pump total This function code displays the upper 16 bits of the total flow of F51.34 × flow high the pump. Unit: cubic meter. 0.0~6553.5 m3 This function code displays the lower 16 bits of the total flow of Total pump F51.35 the pump.
  • Page 32 EM730 Solar Pump Inverter User Manual V1.0 8.7 Notes ① After restoring the factory values, you need to set F51.00 to 1, 2 or 4 to use the photovoltaic water pump special function normally. ② If you want the water pump to run automatically after power failure and then power on, please set the command source F00.02 = 0 keyboard control.
  • Page 33 EM730 Solar Pump Inverter User Manual V1.0 ① Introduction to working logic In this mode, function code F51.01 is used as the given value of the PID regulator, the current input voltage is used as the feedback of the PID regulator, and the output of the PID regulator is used as the increment of the given frequency of the inverter.
  • Page 34 EM730 Solar Pump Inverter User Manual V1.0 The default parameters can basically meet most conditions. If you want to increase the response speed, you can increase Kp F51.38 appropriately. However, a larger Kp will cause a sharp drop in input voltage during the startup process, resulting in a false alarm of weak light sleep failure.
  • Page 35 EM730 Solar Pump Inverter User Manual V1.0 During the startup phase, the inverter starts running at a fixed motor rated frequency, and the input voltage decreases accordingly. When the voltage decreases by the value set by F51.17, that is, the input voltage is lower than the initial reference voltage of F51.23 PI regulation, it enters the dynamic adjustment phase.
  • Page 36 EM730 Solar Pump Inverter User Manual V1.0 frequency and photovoltaic input voltage to a certain extent . ④ F51.41 Rapidly reduce frequency During operation, it is inevitable that the photovoltaic input voltage will drop rapidly in an instant. At this time, if the PID regulator cannot respond quickly to reduce the output frequency, a weak light fault may easily occur.
  • Page 37 EM730 Solar Pump Inverter User Manual V1.0 Adjust F51.48. Taking the single-phase camera model as an example, if the photovoltaic input voltage is 400V when not running in the morning, and the voltage is about 360V after running, you can set F51.14 =280V, F51.16 = 390V.
  • Page 38 EM730 Solar Pump Inverter User Manual V1.0 If the output frequency and F51.24 PV input voltage do not change significantly, and the output frequency does not rise significantly after a period of time, please restore F51.46 to the previous setting value. ③...
  • Page 39 EM730 Solar Pump Inverter User Manual V1.0 Part 9 Protection/Warning Solutions 9.1 Protection content When the inverter is in the abnormal status, the digital tube display will show the corresponding protection code and its parameters, the protection relay and protection output terminal will work, and the inverter will stop the output.
  • Page 40 EM730 Solar Pump Inverter User Manual V1.0 1. The input power supply is subject to phase loss. 1. Check the input power supply and 2. The terminals of the input power wiring. supply are loose. 2. Tighten screws input Undervoltage 3.
  • Page 41 EM730 Solar Pump Inverter User Manual V1.0 1. The power supply fails during operation. 1. Stop the inverter before power-off, 2. The input power supply is subject to or directly reset the protection. phase loss. 2. Check the input power supply and The soft start 3.
  • Page 42 EM730 Solar Pump Inverter User Manual V1.0 1. Check whether the output cable is broken or whether the motor shell 1. The output is short-circuited to is broken down. Short circuit ground. 2. Investigate the cause and reset the to the ground 2.

  • Page 43: Part 10 Optional Accessories

    EM730 Solar Pump Inverter User Manual V1.0 Part 10 Optional accessories 10.1 Boost module 10.1.1 wiring PV+ and PV- of the boost module are connected to the positive and negative inputs of the DC ◼ power supply; +) and ( -) of the boost module are connected to the input ( +) and ( -) of the water pump ◼...
  • Page 44 EM730 Solar Pump Inverter User Manual V1.0 570V ). ② Inverter function code F52 group boost module dedicated group Function Function code Parameter Factory unit Code name Description default Whether to enable the boost 0: Disable F52.00 module 1: Enable F52.01 Reference voltage 0～690...
  • Page 45 EM730 Solar Pump Inverter User Manual V1.0 PI and do not need to be changed ; Function codes F52.04 and F52.05 are the Kp and Ki parameters of the current loop PI ◼ and do not need to be changed; Function code F52.06 is for setting the carrier frequency of the boost module.
  • Page 46 EM730 Solar Pump Inverter User Manual V1.0 Maximum input current: 22A 10.1.4 Warnings and faults Light intensity warning: When the light intensity is detected, the inverter pops up a warning, the red light of the boost module lights up, and the boost does not stop. Weak light warning: When weak light is detected, the inverter pops up a warning, the red light of the boost module turns on, and the boost does not stop.
  • Page 47 EM730 Solar Pump Inverter User Manual V1.0 10.3 GPRS module Optional GPRS module, providing WEB for remote monitoring by customers 10.4 Output reactor It can increase the effective transmission distance of the frequency converter and is suitable for long cable water pump applications...

This manual is also suitable for:

Em730-0r4-2b-pvEm730-0r7-2b-pvEm730-0r4-2b-pvoEm730-1r5-2b-pvEm730-0r7-2b-pvoEm730-1r5-2b-pvo ... Show all

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