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Emheater EM15-SP Series User Manual

Solar inverter
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  • Page 2 Due to the continuous improvement of solar inverter, this document will be updated without prior notice. EM15-SP series solar inverter complies with the following international standards. All products have passed the CE certification.

  • Page 3: Table Of Contents

    Contents 1. Safety Information and Precautions ......................... 1 1.1 Safety Information ............................1 2. Product Information ..............................3 2.1 Designation Rules ............................3 2.2 Model and Technical Data ..........................3 2.3 Product Appearance and Installation Dimension ................... 4 2.3.1 Product Appearance ..........................4 2.3.2 Appearance and Installing Dimension ....................

  • Page 5: Safety Information And Precautions

    Warning: Indicates that failure to comply with the notice will result in personal injury or property damage. Read this manual carefully so that you have a thorough understanding. Installation, commissioning or maintenance may be performed in conjunction with this chapter. EMHEATER will assume no liability or responsibility for any injury or loss caused by improper operation.
  • Page 6 1. Safety Information and Precautions EM15-SP User Manual Warning: When two solar inverters are laid in the same cabinet, arrange the installation positions properly to ensure the  enough cooling effect. Do not drop wire residue or screw into the solar inverter. Failure to comply will result in damage to the solar ...

  • Page 7: Product Information

    EM15-SP User Manual 2. Product Information 2. Product Information 2.1 Designation Rules EM15 Series Frequency Inverter Products Type: PV use Voltage range: 1: DC 250~450V to Three phase AC 220V 3: DC 350~800V to Three phase AC 380V Adaptable motor: 7d5: 7.5KW ;011: 11KW Diagram 2-1 Designation rules 2.2 Model and Technical Data Table 2-1EM15-SP Model and technical data...

  • Page 8: Product Appearance And Installation Dimension

    2. Product Information EM15-SP User Manual 2.3 Product Appearance and Installation Dimension 2.3.1 Product Appearance Diagram 2-2 Product appearance (With potentiometer) 2.3.2 Appearance and Installing Dimension Diagram 2-3 Appearance and installation dimension of EM15 series (Plastic housing structure) Appearance and installing dimension ( Unit: mm ) Matching inverter Voltege Power Range...

  • Page 9: Installation Dimension Of External Keypad (Keypad Tray)

    EM15-SP User Manual 2. Product Information Diagram 2-4 Appearance and installation dimension of EM15 series (Metal housing structure) Appearance and installing dimension ( Unit: mm ) Matching inverter Voltege Power Range 3PH 220V 15~18.5kW Φ7 3PH 380V 30~37kW 3PH 220V 22kW Φ10 3PH 380V...

  • Page 10: Installation Of Frequency Inverter

    3. Installation of Frequency Inverter EM15-SP User Manual 3.Installation of Frequency Inverter 3.1 Installation Environment 1. The place with indoor vents or ventilation devices. 2. The environment temperature shall be -10℃~40℃. If the temperature is over 40℃but less than 50℃, better to take down the cover of frequency inverter or open the front door of cabinet to facilitate heat dissipation.

  • Page 11: Sketch And Description Of Main Circuit Terminals

    EM15-SP User Manual 3. Installation of Frequency Inverter 3.3 Sketch and Description of Main Circuit Terminals 3.3.1 Function and Description of Main Circuit Terminals Three phase 220V output：EM15-SP1-d75~EM15-SP1-011 Three phase 380V output：EM15-SP3-d75～EM15-SP3-022 Three phase 380V output：EM15-SP3-030～EM15-SP3-090 Three phase 380V output：EM15-SP3-110～EM15-SP3-400 Terminal symbol Function description AC power input terminals...

  • Page 12: Control Circuit And Main Circuit Terminals Description

    3. Installation of Frequency Inverter EM15-SP User Manual 3.4 Control Circuit and Main Circuit Terminals Description 3.4.1 Control Circuit and Main Circuit Wiring Diagram3-2 EM15-SP control circuit and main circuit wiring 3.4.2 Control Circuit Terminal Layout Diagram3-3 EM15-SP control circuit terminal sketch diagram 3.4.3 Description of Control Circuit Terminals Terminal Type...
  • Page 13 EM15-SP User Manual 3. Installation of Frequency Inverter Terminal Type Terminal Name Terminal function description Symbol External power supply input It connect with +24V default terminals AI1-GND Analog input 1 1. Input range: DC 0V~10V/ 0mA~20mA(decided by jumper Analog AI1/AI2 on the control board); AI3: DC -10V~+10V AI2-GND Analog input 2 input...

  • Page 14: Collection Diagram For Different Motor

    3. Installation of Frequency Inverter EM15-SP User Manual 3.5 Collection Diagram For Different Motor Photovoltaic cell Note: For the EM15-SP1S series, U and V as single Phase 220V output terminal. EM15-SP + - U V W Water Tank Water Pipe C o n t r o l T e r m i n a l Pump Diagram3-4 220V three phase installed without water level sensor (PV Input)

  • Page 15: The Wiring Of Water-Level Automatic Control

    EM15-SP User Manual 3. Installation of Frequency Inverter 3.5.1 The Wiring of Water-Level Automatic Control The wiring for floater water-level switch connected by cable The common port, which using floate water-level switch connected by cable, is fed to the terminal “COM” of EM15-SP.
  • Page 16 3. Installation of Frequency Inverter EM15-SP User Manual Remarks: When the actual water-level in the reservoir is lower than horizontal line of low water-level, DI4 and DI5 will be disconnected from the COM as well as controller automatically strat the pum. On the contrary, if the actual water-level is higher than the horizontal line of high water-level, DI4 and DI5 will be connected to COM as well as controller automatically stop the pump to prevent water overflow.

  • Page 17: Operation And Display

    EM15-SP User Manual 4. Operation and Display 4 Operation and Display 4.1 Instruction of Operation and Display Diagram 4-1 Operating panel Name Function The 5-digit LED display is able to display the set frequency, output frequency, monitoring LED display area data and fault codes.

  • Page 18: Function Code Table

    4. Operation and Display EM15-SP User Manual 4.2 Function Code Table Debugging specification: 1. Set A1-00 to turn on photovoltaic mode, or it’ll run in ordinary inverter mode; Set A1-01 to enable MPPT function to search Vmpp voltage automatically; Otherwise, the default Vmpp voltage needs to be set manually; 2.
  • Page 19 EM15-SP User Manual 4. Operation and Display When VOC is automatically detected, this value limits the lower limit of automatic detection CVT proportional gain 0.0% ~999.9% 100.0% A1-04 The larger value, the greater effect and the faster adjustment. CVT integral gain 0.0%~999.9% 100.0% A1-05...
  • Page 20 4. Operation and Display EM15-SP User Manual This parameter to decide under load warning judgement. When inverter is in running state, if the running current is lower than detection current A1-22 and the continuous running time is greater than detection time A1-23, inverter enters the under load warning state(A-LL) and stops automatically.
  • Page 21 EM15-SP User Manual 4. Operation and Display Ten’s digit: 51# DI function detection logic 0: Enable in High level 1: Enable in low level Hundred’s digit: 52# DI function detection logic 0: Enable in High level 1: Enable in low level Detection source: 0: Single DI terminal detection When the DI function is 52 or 53, signal output is judged through a single terminal.
  • Page 22 4. Operation and Display EM15-SP User Manual A1-48 Starting frequency of under 0.00 - 320.00Hz 0.00Hz load warning 0.00Hz: Frequency detection is invalid If the value is not 0, the under load warning only effective if output frequency is greater than A1-48. A1-49 0.0% - 100.0% 0.0%...
  • Page 23 EM15-SP User Manual 4. Operation and Display Code Name Setting range Default Single-phase (220VAC) power supply needs to be reversed, it is necessary to realize by exchanging U1, U2 (or Z1/Z2) wiring; The capacitance of the starting capacitor is generally larger than that of the running capacitor, which can improve the starting torque;...
  • Page 24 4. Operation and Display EM15-SP User Manual Code Name Setting range Default (arithmetic relationship operation depends on ten’s digit) 2: Switchover between main frequency X source and auxiliary source Y 3: Switchover between main source X and arithmetic operation between of main source X and auxiliary source 4: Switchover between auxiliary source Y and arithmetic operation between of main source X and auxiliary source Ten’s digit : The arithmetic operation relationship...
  • Page 25 EM15-SP User Manual 4. Operation and Display Code Name Setting range Default Record of digital setting 0: Not record F0-23 frequency of power failure 1: Record The reference frequency of 0:Maximum frequency (F0-10) F0-25 Acceleration/ deceleration 1: Setting frequency time 2:100Hz Base frequency for UP/ 0: Running frequency...
  • Page 26 4. Operation and Display EM15-SP User Manual Code Name Setting range Default inductance tuning Inverter power> 55KW:0.01mH～655.35mH Auto Inverter power<= 55KW: 0.01A～F1-03 F1-10 Asyn. mtor no-load current tuning Inverter power> 55KW:0.1A～F1-03 F1-16 Synchronous motor stator Auto Inverter power <= 55KW：0.001Ω～65.535Ω resistance tuning Inverter power >...
  • Page 27 EM15-SP User Manual 4. Operation and Display Code Name Setting range Default Excitation adjustment F2-14 0～60000 1000 integral gain Torque adjustment F2-15 0～60000 1000 proportional gain Torque adjustment integral F2-16 0～60000 1000 gain Group F3: V/F control parameters Code Name Setting range Default 0:Linear V / F curve...
  • Page 28 4. Operation and Display EM15-SP User Manual Code Name Setting range Default setting 0.0s～1000.0s acceleration time of VF F3-15 0.0s Note: Indicates the deceleration time when 0V changes to separate the motor rated voltage Group F4: Input terminals Code Name Setting range Default 0: No function...
  • Page 29 EM15-SP User Manual 4. Operation and Display Code Name Setting range Default F4-10 DI filter time 0.000s～1.000s 0.010s 0: Two line control 1 1: Two line control 2 F4-11 Terminals command mode 2: Three line control 1 3: Three line control 2 Terminals UP/DOWN F4-12 0.001Hz/s～65.535Hz/s...
  • Page 30 4. Operation and Display EM15-SP User Manual Code Name Setting range Default 1:0.0% Ten’s digit: A2 is less than minimum input Set selection, as above Hundred’s digit: Potentiometer less than Min. Input selection, as above F4-35 DI1 Relay time 0.0s～3600.0s 0.0s F4-36 DI2 Relay time...
  • Page 31 EM15-SP User Manual 4. Operation and Display Code Name Setting range Default 24: Accumulated power up time arrives 25: Frequency level detection FDT2 output 26: Output when frequency 1 arrives 27: Output when frequency 2 arrives 28: Output when current 1 arrives 29: Output when current 2 arrives 30: Output when timing up 31: AI1 input over limit...
  • Page 32 4. Operation and Display EM15-SP User Manual Code Name Setting range Default Thousands’s bits: RELAY1 Ten thousands’s bit;s: Reserved Group F6: Start and stop control Code Name Setting range Default 0: Directly start F6-00 Starting mode 1: start after speed tracking 2: Pre-excitation start (AC asynchronous machine) F6-01 Resersed...
  • Page 33 EM15-SP User Manual 4. Operation and Display running mode Bit00: Running frequency 1(Hz) Bit01: Setting frequency (Hz) Bit02: DC bus voltage (V) Bit03: Output voltage (V) Bit04: Output current (A) Bit05: Output power (KW) Bit06: Output torque (%) Bit07: DI input status Bit08: DO output status Bit09: AI1 voltage (V) Bit10: AI2 voltage (V)
  • Page 34 4. Operation and Display EM15-SP User Manual F7-11 Software version No. 0: 0 decimal places The number of decimal 1: 1 decimal place F7-12 places of load speed 2: 2 decimal places Displays 3: 3 decimal places Accumulated time since F7-13 0～65535 hour power on...
  • Page 35 EM15-SP User Manual 4. Operation and Display Frequency arrival detection F8-21 0.0%～100.0%（Maximum frequency ） 0.0% amplitude Jump frequency during 0: Invalid F8-22 acceleration/deceleration 1: Valid Swtich over point between F8-25 acceleration time 1 to 0.00Hz～Maximum frequency 0.00Hz acceleration time 2 Swtich over point between F8-26 deceleration time 1 to...

  • Page 36: Group F9: Fault And Protection

    4. Operation and Display EM15-SP User Manual voltage protection IGBT Module temperature F8-47 0℃～100℃ 75℃ arrives 0: Working in running 1: Working after power up F8-48 Cooling fan control 2: Working by temperature(45℃/40℃) 3: Solar Mode, working if Vpn > A1-17) F8-49 Wake up frequency Sleep frequency (F8-51)～Maximum（F0-10)
  • Page 37 EM15-SP User Manual 4. Operation and Display 6: Over voltage in deceleration 7: Over voltage in constant speed during 8: Buffer resistance overload 9: Undervoltage 10: Inverter overload 11: Motor overload 12: Input phase loss 13: Output phase loss 14: Igbt Module overheating 15: External fault 16: Communication error 17: Contactor is abnormal...
  • Page 38 4. Operation and Display EM15-SP User Manual DC bus voltage at when the F9-29 － － second failure Input terminals status at F9-30 － － when the second failure Output terminals status at F9-31 － － when the second failure Inverter status at when the F9-32 －...
  • Page 39 EM15-SP User Manual 4. Operation and Display 0: Free stop 1: Stop by stop mode 2: Continue to run Thousands of bits: (30) 0: Free stop 1: Deceleration stop 2:Skip to 7% of the rated motor frequency to continue running, restore to run with setting frequency after no missing load Million: PID feedback lost in running (31) 0: Free parking...
  • Page 40 4. Operation and Display EM15-SP User Manual Detection value of the speed F9-69 0.0％～50.0％( Max frequency) 20.0% deviation is too big 0.0s: No detect Detection time of speed F9-70 0.0s deviation is too big. 0.1～60.0s Group FA: PID function Code Name Setting range Default...
  • Page 41 EM15-SP User Manual 4. Operation and Display PID parameter switching FA-20 FA-19～100.0% 80.0% deviation 2 FA-21 PID initial value 0.0%～100.0% 0.0% FA-22 PID initial value hold time 0.00～650.00s 0.00s The maximum value of FA-23 positive deviations for two 0.00%～100.00% 1.00% output The maximum value of FA-24...
  • Page 42 4. Operation and Display EM15-SP User Manual memory selection 0: No memory power-off 1: Power off memory Ten: Stop memory selection 0: Stop no memory 1: Stop memory Running time of simple PLC FC-18 0.0s(h)～6553.5s(h) 0.0s/h Segment 0 Acceleration/deceleration FC-19 time of simple PLC Segment 0～3 Running time of simple PLC...
  • Page 43 EM15-SP User Manual 4. Operation and Display Acceleration/deceleration FC-37 time of simple PLC Segment 0～3 Running time of simple PLC FC-38 0.0s(h)～6553.5s(h) 0.0s/h Segment 10 Acceleration/deceleration FC-39 time of simple PLC Segment 0～3 Running time of simple PLC 0.0s(h)～6553.5s(h) FC-40 0.0s/h Segment 11 Acceleration/deceleration...
  • Page 44 4. Operation and Display EM15-SP User Manual 5:9600BPS 6:19200BPS 7:38400BPS 8:57600BPS 9:115200BPS Ten: reserved Hundred places: reserved 0: No parity (8-N-2) 1: Even check (8-E-1) Fd-01 MODBUS data format 2: Odd parity (8-O-1) 3: No parity (8-N-1) (MODBUS active) 0:Broadcast address 1～249 Fd-02 Local address...
  • Page 45 EM15-SP User Manual 4. Operation and Display Bit: U group monitoring parameters 0: Not displayed Function parameter group 1: Display FP-02 display selection Ten: Advanced parameters 0: Not displayed 1: display Bit: User custom parameter group display selection 0: Not displayed Personality parameter group 1: Display FP-03...
  • Page 46 4. Operation and Display EM15-SP User Manual U0-30 Main frequency X 701EH U0-31 Auxiliary frequency Y 701FH U0-32 Viewing any register address value 7020H U0-34 Motor temperature 7022H U0-35 Target torque 7023H U0-37 Power factor angle 7025H U0-39 Target voltage of V/F separation 7027H U0-40 Output voltage of V/F separation 7028H...

  • Page 47: Fault Diagnosis And Solution

    EM15-SP User Manual 5. Fault Diagnosis and solution 5. Fault Diagnosis and Solution 5.1 Fault Alarm and Countermeasures EM15-SP inverter has 35 types of warning information and protection function. In case of abnormal fault, the protection function will be invoked, the inverter will stop output, and the faulty relay contact of the inverter will start, and the fault code will be displayed on the display panel of the inverter.
  • Page 48 5. Fault Diagnosis and solution EM15-SP User Manual The input voltage is not within the allowable range. Adjust the input voltage to the allowable range. Fault Code Err09 Fault Type Low voltage 1: Instantaneous power failure occurs on the input 1: Reset the fault.

  • Page 49: Appendix I. Modbus Communication Protocol

    EM15-SP User Manual Appendix I. Modbus Communication Protocol Appendix I. Modbus Communication Protocol EM15series of inverter provides RS485 communication interface, and adopts MODBUS communication protocol. User can carry out centralized monitoring through PC/PLC to get operating requirements. And user can set the running command, modify or read the function codes, the working state or fault information of frequency inverter by Modbus communication protocol.

  • Page 50: Communication Data Structure

    Appendix I. Modbus Communication Protocol EM15-SP User Manual the single master “Inquiry/Command”, all of slaves will return a signal that is a response; for the broadcast information provided by master, slave needs not feedback a response to master machine. Communication data structure Modbus protocol communication data format of EM15 series inverter is shown as following.
  • Page 51 EM15-SP User Manual Appendix I. Modbus Communication Protocol 1Byte 2Byte >3.5Byte 1Byte 1Byte Slave reads and Target Read the Free response error correction and station command Error type Free (Start frame) frame address (0x83) L……H Calculate CRC Error types： correction 01-Command code error 02-Address error 1Byte...
  • Page 52 Appendix I. Modbus Communication Protocol EM15-SP User Manual When the CRC is appended to the message, the low-order byte is appended first, followed by the high-order byte. unsigned int crc_chk_value(unsigned char *data_value,unsigned char length unsigned int crc_value=0xFFFF; int i; while(length--) crc_value^=*data_value++;...
  • Page 53 EM15-SP User Manual Appendix I. Modbus Communication Protocol 0001: Forward running 0002: Reverse running 0003: Forward jog 2000H 0004: Reverse jog 0005: Free stop 0006:Decelarating stop 0007: Fault reset Read inverter status: (Read only) Command word address Command function 0001: Forward running 3000H 0002: Reverse running 0003: Stop...

  • Page 54: Fault Information

    Appendix I. Modbus Communication Protocol EM15-SP User Manual 0000: No fault 0015: EEPROM read-write in fault 0001: Reserved 0016: Frequency inverter hardware fault 0002: acceleration over current 0017: Short circuit to ground fault 0003: deceleration over current 0018: Reversed 0004: Constant speed over current 0019: Reversed 0005: acceleration over voltage 001A: Accumulative running time reached...

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