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ELECTRICAL CONNECTION 

vacon • 15 

24-hour  support:  +358 (0)201 212 575 •  Email:  [email protected] 

 

5.

 

ELECTRICAL CONNECTION 

 

 

Only a competent electrician is allowed to install the electrical connection. The 

equipment uses dangerous voltages.  

There is danger of electrical shock which may cause death or serious injury. 

 

 

5.1

 

Electrical diagrams 

5.1.1

 

NXV0010 to NXV0030 

R<

-BE1

-RF5

340...800VDC, 30A

3Ph 400V 50Hz, 22A

-QA1

4

-TB2

3

2

3

-RA1

3

-CA1

-QA5

-QA2

3

-FC4

3

-FA1

3

-PE1

-FCP

2

-TA0

3+

PE

3

-PE1

+01

Figure 5-1. Electrical diagram for NXV0010 to NXV0030 

 

 

5.1.2

 

NXV0040 to NXV0050 

R<

-BE1

-RF5

340...800VDC, 100A

3Ph 400V 50Hz, 72A

-TB2

3

2

3

-RA1

3

-CA1

-QA5

-FC4

3

-FA1

3

-PE1

-FCP

2

-TA0

3+

PE

3

-PE1

+01

-QB1

-FC3

2

-QA2

3

I>

 

Figure 5-2. Electrical diagram for NXV0040 to NXV0050 

Содержание NX 8000 Solar Series

Страница 1: ...user s manual 3 phase photovoltaic inverters for connection to mains supply drives nxv0010 to nxv0100 ...

Страница 2: ...RY 7 3 1 Type designation code 7 3 2 Lifting the unit out of the transport packaging 7 3 3 Storage 8 3 4 Maintenance 9 3 5 Warranty 9 4 INSTALLATION 10 4 1 Free space around the cabinet 12 4 2 Fixing the unit 13 5 ELECTRICAL CONNECTION 15 5 1 Electrical diagrams 15 5 2 Cabling 17 5 3 Control connections 22 5 4 Option board OPTC2 RS 485 29 5 5 Option board OPTD7 Line voltage measurement board 30 5 ...

Страница 3: ...OWED TO CARRY OUT THE ELECTRICAL IN STALLATION RISK OF ELECTRIC SHOCK The solar inverter VACON 8000 SOLAR has been designed to be installed in enclosed places It shall be protected against harsh weather conditions The solar inverter VACON 8000 SOLAR can only be opened by qualified technicians Inside the inver ter module there is no element which can be fixed or adjusted by the user There is a seri...

Страница 4: ...ve equipment PPEs must be used Helmet Safety goggles for electrical risk Safety footwear Electrically resistant gloves adequate for the voltage Protective gloves against mechanical risk Access to the photo voltaic field is strictly prohibited 1 4 Earthing and earth fault protection CAUTION The Vacon 8000 Solar inverter must always be earthed with an earthing conductor connected to the earthing ter...

Страница 5: ... not form a part of the supply cable or cable enclosure shall in any case be not less than 2 5 mm2 if mechanical protection is provided or 4 mm2 if mechanical protection is not provided For cord connected equipment provisions shall be made so that the protective earthing conductor in the cord shall in the case of failure of the strain relief mechanism be the last conductor to be interrupted Howeve...

Страница 6: ...Hz 0 5 Cos φ 0 99 for output 20 100 of Pn Harmonic distortion 2 5 for output 30 of power Consumption at night 5W NXV0010 NXV0030 30 W NXV0040 NXV0100 Maximum efficiency 94 96 Ambient temperature 10 40 C 1 derating for each degree up to 50 C required Relative humidity 95 no condensation Protection IP21 Display Alfanumeric display per unit with two lines of 14 characters leds indicating functioning ...

Страница 7: ...d environment and rated voltage less than 1000V T fulfils standard EN61800 3 2004 when used in IT networks Option boards each slot is represented by two characters where A basic I O board B expander I O board C fieldbus board D special board 00 Not used Figure 3 1 Type designation code 3 2 Lifting the unit out of the transport packaging Before unpacking the device check the correctness of delivery...

Страница 8: ...to be kept in store before use make sure that the ambient conditions are acceptable Storing temperature 40 70 C Relative humidity 95 no condensation The environment should also be free from dust If there is dust in the air the inverter should be well protected to make sure dust does not get inside it If the inverter is to be stored during longer periods the power should be connected to the inverte...

Страница 9: ...r cor rosion on terminals busbars and other surfaces 5 7 years Change cooling fans main fan fan of the LCL filter 5 10 years Change DC bus capacitors if DC voltage ripple is high Table 3 1 Proactive maintenance schedule 3 5 Warranty Only manufacturing defects are covered by the warranty The manufacturer assumes no responsibil ity for damages caused during or resulting from transport receipt of the...

Страница 10: ...ion instructions included in this manual The IP21 protection of the VACON 8000 SOLAR inverter only allows for installation in enclosed places Note the locations of some essential components of the inverters in pictures below PE terminals 8 pcs Opening for cables DC terminals DC terminals PE busbar L1 L2 L3 Control unit RFI filter Figure 4 1 Pricipal drawing of inverter modules NXV0010 to NXV0030 w...

Страница 11: ...ce The equipment has to be installed in a place where the room temperature is between 10ºC and 40ºC Lower temperatures prevent the equipment from starting up and higher temperatures limit the output power The buzzing noise occurring during the operation of the equipment is normal Do not install the equipment in an occupied dwelling NOTE It is important to prevent small particles falling onto the d...

Страница 12: ...ng air required is indicated in the table below Also make sure that the tempera ture of the cooling air does not exceed the maximum ambient temperature of the inverter 200 mm 800 mm 25 mm Figure 4 3 Space to be left free above left and in front of right the cabinet Type Cooling air required m3 h NXV0010 300 NXV0015 300 NXV0020 425 NXV0025 425 NXV0030 425 NXV0040 700 NXV0050 700 NXV0080 800 NXV0100...

Страница 13: ...inet can be fixed to the floor alone or to the floor and the back wall 4 2 1 Fixing the unit to floor alone For the floor only mounting the fixing points in all four bottom corners of the cabinet shown in Fig ure 4 4 below must be used BOTTOM VIEW FRONT REAR Figure 4 4 Fixing the cabinet to the floor only ...

Страница 14: ...mp Flip it and refix the screws as shown in Figure 4 5 2 Then bolt the cabinet to the floor at the fixing points on the bottom front side see Figure 4 5 BOTTOM VIEW FRONT REAR Rear iron clamp Figure 4 5 3 Use the fixing points at the top rear side of the cabinet to bolt it to the back wall See Figure 4 6 TOP VIEW REAR FRONT TOP VIEW FRONT Figure 4 6 Welding of the cabinet might risk sensitive comp...

Страница 15: ...which may cause death or serious injury 5 1 Electrical diagrams 5 1 1 NXV0010 to NXV0030 R BE1 RF5 340 800VDC 30A 3Ph 400V 50Hz 22A QA1 4 TB2 3 2 3 RA1 3 CA1 QA5 QA2 3 FC4 3 FA1 3 PE1 FCP 2 TA0 3 PE 3 PE1 01 Figure 5 1 Electrical diagram for NXV0010 to NXV0030 5 1 2 NXV0040 to NXV0050 R BE1 RF5 340 800VDC 100A 3Ph 400V 50Hz 72A TB2 3 2 3 RA1 3 CA1 QA5 FC4 3 FA1 3 PE1 FCP 2 TA0 3 PE 3 PE1 01 QB1 FC...

Страница 16: ...01 2121 Fax 358 201 212 205 5 1 3 NXV0080 to NXV0100 R BE1 RF5 340 800VDC 200A 3Ph 400V 50Hz 145A TB2 3 2 3 RA1 1 3 CA1 QA5 FC4 3 FA1 3 PE1 FCP 2 TA0 3 PE 3 PE1 01 QB1 FC3 2 RA1 2 3 QA2 3 I Figure 5 3 Electrical diagram for NXV0080 to NXV0100 ...

Страница 17: ...to which all the inverter s metallic parts are connected This connection terminal must be connected to earth Remember to earth the PE busbar See Table 5 1 on page 18 5 2 2 Connection to mains The terminals of the power supply can be reached through the bottom part of the equipment The solar inverter has three connection terminals to which mains cables are connected Run the cables through the openi...

Страница 18: ... mm2 AC DC PE AC DC PE NXV0010 1 5 6 10 50 95 240 NXV0015 1 5 6 10 50 95 240 NXV0020 1 5 6 10 50 95 240 NXV0025 1 5 6 10 50 95 240 NXV0030 1 5 6 10 50 95 240 NXV0040 10 10 10 240 240 240 NXV0050 10 10 10 240 240 240 NXV0080 10 10 10 240 240 240 NXV0100 10 10 10 240 240 240 Table 5 1 Minimum and maximum cable cross sections The tightening torques of power connections are given in tables below Drive...

Страница 19: ...e respective terminals on the drive through the bottom of the supply unit see Figure 5 5 and Figure 5 6 Check for the cable sizes and the appropriate number of cables in tables on page 20 In drives NXV0050 and NXV0100 always connect the two cables on both sides of the terminal bar see Figure 5 6 Connect the positive pole of the photovoltaic panel to the terminal marked with and the negative pole t...

Страница 20: ... 2x95mm2 NXV0040 2x70mm2 2x 2x95mm2 4x 2x185mm2 NXV0050 2x95mm2 2x 2x95mm2 4x 2x185mm2 NXV0080 2x 2x70mm2 4x 2x95mm2 4x 2x185mm2 NXV0100 2x 2x95mm2 4x 2x95mm2 4x 2x185mm2 Table 5 3 Panel input cable dimensions Model Minimum cross section Recommended cross section Maximum cross section NXV0010 3x1 5mm2 3x16mm2 3x50mm2 NXV0015 3x1 5mm2 3x25mm2 3x50mm2 NXV0020 3x1 5mm2 3x25mm2 3x50mm2 NXV0025 3x1 5mm...

Страница 21: ...NXV0020 16mm2 NXV0025 16mm2 NXV0030 16mm2 NXV0040 25mm2 NXV0050 25mm2 NXV0080 35mm2 NXV0100 35mm2 Table 5 5 Panel earthing cable dimensions The minimum cable cross section is calculated in compliance with loading capacity of cables The recommended cross section is calculated in compliance with 1 voltage drop for a cable 100 m in length ...

Страница 22: ...ide the control unit of the Vacon 8000 Solar inverter see Figure 5 8 Four different board types can be used with the inverter A1 A2 B5 C2 and D7 The control connections of these boards are described below For more detailed information on the boards you can find in Vacon Option Board Manual Figure 5 8 Board slots in control unit ...

Страница 23: ...PT A1 option board Description Standard I O board with digital inputs outputs and analogue inputs outputs Allowed slots A Type ID 16689 Terminals Two terminal blocks coded mounting of blocks in wrong order prevented terminals 1 and 12 Screw terminals M2 6 Jumpers 4 X1 X2 X3 and X6 See Figure 5 10 Board parameters Yes see page 26 ...

Страница 24: ...nically connected to terminal 12 7 GND Ground for reference and controls Galvanically connected to terminals 13 19 8 DIN1 DigIN A 1 Digital input 1 Common CMA Ri min 5kΩ 9 DIN2 DigIN A 2 Digital input 2 Common CMA Ri min 5kΩ 10 DIN3 DigIN A 3 Digital input 3 Common CMA Ri min 5kΩ 11 CMA Digital input common A for DIN1 DIN2 and DIN3 Connection by default to GND Selection with jumper block X3 see pa...

Страница 25: ...ode AI1 mode Voltage input 0 10V AI1 mode Voltage input 0 10V differential AI1 mode Voltage input 10 10V Jum per block X2 AI2 m ode AI2 mode 0 20mA Current input AI2 mode Voltage input 0 10V AI2 mode Voltage input 0 10V differential AI2 mode Voltage input 10 10V Jum per block X3 CMA and CMB grounding CMB connected to GND CMA connected to GND CMB isolated from GND CMA isolated from GND CMB and CMA ...

Страница 26: ...5 OPTA1 parameters Number Parameter Min Max Default Note 1 AI1 mode 1 5 3 1 0 20mA 2 4 20mA 3 0 10V 4 2 10V 5 10 10V 2 AI2 mode 1 5 1 1 0 20mA 2 4 20mA 3 0 10V 4 2 10V 5 10 10V 3 AO1 mode 1 4 1 1 0 20mA 2 4 20mA 3 0 10V 4 2 10V Table 5 7 OPTA1 board related parameters ...

Страница 27: ... Jumpers None Board parameters None I O terminals on OPTA2 Terminal Parameter reference on keypad and NCDrive Technical information 21 22 23 RO1 normal closed RO1 common RO1 normal open DigOUT B 1 Relay output 1 NO NC Switching capacity 24VDC 8A 250VAC 8A 125VDC 0 4A Min switching load 5V 10mA 24 25 26 RO2 normal closed RO2 common RO2 normal open DigOUT B 2 Relay output 2 NO NC Switching capacity ...

Страница 28: ...DigOUT X 1 Switching capacity 24VDC 8A 250VAC 8A 125VDC 0 4A Min switching load 5V 10mA 25 26 RO2 common RO2 normal open DigOUT X 2 Switching capacity 24VDC 8A 250VAC 8A 125VDC 0 4A Min switching load 5V 10mA 28 29 RO3 common RO3 normal open DigOUT X 3 Switching capacity 24VDC 8A 250VAC 8A 125VDC 0 4A Min switching load 5V 10mA Table 5 9 OPTB5 I O terminals Note This expander board can be placed i...

Страница 29: ...nnector Description NC 1 No connection VP 2 Supply voltage plus 5V RxD TxD N 3 Receive Transmit data A RxD TxD P 4 Receive Transmit data B DGND 5 Data ground reference potential for VP You can use this pin 1 to bypass the cable shield to the next slave Table 5 10 OPTC2 bus connector signals X4 X1 Bus connector Jumpers Interface board connector Grounding plate 1 2 3 4 5 ...

Страница 30: ...amming tool The OPTD7 board is delivered with the transformer which is suitable for voltage range 380V 690V Please note that the transformer can not be used with the pulse width modulated PWM voltage in put It is possible to use custom built transformer when the input voltage to be measured is not within the above voltage range The transformation ratio parameter then can be adjusted as per the tra...

Страница 31: ...Transformer ratio Primary secondary 60 1 Transformer second ary output voltage range 14V rms Between the terminals L1 L2 L3 Input impedence L1 L2 50kOhm L1 L3 25kOhm L2 L3 25kOhm L3 is internal virtual common Cable recommendation Max 1 5 mm2 shielded From transformer output to OPTD7 Measurement resolution 10 bit Voltage measurement Accuracy 0 2 Table 5 11 OPTD7 board specification ...

Страница 32: ...urrent A Nominal voltage V Braking capacity kA Acting behaviour Fuse size Suitable fuse type Cat nr by Ferraz Shawmut NXV0010 No fuses needed NXV0015 NXV0020 NXV0025 NXV0030 NXV0040 160 1200 100 gPV 121 DC121GPV12C160E NXV0050 200 1200 100 gPV 121 DC121GPV12C200E NXV0080 315 810 125 aR 71 DIN110 PC71UD13C315D1A NXV0100 400 810 125 aR 71 DIN110 PC71UD13C400D1A Table 5 12 Fuse selection suitable fus...

Страница 33: ...ly including the earth cable are correct ly connected Check that the main AC circuit breaker and possible auxiliary circuit breakers are connected and closed 3 Press the START button on the control panel Once these steps have been followed the inverter will automatically start when the voltage of solar panels exceeds the minimum wake up voltage 340 V DC provided that there is mains voltage The inv...

Страница 34: ... fault RUN The inverter is running Indicates the order of phases in the mains STOP Indicates that the inverter is not running READY Illuminated when DC level is OK In case of a fault the symbol will not light up Also signifies a valid license or trial time ALARM Indicates that the unit is running above a certain limit and issues an alarm FAULT Indicates that there are unsafe running conditions and...

Страница 35: ... shows a description of the fault see chapter Active Faults 6 1 3 Text lines The three text lines provide the user with information about the current location within the menu structure of the panel separate from information related to the operation of the unit Indication of the place in the panel it shows the menu symbol and number parameter etc Example M1 Menu 1 Display P1 3 Generated power Descr...

Страница 36: ...stop the inverter 6 1 5 Browsing the control panel Data on the control panel is arranged in menus and submenus Menus are used for example to dis play control signals and the measurements of reference values and faults shown The first menu level has menus from M1 to M7 and it is called Main menu The user can browse the main menu using the Browse push buttons up and down The chosen submenu can be ac...

Страница 37: ...inal DC voltage V1 6 DC link voltage 0 1000 V 1839 Filtered DC link voltage in Volt V1 7 Unit temperature 50 200 C 1109 Temperature of the unit in Celsius V1 8 AC voltage 0 1000 V 1709 AC voltage measured on the grid side of the main contactor by an external measurement circuit V1 9 AC frequency 60 60 Hz 1835 Grid frequency in Hz The sign indicates the phase order Can be monitored only when UNIT i...

Страница 38: ...here you were before the fault trip The fault is active until it is deleted with the Reset push button Normal state no faults 6 1 5 3 Fault history menu M5 The Fault history menu can be accessed from the Main menu pressing the Menu right Push button when the location indication M5 is visible on the first line of the panel display All faults are stored in the Fault history menu which can be browsed...

Страница 39: ... at least once a year Visually check the external condition of the inverter checking mainly the good condition of the door and its locking elements Visually check the internal condition of the inverter checking mainly that wires are correctly located wearing of isolation of wires lack of hot points on checking the color of terminals and isolations Check also for humidity and the correct fixing of ...

Страница 40: ... how to solve them THE SOLUTION FOR SOME OF THE PROBLEMS INDICATED HERE IMPLIES TO PER FORM CHECKING INSIDE THE INVERTER THE WIRES OF AC MAINS OR THE DC WIRES IN THE SOLAR PANELS THESE CHECKS HAVE TO BE CARRIED OUT TAKING THE INSTRUCTIONS IN CHAPTER 1 INTO ACCOUNT REPAIR WORK SHOULD ONLY BE CARRIED OUT BY A QUALIFIED TECHNICIAN THERE IS A RISK OF AN ELECTRIC SHOCK Fault code Fault Possible cause C...

Страница 41: ...e 11 Input phase supervision Input line phase is missing Check supply voltage fuses and cable 13 Frequency con verter under temperature Heatsink temperature is under 10 C 14 Frequency con verter over temperature Heatsink temperature is over 90 C Overtemperature warning is issued when the heatsink temperature exceeds 85 C Check the correct amount and flow of cooling air Check the heatsink for dust ...

Страница 42: ...tor near to you Please visit http www vacon com wwcontacts html 41 IGBT tempera ture IGBT Inverter Bridge overtemperature protection has detected too high a short term overload current Check loading 44 Device changed different type Option board or power unit changed New device of different type or different rating than the previous one Reset Set the option board parameters again if option bard cha...

Страница 43: ...n limit Check AC Voltage 74 FreqOverLimit AC frequency on line side is above the max limit Check AC Frequency 75 FreqUnderLimit AC frequency on line side is below the min limit Check AC Frequency 76 DC Ground Warning DC Insulation measurement signal has gone above the warning limit Check DC Insulation 77 DC Ground Fault DC Insulation measurement signal has gone above the fault limit Check DC Insul...

Страница 44: ...Vacon distributor ...

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