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INVT SP100 Series User Manual
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INVT SP100 Series User Manual

INVT SP100 Series User Manual

Solar pump inverter
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Summary of Contents for INVT SP100 Series

  • Page 2 Preface Preface Overview Thank you for purchasing INVT SP100 series solar pump inverter. If not otherwise specified, the inverter mentioned in this manual refers to SP100 series solar pump inverter). This manual mainly describes the methods of mechanical installation, electrical installation, operation methods, commissioning, maintenance and troubleshooting of the SP100 series inverter.
  • Page 4 SP100 series solar pump inverter Contents Contents 1 Safety precautions ......................1 1.1 Safety declaration ......................1 1.2 Safety level definition ......................1 1.3 Personnel requirements ....................1 1.4 Safety guidelines ........................ 2 2 Product overview ......................5 2.1 Product nameplate and model ..................5 2.2 Product specifications .......................
  • Page 5 SP100 series solar pump inverter Contents 5.1.2 Display screen ......................29 5.1.3 Key ......................... 30 5.2 Operation procedure ....................... 30 5.2.1 Editing shortcut function code groups ..............30 5.2.2 Viewing and editing detailed function code groups ..........31 5.2.3 Viewing status parameters on homepage ............. 32 5.2.4 Motor parameter autotuning .................
  • Page 6 SP100 series solar pump inverter Contents 7.1 Standard communication interface ................74 7.2 Communication data address ..................74 7.2.1 Function parameter address.................. 74 7.2.2 Non-function parameter address ................75 7.3 Modbus networking ......................78 7.3.1 Network topology ....................78 7.3.2 RTU mode ......................79 7.3.3 RTU command code ....................
  • Page 7 SP100 series solar pump inverter Contents Appendix D Peripheral accessories ................111 D.1 Cable ..........................111 D.1.1 Power cable ......................111 D.1.2 Control cable ....................... 113 D.2 Breaker and electromagnetic contactor ............... 113 D.3 IoT module ........................114 D.3.1 Product overview....................114 D.3.2 Downloading the monitoring platform ...............
  • Page 8 SP100 series solar pump inverter Safety precautions 1 Safety precautions 1.1 Safety declaration Read this manual carefully and follow all safety precautions before moving, installing, operating and servicing the active power filter. Otherwise, equipment damage or physical injury or death may be caused.
  • Page 9 SP100 series solar pump inverter Safety precautions 1.4 Safety guidelines General principles Only trained and qualified professionals are allowed to carry out related  operations. Do not perform wiring, inspection or component replacement when power  supply is applied. Before performing these operations, ensure all the input power supplies have been disconnected, and wait for at least the time designated on the inverter or until the DC bus voltage is less than 36V.
  • Page 10 SP100 series solar pump inverter Safety precautions Installation The installation site must be away from children and other public places (See  section 3.2.1 Installation environment and site for details). As inverter leakage current caused during running may exceed 3.5mA, apply ...
  • Page 11 SP100 series solar pump inverter Safety precautions of the inverter is lower than 36V.  After the synchronous motor has stopped, wait for at least the time designated on the inverter, and ensure the voltage between (+) and (-) is lower than 36V.
  • Page 12 SP100 series solar pump inverter Product overview 2 Product overview 2.1 Product nameplate and model Each inverter is affixed with a nameplate containing the basic product information and, depending on the actual certification, certification marks such as the CE mark.
  • Page 13 SP100 series solar pump inverter Product overview Item Specifications PV max. input See section section 2.3 Product ratings. current (A) 2, 4, 2-T, 4-T AC models: 50Hz or 60Hz; Allowed range: Input frequency (Hz) 47 – 63Hz, with a maximum change rate of 20%/s...
  • Page 14 SP100 series solar pump inverter Product overview Item Specifications Digital input Three regular inputs; max. frequency: 1kHz One programmable relay output. Relay output RO1A: NO; RO1B: NC; RO1C: common Contact capacity: 3A/AC 250V, 1A/DC 30V Installation method Only supports wall mounting -10–+60°C...
  • Page 15 SP100 series solar pump inverter Product overview Output AC input current PV max. input Product model Output current (A) power (kW) current (A) SP100-7R5-D4-6-S 18.5 SP100-011-D4-6-S SP100-015-D4-6-S SP100-018-D4-6-S 18.5 SP100-022-D4-6-S D2: DC 150V – 450V SP100-2R2-D2-6-S 2.4 Product dimensions and weight...
  • Page 16 SP100 series solar pump inverter Product overview Outline Packaging outline Gross Product Standard Product model dimensions dimensions weight frame weight (kg) W × H × D (mm) W × H × D (mm) (kg) SP100-011-D4-6-S SP100-015-D4-6-S SP100-018-D4-6-S SP100-0R7-2-T-6-S SP100-1R5-2-T-6-S SP100-2R2-2-T-6-S 298 ×...
  • Page 17 SP100 series solar pump inverter Product overview Entire machine Entire machine Heat Air rate Air rate Product model full load power standby power dissipation (CFM) (m^3/h) dissipation (W) dissipation (W) (BTU/hr) (ft^3/min) 2: AC 3PH/1PH 220(-15%) – 240(+10%), DC 150V – 450V SP100-2R2-2-6-S D4: DC 250V –...
  • Page 18 SP100 series solar pump inverter Product overview Table 2-2 Product component description Component Description Fuse board Used to contain the circuit fuses to protect the solar components. Keypad board See section 5.2 Operation procedure. Upper cover Used to protect internal components.
  • Page 19 SP100 series solar pump inverter Product overview Table 2-3 System configuration Component Position value Description Device for electric shock prevention and protection against short-to-ground that may cause current Between the AC leakage and fire. Select residual-current circuit power supply and...
  • Page 20 SP100 series solar pump inverter Product overview 2.8 Quick startup Task Reference 1. Unpacking inspection See section 3.1 Unpacking inspection. Check that the load and power supply See section 2.1 Product nameplate and model. connected to the inverter are proper.
  • Page 21 DC bus voltage is below 36V. The inverter installation must be designed and done according to applicable  local laws and regulations. INVT does not assume any liability whatsoever for any inverter installation which breaches local laws or regulations. 202501 (V1.1)
  • Page 22 SP100 series solar pump inverter Mechanical installation 3.2.1 Installation environment and site Environment requirements  Environment Requirement -10°C–+60°C  Do not use the inverter when the ambient temperature exceeds  60°C. When the ambient temperature exceeds 45°C, derate 1% for every increase of 1°C.
  • Page 23 SP100 series solar pump inverter Mechanical installation Figure 3-1 Mounting direction Vertical Horizontal Transerse installation installation installation 3.2.3 Installation space Figure 3-2 Installation space diagram of single inverter Hot air Cold air Table 3-1 Installation space dimensions of single inverter...
  • Page 24 SP100 series solar pump inverter Mechanical installation 3.3 Mounting method SP100 series inverter only supports wall mounting, and the procedures of wall mounting are as follows. Step 1 Mark the installation hole positions. Step 2 Mount the screws or bolts onto the For details about the installation hole designated positions.
  • Page 25 SP100 series solar pump inverter Electrical installation 4 Electrical installation 4.1 Insulation inspection Do not perform any voltage endurance or insulation resistance tests, such as high-voltage insulation tests or using a megameter to measure the insulation resistance, on the inverter or its components. Insulation and voltage endurance tests have been performed between the main circuit and chassis of each inverter before delivery.
  • Page 26 SP100 series solar pump inverter Electrical installation Control cable  Control cables mainly include analog signal control cables and digital signal control cables. Analog signal control cables use twisted double shielded cables with a separate shielded twisted pair for each signal and different ground wires for different analog signals.
  • Page 27 SP100 series solar pump inverter Electrical installation Note: The dashed box shows the AC interfaces, which is only available on models that  support AC input. The fuse, input reactor, input filter, output reactor, and output filter are optional ...
  • Page 28 SP100 series solar pump inverter Electrical installation Figure 4-3 External interface 1 PV+ INPUT PV- INPUT PE U V W Figure 4-4 External interface 2 PV+ INPUT PV- INPUT PE U V W 202501 (V1.1)
  • Page 29 SP100 series solar pump inverter Electrical installation Figure 4-5 External interface 3 INPUT INPUT Figure 4-6 External interface 4 PV+ INPUT PV- INPUT L1 L2 L3 PE PE U 202501 (V1.1)
  • Page 30 SP100 series solar pump inverter Electrical installation Figure 4-7 External interface 5 PV+ INPUT PV- INPUT L1 L2 L3 PE PE U Figure 4-8 External interface 6 PV+ INPUT PV- INPUT L2 L3 202501 (V1.1)
  • Page 31 SP100 series solar pump inverter Electrical installation Figure 4-9 External interface 7 PV+ INPUT PV- INPUT L1 L2 L3 PE PE U Table 4-1 Terminal dimensions Figure a Figure b 5.00 3.00 PE U PE U Figure c Figure d 8.25...
  • Page 32 SP100 series solar pump inverter Electrical installation Table 4-2 Drive board main circuit terminal description Terminal Terminal name Function description symbol DC model (-D) AC model Main circuit L1, L2, L3 Not available AC input terminals, connected to the grid.
  • Page 33 SP100 series solar pump inverter Electrical installation 4.4 Control circuit wiring 4.4.1 Control circuit wiring diagram Figure 4-10 Control circuit wiring Shielding layer 485+ RS485 communication Twisted 485- pair Digital input 2 SP100 Digital input 3 Shielding layer 4.4.2 Control circuit terminals...
  • Page 34 SP100 series solar pump inverter Electrical installation Terminal Description name 485- Standard RS485 communication port must use shielded twisted pairs. 5V power ground 4.4.3 Input signal connection diagram 4.4.3.1 Input signal connection diagram Figure 4-12 NPN mode Internal power supply 4.5 Power distribution protection...
  • Page 35 SP100 series solar pump inverter Electrical installation Figure 4-13 Fuse configuration Inverter Input cable M3 ~ Fuse Note: Select the fuse according to section D.2 Breaker and electromagnetic contactor. Motor and motor cable short-circuit protection  If the motor cable is selected based on inverter rated current, the inverter is able to protect the motor cable and motor without other protective devices during short circuit.
  • Page 36 SP100 series solar pump inverter Keypad operation guidelines 5 Keypad operation guidelines 5.1 Keypad panel display The inverter has been equipped with a LCD keypad as a standard configuration part, through which various functions can be realized, such as: controlling the start and stop, reading status data, setting parameters of the inverter.
  • Page 37 SP100 series solar pump inverter Keypad operation guidelines 5.1.3 Key Function Menu/ Exit Press it to enter or exit level-1 menus or delete a parameter. Press it to enter menus in cascading mode or confirm the setting of Confirmation/ a parameter. Alternatively, press it to select digits to change during Shifting key parameter setting, and press and hold to move the cursor left.
  • Page 38 SP100 series solar pump inverter Keypad operation guidelines Step 1 On the homepage in the stop state, Step 2 Press the key to select the press the key to enter the function code group to be set, and shortcut function code group page.
  • Page 39 SP100 series solar pump inverter Keypad operation guidelines Step 5 Press and hold the key to shift Step 6 Press the key to confirm the modification, return to the previous the cursor, and press the menu, and go to next function code key to change the function code automatically.
  • Page 40 SP100 series solar pump inverter Keypad operation guidelines Step 5 Set the motor parameter function Step 6 Set P00.15 to 2, and press the code according to the motor key to confirm the setting. nameplate. Set P02.01 – P02.05 for AMs...
  • Page 41 SP100 series solar pump inverter Commissioning 6 Commissioning The simplified commissioning flowchart is as follows. Start Restore to default settings (P00.18=1) Turn off MPPT (P15.00=0) Select the motor type (P02.00) P02.00=1 (SM) P02.00=0 (AM) Set motor parameters Set motor parameters P02.01–P02.05 according to...
  • Page 42 SP100 series solar pump inverter Commissioning 6.1 Motor parameter setting The product supports the control of three-phase AC asynchronous motors and permanent magnet synchronous motors. The parameters in group P02 are the motor parameters. 6.1.1 Motor type selection Select the motor type by setting P02.00.
  • Page 43 SP100 series solar pump inverter Commissioning Function Setting Name Description Default code range frequency. Number of pole pairs of P02.17 1 – 128 1 – 128 SM 1 Model P02.18 Rated voltage of SM 1 0 – 1200V 0 – 1200...
  • Page 44 SP100 series solar pump inverter Commissioning Motor autotuning can be carried out on the present motor only. If you need to  perform autotuning on the other motor, switch the motor first. Table 6-1 Obtained motor parameters in different autotuning methods...
  • Page 45 SP100 series solar pump inverter Commissioning One-click running function The local LCD keypad has the highest priority and is not limited by P00.01. In the stopped state, press the RUN/STOP key, and the inverter will start running with the RUN indicator light on.
  • Page 46 SP100 series solar pump inverter Commissioning Function Setting Name Description Default code range Specifies the frequency command source. Setting channel of 0: Keypad P00.06 A frequency 0 – 8 1: AI1 command 2 – 7: Reserved 8: Modbus communication 6.4.1.1 Frequency set through keypad When P00.06 is set to 0, keypad digital functions as the setting channel, and P00.10...
  • Page 47 SP100 series solar pump inverter Commissioning Note: The SM in this mode is applicable to large-power low frequency running rather than ultra-high speed running. SVC mode 1: P00.00=1 It is applicable to the scenarios where mediocre control accuracy and response speed are enough.
  • Page 48 SP100 series solar pump inverter Commissioning Note: In the figure, V indicates the motor rated voltage and f indicates the motor rated frequency. Function Setting Name Description Default code range 0: Straight-line V/F curve (applicable to constant torque loads) V/F curve 1: Multi-point V/F curve P04.00...
  • Page 49 SP100 series solar pump inverter Commissioning Function Setting Name Description Default code range The cut-off frequency of manual torque Torque boost boost is a percentage of the rated motor cut-off frequency f . Torque boost can improve P04.02 0.0 – 50.0 20.0%...
  • Page 50 SP100 series solar pump inverter Commissioning Function Setting Name Description Default code range High-frequency oscillation P04.11 0 – 100 control factor of motor 1 Oscillation control 0.00 – P00. P04.12 30.00Hz threshold of motor 1 6.7.1.5 Speed loop The following uses motor 1 for example.
  • Page 51 SP100 series solar pump inverter Commissioning Function Setting Name Description Default code range Speed-loop frequency is less than P03.02, the speed 0.000 – 10. P03.01 0.200s integral time 1 regulator PI parameters are P03.00 and P03.01. When the running frequency is Low-point 0.00 –...
  • Page 52 SP100 series solar pump inverter Commissioning therefore you need to increase the current-loop parameter values in scenarios such as with current divergence and motor stalling. If the SM sounds abnormally during running, in addition to decreasing the  speed-loop parameters, decrease current-loop PI parameters. Generally, small motor straight axis and cross axis inductance requires great current-loop PI parameter values.
  • Page 53 SP100 series solar pump inverter Commissioning Setting Function Description Reserved Jog forward For details about frequency of jogging running and ACC/DEC time of jogging running, see the description for Jog reversely P08.06, P08.07, and P08.08. The inverter blocks output, and the stop process of motor is uncontrolled by the inverter.
  • Page 54 SP100 series solar pump inverter Commissioning Setting Function Description When the function is enabled, it indicates that the water Empty-water signal level sensor is providing a empty-water signal feedback. Reserved This function is generally used with the QH100 automatic PV digital input switching module.
  • Page 55 SP100 series solar pump inverter Commissioning 6.8.1.2 Digital output The inverter carries one group of relay output terminals. All the digital output terminal functions can be specified by function codes. P17.13 Digital output terminal status Fault？ P07.40 P06.05 Output Digital switch-on...
  • Page 56 SP100 series solar pump inverter Commissioning Setting Function Description DC bus voltage When the bus voltage is above the inverter undervoltage, established the output is valid. When the PV voltage is lower than the PV undervoltage Weak-light pre-alarm point, the output is valid.
  • Page 57 SP100 series solar pump inverter Commissioning Function Setting Name Description Default code range delay programmable output terminals switch on or switch off. Y electric level Y valid Invalid invalid Valid Switch-on Switch-off delay delay Output 0x0000 – P07.40 terminal status Setting range: 0x0000 –...
  • Page 58 SP100 series solar pump inverter Commissioning Function Setting Name Description Default code range 4: 19200 bps 5: 38400 bps 6: 57600 bps Note: The baud rate set on the inverter must be consistent with that on the host controller. Otherwise the communication fails.
  • Page 59 SP100 series solar pump inverter Commissioning Function Setting Name Description Default code range "Modbus/Modbus TCP communication fault" (CE) if the communication interval exceeds the value. In general, the function code is set to 0.0. When continuous communication is required, you can set the function code to monitor communication status.
  • Page 60 SP100 series solar pump inverter Commissioning Category Type Monitored content Status viewing Group functions special MPPT control parameters and pump state for solar pump Group P07 –– Human-machine interface (HMI) Function Name Description Default Modify code By default, the user password is not enabled (the default value is 0).
  • Page 61 SP100 series solar pump inverter Commissioning Function Name Description Default Modify code The function code is used to set the sequence of switching running-command Sequence of channels by pressing the key when switching P07.02=6. P07.03 running-comma Setting range: 0 – 3 ○...
  • Page 62 SP100 series solar pump inverter Commissioning Function Name Description Default Modify code Factory bar Model P07.25 Setting range: 0x0000 – 0xFFFF ● code 3 depended Factory bar Model P07.26 Setting range: 0x0000 – 0xFFFF ● code 4 depended Present fault Setting range: 0 –...
  • Page 63 SP100 series solar pump inverter Commissioning Function Name Description Default Modify code 96: No upgrade bootload (E96) 536: Hydraulic probe damage (E536) 576: Lightning strike fault (E576) 9020: Weak-light alarm (A9020) 9021: Dry pumping alarm (A9021) 9022: Full-water alarm (A9022)
  • Page 64 SP100 series solar pump inverter Commissioning Function Name Description Default Modify code at last fault Output current P07.44 Setting range: 0.0 – 6300.0A 0.0A ● at last fault Bus voltage at P07.45 Setting range: 0.0 – 2000.0V 0.0V ● last fault Temperature at P07.46...
  • Page 65 SP100 series solar pump inverter Commissioning Function Name Description Default Modify code 8th-last fault P07.59 ● type 9th-last fault P07.60 ● type 10th-last fault P07.61 ● type 11th-last fault P07.62 ● type 12th-last fault P07.63 ● type 13th-last fault P07.64 ●...
  • Page 66 SP100 series solar pump inverter Commissioning Function Name Description Default Modify code Displays the present ramp reference Ramp reference frequency of the inverter. P17.02 0.00Hz ● frequency Setting range: 0.00Hz – P00.03 Displays the present output voltage of the P17.03 Output voltage inverter.
  • Page 67 SP100 series solar pump inverter Commissioning Function Name Description Default Modify code Displays the present digital output terminal state of the inverter. Digital output P17.13 Setting range: 0x0 – 0xF ● terminal status Corresponds to RO2, RO1, HDO and Y1...
  • Page 68 SP100 series solar pump inverter Commissioning Output current(I) Current-limit threshold Output Time(t) frequency(f) Set frequency Constant speed Acceleration Time(t) Function Setting Name Description Default code range During accelerated running, as the load is too large, the actual acceleration rate of motor is lower than that of output frequency.
  • Page 69 SP100 series solar pump inverter Commissioning kept at the action determination voltage for frequency decrease at sudden power failure, preventing the inverter from stop due to undervoltage. Restoration voltage threshold voltage for sudden power off Action voltage threshold for sudden power off...
  • Page 70 SP100 series solar pump inverter Commissioning When the weak-light pre-alarm is detected, the pre-alarm will be automatically canceled after P15.24. Function Name Description Default code When the output frequency is less than or equal to the PI output frequency lower limit...
  • Page 71 SP100 series solar pump inverter Commissioning The empty-water protection function is mainly used for the water source or well. When the water level is lower than the low water level warning line, after P15.16, the solar pump will report the empty-water pre-alarm and decelerate to stop.
  • Page 72 SP100 series solar pump inverter Commissioning Function Name Description Default code full-water signal. Setting range: 0 – 10000s Time setting on empty-water level delay. Empty-water level This parameter is still valid for digital P15.16 delay empty-water signal. Setting range: 0 – 10000s...
  • Page 73 1: Determined based on output current 6.12.4 Automatic switching SP100 series AC/DC models with BOOST modules support simultaneous AC/DC access, and the AC/DC automatic switching function can be realized by setting P15.32=0. When the mains power and solar panel are connected at the same time and the PV voltage exceeds P15.34, and the system switches to the PV mode after P15.24.
  • Page 74 SP100 series solar pump inverter Commissioning Function Name Description Default code condition, the system automatically switch to the power-frequency input mode. If the PV voltage is greater than the PV startup voltage (P19.08) under weak-light alarm, the system clears the alarm with the weak-light wake-up delay and then re-enters the running state.
  • Page 75 Setting range: P15.33 – 400.0V (0.0: invalid) 6.12.5 Hybrid power supply function SP100 series AC/DC models without BOOST modules support simultaneous AC/DC access for hybrid power supply. First, set the panel configuration Vmp value to a value that exceeds the standard bus voltage, and then set P15.32=1 to achieve the hybrid power supply function.
  • Page 76 SP100 series solar pump inverter Commissioning Function Name Description Default code frequency input power frequency according to the detected PV voltage value and switching threshold. If the mains power is not connected successfully, the keypad displays a phase loss alarm (A-SPI).
  • Page 77 SP100 series solar pump inverter Commissioning It should be noted that when the solar pump is only connected with the solar panel, the setting of P00.10 for the fifth time should be set according to the light intensity at that time.
  • Page 78 SP100 series solar pump inverter Commissioning Function Name Description Default code point 5 power of water pump is at the fifth point of PQ curve. Setting range: 0.0 – 1000.0kW Corresponding flow point when the flow of PQ curve flow P15.46...
  • Page 79 SP100 series solar pump inverter Commissioning Frequency Rated frequency P15.53 P15.54 Time Functi Name Description Default code P15.52 Local time 0.00 – 23.59 0.00 P15.53 Timing startup time 0.00 – P15.54 0.00 P15.54 Timing stop time P15.53 – 23.59 0.00 6.12.8 Single-phase motor function...
  • Page 80 SP100 series solar pump inverter Commissioning The internal wiring diagram of single-phase motor winding is as follows after removing the starting capacitor and operating capacitor: Two-phase control wiring shall strictly align with UVW, and common methods for determining main and auxiliary windings are as follows: Use a multimeter to measure the resistance value between two windings.
  • Page 81 SP100 series solar pump inverter Communication 7 Communication 7.1 Standard communication interface The inverter provides RS485 communication as a standard function. The following table lists the communication interfaces and terminals. Table 7-1 Standard communication terminals Network Signal Interface Description signal...
  • Page 82 SP100 series solar pump inverter Communication can set the address to 8007H. The address can be used only for writing data to the on-chip RAM, and it is invalid when used for reading data. 7.2.2 Non-function parameter address In addition to modifying the parameters of the inverter, the master can also control the inverter, such as starting and stopping it, and monitoring the operation status of the inverter.
  • Page 83 SP100 series solar pump inverter Communication Parameter Address Description Bit12 – bit15: Autotuning completed User password state 2109H User password 0: No prompt Prompt page 210AH 1: -FAF- (Forced AC mode Failed) Running frequency 3000H 0 – Fmax (Unit: 0.01Hz)
  • Page 84 SP100 series solar pump inverter Communication Parameter Address Description Torque setting (-3000 – 3000, in which 1000 corresponds to 2004H 100.0% of the motor rated current) Upper limit setting of forward running frequency (0 – Fmax; 2005H unit: 0.01Hz) Upper limit setting of reverse running frequency (0 – Fmax;...
  • Page 85 SP100 series solar pump inverter Communication The following table describes the encoding rules of device codes (corresponding to the identification code 2103H of the inverter). 8 MSBs Meaning 8 LSBs Meaning 0x01 Goodrive 0x94 SP100 series solar pump inverter 7.3 Modbus networking...
  • Page 86 SP100 series solar pump inverter Communication Figure 7-3 shows the star connection. When this connection mode is adopted, the two devices that are farthest away from each other on the line must be connected with a terminal resistor (the two devices are devices #1 and #15).
  • Page 87 SP100 series solar pump inverter Communication The information of a frame must be transmitted in a continuous data flow. If there is an interval greater than the transmission time of 1.5 bytes before the transmission of the entire frame is complete, the receiving device deletes the incomplete information, and mistakes the subsequent byte for the address domain of a new frame.
  • Page 88 SP100 series solar pump inverter Communication Definition of even check: Before the data is transmitted, an even check bit is added to indicate whether the number of "1" in the to-be-transmitted data is odd or even. If it is even, the check bit is set to "0, and if it is odd, the check bit is set to "1".
  • Page 89 SP100 series solar pump inverter Communication data_length ） int i; unsigned int crc_value=0xffff; while （ data_length-- ） crc_value^=*data_value++; for （ i=0;i<8;i++ ） if （ crc_value&0x0001 ） crc_value= （ crc_value>>1 ） ^0xa001; else crc_value=crc_value>>1; return （ crc_value ） ; In the ladder logic, CKSM uses the table look-up method to calculate the CRC value according to the content in the frame.
  • Page 90 SP100 series solar pump inverter Communication CMD (command code) Start address MSB Start address LSB Data count MSB Data count LSB CRC LSB CRC MSB T1-T2-T3-T4 (transmission time of 3.5 bytes) "T1-T2-T3-T4 (transmission time of 3.5 bytes)" in "START" and "END" indicates that the RS485 communication needs to be idle for at least the transmission time of 3.5 bytes.
  • Page 91 SP100 series solar pump inverter Communication 01H. "ADDR" occupies one byte. "CMD" is "03H", indicating that the message is an inverter response to the 03H command from the master for reading data. "CMD" occupies one byte. "Number of bytes" indicates the number of bytes between the byte (not included) and the CRC byte (not included).
  • Page 92 SP100 series solar pump inverter Communication CRC MSB T1-T2-T3-T4 (transmission time of 3.5 bytes) 7.3.3.3 Command code 10H, continuous writing The command code 10H is used by the master to write data to the inverter. The quantity of data to be written is determined by "Data quantity", and a maximum of 16 pieces of data can be written.
  • Page 93 SP100 series solar pump inverter Communication 7.3.4 Fieldbus scale In practical applications, communication data is represented in the hexadecimal form, but hexadecimal values cannot represent decimals. You can multiply a non-integer by a multiple to obtain an integer, in which the multiple is considered as a fieldbus scale.
  • Page 94 SP100 series solar pump inverter Communication Code Name Meaning address computer is not allowed. In particular, the combination of the register address and the number of the to-be-sent bytes is invalid. The received data domain contains a value that is not allowed.
  • Page 95 SP100 series solar pump inverter Communication 7.3.6 Communication commissioning In the following example, a PC is used as the master, an RS232-RS485 converter is used for signal conversion, and the PC serial port used by the converter is COM1 (an RS232 port).
  • Page 96 SP100 series solar pump inverter Communication Click Send. If the line configuration and settings are correct, a response transmitted  from the inverter is received. 20 00 00 01 42 28 Inverter Parameter Forward Write address address running command 202501 (V1.1)
  • Page 97 8.2 Faults and solutions When a fault occurred, handle the fault as follows: Step 1 Check whether the keypad display is improper. If yes, contact the local INVT office. Step 2 If no, check the function codes in P07 group to determine the real state when the fault occurred.
  • Page 98 SP100 series solar pump inverter Fault handling 8.2.1 Common faults and solutions New fault Old fault Fault type Possible cause Solution code code Inverter unit ACC/DEC is too fast.  Increase ACC/DEC time.  OUt1 U-phase IGBT module is ...
  • Page 99 SP100 series solar pump inverter Fault handling New fault Old fault Fault type Possible cause Solution code code Overvoltage Load energy  during constant regeneration is too speed running large. DC bus Grid voltage is too  Check the grid input power.
  • Page 100 SP100 series solar pump inverter Fault handling New fault Old fault Fault type Possible cause Solution code code running. power. The terminal is set to  Check the terminal settings  external fault function External fault and the closure of external and the function is switches.
  • Page 101 SP100 series solar pump inverter Fault handling New fault Old fault Fault type Possible cause Solution code code operation fault writing control reset. parameters Replace the main control  EEPROM is damaged. board.  PID feedback is  Check PID feedback signal ...
  • Page 102 SP100 series solar pump inverter Fault handling New fault Old fault Fault type Possible cause Solution code code Hydraulic probe Hydraulic probe is Check the hydraulic probe   E536 is damaged. damaged. feedback signal. Lightning strike E576 Lightning strike Contact the manufacturer.
  • Page 103 SP100 series solar pump inverter Fault handling 8.3 Analysis on common faults 8.3.1 Weak-light pre-alarm Weak-light pre-alarm Weak Check the solar light condition. Normal Whether the output frequency reaches the lower frequency limit? The frequency lower limit may be set too high.
  • Page 104 SP100 series solar pump inverter Fault handling 8.3.3 Inverter overheating Inverter overheating Reduce the load Is the load too and increase the heavy or the capacity of capacity of the the inverter is too small? inverter Add a cooling Is the ambient temperature...
  • Page 105 SP100 series solar pump inverter Fault handling Symptom Solution degrees higher than Try to add a safety capacitor of 0.1 μ F to the signal end of  common temperature the feedback signal terminal of the sensor. (usually occurring Try to add a safety capacitor of 0.1 μ F to the power end of ...
  • Page 106 SP100 series solar pump inverter Fault handling Symptom Solution HMI, and touch screen). It is recommended that you connect the inverter and motor to the power ground, and connect the host controller separately to a ground stud. Try to short the signal reference ground terminal (GND) of ...
  • Page 107 SP100 series solar pump inverter Fault handling Note: If the controller (such as PLC) in the system controls more than 5 inverters at the same time through digital input terminals (S), this scheme is not applicable. 8.4.4 Leakage current and interference on RCD Working principle ...
  • Page 108 SP100 series solar pump inverter Fault handling Symptom Solution Solution to mal-operation of RCD (on the part of system  distribution)  Check and ensure that the power cable is not soaking in water.  Check and ensure that cables are not damaged or spliced.
  • Page 109 SP100 series solar pump inverter Inspection and maintenance 9 Inspection and maintenance 9.1 Daily inspection and regular maintenance The inverter internal components will become aging due to the influence of environmental temperature, humidity, dust, vibration and other factors, which causes the potential failure or shortens the service life.
  • Page 110 Visual inspection outlets For more details about maintenance, contact the local INVT office, or visit our website www.invt.com, and choose Support > Services. 9.2 Replacement of wearing parts The wearing parts of inverter mainly include the cooling fan and electrolytic capacitor, of which the service life is closely related to the running environment and maintenance condition.
  • Page 111 SP100 series solar pump inverter Inspection and maintenance Cooling fan replacement procedure  Disassembling a fan (for models using air cooling) Step 1 Press the snap of the plastic fan Step 2 Lift the fan upward, and remove the fan cover gently to remove the fan connection terminal.
  • Page 112 SP100 series solar pump inverter Inspection and maintenance Note: Before disassembling or installing the inverter, stop the inverter, cut off the power,  and wait at least 15 minutes. Different inverter models may be slightly different in the fan quantity and position.
  • Page 113 SP100 series solar pump inverter Inspection and maintenance inverter, and either a DC or AC voltage controlled power supply can be selected. When using a DC voltage controlled power supply, for inverters with an input voltage of 450VDC, you can use a 400V DC source; for inverters with an input voltage of 900V, you can use an 800V DC source.
  • Page 114 SP100 series solar pump inverter Derating Appendix A Derating If the ambient temperature at the inverter installation site exceeds 45 ° C, the inverter installation site altitude exceeds 1000m, a cover with heat dissipation vents is used, or the carrier frequency is higher than the recommended (see P00.14), the inverter needs to be derated.
  • Page 115 SP100 series solar pump inverter Application standards Appendix B Application standards B.1 List of application standards The following table describes the application standards that inverters comply with. Adjustable speed electrical power drive system. Part 3: EMC IEC/EN 61800-3 requirements and specific test methods Adjustable speed electrical power drive systems.
  • Page 116 SP100 series solar pump inverter Application standards Note: Inverters of category C3 cannot be applied to civilian low-voltage public grids. When applied to such grids, the inverter may generate radio frequency electromagnetic interference. Category C4: Inverter of rated voltage higher than 1000 V, or rated current higher or equal to 400 A, applied to complex systems in the second environment.
  • Page 117 SP100 series solar pump inverter Dimension drawings Appendix C Dimension drawings Figure C-1 Mounting dimensions diagram Table C-1 Dimensions and mounting hole size (unit: mm) Outline dimensions Mounting hole distance Hole Frame diameter 232.5 ø 7 ø 7 ø 8 ø7...
  • Page 118 SP100 series solar pump inverter Peripheral accessories Appendix D Peripheral accessories D.1 Cable Cables mainly include power cables and control cables. For the selection of cable types, see the following table. Double-shielded Single-shielded Symmetrical Four-core Cable type twisted-pair twisted-pair shielded cable...
  • Page 119 SP100 series solar pump inverter Peripheral accessories Recommended cable size (mm Inverter model R, S, T PV+ (per group) PV- (per group) U, V, W SP100-015-D4-6-S SP100-018-D4-6-S SP100-022-D4-6-S SP100-0R7-2-T-6-S SP100-1R5-2-T-6-S SP100-2R2-2-T-6-S SP100-2R2-4-T-6-S SP100-004-4-T-6-S SP100-2R2-2-6-S SP100-2R2-4-6-S SP100-004-4-6-S SP100-5R5-4-6-S SP100-7R5-4-6-S SP100-011-4-6-S SP100-015-4-6-S...
  • Page 120 SP100 series solar pump inverter Peripheral accessories D.1.2 Control cable Control cables mainly include analog signal control cables and digital signal control cables. Analog signal control cables use twisted double shielded cables (Figure a), with a separate shielded twisted pair for each signal and different ground wires for different analog signals.
  • Page 121 It is recommended to scan the following QR code with your mobile browser to download the App, or you can log in to the web version (iot.invt.com) for data monitoring. Note: The QR code includes both Android and iOS versions.
  • Page 122 SP100 series solar pump inverter Peripheral accessories Note: For the 4G version (ICA400-06) data transmission terminal, the installation of a SIM  card is required first. Insert or remove the data transmission terminal, only when the power is off. ...
  • Page 123 SP100 series solar pump inverter Peripheral accessories If the base station signal is strong, in normal running, the data transmission terminal indicators work as follows: After power-on, COM and SER start flashing slowly, indicating that the data transmission terminal performs initialization.
  • Page 124 SP100 series solar pump inverter Peripheral accessories indicator indicator indicator Fault Fault cause Solution description transmission card been terminal and inserted properly. base station 1. Loose connection 1. Check the connector between the data and re-plug. transmission 2. Ensure that...
  • Page 125 SP100 series solar pump inverter Peripheral accessories Table D-2 Reactor model selection Inverter model Input reactor Output reactor SP100-2R2-D2-6-S GDL-OCL0010-4CU SP100-2R2-D4-6-S GDL-OCL0006-4CU SP100-004-D4-6-S GDL-OCL0010-4CU SP100-5R5-D4-6-S GDL-OCL0014-4CU SP100-7R5-D4-6-S GDL-OCL0020-4CU SP100-011-D4-6-S GDL-OCL0025-4CU SP100-015-D4-6-S GDL-OCL0035-4AL SP100-018-D4-6-S GDL-OCL0040-4AL SP100-022-D4-6-S GDL-OCL0050-4AL SP100-0R7-2-T-6-S GDL-ACL0005-4CU GDL-OCL0005-4CU SP100-1R5-2-T-6-S...
  • Page 126 SP100 series solar pump inverter Peripheral accessories D.4.2 Filter Table D-3 Filter model selection Inverter model Input filter Output filter SP100-2R2-D2-6-S FLT-L04016L-B SP100-2R2-D4-6-S FLT-L04006L-B SP100-004-D4-6-S FLT-L04016L-B SP100-5R5-D4-6-S SP100-7R5-D4-6-S FLT-L04032L-B SP100-011-D4-6-S SP100-015-D4-6-S FLT-L04045L-B SP100-018-D4-6-S SP100-022-D4-6-S FLT-L04065L-B SP100-0R7-2-T-6-S FLT-P04006L-B FLT-L04006L-B SP100-1R5-2-T-6-S FLT-P04016L-B...
  • Page 127 SP100 series solar pump inverter Peripheral accessories D.4.3 Anti-thief plate D.4.3.1 Assembly procedure Step 1 Mount the security plate to the wall with expansion screws. M6 welding screws 3-M6 fixing screws Step 2 Attach the machine (welding screw) to the security plate with screws on the plate.
  • Page 128 SP100 series solar pump inverter Peripheral accessories D.4.3.2 Dimensions Table D-4 Anti-thief plate Product Anti-thief plate Dimension drawings (Unit: mm) model frame 2-M6 welding stud 61.5 PAE-A1 2-M6 clinch nut 236.0 2-M6 welding stud 61.5 202.0 45.0 3-Ø7.5 60.0 76.0 PAE-A2 90.0...
  • Page 129 SP100 series solar pump inverter Peripheral accessories Product Anti-thief plate Dimension drawings (Unit: mm) model frame 263.6 64.5 210.0 2-M6 welding stud 41.0 3-Ø 7.5 76.0 71.0 140.0 PAE-A3 362.0 2-M6 clinch nut 2-M6 welding stud 61.5 PAE-A4 2-M6 clinch nut...
  • Page 130 SP100 series solar pump inverter Peripheral accessories D.4.4 Solar panel Table D-5 Solar panel model selection Open-circuit voltage class of PV module 50 ± 1V Inverter model Number of modules per string * number Module power±5Wp of strings SP100-0R7-2-T-6-S SP100-1R5-2-T-6-S...
  • Page 131 SP100 series solar pump inverter Function parameter list Appendix E Function parameter list The function parameters of the inverter are divided into groups by function. Each group includes several function codes (each function code identifies a function parameter). A three-level menu style is applied to function codes. For example, "P08.08" indicates the 8th function code in the P08 group.
  • Page 132 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code speed. Setting range: Max (P00.04, 10.00Hz)–599.00Hz Specifies the upper limit of the inverter output frequency, which should be smaller than or equal to the max. output frequency.
  • Page 133 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code Specifies the running direction. Setting range: 0–2 P00.13 Running direction 0: Run in default direction ○ 1: Run in reverse direction 2: Disable reverse running Specifies the carrier frequency. A high...
  • Page 134 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code 3: Static autotuning 2 (partial autotuning) Specifies the function parameter restoration. Setting range: 0–4 0: No operation 1: Restore to default values (excluding motor parameters) Function 2: Clear fault or pre-alarm records P00.18...
  • Page 135 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code Specifies whether the inverter automatically runs after re-power on. Power-off restart P01.21 Setting range: 0–1 ○ selection 0: Disable 1: Enable Group P02––Parameters of motor 1...
  • Page 136 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code of SM 1 Number of pole P02.17 Setting range: 1–50 ◎ pairs of SM 1 Rated voltage of Model P02.18 Setting range: 0–1200V ◎ SM 1...
  • Page 137 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code Setting range: P03.02–P00.03 (Max. output High-point frequency) P03.05 frequency for 10.00 Hz ○ Note: Applicable only to vector control switching mode. Speed-loop Setting range: 0–8 (corresponding to P03.06...
  • Page 138 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code SVC 1 (P00.00 = 1). Weakening Used when the AM is in flux-weakening coefficient in P03.22 control. ○ constant power Setting range: 0.1–2.0 zone Lowest weakening P03.23...
  • Page 139 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code cut-off of motor 1 Used to compensate for the motor rotating speed change caused by load V/F slip change in the space voltage vector mode, P04.09 compensation 100.0%...
  • Page 140 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code proportional parameter is valid when the SM V/F coefficient in SM control mode is enabled. V/F control Setting range: 0–5000 Used to set the integral coefficient of Reactive current reactive current closed-loop control.
  • Page 141 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code respectively. When a bit is 0, the input terminal is positive; when a bit is 1, the input terminal is negative. Setting range: 0x00–0x1F P05.32 AI1 lower limit Setting range: 0.00V–P05.34...
  • Page 142 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code threshold determination 29: Switch to power frequency through S terminal determination 30: Switch to PV 31: Dry-pumping pre-alarm 32: Full-water pre-alarm 33: Empty-water pre-alarm Specifies the output terminal polarity.
  • Page 143 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code your password and save it in a secure place. After you exit the function code editing interface, the password protection function is enabled within 1 minute. If password protection is enabled, "0.0.0.0.0"...
  • Page 144 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code communication control 3: Valid for all control modes Rectifier bridge P07.11 Setting range: -20.0–120.0°C 0.0°C ● temperature Inverter module P07.12 Setting range: -20.0–120.0°C 0.0°C ● temperature...
  • Page 145 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code 11: Motor overload (E11) 12: Inverter overload (E12) 13: Phase loss on input side (E13) 14: Phase loss on output side (E14) 16: Inverter module overheat (E16)
  • Page 146 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code Output current at Setting range: 0.0–3000.0A P07.36 0.0A ● present fault Bus voltage at Setting range: 0.0–2000.0V P07.37 0.0V ● present fault Max. temperature P07.38 Setting range: -20.0–120.0°C 0.0°C...
  • Page 147 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code Output current at Setting range: 0.0–6300.0A P07.52 0.0A ● 2nd-last fault Bus voltage at Setting range: 0.0–2000.0V P07.53 0.0V ● 2nd-last fault Temperature at Setting range: -20.0–120.0°C P07.54...
  • Page 148 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code 5th-last pre-alarm P07.71 ● type Group P08––Enhanced functions Function Name Description Default Modify code Specifies the number of automatic fault reset times when the inverter uses automatic fault reset.
  • Page 149 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code Thousands place: PWM loading mode selection 0: Interruptive loading 1: Normal loading Group P11––Protection parameters Function Name Description Default Modify code Setting range: 0x000–0x111 Ones place: 0: Disable software input phase loss protection.
  • Page 150 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code stalling protection 220V: 120–150% (standard bus voltage) 120% voltage During accelerated running, as the load is too large, the actual acceleration rate of motor is lower than that of output frequency.
  • Page 151 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code (reserved) 2: Pulse superimposition (reserved) Specifies the pole position orientation current. It is valid within the lower limit of pull-in current switch-over frequency threshold. If you need to increase the start P13.02...
  • Page 152 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code detection time anti-maladjustment function. If the load inertia is large, increase the value of this parameter properly, however, the responsiveness may slow down accordingly. Setting range: 0.0–10.0s...
  • Page 153 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code must be consistent with that on the host controller. Otherwise, the communication fails. A greater baud rate indicates faster communication. Setting range: 0–5 0: No check (N, 8, 1) for RTU...
  • Page 154 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code 1: Communication password protection is valid. Setting range: 0–1 0: Disable P14.10 Remote upgrade ◎ 1: Enable (baud rate is changed to 57600bps automatically) Bootload software P14.11...
  • Page 155 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code 4: Even check (E, 8, 2) for RTU 5: Odd check (O, 8, 2) for RTU Note: The data format set on the inverter must be consistent with that on the host controller.
  • Page 156 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code 1: Enable Vmp reference Setting range: 0–1 P15.01 voltage source 0: Set by keypad ◎ selection 1: Set by MPPT When P15.01 is 0, this parameter determines the reference voltage.
  • Page 157 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code corresponds to P00.03) Proportional coefficient 1 of target frequency. A greater value indicates P15.06 ○ stronger effect and faster adjustment. Setting range: 0.00–100.00 Integral coefficient 1 of target frequency. A greater value indicates stronger effect and P15.07...
  • Page 158 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code Time setting on empty-water level delay. Empty-water level This parameter is still valid for digital P15.16 ○ delay empty-water signal. Setting range: 0–10000s Time setting on empty-water level Empty-water level wake-up delay.
  • Page 159 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code Setting range: 0.0–3600.0s Note: When the bus voltage is lower than  the undervoltage point or the PV voltage is lower than 70V, the system directly reports the weak-light alarm without any delay.
  • Page 160 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code smaller range, which means faster tracking. The voltage corresponding to the max. power must be within the range. P15.26 and P15.27 must be adjusted according to the site situation.
  • Page 161 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code Setting range: P15.27–6553.5V When the parameter is set to 0, the system automatically switches between PV and power frequency according to the detected PV voltage value and switching threshold.
  • Page 162 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code for switching to PV threshold, the system switches to the PV input input through the relay output after the weak-light wake-up delay. To avoid switching back and forth, this threshold should be slightly higher than P15.33.
  • Page 163 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code 3: -4/-D4, 380V three-phase input, three-phase output The factory value depends on the model. Model Default settings -4/-D4 -2/-D2 -SS2/-DS2 When P15.40=1, the flow calculation uses the point between P15.41 and P15.50 for...
  • Page 164 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code curve. Setting range: 0.0–1000.0m³/ h Corresponding flow point when the flow of PQ curve flow water pump is at the second point of PQ P15.47 0.0m³/h ◎...
  • Page 165 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code "average voltage/100", range [2.0V, 5.0V]. When this value is not 0, the step value is the value. Setting range: 0.0–10.0V MPPT regulation P16.05 Setting range: 0.0–120.0s 2.0s...
  • Page 166 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code Setting range: 0.0–3000.0A Displays the present motor rotation Motor rotation P17.05 speed. 0rpm ● speed Setting range: 0–65535rpm Displays the present torque current of the P17.06 Torque current inverter.
  • Page 167 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code controlled by removing capacitors). Setting range: 0.00–100.00A The function code is used to display the Current of single-phase motor secondary winding P17.39 secondary current (when the single-phase motor is 0.00A...
  • Page 168 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code total pump flow the total pump flow. Total pump flow = P18.13*65535 + P18.14 When it is set to 1, the duration of this run can be reset. P18.13 and P18.14 are Reset total pump cleared and then accumulated again.
  • Page 169 SP100 series solar pump inverter Function parameter list Function Name Description Default Modify code Boost current loop P19.03 0.000–65.535 0.010 ○ Boost voltage loop Model P19.04 P19.05–25.0A ○ upper limit depended Boost voltage loop P19.05 0.0A–P19.04 0.0A ○ lower limit...
  • Page 170 6 6 0 0 1 - 0 1 3 0 2...

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