Delta H2.5 Operation And Installation Manual
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Delta H2.5 Operation And Installation Manual

Grid-tie transformerless solar inverter
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See also: Commissioning Manual
The power behind competitiveness
Grid-tie Transformerless Solar Inverter
H2.5 / H3 / H3A / H4A / H5A
Operation and Installation Manual
English
1
37
www.deltaww.com

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  • Page 1 The power behind competitiveness Grid-tie Transformerless Solar Inverter H2.5 / H3 / H3A / H4A / H5A Operation and Installation Manual English www.deltaww.com...

  • Page 3: Table Of Contents

    Contents ........1　General Information ........　...
  • Page 4 ... Figure 4-1 : Attaching the mounting bracket for H2.5 / H3 / H3A / H4A / H5A .....

  • Page 5: 1　General Information

    1　General Information 1.1 Scope of delivery Congratulations on the purchase of your Delta H2.5 / H3 / H3A / H4A / H5A grid-tied solar inverter. This manual will assist you in becoming familiar with this product. Please observe all safety regulations and take into account the connection requirements by your local grid utility.

  • Page 6: Validity

    PV Array into single-phase AC output power to Grid. PV Array Solar Inverter Electrical Grid Figure 1-1 : Solar system operation illustration 1.6 Additional Information For more detailed information for H2.5 / H3 / H3A / H4A / H5A or other related product...

  • Page 7: 2　Installation And Wiring

    Installation and Wiring 2　Installation and Wiring 2.1 Instruction before Installation manual thoroughly before installation. Installation of the unit and start-up procedures must be carried out by an accredited technician. 2.2 Unpacking Unpacking process is shown as Figure 2-1. Figure 2-1 : Unpacking process protective packaging.

  • Page 8: Package Inspection

    ② For H3A ④ For H3 H2.5 ③ ⑤ Figure 2-2 : Components of H2.5 / H3 / H3A / H4A / H5A H2.5 / H3 / H3A / H4A / H5A Object Description ① PV Inverter Solar inverter User ②...

  • Page 9: Identification Label

    3kVA nom. 14.3A max. * 2.99kVA max. for AU/NZ Protective class: I OVC: 3 Inverter topology: transformer-less Year & Month of Manufacturing: YYMM Delta Electronics (Netherlands) B.V. The Netherlands Made in China : DELTASOL Figure 2-3 : The identification label...

  • Page 10: 3　Product Overview

    3 Product Overview 3.1 Dimensions H2.5 / H3 / H3A / H4A Figure 3-1 : Dimensions of H2.5 / H3 / H3A / H4A / H5A 3.2 Function Introduction Figure 3-2. The description for individual objects can be found in sections 3.2.1.

  • Page 11: Led And Button

    Product Overview 3.2.1 LED and Button Figure 3-3 : LED and Button The LEDs indicate the operating state of the inverter. Status Explanation flashing The red LED flashing indicates error "E34：Insulation" Earth Fault The red LED glowing indicates error or fault. Alarm steady on ( see 9.1 Error Message )

  • Page 12: Inverter Comparison

    Product Overview 3.3 Inverter Comparison Model series 211/221 does not have the DC switch. _221 (No DC switch) _221 H2.5 H2.5 _211 (No DC switch) _211 (No DC switch) _221 Figure 3-4 : Inverter comparison...

  • Page 13: 4　Installation

    Installation 4 Installation 4.1 Installation Location WARNING ! Do not install the unit near or on flammable surfaces. Mount the unit tightly on a solid/smooth surface. CAUTION ! The unit should not be installed in direct sunlight. 4.2 Mounting This unit is designed to be wall-mounted. Please ensure the installation is perpendicular to the floor and the AC plug located at the base of the unit.
  • Page 14 Installation ① 22.5 37.5 ② ③ Figure 4-1 : Attaching the mounting bracket for H2.5 / H3 / H3A / H4A / H5A Figure 4-2 : Correct and incorrect installation illustration...
  • Page 15 Installation CAUTION ! • The bracket supplied with the unit is specially designed and should be the only mounting device used for the unit. • It is recommended to install the inverter in a suitable location which offers easy and safe access for service and maintenance. •...

  • Page 16: 5　Wiring

    1. Ensure voltage values and polarities are correct. 2. When grounding the solar array, an isolation transformer is required due to the H2.5 / H3 / H3A / H4A / H5A not having galvanic isolation between the DC-input and AC-output.

  • Page 17: Ac Grid Connection : L + N + Pe

    WARNING ! Before commencing AC wiring, please ensure all AC circuit breakers are switched off. 5.2.1 Required protective devices and cable cross-sections Power rating Upstream AC circuit breaker H2.5 3.125 kVA H3 / H3A 3.75 kVA H4A / H5A 5 kVA...

  • Page 18: Dc Connection (From Pv Array)

    PV array is OFF. CAUTION ! The maximum open circuit voltage of the PV Array must not exceed 500Vdc(H2.5) / 600Vdc (H3 / H3A / H4A / H5A). NOTE The isolator installed between the PV Array and inverter must meet the rating...

  • Page 19: Asymmetrical Loading

    Wiring 5.3.1 Asymmetrical Loading The inverters (H3A / H4A / H5A) operate using two separate MPP trackers that can handle both symmetrical and asymmetrical loads to allow for optimum adjustment. This allows for the requirements of complex PV system designs to be fulfilled. MPP range with Max.

  • Page 20: 6　Active/Reactive Power Control And Lvrt (Optional)

    Active/Reactive Power Control and LVRT (Optional) 6　Active/Reactive Power Control and LVRT (Optional) There are 2 settings for active power and 4 settings for reactive power control that can be configured based on the requirement of the local network operator. ATTENTION The parameters are set according to the requirements of the selected country.

  • Page 21: Reactive Power Control

    Active/Reactive Power Control and LVRT (Optional) Gradient 40% Pm/Hz Fstart(50,2Hz) Power vs. frequency curve for VDE-AR-N 4105 Pimax Gradient 83.3% Pimax/Hz Fstart(50,3Hz) Power vs. frequency curve for CEI-021 Figure 6-1 : Power vs. frequency characteristic 6.2 Reactive Power Control The setting value is either： •　...
  • Page 22 Active/Reactive Power Control and LVRT (Optional) 6.2.1 Users can set the power factor from Cap 0.8 to Ind 0.8 (inverter would stop reactive power control if output power is below 20% rated power). Once user enables this method, the inverter will deliver reactive power according to output active power at that moment.
  • Page 23 Active/Reactive Power Control and LVRT (Optional) Qmax(48.4%) Qmin(48.4%) Q/Sn Type A Q/Sn Type B Figure 6-3 : Q(U) characteristic...

  • Page 24: Low Voltage Ride Through (Lvrt)

    Active/Reactive Power Control and LVRT (Optional) 6.3 Low Voltage Ride Through (LVRT) According to CEI 0-21, 8.5.1 To avoid undue separation from the network if voltage dips occur, a generation system with over 6 kW total power must be able to comply with certain functional requirements, which are known as LVRT (Low Voltage Ride Through) in international literature.

  • Page 25: Digital Input

    To implementation of power management, the digital input interface receives the specifications of the network operator via a ripple control receiver or a DRED. H2.5/H3/H3A/H4A/H5A can access these command via PPM DC1. • Germany : The active power limitation in the stages 0%, 30%, 60% and 100% •...

  • Page 26: 7　Turning The Pv Inverter On/Off

    Turning the PV inverter on/off 7 Turning the PV inverter on/off WARNING ! The internal temperature may exceed over 70°C while operating. To avoid injury, do not touch the surface of the inverter whilst the unit is in operation. After installation, please ensure the AC, the DC and communication connection are correct.

  • Page 27: Starting Up The Inverter

    1. Turn on the device’s Wi-Fi function. 2. Select the inverters' Wi-Fi SSID: Delta-[serial number] (e.g. Delta-O4L16A00001W0 ; See Inverter ” The identification label”) 3. Enter the Wi-Fi password: DELTASOL (The Default password is also printed on the identification label) 4.

  • Page 28: 8　Maintenance

    Maintenance 8 Maintenance In order to ensure normal operation of the inverter, please check the unit regularly. Check that all terminals, screws and cables are connected and appear as they did upon installation. If there are any impaired or loose parts, please contact your solar installer immediately.

  • Page 29: 9　Error Message And Trouble Shooting

    Error Message and Trouble Shooting 9 Error Message and Trouble Shooting 9.1 Error Message & Trouble Shooting Error Message Possible cause Action 1. Check the utility frequency on the 1. Actual utility frequency is higher inverter terminal than the OFR setting E01: OFR 2.
  • Page 30 3. Detection circuit malfunction the inverter 1. Modify the solar array configuration 1. Actual Solar voltage is over and make the Voc less than 510Vdc (H2.5) or 500Vdc (H2.5) or E30: OVR(PV) 560Vdc (H3/ H3A/ H4A) 550Vdc (H3/ H3A/ H4A) 2.
  • Page 31 Error Message and Trouble Shooting Fault Message Possible cause Action 1. Check the auxiliary circuitry inside the inverter 1. Auxiliary power circuitry malfunction F15: HW ADC1 2. Check the detection circuit inside 2. Detection circuit malfunction the inverter 1. Check the auxiliary circuitry inside the inverter 1.
  • Page 32 1. Driver for boost is defective 2. Modify the solar array setting, 2. Voc of PV array is over and make the Voc less than F35: 510Vdc (H2.5) or 500Vdc (H2.5) or HW Bus OVR 560Vdc (H3/ H3A/ H4A) 550Vdc (H3/ H3A/ H4A) 3.

  • Page 33: De-Commissioning

    De-Commissioning 10 De-Commissioning De-Commissioning Procedure: If necessary to put the device out of operation for maintenance and/or storage, please follow the instructions below. WARNING ! To avoid injuries, please follow this procedures 1. Switch off AC circuit breaker to disconnect from electricity grid. 2.

  • Page 34: Technical Data

    Technical Data 11 Technical Data 11.1 Specifications H2.5 _210 _210 _220 _220 _220 Model H2.5 _211 _211 _221 _221 _221 GENERAL Enclosure Powder-coated aluminium Operating temperature -25~60°C, full power up to 40°C Operating Altitude 2000m Relative humidity 0% – 95% non-condensing.
  • Page 35 Technical Data H2.5 _210 _210 _220 _220 _220 Model H2.5 _211 _211 _221 _221 _221 AC OUTPUT (Grid side) Nominal output power 2500VA 3000VA 4000VA 5000VA Maximum power 2500VA 3000VA 4000VA 5000VA Voltage 230Vac -20%~+22% Nominal output current 10.9 A 13 A 17.4 A...
  • Page 36 _221 _221 _221 (a) H2.5 : 2.49kVA max. for Australia (AU / NZ) (b) H3 / H3A : 2.99kVA max. for Australia (AU / NZ) (c) H5A : 4.99kVA max. for Australia (AU / NZ) (d) H5A : 4.6kVA max. for Germany (DE) 3: reactive power control disabled 4: not support AS4777.2:2015 Single-phase inverters used in three-phase combinations...
  • Page 37 5013247804 Version 07171221...

This manual is also suitable for:

H3H3aH4aH5a

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