Zeversolar Zeverlution Pro 33K Installation And Operating Instructions Manual
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Zeversolar Zeverlution Pro 33K Installation And Operating Instructions Manual

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  • Page 2: Table Of Contents

    Contents 1 About this manual ....................5 1.1 Validity ........................5 1.2 Target group ......................5 1.3 Symbols used in this manual ..................6 2 Safety ........................7 2.1 Intended use ....................... 7 2.2 Safety standards ...................... 7 2.3 Important safety information .................. 8 2.4 Symbols on the type label ..................
  • Page 3 5.4.2 AC connection ..........................23 5.4.3 Earthing protection ........................28 5.4.4 Residual current protection ....................29 5.4.5 Overvoltage category ........................ 29 5.4.6 AC circuit breaker ......................... 30 5.5 DC connection ......................31 5.5.1 Conditions for the PV generator (DC) .................. 31 5.5.2 Assembling the DC connectors ....................
  • Page 4 9.4 Display ........................55 9.4.1 Overview of menu structure ....................55 9.4.2 Initial page ............................56 9.4.3 Unlocking page ..........................56 9.4.4 Home page ............................56 9.4.5 Operation information .........................57 9.4.6 Main menu ............................58 9.4.7 Historical data ..........................58 9.4.8 Event log ............................
  • Page 5 11 Troubleshooting ....................73 12 Maintenance ....................75 12.1 Replace the fuse..................... 75 12.2 Cleaning the contacts of the DC switch ............... 76 12.3 Cleaning the heat sink ................... 76 12.4 Maintaining the fans ....................76 13 Recycling and disposal ................... 78 14 Warranty ......................

  • Page 6: About This Manual

    1 About this manual General Notes The Zeverlution Pro 33K is a transformerless three-phase inverter with two MPP trackers. It converts the direct current (DC) from a photovoltaic (PV) array to grid-compliant alternating current (AC) and feeds it into the utility grid.

  • Page 7: Symbols Used In This Manual

    1.3 Symbols used in this manual The safety precautions and general information used in this manual are as follows: DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING indicates a hazardous situation which, if not avoided, can result in death or serious injury.

  • Page 8: Safety

    2.1 Intended use Zeverlution Pro 33K is suitable for indoor and outdoor use. Zeverlution Pro 33K must only be operated with PV arrays (PV modules and cabling) of protection class II, in accordance with GB/T 20047.1. Do not connect any sources of energy other than PV modules to the inverter.

  • Page 9: Important Safety Information

    2.3 Important safety information Danger to life due to high voltages of the PV array! When exposed to sunlight, the PV array generates dangerous DC voltage which is present in the DC conductors and the live components of the inverter. Touching the DC conductors or the live components can lead to lethal electric shocks.
  • Page 10 Risk of injury due to hot heat sink! • The heat sink may get hot during operation. Do not touch! Grounding the PV array! • Comply with local regulations for grounding the PV array. We suggest that the frames of the PV modules must be reliably grounded.

  • Page 11: Symbols On The Type Label

    2.4 Symbols on the type label Symbol Explanation Beware of high voltage and operating current. The inverter operates at high voltage and current. Work on the inverter must only be carried out by skilled and authorized electricians. Beware of hot surfaces. The inverter can get hot during operation.

  • Page 12: Basic Safety Protection

    2.5 Basic safety protection We provide the following safety protection: 1） Over-voltage, under-voltage protection; 2） Over-frequency, under-frequency protection; 3） Over-temperature monitoring; 4） Residual current monitoring; 5） Insulation monitoring; 6） Active islanding protection (non-utility type); 7） Low voltage ride through (Utility type); 8）...

  • Page 13: Unpacking

    3 Unpacking 3.1 Scope of delivery Object Description Quantity Inverter Wall mounting bracket Mounting accessory kit Documentation DC connecter(positive) DC connecter(negative) 3.2 Checking the delivery Check the delivery for completeness and visible external damage, such as cracks in the enclosure or in the display. Inform the responsible shipping company immediately or contact your distributor if anything is damaged or missing.

  • Page 14: Mounting

    4 Mounting 4.1 Ambient conditions 1. The mounting location must be inaccessible to children. 2. The mounting location should be dry, freely and safely accessible at all times without the need for any auxiliary equipment. 3. Mount the inverter in areas where it cannot be touched inadvertently. 4.
  • Page 15 Recommended clearances for multiple inverters installation Avoid exposing the inverter to direct sunlight, rain and snow to ensure optimal operation and extend service life. It is recommended to mount the inverter under the shaded site of the building or to mount an awning or a protection cover above the inverter.

  • Page 16: Mounting Location

    4.2 Mounting location Danger to life due to fire or explosion! • Do not mount the inverter on flammable construction materials. • Do not mount the inverter in areas where flammable materials are stored. • Do not mount the inverter in areas where there is a risk of explosion Mount the inverter vertically or tilted backwards at a maximum angle of 15°...

  • Page 17: Mounting The Inverter With The Wall Bracket

    4.3 Mounting the inverter with the wall bracket Risk of injury when lifting the inverter, or if it is dropped! When mounting, at least two persons are needed, take into account that the inverter weighs approximately 58kg. Mounting procedure: 1. Use the wall bracket as a drilling template and mark the positions of the drill holes on the wall, drill 6 holes as required using a drill with Ø10 mm bit.
  • Page 18 SW10. Mount the inverter onto the wall bracket. If the inverter is to be transported and lifted with a crane, screw two eye bolts M10 (provided by installer) into the threads which are located on the top of the inverter. Installation and operating instructions...
  • Page 19 Check if the hook on the top of the wall bracket is in position after mounting the inverter onto the wall bracket. 4. Secure the inverter to the wall bracket using four M5 screws on both sides to prevent the inverter from accidently slipping off. Screwdriver type: T25, Torque: 2.5Nm.

  • Page 20: Electrical Connection

    5 Electrical Connection 5.1 Safety Danger to life due to high voltages of the PV array! When exposed to sunlight, the PV array generates dangerous DC voltage which is present in the DC conductors and the live components of the inverter.
  • Page 21 Risk of injury due to electric shock! • The external protective earthing conductor is connected to the inverter’s protective earthing terminal through an AC terminal block, ensure the connection is reliable. • When connecting, connect the AC terminal block first to ensure the inverter earthing and then connect the DC inputs.

  • Page 22: System Layout Of Inverters Without Integrated Dc-Switch

    5.2 System layout of inverters without integrated DC-switch Local standards or codes may require that PV systems are fitted with an external DC-switch. The DC-switch must be able to safely disconnect the open-circuit voltage of the PV array plus a safety reserve of 20%. Every MPPT input must pass the DC-switch, so that it is isolated from the DC side of the inverter.

  • Page 23: Overview Of The Electrical Connection Area

    5.3 Overview of the electrical connection area Position Designation DC-switch (optional) DC connectors, input 1 DC connectors, input 2 COM 2 (for connecting the monitoring device) External protection earthing terminal COM 1 (for connecting the monitoring device) AC output Installation and operating instructions...

  • Page 24: Ac Connection

    5.4 AC connection Danger to life due to high voltages in the inverter! • Before establishing the electrical connection, ensure that the AC circuit-breaker is switched off. 5.4.1 Conditions for the AC connection Cable Requirements The grid connection is established using five conductors (L1, L2, L3, N, and PE). We recommend the following specifications for copper wire.
  • Page 25 The conductor cross-section should be dimensioned to avoid power loss in cables exceeding 1% of rated output power. The maximum cable lengths depend on the conductor cross-section as follows: Maximum cable length Conductor cross-section Zeverlution Pro 33K 10mm² 22 m 16mm² 36 m 25mm²...
  • Page 26 5.4.2 AC connection Damage to the inverter due to electrostatic discharge! • Touching electronic components can cause damage to or destroy the inverter through electrostatic discharge. • Ground yourself before touching any component inside. Damage to the seal of the cover by opening the cover of the inverter in sub-zero conditions! •...
  • Page 27 Loosen the screws of the lower cover! •During loosening the screws of the lower cover, it is not necessary to take off the screws, which can remain on the lower cover and will not fall off. Strip the cable insulation as follows: Strip the cable insulation by 80mm (as D shown), shorten L1, L2, L3 and N, and make them 5mm shorter than PE conductor.
  • Page 28 Insert the crimped conductors L1, L2, L3, N and PE into the corresponding AC terminals through the cable gland and tighten the screws on the terminal block, using a flat blade screwdriver (blade size: 1.0 x 5.5mm) with torque 3.0Nm. Five conductors must be inserted into the corresponding holes of the AC terminal block! Otherwise it may cause damages to the inverter.

  • Page 29: Earthing Protection

    5.4.3 Earthing protection If required, the grounding terminal at the right bottom of the inverter can be used to connect a second protective conductor or as equipotential bonding with a screwdriver (Type: T25), torque: 2.5Nm. Information on earthing components is shown in the table below: Information on grounding components：...

  • Page 30: Residual Current Protection

    5.4.4 Residual current protection The inverter is equipped with a residual current monitoring unit (RCMU) comprising a differential current sensor and relevant detecting circuits, which fulfills the requirements of DIN VDE 0100-712 (IEC60364-7-712:2002). Therefore an external residual current device (RCD) is not required. If an external RCD needs to be installed because of local regulations, an RCD type A or type B can be installed as an additional safety measure.

  • Page 31: Ac Circuit Breaker

    Derating of the AC circuit breaker rating may be necessary due to self-heating or if exposed to heat. The maximum output current of the inverters can be found in the following table. Type Zeverlution Pro 33K Max. output current Recommended fuse type gL/gG or comparable automatic circuit breaker rating...

  • Page 32: Dc Connection

    5.5 DC connection Danger to life due to high voltage in the inverter! • Before connecting the PV generator, ensure that the DC switch is switched off and that it cannot be reactivated. • Do not disconnect the DC connectors under load. 5.5.1 Conditions for the PV generator (DC) •...

  • Page 33: Assembling The Dc Connectors

    5.5.2 Assembling the DC connectors Assemble the DC connectors as described below. Observe the correct polarity. The DC connectors are marked with the symbols "+" and " − ". Cable requirements： The cable must be of type PV1-F, UL-ZKLA or USE2 and comply with the following properties: External diameter: 5 mm to 8 mm ...
  • Page 34 Press the clamping bracket down until it audibly snaps into place. Ensure that the cable is correctly positioned: Result Measure If the stranded wires are visible in the • Proceed to step 5. chamber of the clamping bracket, the cable is correctly positioned. If the stranded wires are not visible in •...

  • Page 35: Disassembling The Dc Connectors

    5.5.3 Disassembling the DC connectors Danger to life due to high voltages on DC conductors! When exposed to sunlight, the PV array generates dangerous DC voltage which is present in the DC conductors. Touching the DC conductors can lead to lethal electric shocks. •...
  • Page 36 4. Release the clamping bracket. To do so, insert a flat-blade screwdriver (blade width: 3.5 mm) into the clamping bracket and lever out. 5. Remove the cable. Installation and operating instructions...

  • Page 37: Connecting The Pv Array

    5.5.4 Connecting the PV array The inverter can be destroyed by overvoltage! If the voltage of the PV module exceeds the maximum DC input voltage of the inverter, it can be destroyed due to overvoltage. All warranty claims become void. •...
  • Page 38 Damage to the inverter due to moisture and dust penetration! Seal the unused DC inputs with sealing plugs so that moisture and dust cannot penetrate the inverter. The inverter is only properly sealed when all the unused DC inputs are closed with sealing plugs.

  • Page 39: Communication

    6 Communication 6.1 Monitoring system The Zeverlution Pro 33K inverter is equipped with RS485 interfaces for external communication. Monitoring of multiple inverters can be achieved by connecting multiple inverters in series onto a RS485 bus, and eventually to ZeverManager. The overall length of the network cable should not exceed 1000m.

  • Page 40: Communication Connection

    For detailed information, please refer to ZeverManager user manual. CAT-5 with shield or higher leveled cable is required as the communication cable RS485 between inverter and ZeverManager. Assignment of pins on both ends of the cable shall comply with EIA/TIA568A or 568B standard. It shall be UV resistant if used outdoors. 6.2 Communication Connection 6.2.1 Communication Overview The inverter has two communication modes: RS485-HD and RS422.

  • Page 41: Connection Type For Rs485-Hd

    6.2.2 Connection type for RS485-HD Move slide switch CN901 to the position RS485-HD when using RS485-HD communication type, as shown in the figure below. Installation and operating instructions...
  • Page 42 When RJ45 is employed as the communication port for RS485-HD, the pin assignment of RJ45 is as follows: Pin1------- RS485_A Pin2------- RS485_B Pin3------- NC Pin4------- GND Pin5------- GND Pin6------- NC Pin7------- +7V Pin8------- +7V When the terminal block is employed as the communication port for RS485-HD, the pin distribution of terminal block is as follows: cable 485 pin of terminal block...
  • Page 43 When connecting one inverter, you need to connect the terminal resistance to the bus by switching CN909 to the ON position as shown in the figure below (Switch CN909 to ON, CN910 to OFF): When connecting multiple inverters, please move the terminal resistance slide switch (CN909) on the inverter which at the end of the bus to ON and all switch resistance slide switches of the inverters in between to OFF as shown in the figure below:...

  • Page 44: Connection Type For Rs422

    6.2.3 Connection type for RS422 Firstly, switch the slide switch CN901 to RS422 as shown in the figure below: Ports except port RJ45 are not allowed to be connected when employing RS422 communication mode. The pin information for RJ45 interface is shown in the table below: Pin1------- TX_RS485A Pin2------- TX_RS485B Pin3------- RX_RS485A...
  • Page 45 Damage to the inverter due to electrostatic discharge! Ground yourself before touching any component inside the inverter to avoid damage to the components inside the inverter by electrostatic discharge. When Connecting a single inverter, you shall set the terminal resistance of the both the slide switches CN909 and CN910 to ON as shown in the figure: When connecting multiple inverters, you shall connect the matched resistance at the bus terminal.
  • Page 46 Inverter in the Middle Inverter at the end of bus Damage to the inverter due to moisture and dust penetration! Make sure the waterproof connectors of the communication interface are securely tightened. Connecting procedure for RJ45 connection: Loosen the swivel nut of M25 cable gland for COM1, take out the filler plug in the sealing insert: Installation and operating instructions...
  • Page 47 Guide the network cable through the cable gland and connect it to the RJ45 socket on the communication board. A cable tie can be used to prevent the network cable from loosening. Tighten the cable gland swivel nut of (SW29) by hand. ●...

  • Page 48: Updating The Firmware Via Rj45

    RJ45 socket. 6.4 Communication with a third party monitoring equipment Zeverlution Pro 33K supports communication with third party monitoring equipment such as Metecontrol, Solar-Log etc. For detailed operation method please refer to operation manual of the corresponding third party monitoring equipment.

  • Page 49: Commissioning

    7 Commissioning Risk of injury due to incorrect installation! We strongly recommend carrying out preliminary checks before commissioning to avoid possible damage to the unit caused by faulty installation. 7.1 Electrical checks Danger to life due to the presence DC-Voltage! •...

  • Page 50: Mechanical Checks

    7.2 Mechanical checks Carry out the main mechanical checks to ensure the IP protection level of the inverter: Ensure that the lower cover has been securely screwed in place. Use sealing caps for tight sealing of unused DC input connectors. Make sure the RS485/RS422 connection has been connected securely.

  • Page 51: Disconnecting The Inverter From Voltage Sources

    8 Disconnecting the Inverter from Voltage Sources Danger to life due to high voltages! The capacitors in the inverter take 5 minutes to discharge. • Wait 5 minutes before opening the cover. Before performing any work on the inverter, disconnect it from all voltage sources as described in this section.

  • Page 52: Operating

    9 Operating 9.1 Overview of the control panel The inverter is equipped with a control panel which includes a liquid crystal display (LCD), three LED indicators and four touch sensing control buttons. You can view the data and set the parameters of the inverter using the buttons on the LCD display. Description Display ▲...

  • Page 53: Led Indicators

    9.2 LED indicators The inverter is equipped with three LED including “green”, “red” and “bicolor” which provide information about the various operating status of the inverter as follows. Green LED: The green LED is lit when the inverter is operating normally. Red LED: The red LED is lit when the inverter has stopped feeding power into the grid due to a fault.

  • Page 54: Display Messages

    9.3 Display messages Along with the various operating states, various messages maybe shown on the display for details, see the following table. Status Error Description Causes code Initial PV voltage is between Min. DC input Waiting voltage and start-up DC input voltage of the inverter.
  • Page 55 The residual current exceeds the permitted Ground Fault upper limit. The voltage of the strings exceeds the PV Overvoltage permitted upper limit. The PV generator’s insulation resistance to earth is below the permitted value, or the ISO Fault electrical insulation inside the inverter has failed.

  • Page 56: Display

    9.4 Display 9.4.1 Overview of menu structure The diagram is a diagram that shows the switching relations between all pages on the LCD. Installation and operating instructions...

  • Page 57: Initial Page

    9.4.2 Initial page When the inverter starts up, the LCD will first display an initial page that shows the current safety standard information of the inverter. The page will display for about 5 seconds and then jump to the home page automatically. Country data set DE VDE-AR-N 4105 9.4.3 Unlocking page...

  • Page 58: Operation Information

    Description Date& Time Output power Daily power generation Total power generation Error code(*), for details see article 9.3 Checking countdown Operating status: waiting, operating, fault Trend map of output power from 4:00 to 22:00 Load limit Enable Indication (*) The operating temperature of the inverter can’t be lower than -25° C. The inverter will goes into fault mode and stops power generation when the temperature is lower than -25°...

  • Page 59: Main Menu

    Phase, leading or lagging Running time DC input voltage DC input power 1 DC input current DC input power 2 9.4.6 Main menu Press the " " button to enter the main menu from the home page. Press the "▼" or "▲" button to select the menu item. Press the "...

  • Page 60: Event Log

    Statistics 09/11/2013 Day Statistics Days Etoday Months Peak Runtime Years 9.4.8 Event log Press the "▲" or "▼" button to select the "Event Log" item of main menu and press the " " button to confirm. Press the "▲" or "▼" button to check the fault messages. Press the "ESC"...

  • Page 61: Language Setting

    Date&Time DD/MM/YYYY hh:mm 2013 19/11/2013 12:23 9.4.10 Language setting Enter the sub-menu “Basic Setting” and press the "▼" or "▲" button to select the "Language Setting" and press the " " button to confirm. Use the "▲" or "▼" to choose the language. Press the "...

  • Page 62: Safety Regulations Setting

    9.4.12 Safety regulations setting Enter the sub-menu “Advanced Setting” and press the " " button to input the password. The password is required if you want to change some parameters. Please get the correct password from the service engineer. Enter the correct password and "...

  • Page 63: Overload Setting

    9.4.13 Overload Setting Enter the sub-menu “Advanced Setting” and press the "▼" or "▲" button to select the "Overload Setting" and press the " " button to set the status. Use the "▲" or "▼" to choose “Enable” or “Disable”. Press the "...

  • Page 64: Pv Mode Setting

    Reactive power control Reactive power control： Disable Enable 9.4.16 PV Mode Setting Enter the sub-menu “Advanced Setting” and press the "▼" or "▲" button to select the "PV Mode Setting" and press the " " button to set the status. Use the "▲"...

  • Page 65: Communication Setting

    9.4.18 Communication Setting Enter the sub-menu “Communication Setting” and press the "▼" or "▲" button to select the address and press the " " button to set the modbus communication address. Use the "▲" or "▼" to choose the address. Press the "...

  • Page 66: Clear The Historical Data

    9.4.20 Clear the historical data Enter the "Advanced Setting" page, enter the correct password, and enter the data clear page. Clear Data? Press the " " button to confirm to clear the historical data. Press the “ESC” button to cancel. Wait a Second...

  • Page 67: Technical Data

    10 Technical data 10.1 DC input data Type Zeverlution Pro 33K Rated DC input power(Pdc.r) 34000 W Max. recommended DC input power 40800 W Max. DC input voltage 1000 V Rated DC input voltage 620 V MPP voltage range 270 … 950 V Full load MPP voltage range 500 …...

  • Page 68: Ac Output Data

    10.2 AC output data Type Zeverlution Pro 33K Power connection Three phase Rated output power 30000W Max. output active power 33000W Max. output apparent power 33000VA 3/N/PE, 220/380V Rated grid voltage 3/N/PE, 230/400V 3/N/PE, 240/415V AC voltage range 160 V to 300 V...

  • Page 69: Safety Protection

    10.3 Safety protection Type Zeverlution Pro 33K Integrated Internal overvoltage protection DC insulation monitoring Integrated DC feed-in monitoring Integrated Grid monitoring Integrated Residual current monitoring Integrated (according to EN 62109-2) Integrated (Three-phrase monitoring) Islanding protection EMC immunity EN61000-6-1, EN61000-6-2 EMC emission...

  • Page 70: General Data

    10.4 General data Type Zeverlution Pro 33K Net weight 58 Kg Dimensions (L× W× D) 710× 510× 260 mm Mounting environment Indoor and Outdoor Mounting recommendation Wall bracket Operating temperature range -25… +60℃ Max. permissible value for relative humidity 100% ( non-condensing ) Max.

  • Page 71: Efficiency

    10.5 Efficiency The operating efficiency is shown for the three input voltages (Vmppmax, Vdc,r and Vmppmin) graphically. In all cases the efficiency refers to the standardized power output (Pac/Pac,r). (according to EN 50524 (VDE 0126-13): 2008-10, cl. 4.5.3). Notes: Values are based on rated grid voltage, cos(phi) = 1 and an ambient temperature of 25℃.

  • Page 72: Power Reduction

    10.6 Power reduction In order to ensure inverter operation under safe conditions, the device may automatically decrease power output. Power reduction depends on many operating parameters including ambient temperature and input voltage, grid voltage, grid frequency and power available from the PV modules.

  • Page 73: Tools And Torque

    10.7 Tools and torque Tools Object Torque Screws for the lower cover Screws for second protective Trox screwdriver, T25 grounding connection 2.5Nm Screws for connecting the inverter and wall bracket Flat-head screwdriver, Screw terminal block for AC cable 3.0Nm blade size: 1.0× 5.5mm Flat-head screwdriver, Sunclix DC connector blade width: 3.5mm...

  • Page 74: Troubleshooting

    11 Troubleshooting When the PV system does not operate normally, we recommend the following solutions for quick troubleshooting. If a fault happens, the red LED will light up. The corresponding causes are described in Section 9.3 "Display Messages". The corresponding corrective measures are as follows: Object Error Corrective measures...
  • Page 75 •Check the fuse and the triggering of the AC circuit breaker in the distribution box. •Check grid voltage, grid usability. •Check AC cable, grid connection on the inverter. If this fault is still being shown, please call service. Resumable Fault •Check the grid voltage and grid connection on the inverter.

  • Page 76: Maintenance

    12 Maintenance Normally, the inverter needs no maintenance or calibration. Regularly inspect the inverter and the cables for visible damage. Disconnect the inverter from all power sources before cleaning. Clean the enclosure and display with a soft cloth. 12.1 Replace the fuse Danger to life due to high voltage! The capacitors in the inverter take 5 minutes to discharge.

  • Page 77: Cleaning The Contacts Of The Dc Switch

    12.2 Cleaning the contacts of the DC switch Clean the contacts of the DC switch annually. Perform cleaning by cycling the switch to “1” and “0” positions 5 times. The DC switch is located at the lower left of the enclosure.
  • Page 78 Damage to the fan due to compressed air! • Clean the fan only with a soft brush, a paint brush, or a damp cloth. This device is equipped with two fans located on the right side. If the fan does not run normally or makes any unusual noise, clean the fans or replace the broken fans.

  • Page 79: Recycling And Disposal

    If these conditions are not met, Zeversolar has the right to refuse to provide with the relevant warranty service.

  • Page 80: Contact

    Please keep the warranty card at hand. If you need any service during warranty, you need to show the copy of invoice and the warranty card, you also need to keep the electrical label of the inverter clean. If not, Zeversolar has the right to reject providing service.

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