Vacon 8000 solar User Manual

vacon 8000 solar

power inverters

3-phase photovoltaic inverters

user manual

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INDEX

Document: DPD00728B

1. SAFETY ............................................................................................................. 1

1.1 Danger and warning symbols used in this manual ........................................................... 1

1.2 Symbols and warning marks used in the product............................................................. 1

1.3 Safety rules ........................................................................................................................ 2

1.4 Earthing and earth fault protection ................................................................................... 3

2. TECHNICAL SPECIFIATIONS ............................................................................. 6

2.1 Inverter ratings .................................................................................................................. 6

2.2 Technical data .................................................................................................................... 7

3. RECEIPT OF DELIVERY...................................................................................... 8

3.1 Type designation code........................................................................................................8

3.2 Lifting the unit out of the transport packaging.................................................................. 9

3.3 Storage ............................................................................................................................. 11

3.4 Maintenance..................................................................................................................... 12

3.5 Warranty........................................................................................................................... 12

4. INSTALLATION ............................................................................................... 13

4.1 Free space around the cabinet ........................................................................................ 16

4.2 Fixing the unit to the floor................................................................................................ 17

4.3 Fixing cabinets to each other........................................................................................... 18

5. ELECTRICAL CONNECTION ............................................................................. 22

5.1 Electrical diagrams..........................................................................................................22

5.2 Cabling.............................................................................................................................. 23

5.2.1 Earth connection .............................................................................................................. 23

5.2.2 Connection to mains ........................................................................................................23

5.2.3 Connection to photovoltaic panels................................................................................... 25

5.3 Fuse selection .................................................................................................................. 28

5.3.1 Fuses for inverters........................................................................................................... 28

5.3.2 Fuse for charging............................................................................................................. 28

5.3.3 Fuse for EMC capacitors.................................................................................................. 28

5.3.4 Fuse for measuring.......................................................................................................... 29

5.4 Control connections ......................................................................................................... 29

5.4.1 Basic board OPTA1........................................................................................................... 30

5.4.2 Option board OPTA2 .........................................................................................................33

5.4.3 Option board OPTB5.........................................................................................................34

5.5 Option board OPTC2 (RS-485).......................................................................................... 35

5.6 Option board OPTD2......................................................................................................... 36

5.7 Option board OPTD7 (Line voltage measurement board) ............................................... 40

5.8 Option board OPTCI (Modbus/TCP board) ....................................................................... 42

6. START UP ....................................................................................................... 43

7. THE SOLAR MULTIMASTER APPLICATION...................................................... 44

8. CONTROL INTERFACES .................................................................................. 45

8.1 Screens and Navigation ................................................................................................... 45

8.2 Main view.......................................................................................................................... 46

8.2.1 System Activation............................................................................................................. 46

8.2.2 System status................................................................................................................... 47

8.2.3 Total Power ...................................................................................................................... 48

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8.2.4 Total energy counter........................................................................................................ 48

8.2.5 DC Bus Voltage................................................................................................................. 48

8.2.6 Main View Units ................................................................................................................ 49

8.2.7 Event Banner.................................................................................................................... 49

8.2.8 Start Cond......................................................................................................................... 50

8.3 Events ............................................................................................................................... 51

8.4 System Trends.................................................................................................................. 52

8.4.1 System Total..................................................................................................................... 52

8.4.2 DC Insulation Monitoring ................................................................................................. 53

8.4.3 Energy tables.................................................................................................................... 53

8.5 Unit View........................................................................................................................... 55

8.5.1 Master button................................................................................................................... 57

8.5.2 Reset button ..................................................................................................................... 57

8.5.3 Unit Trend......................................................................................................................... 57

8.5.4 Unit event ......................................................................................................................... 58

8.6 Settings............................................................................................................................. 58

8.6.1 Settings 1.......................................................................................................................... 59

8.6.2 Settings 2.......................................................................................................................... 63

8.6.3 Settings 3 ......................................................................................................................... 64

8.6.4 Settings 4.......................................................................................................................... 66

8.6.5 Settings 5.......................................................................................................................... 66

9. INVERTER CONTROL KEYPAD......................................................................... 68

9.1 Indicators of the inverter condition.................................................................................. 68

9.2 State leds.......................................................................................................................... 69

9.3 Text lines .......................................................................................................................... 69

9.4 Panel push buttons .......................................................................................................... 69

9.4.1 Description of push buttons............................................................................................. 69

9.5 Browsing the control panel.............................................................................................. 70

9.5.1 Monitoring menu.............................................................................................................. 70

9.5.2 Active faults menu............................................................................................................ 72

9.5.3 Fault history menu (M5)................................................................................................... 72

10. MAINTENANCE AND TROUBLESHOOTING ...................................................... 75

10.1 Maintenance..................................................................................................................... 75

10.2 Troubleshooting ............................................................................................................... 75

11. APPENDIX A SINGLE LINE EXAMPLES............................................................ 82

12. APPENDIX B GROUNDING OVERVIEW .............................................................85

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1. SAFETY

1.1 Danger and warning symbols used in this manual

This manual contains clearly marked cautions and warnings which are intended for your personal
safety and to avoid any unintentional damage to the product or connected appliances.

Please read the information included in cautions and warnings carefully.

The cautions and warnings are marked as follows:

1.2 Symbols and warning marks used in the product

The product carries some additional symbols and marks. The meanings of these are as follows:

= Dangerous voltage! Risk of electric shock

= General warning! Risk of equipment damage

= Dangerous voltage! Risk of electric shock

= See User’s Manual

= Caution! Risk of electric shock! Energy storage timed discharge: 5 minutes

= Caution, risk of hearing damage, wear hearing protection

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1.3 Safety rules

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 in­vert-er module, there is no element which can be fixed or adjusted by the user.

Even when the solar inverter has been disconnected from mains and solar panels, wait until the
con-trol panel switches off. After this, it is recommended that you wait at least 5 minutes before
opening, and /or making any kind of alteration or connection to, the device.

Check that there is no voltage present before handling and performing any kind of work on the de­vice. To verify the absence of voltage, type III measurement elements (1000 volts) must be used.

Do not perform any measurement or test when the VACON 8000 SOLAR is connected to mains or
solar panels.

Do not perform any kind of dielectric strength test on the VACON 8000 SOLAR. Unless the appropri­ate process is followed, performing this test may damage the inverter module.

Appropriate personal protective equipment (PPEs) must be used:

•Helmet

• Safety goggles for electrical risk

• Safety footwear

• Hearing protection

• Electrically resistant gloves adequate for the voltage

• Protective gloves against mechanical risk

ONLY A COMPETENT ELECTRICIAN IS ALLOWED TO CARRY OUT THE ELECTRICAL
INSTALLATION! RISK OF ELECTRIC SHOCK!

There is a serious risk of electrick shock, even after the device has been discon­nected from the mains supply or solar panels. This electrick shok may cause death
or serious injury.

If the short circuit current of the grid is higher than the short circuit withstanding
capability of the QA2, additional circuit breaker must be installed. if the possible
short circuit current at the grid point of connection is higher than the solar inverter’s
breaking capacity, additional current limiting device must be installed (see chapter
5,3).

If the equipment is used in a manner not specified by the manufacturer, the protec­tion provided by the equipment may be impaired.

Access to the photo-voltaic field is strictly prohibited!

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1.4 Earthing and earth fault protection

The Vacon 8000 Solar inverter must always be earthed with an earthing conductor connected to the
earthing terminal marked with .

The touch current of Vacon 8000 Solar exceeds 3.5mA AC. According to EN62109-1, one or more of
the following conditions for the associated protective circuit shall be satisfied:

A fixed connection and

a) the protective earthing conductor shall have a cross-sectional area of at least 10 mm

2

Cu or 16

mm

2

Al.

or

b) an automatic disconnection of the supply in case of discontinuity of the protective earthing con-
ductor. See chapter 4.

or

c) provision of an additional terminal for a second protective earthing conductor of the same cross­sectional area as the original protective earthing conductor.

The cross-sectional area of every protective earthing conductor which does 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 mm

2

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.

However, always follow the local regulations for the minimum size of the protective earthing
conductor.

CAUTION!

Table 1.

Cross-sectional area of phase

conductors

(S)

[mm

2

]

Minimum cross-sectional area of the corresponding

protective earthing conductor

S16

16 <

S35

35 <

S

S

16

S/2

The values above are valid only if the protective earthing conductor is made of the same metal as
the phase conductors. If this is not so, the cross-sectional area of the protective earthing conduc­tor
shall be determined in a manner which produces a conductance equivalent to that which
results from the application of this table.

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NOTE: Due to the high capacitive currents present in the AC drive, fault current protective switches
may not function properly.

Do not perform any voltage withstand tests on any part of Vacon 8000 Solar.

There is a certain procedure according to which the tests shall be performed.

Ignoring this procedure may result in damaged product.

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TECHNICAL SPECIFIATIONS vacon • 6

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2. TECHNICAL SPECIFIATIONS

2.1 Inverter ratings

Range of input voltages 410-800Vcc, 50/60 Hz, 3~

Inverter

type

Nom.
output
power

[kW]

Recom-

mended

max PV

power

[kW]

Max al-

lowed

PV
Isc

[A]

Max effi-

ciency

[%]

Max

Power

consump-

tion

at

night

[W]

Inverter

dimensions

[mm]

Inverter

weight

[kg]

Connection cabinet

[mm] (kg)

Incoming

Outgoing

AC-

cabinet

(optional)

NXV0125 125 150 353 96.8 0 800x2281x600 450

1

)

N/A

NXV0200 200 240 613 98.6 0 800x2281x600 645

1

)

N/A

NXV0400 400 480 1226 98.6 60 1600x2281x600 1220 600 (205) 600 (215)
NXV0600 600 720 1839 98.6 60 2400x2281x600 1830 600 (205) 600 (215)
NXV0800 800 960 2452 98.6 60 3200x2281x600 2440 800 (355) 600 (320)

NXV1000 1000 1200 3065 98.6 60 4000x2281x600 3050 800 (355) 600 (320)
NXV1200 1200 1440 3678 98.6 60 4800x2281x600 3660 800 (355) 600 (320)

Table 2. Power ratings, dimensions and weights

2

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2.2 Technical data

1

Inverter types NXV0125 and NXV0200 have an optional incoming connection box

Table 3. Technical data

DC Input

Range of input volt­ages

410...800 VDC

Maximum input volt­age

900 VDC

AC input

Mains voltage 3*280±10%

Galvanic isolation No

Frequency 50/60 Hz ±0,5%

Cos  >0.99, for output 20%-100% of Pn

Harmonic distortion <3% at Pn

Consumption at night 30W

Maximum efficiency 98.6%

Ambient temperature

-10...+40ºC; 1-% derating for each degree up to 50ºC
required

Relative humidity <95% no condensation

Protection IP21

Display

Alfanumeric display per unit with two lines of 14 charac­ters, leds indicating functioning, plus fault and function
push buttons. Units above and including NXV0400 also
equipped with a PLC touch screen user interface.

Signalling 3 potential free contacts to indicate faults and alarms

Aux. supply (for units
> 200kW)

230VAC, 16A MCB provided, 2,5…16 mm

2

Communications

May include one of the following communication buses as
an optional feature: Modbus RTU, Ethernet (Modbus/TCP),
RS485, GPRS, string and inverter monitoring
May include a monitoring system with http-access as an
optional feature.

Step-up transformer

Not included in delivery.
Allowed types: DyN11 or YyN0, neutral should not be con­nected on inverter side
Impedance voltage: Higher or equal to 6%

Ambient conditions

Altitude

Max. 2,000m

Environmental cate­gory

Indoor, conditioned

OIvervoltage

category

Pollution degree PD2

AC (Mains) OVCIII

AC (Aux.supply) OVCII

DC (Panels) OVCII

RECEIPT OF DELIVERY vacon • 8

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3. RECEIPT OF DELIVERY

3.1 Type designation code

Vacon 8000 Solar inverters have undergone scrupulous tests and quality checks at the factory be­fore they are delivered to the customer. However, after unpacking the product, check that no signs
of transport damages are to be found on the product and that the delivery is complete (compare the
type designation of the product to the code below).

VACON NXV 0125 4 A 2 L A1A2 D700XX

nk3_1_solar.fh11

Vacon NXV = Solar power inverter

Nominal power

e.g. 0125 = 1 25 kW, 0400 = 4 00 kW, 1000 = 1 MW

2 = No galvanic isolation transformer, output 3 x 280 VAC•
4=Galvanicisolationtransformer,ouptut 3x400VAC

Control keypad and display on the cabinet door:

A=standard(alpha-numeric)
B=nolocalcontrolkeypad
F = dummy keypad
G = graphic display

Enclosure class:

2 = IP21/NEMA 1

EMC emiss ion level:

L = fulfils requirements of category C3 of standard EN61800-3 (2004),

2nd environment and rated voltage less than 1000V

T = fulfils standard EN61800-3 (2004) whenused 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

3

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3.2 Lifting the unit out of the transport packaging

Before unpacking the device, check the correctness of delivery by comparing your order data to the
drive information found on the package label.

The unit is delivered either in a wooden box or a wooden cage. The box may be transported either
horizontally or vertically, while transportation of the cage in a horizontal position is not allowed. Al­ways refer to shipping marks for more detailed information. To lift the unit out of the box, use lifting
equipment capable of handling the weight of the cabinet.

There are lifting lugs on the top of the cabinet and these lugs can be used to lift the cabinet into an
upright position and to move it to the place needed.

Units NXV 0125 and NXV0200 may be lifted as shown in Figure 3-2, in vertical or horizontal position.
However, bigger units (NXV0400 to NXV1200) must always be lifted in vertical position, see Figure
3-3.

Figure 1.Lifting 1-cabinet unit

Min 60°

Min 60°

Min 60°

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After unpacking the product, check that no signs of transport damages are to be found on the prod­uct and that the delivery is complete.

If the delivery does not correspond to your order, contact the supplier immediately.

Should the drive have been damaged during the shipping, please contact primarily the cargo insur­ance company or the carrier.

If the equipment has been damaged, do not install it.

Keep the original packaging in case it is necessary to return the equipment to the manufacturer.
Otherwise recycle the packaging material according to local regulations.

Figure 2.Lifting several-cabinet units

3

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3.3 Storage

If the inverter is to be kept in store before use make sure that the ambient conditions are accept­able:

Storing temperature -40...+70

ºC

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 inverter
once in 24 months and kept on for at least 2 hours. If the storage time exceeds 24 months the elec­trolytic DC capacitors need to be charged with caution. Therefore, such a long storage time is not
recommended.

If the storing time is much longer than 24 months, the recharging of the capacitors has to be carried
out so that the possible high leakage current through the capacitors is limited. The best alternative
is to use a DC-power supply with adjustable current limit. The current limit has to be set for exam­ple to 300…500mA and the DC-power supply has to be connected to the B+/B- terminals (DC supply
terminals).

DC-voltage must be adjusted to nominal DC-voltage level of the unit (1.35*Un AC) and supplied at
least for 1 hour.

If DC-voltage is not available and the unit has been stored de-energized much longer than 1 year
consult factory before connecting power.

3.4 Maintenance

Please contact Vacon service for recommended maintenance schedule.

3.5 Warranty

Only manufacturing defects are covered by the warranty. The manufacturer assumes no responsi­bility for damages caused during or resulting from transport, receipt of the delivery, installation,
com-missioning or use.

The manufacturer shall in no event and under no circumstances be held responsible for damages
and failures resulting from misuse, wrong installation, unacceptable ambient temperature, dust,
corrosive substances or operation outside the rated specifications.

Neither can the manufacturer be held responsible for consequential damages.

The Manufacturer's standard time of warranty is 18 months from the delivery or 12 months from
the commissioning whichever expires first (Vacon Warranty Terms).

The local distributor may grant a warranty time different from the above. This warranty time shall
be specified in the distributor's sales and warranty terms. Vacon assumes no responsibility for any
oth-er warranties than that granted by Vacon itself.

In all matters concerning the warranty, please contact first your distributor.

INSTALLATION vacon • 13

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4. INSTALLATION

The installation of the VACON 8000 SOLAR solar inverter may only be carried out by a qualified
technician
who fully understands the safety and installation 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:

Figure 3.NXV0125 inverter mocule (standalone) and some essential components

L1, L2, L3

PE busbar

DC busbar s

Cfilter
unit

AFE unit

PE ter minal s

Op en in gs
for mains
cables

Con t rol
unit

Bus bar
supports

AC busbar s
(option)

AC sw it ch

Lfilter
unit

DC swit ch

PE

DC swit ch

AC swit ch

4

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Due to the heavy weight of the device, it must be placed on a firm and horizontal surface.
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.

Figure 4.NXV0200 inverter module (standalone) and some essential compo-

nents

Figure 5.NXV0200 inverter module (line unit) and some essential components

DC swi tch

Emergency
stop

AC switch

AFE un it

Cont ro l
unit

PE ter minals

L1, L2, L3

DC+
DC-

Openings
for mains
cables

PE busbar

Cfilter
unit

Lfilter
unit

DC swi tch

AC swi tch

L1, L2, L3

PE busbar

DC busbar s

Cfilter
unit

AFE unit

PE ter minals

Openings
for mains
cables

Con t rol
unit

Bus bar
suppor ts

AC bu sbar s
(opt ion)

AC swit ch

Lfilter
unit

DC swi tch

PE

DC swi tch

AC swit ch

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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 device. Small
particles may enter the equipment through the ventilation grids and damage the
equipment.

Do not block the ventilation grids.

Unit must be installed on non-flammable ground.

The unit is not intended for wet location.

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4.1 Free space around the cabinet

Enough space must be left above, behind and in front of the cabinet to ensure sufficient cooling and
space for maintenance.
The amount of cooling air required is indicated in the table below. Also make sure that the
temperature of the cooling air does not exceed the maximum ambient temperature of the inverter.

Figure 6. Space to be left free above (left) and in front of (right) the cabinet

Type Cooling air required [m3/h)

NXV0125

800

NXV0200

1000

NXV0400

2000

NXV0600 3000

NXV0800 4000

NXV1000 5000

NXV1200 6000

Table 4. Required cooling air

200 mm

800 mm

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4.2 Fixing the unit to the floor

The cabinet should always be fixed to the floor. There are holes in all four corners to be used for
fixing, see Figure 4-5.

Figure 7.Fixing the cabinet to the floor

Welding of the cabinet might risk sensitive components in the converter.
Ensure that no grounding currents can flow through any part of the converter.

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4.3 Fixing cabinets to each other

In case the delivery consists of several cabinets sections including drives the cabinets must be
joined to each other. This will take place by 1) connecting the PE bars and 2) using the components
of accessories kit attached to the delivery. To join two cabinet sections to each other you will need 3

angular baying brackets (A)

and

6 quick-fit baying clamps (B) (see Figure4-6 below).

The angular baying brackets are used in top rear and top front as well as bottom rear corners of
the cabinet.

Figure 8.Baying brackets

Figure 9.Fixing corners

AB

Top rear and front corner fixing

Bottom rear corner fixing

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Use the quick-fit baying clamps to join the cabinets at points approximately shown in picture on the
right.

Note! Attach the baying clamps from the inside!

Finally join together the PE busbars (Figure 4-9) as well as AC or DC bars (Figure 4-10) by bolting
together the baying bracket of the one and the busbar of the other cabinet.

Figure 10.Cabinet fixing points

4

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In Figure 4-10 right, the connection is not yet made. In the magnification (left), the connection of
the upper bars is complete (1) and the lower bars shall be connected by sliding the longitudinal
busbar connector (2) to the right on the busbar joint and tightening the bolts.

Figure 11.Joining the PE bars

Figure 12.Joining the AC or DC bars (AC bars in this exaple)

1

2

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5. ELECTRICAL CONNECTION

5.1 Electrical diagrams

For larger types see Appendix A

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.

Figure 13.Electrical diagram for NXV0125

Figure 14.Electrical diagram for NXV0200

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5.2 Cabling

Before connecting the cables to the solar inverter, use a multimeter to check that the cables to be

connected are not live.

Cables coming from photovoltaic panels will be active while panels are lit.

The tightening torques of all power connections are given in table below:

5.2.1 Earth connection

The solar inverter has an earth connection terminal to which all the inverter's metallic parts are
connected. This connection terminal must be connected to earth. After the PE busbars have been

joined together as instructed in chapter 4.3, the PE busbar must be earthed. See appendix B.

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.
Make openings for the cables in the grommets on the bottom of the cabinet and lead through the

cables. See Figure 5-5.

Figure 15.Main cabling NXV0125 standalone unit (cable clamps not included in delivery)

Table 5. Tightening torques of power connections

Screw/Bolt

size

Tightening torque

[Nm]

M6 8...10

M8 18...22
M10 35...45
M12 65...75

L1
L2
L3

DC+

DC-

PE busbar

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Figure 16. Main cabling NXV0200 standalone unit (cable clamps not included in delivery)

Figure 17. Mains cabling NXV0200 line unit (cable clamps not included in delivery)

L3
L2
L1

PE busbar

DC+
DC-

L3
L2
L1

PE busbar

5

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Figure 18. Main cabling with optional AC-section

The cable cross section will be determined according to the power and distance to the connection
point, following the local regulations.

5.2.3 Connection to photovoltaic panels

Run the solar panel cables to the respective terminals on the drive through the bottom of the
supply unit (see Figure 5-6 left). Check for the cable sizes and the appropriate number of cables in
tables on page 25. Always connect the two cables on both sides of the terminal bar (see Figure 5-6
right).
Connect the positive pole of the photovoltaic panel to the terminal marked with ‘+’ and the negative

pole to the terminal marked with ‘-‘.

Model Minimum cross section

per unit

[mm2]

Maximum cross section

per unit

[mm2]

All 10 240

Remember that photovoltaic panels produce a current while they are illuminated. Be
sure to check that cables are not live.

NOTE! Wrongly connected cables may damage the equipment.

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Figure 19.Inverter connection to solar panels (units below NXV0800)

Figure 20.Inverter connection solar panels (units above and including

NXV0800)

Table 6. Panel input cable dimensions

Model Minimum cross section Recommended cross section Maximum cross section

NXV0125

3x 2x70mm

2

3x 2x95mm

2

4x 2x185mm

2

NXV0200

4x 2x95mm

2

4x 2x95mm

2

4x 2x240mm

2

NXV0400

8x 2x95mm

2

8x 2x95mm

2

20x 2x185mm

2

NXV0600

12x 2x95mm

2

12x 2x95mm

2

20x 2x185mm

2

Make t he sol ar
panel connection here

DC+
DC-

DC+

DC-

Connect one cable on either
side of th e ter minal bar

PE PE

PE PE

PEPE

Connect one cable on either side
of the ter m inal bar.

Make the solar panel
connection here.

DC+
DC-

DC-

DC+

5

vacon • 27 ELECTRICAL CONNECTION

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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 on DC-side and 50 m in length on AC-side.

NXV0800

15x 2x95mm

2

16x 2x95mm

2

32x 2x185mm

2

NXV1000

19x 2x95mm

2

20x 2x95mm

2

32x 2x185mm

2

NXV1200

23x 2x95mm

2

24x 2x95mm

2

32x 2x185mm

2

Table 7. Panel output cable dimensions

Model

Minimum cross

section

Recommended cross

section

Maximum cross section

NXV0125

2x 3x95mm

2

2x 3x120mm

2

2x 3x240mm

2

NXV0200

3x 3x95mm

2

2x 3x185mm

2

4x 3x240mm

2

NXV0400

6x 3x95mm

2

4x 3x185mm

2

12x 3x240mm

2

NXV0600

9x 3x95mm

2

6x 3x185mm

2

12x 3x240mm

2

NXV0800

12x 3x95mm

2

8x 3x185mm

2

16x 3x185mm

2

NXV1000

15x 3x95mm

2

10x 3x185mm

2

16x 3x185mm

2

NXV1200

17x 3x95mm

2

2x 3x185mm

2

16x 3x185mm

2

Table 8. Panel earthing cable

dimensions

Model Cross section

NXV0125

50mm

2

NXV0200

50mm

2

NXV0400

50mm

2

NXV0600

50mm

2

NXV0800

50mm

2

NXV1000

50mm

2

NXV1200

50mm

2

Table 6. Panel input cable dimensions

Model Minimum cross section Recommended cross section Maximum cross section

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5.3 Fuse selection

The table below shows typical cable sizes and types that can be used with the Vacon 8000 Solar
inverter. The final selection should be made according to local regulations, cable installation
conditions and cable specification.

5.3.1 Fuses for inverters

5.3.2 Fuse for charging

5.3.3 Fuse for EMC capacitors

CAUTION! Maximum AC-side short-circuit breaking capacity Icu=30kA.
With optional AC-section I

cu=40kA.

Inverter

type

Nominal

current

[A]

Nominal

voltage

[V]

Braking
capacity

[kA]

Acting

behaviour

Fuse size

Suitable fuse type

(Cat. nr by Ferraz-

Shawmut

NXV0125 400 810 125 aR 71 DIN110 PC71UD13C400D1A
NXV0200 630 930 125 aR 73 DIN110 PC73UD13C630D1A
NXV0400 630 930 125 aR DIN3 PC73UD13C630PA
NXV0600 630 930 125 aR DIN3 PC73UD13C630PA
NXV0800 630 930 125 aR DIN3 PC73UD13C630PA
NXV1000 630 930 125 aR DIN3 PC73UD13C630PA
NXV1200 630 930 125 aR DIN3 PC73UD13C630PA

Table 9. Fuse selection; suitable fuses for Vacon 8000 Solar inverter types

Nominal

current

[A]

Nominal

voltage

[V]

Braking

capacity

[kA]

Acting

behaviour

Fuse

size

Suitable fuse type (Cat.

nr by Ferraz-Shawmut

32 810 125 aR DIN00 NH00UD10C32P

Table 10. Fuse selection, fuse for charging

Nominal

current

[A]

Nominal

voltage

[V]

Braking
capacity

[kA]

Acting

behaviour

Fuse

size

Suitable fuse type (Cat.
nr by Ferraz-Shawmut

25 1000 10 gPV 10*38 HP10M4

Table 11. Fuse selection, fuse for EMC capacitors

13006.emf

5

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5.3.4 Fuse for measuring

5.4 Control connections

The control boards are situated inside 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, D2, D7 and CI. The
control connections of these boards are described below. For more detailed information on the
boards you can find in Vacon Option Board Manual.

Nominal

current

[A]

Nominal

voltage

[V]

Braking
capacity

[kA]

Acting

behaviour

Fuse

size

Suitable fuse type (Cat.

nr by Ferraz-Shawmut

4 1000 10 gPV 10*38 HP10M4

Table 12. Fuse selection, fuse for measuring

Figure 21.Board slots

in control unit

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5.4.1 Basic board OPTA1

Figure 22.Vacon OPT-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 (s e e page 3 1 )

5

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Terminal Parameter reference

on keypad and NCDrive

Technical information

1 +10 Vref Reference output +10V; Maximum current 10 mA

2 AI1+ An.IN:A.1 Selection V or mA with jumper block X1 (see page 30):

Default: 0– +10V (Ri = 200 k)

(-10V..+10V Joy-stick control, selected with ajumper)
0– 20mA (Ri = 250 ? )

Resolution 0.1%; Accuracy ±1%

3 AI1– Differential input if not connected to ground;

Allows ±20V differential mode voltage to GND

3AI1–

4 AI2+ An.IN:A.2 Selection V or mA with jumper block X2 (see page 30):

Default: 0– 20mA (Ri = 250)

0– +10V (Ri = 200 k)

(-10V..+10V Joy-stick control, selected with a jumper)

Resolution: 0.1%; Accuracy ±1%

5 AI2– Differential input if not connected to ground;

Allows ±20V differential mode voltage to GND

5AI2–

6 24 Vout (bidirec-

tional)

24V auxiliary voltage output. Short-circuit protected.

±5%, maximum current 150 mA

+24Vdc external supply may be connected.

Galvanically 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. 5

9 DIN2 DigIN:A.2 Digital input

2 (common CMA); Ri = min. 5

10 DIN3 DigIN:A.3 Digital input

3 (common CMA); Ri = min. 5

11 CMA Digital input common A for DIN1, DIN2 and DIN3.

Connection by default to GND.

Selection with jumper block X3 (see page 30):

12 24 Vout (bidirec-

tional)

Same as terminal #6

Galvanically connected to terminal #6.

13 GND Same as terminal #7

Galvanically connected to terminals #7 and 19

14 DIN4 DigIN:A.4 Digital input

4 (common CMB); Ri = min. 5

15 DIN5 DigIN:A.5 Digital input

5 (common CMB); Ri = min. 5

16 DIN6 DigIN:A.6 Digital input

6 (common CMB); Ri = min. 5

17 CMB Digital input common B for DIN4, DIN5 and DIN6.

Connection by default to GND.

Selection with jumper block X3 (see page 30):

18 AO1+ AnOUT:A.1 Analogue output

19 AO1– Output signal range:

Current

0(4)–20mA, RL max 500 or

Voltage

0—10V, RL >1k

Selection with jumper block X6 (see page 30): Maximum

Resolution: 0.1% (10 bits); Accuracy ±2%

20 DO1 DigOUT:A.1 Open collector output

Maximum

U

in

= 48VDC

Maximum current = 50 mA

Table 13. I/O terminals on OPTA1 (coded terminals painted black)

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Jumper selections

There are four jumper blocks on the OPTA1 board. The factory defaults and other available jumper

selections are presented below.

OPTA1 parameters

Figure 23.Jumper block selection on OPTA1

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

Table 14. OPTA1 board-related parameters

ABCD

ABCD

ABCD

ABCD

ABCD

ABCD

ABCD

ABCD

ABCD

ABCD

Jum pe r b lo ckX1:

AI1 m ode

AI1 mode: Voltage input; 0...10 V

AI1 mode: Voltage input; 0...1 0V (differential)

AI1 mode: Voltage input; -10...10 V

Jum pe r b lo ckX2:

AI2 mode

AI2 mode: 0 ... 20 mA; Current i nput

AI2 mode: Voltage i nput; 0.. .10 V

AI2 mode: Voltage input; 0 ...10V (differential)

AI2 mode: Voltage input; -10 ...10 V

Ju mp e r b l ock X 3 :

CM A a nd CM B gr o u nd i n g

CMB connected to GND
CMA connected to GN D

CMB isolated from G ND
CMA isolated from GND

CMB and CM A
inter nally connec ted tog ether,
isolated from GN D

=Factorydefault

Ju mp e r b lo ck X 6 :

AO1 mode

AO 1 mod e: 0 ... 20 mA; Cur rent output

AO 1 mod e: Vol tag e o utput; 0 ... 10V

AI1 mode: 0. ..20 mA; Current i nput

5

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5.4.2 Option board OPTA2

I/O terminals on OPTA2

3AO1 mode 1411 = 0...20mA

2 = 4...20mA
3 = 0...10V
4 = 2...10V

Description:

Standard Vacon NX frequency converter relay board with two relay outputs

Type ID: 16690
Allowed slots:

B

Terminals: Two terminal blocks; Screw terminals (M3); No coding
Jumpers: None
Board parame-

ters:

None

Termina l

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

Min. switching load

24VDC/8A
250VAC/8A
125VDC/0.4A
5V/10mA

24
25
26

RO2/normal closed

RO2/common

RO2/normal open

DigOUT:B.2

Relay output 2 (NO/NC)
Switching capacity

Min. switching load

24VDC/8A
250VAC/8A
125VDC/0.4A
5V/10mA

Table 15. OPTA2 I/O terminals

Number Parameter Min Max Default Note

Table 14. OPTA1 board-related parameters

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5.4.3 Option board OPTB5

I/O terminals on OPTB5

Note: This expander board can be placed into four different slots on the control board. Therefore,

the 'X' given in the Parameter reference shall be replaced by the slot letter (B, C, D, or E) depending
on the slot which the expander board is plugged into.

Description: I/O expander board with three relay outputs.

Allowed slots: B, C, D, E

Type ID: 16949

Terminals: Three terminal blocks; Screw terminals (M3); No coding

Jumpers: None

Board parameters: None

Termina l

Parameter reference

Keypad/NCDrive

Technical information

2223RO1/common

RO1/normal open

DigOUT: X.1 Switching capacity

Min. switching load

24VDC/8A
250VAC/8A
125VDC/0.4A
5V/10mA

2526RO2/common

RO2/normal open

DigOUT: X.2 Switching capacity

Min. switching load

24VDC/8A
250VAC/8A
125VDC/0.4A
5V/10mA

2829RO3/common

RO3/normal open

DigOUT: X.3 Switching capacity

Min. switching load

24VDC/8A
250VAC/8A
125VDC/0.4A
5V/10mA

5

vacon • 35 ELECTRICAL CONNECTION

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5.5 Option board OPTC2 (RS-485)

Figure 24.Vacon RS-458 option board OPTC2

Signal Connector 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

X4

X1

Bus connector

Jumper s Interface board connector

Grounding plate

1
2
3
4
5

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5.6 Option board OPTD2

Note! This figure presents the layout of D2 board version H or later. See Chapter
Jumper selections below.

I/O terminals on OPTD2

Description:

System Bus adapter board with single optical input and output; Interface to fast mon-

itor bus used by the NCDrive PC tool.

Allowed slots:

(B,)D, E; Note: If only the Monitor Bus (terminals 21 to 23) is used the board

can also be placed in slot B. The System Bus is then unavailable. Remove

therefore jumpers X5 and X6. See page 36.
Type ID: 17458
Terminals:

Single optical input and output; one screw terminal block (M3),

Agilent HFBR-1528 (Receiver), HFBR-2528 (Transmitter).
Jumpers:

4; X3, X4, X5 and X6. See page 36

Board
parameters:

None

Term in al Tech n ical information

1

H1 System Bus optical input 1 (RX1)

Use 1-mm optical cable (e.g. Agilent HFBR-RUS500 &
HFBR-4531/4532/ 4533 connectors)
Note: Not available if the board is placed in slot B

2

H2 System Bus optical output 1/2 (TX1/TX2);

Selected with jumper X5
Use 1-mm optical cable (e.g. Agilent HFBR-RUS500 &
HFBR-4531/4532/4533 connectors)
Note: Not available if the board is placed in slot B

21

CAN_L Monitor Bus negative data

22

CAN_H Monitor Bus positive data

23

CAN_SHIELD Monitor Bus shield

H1

H2

5

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Jumper selections

There are four jumper blocks on the OPTD2 board. The factory defaults and other available jumper

selections are presented below.

Note! Position C can be used with 3- or 4-wire CAN cable to interconnect isolated CAN ground levels in
the network. It is recommended to connect the cable shield to the grounding clamp of the drive.

Figure 25.Jumper selections for OPT-D2, up to version G

Figure 26.X3 jumper selections for OPT-D2, version H and lat-

er

Jumpe r block X3:

CAN grounding

Connected to shield Not connected to shield

Jumper block X4:

CAN termination

Terminated Not ter minated

Jumper block X5*:

System bus output

Output TX1 Output TX2

Jumper block X6*:

SystemBus input ON/OFF

ON OFF

= Factory default

*IftheboardisplacedinslotBtheSystemBusisnot
available. Remove jumpers X5 and X6.

CAN grounding

ABC

A: Connected to ground
B: Connect ed to grou nd via LC filter
C: Conne cted to CAN isolated grou nd
Not assembled: No con nection
S

ee fur the r clar ifi c a tions of the alte rna tives ne xt page !

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Alternative connection of “CAN GND” signal: connect ‘CAN GND’ together between all nodes. Use the
signal wire inside the shield for this purpose, see figure below:

Figure 27.CAN grounding alternatives

PE NC GND

PE NC GND

PE NC GND

A

23

chassis

CAN GND

chassis

- Used when the shield is connected to terminal 23
and the distance between the devices is short

B

chassis

chassis

23

CAN GND

- Used when the shield is connected to terminal 23
and the distance between the devices is long

C

23

CAN GND

chassis

- Used when CAN GND is connected to terminal 23.
This setting is recommended for best noise immunity

= Factory default

= Recommended setting

5

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Connections between drives with OPTD2

Special connection:

In this connection example, the leftmost device is the Master and the others are slaves. The Master
can send and receive data from the slaves. The slaves cannot communicate with each other. Changing
of masters is not possible, the first device is always the Master.
The OPTD2 board in the Master has the default jumper selections, i.e. X6:1-2, X5:1-2. The jumper

positions have to be changed for the slaves: X6: 1-2, X5:2-3.

Figure 28.Alternative connection of “CAN GND” signal

Max.

number of devices

in line

Max.

speed achieved

[Mbit/s]

312

66

12 3

24 1.5

Shield

IHNACIHNAC

OLNACOLNAC

CAN
GND

CAN
GND

21 22 23

OPTD2 /
OPTD6

OPTD2 /
OPTD6

OPTD2 /
OPTD6

Grounding clamp

Conn ect th e
data GND
tightly to the
chassis on
one point
in the net

21 22 23

21 22 23

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5.7 Option board OPTD7 (Line voltage measurement board)

OPTD7 is an AC sinusoidal voltage measurement board. Using this board, the drive measures the
line voltage, frequency and voltage angle information. The drive can compare this information with
its output voltage angle when running. This feature can be used to develop applications for
different
purposes using NC61131-3 application programming 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
input.
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
transformer
primary to secondary ratio. Please refer to specification section for further engineering.
The measurement signal connected into the OPT-D7 option board can not exceed 14.26 Vrms.

Figure 29.Connection example of drives with OPTD2

OPTD2

Jumper X5 : TX2

X6 : ON

OPTD2

Jumper X5 : TX2

X6 : ON

OPTD 2

Jum pe r X5 : T X2

X6 : ON

OPTD2

Jumper X5 : TX1

X6 : ON

H1

(RX)

H2

(TX)

Master
SBInUse = Yes
SBID = 1
SBNextID = 2
SBLastID = 4

Follower

SBIn Use = Yes
SBID = 2
SBNext ID = 3

Follower

SBInUse = Yes
SBID = 3
SBNext ID = 4

Follower

SBInUse = Yes
SBID = 4
SBNext ID = 1

H1

(RX)

H1

(RX)

H1

(RX)

H2

(TX)

H2

(TX)

H2

(TX)

5

vacon • 41 ELECTRICAL CONNECTION

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The board can only be placed in slot C.

OPTD7 connections

OPTD7 board specification

Transformer primary/
input voltage range

Min 380VAC -15%
Max 690VAC +15%

Transformer ratio
Primary : secondary

60:1

Transformer secondary/
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%

ELECTRICAL CONNECTION vacon • 42

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5.8 Option board OPTCI (Modbus/TCP board)

Vacon NX frequency converters can be connected to Ethernet using an Ethernet fieldbus board
OPTCI.

The OPTCI can be installed in the card slots D or E

Figure 30.OPTCI option board

General Board name OPTCI
Ethernet connections Interface RJ-45 connector
Communications Transfer cable Shielded CAT5e

Speed 10 / 100 Mb
Duplex half / full
Default IP-address 192.168.0.10

Protocols Modbus / TCP
Environment Ambient operating

temperature

–10°C…50°C

Storing temperature –40°C…70°C
Humidity <95%, no condensation allowed
Altitude Max. 1000 m
Vibration 0.5 G at 9…200 Hz

Safety Fulfils EN50178 standard

6

vacon • 43 START UP

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6. START UP

Starting up the VACON 8000 SOLAR inverter is simple, but it is important that the following
instructions are followed:

1. Check that the cables from the solar panels are correctly connected and that the DC con­nection switch is closed.

2. Ensure that the cables coming from the mains supply, including the earth cable, are cor­rectly 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 inverter starts up every day in the morning and automatically stops at night. Due to different
atmospheric conditions, the inverter may start up and stop more than once each day.

THE SOLAR MULTIMASTER APPLICATION vacon • 44

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7. THE SOLAR MULTIMASTER APPLICATION

The Solar Multimaster is a unique concept that improves efficiency, reliability and functionality in
all large-scale applications.
The concept allows a series of two to five separate inverter units to be connected together in
sequence. This means that only the optimal needed number of inverter modules is powered up for
minimal power loss. By rotating the inverters in use we can ensure equal usage, thereby extending
the entire setup’s overall lifetime. The entire setup is centrally controlled via the touch screen on
the control unit. This modular approach creates numerous advantages compared to conventional
single inverter setups. In addition to allowing for optimisation according to sunlight, the modularity
allows for repairs and maintenance to be carried out without complete shutdowns. The charging
fuse disconnectors allow single units to be safely connected and disconnected while the setup is up
and running.

The modular setup makes it possible to design the layout according to the available space, and
means that the entire solution is extremely flexible. As a system integrator you can have a buffer
stock of single modules and configure the right power level by paralleling the modules and
selecting the right power setup using the touch screen. The setup allows you to have fast deliveries
when needed.
The Solar Multimaster solution also makes expansion extremely easy. Instead of replacing the
entire inverter, you can simply add inverter units onto the setup. Depending on your needs, the set­up can include 1 to 5 individual units. The setup within the individual units is also modular and
uncluttered. This means that access to single components, such as the inverter module and LCL­filter, is also easy and fast.

8

vacon • 45 CONTROL INTERFACES

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8. CONTROL INTERFACES

8.1 Screens and Navigation

TA70 is a touch screen panel. Operations and navigations of the panel are done by touching the

screen.

Transitions to sub-screens is made by touching one of the buttons at bottom of main view.

Every sub-screen has a Main View –button that returns to the main view

Figure 31.Buttons to sccess sub-screens

Figure 32.Ho

me button

returns to

main view

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8.2 Main view

Main view presents all the essential information of the Vacon 8000 Solar system. For more specific
information of individual units and historical data there are several sub- screens. System activation
and stop buttons are located in main view.

Master is a device that is “The Boss” of the communication. The purpose of the Master is to mea­sure a Grid status, DC voltage and by the DC Voltage it counts a reference value of the DC. By the
Grid status master works with Grid standards. Master sends values to slaves and TA70 touch panel.
The TA70 touch panel is response to these values and commands the slave units to ON or OFF
states, if there is any. Usually in a device combination there are more than one similar devices con­nected to each other. In these cases one of the devices must be set to be as master and the rest as
slave.

Slave is a device that is a “listener” of the communication. The purpose of the Slave is to listen val­ues and commands coming from the Master device.

All units are send status information to the TA70 touch panel.

When the system is stopped there is an arrow indicating which unit will start as a master next time.

8.2.1 System Activation

System activation and stop –buttons are placed on top left corner of main view. Buttons also indi­cates the actual state of system activation. The system remembers the activation state during pow­er downs. See Table 1. Activation/Stop.

Figure 33.Main view present all the essential informa-

tion of system

Figure 34.Indica-

tor showing the

next master in-

verter

8

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If system is activated, it will not necessary mean that the system starts. It could e.g. be that the in­verters are not ready to be started because of low irradiation. However, the system goes into a mode
where it either tries to start or waits for the inverters to get ready.

8.2.2 System status

Figure 35.System Activation/Stopped

status

System stopped

System activated

Enter State

Not Ready

Stopped

Standby

Generating

Faulted

Critical Faults?

Yes

Start Criterions

Fullfilled?

Start button

pushed?

No

Is any of units

Ready ?

Yes

Is the Master

Ready ?

No

Waking

Is DC Voltage

enough?

Yes

No

No

Yes

Is 10min

waiting time

over?

Yes

No

Change Master

Yes

No

Sleepi ngNo

Is Output

power

enough?

Stop button

pushed?

No

Turn off UnitNo

Turn on Unit

Is Output

power max

limit?

Yes

YesNo

Ready

Yes

Yes

Critical Faults?

No

Criti cal Fa ults?

No

Yes

Criti cal Fa ults?

No

Yes

Is the re any

unit run?

Yes

No

Yes

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Systems actual status is shown as text in the top of the main view. For different status of system
please refer Table 2 System statuses

8.2.3 Total Power

When system is generating the total power of all units is shown in top right corner of the main view.

8.2.4 Total energy counter

The total energy counter is shown below total power. It is the total accumulated energy produced
by all inverter units.

8.2.5 DC Bus Voltage

The DC voltage is shown below total energy counter.

Caution: If all the units are unavailable, e.g. during night time, the value of voltage is blinking red “-

-“. That means the actual DC Voltage is unknown but the DC link might actually have hazardous
voltage.

Table 16. System statuses

Faulted System is stopped because of a critical fault. Critical faults are

explained in chapter 2.3 Start Cond

Not ready System is stopped due to missing external run enable signal. (For

programming of external signals see 2.7.3 Settings 3)

Stopped System is in stop mode
Sleeping System is sleeping. There are no unit available. System stays in

sleeping state until there are units in ready mode

Waking There are ready units but the system waits for the master to go to

ready state. (The system will change master automatically if not in
ready state within 10min {default}.)

Generating System is running and generating power.
Standby System is in standby mode.

Table 17. Total power, Total energy counter and DC bus voltage

Figure 36.Blinking red “--” indicates no valid

DC bus voltage read

VDC

--

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8.2.6 Main View Units

Unit status, power generated and total running hour are shown in main view for each unit. Number
of unit rows is depending on size of the Vacon 8000 Solar system.

The unit row shows the status of the unit as symbol animation. Indication is explained in Table 8-2.

The power generated in kW is shown as number and bar graph animation in percentage. Running
hours is a total counter.

Value “- -“ indicates that unit is unavailable or communication not working and actual value or sta­tus is unknown.

8.2.7 Event Banner

Last occurred event, alarm or fault is shown in the bottom of the main view.

Figure 37.Unit status, power and total running

hours are shown for all units

Figure 38.Unit status indication

Unit is ready

Unit is runnig as master

Unit is running as slave

Unit is not ready

DBlinking red: Unit is faulted

Master in standby

Unit is unavailable

Figure 39.Last occured event in main view

Time stamp Source Event description

M

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8.2.8 Start Cond

System start conditions screen summarizes critical faults and states. These faults or states will
stop and/or prevents system to start.

Symbols explained below:

Figure 40.System start conditions

Figure 41.Conditions

Fault or Not OK. Stops the system and/or prevents system to start

Ok

N/A. This fault is used in system

Table 18. Conditions

Condition

Possible Fault cause

AC Main Switch AC Main Switch is not closed.

DC Main Switch DC Main Switch is not closed. All DC charging switches

needs to be opened before the DC Main Switch can be
closed.

Emergency Switch Emergency Stop has been activated.

Run Enable External run enable signal is not activated.

Insulation DC There is an insulation fault on the DC side coming from dig-

ital input signal.

Insulation AC Signal from external AC insulation measurement indicates

insulation fault on AC side.

External Fault 1 External fault signal from digital input.

External Fault 2 External fault signal from digital input.

DC Insulation Monitor There is an insulation fault on the DC side coming from

analog input measurements.

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8.3 Events

Event list shows faults, alarms and events of system and individual units.

Each row in list is an event, alarm or fault. Active time is the timestamp when an event has occurred,
group indicates the source of event, alarm or fault; it is either system or a specific unit. For events
and cleared faults/alarms the background colour of the row is white. For active faults the back­ground colour is red and for active alarms background colour is yellow.

The event list can be filtered to show only faults by choosing the “Basic” radio button. By choosing
“Full” the list will show all possible events, faults and alarms of the system and units.

DC Swiches Units DC Switches are not closed although DC Main switch

is closed, or they are closed when the DC Main Switch is
open.

Overvoltage One or many inverter(s) have tripped on Overvoltage fault

Communication IO Communication to Remote I/O module is lost.

Figure 42.Event list

Figure 43.Event list filter options

Event list is filtered. Only faults of system and units are shown. Green dot
indicates the selection

Event list shows all the faults, alarms and events

Table 18. Conditions

Condition

Possible Fault cause

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There is also the possibility to filter the list by only showing the events of a specific unit or system
events by selection in the drop down list.

8.4 System Trends

Historical trend of the system are total counters for procured energy and DC insulation measure­ment.

8.4.1 System Total

System total trend shows the historical value for the total current and total produced power of the
system in a time span of last 24 hours. Red trend is the current and blue is the total power produced.
Scale of the Y-axis is can be optimized for Output Current or Output Power by the buttons in the top
of the screen.

Figure 44.Even
t list can be fil-

tered also by

group. Group is

either system

or an unit

Figure 45.System total current and power monitoring

Figure 46.Y-axis scale of trends

Scale of Y-axel for the trend is the current [A]. Green dot indicates actual selection

Scale of Y-axel for the trend is the power [kW]

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8.4.2 DC Insulation Monitoring

DC insulation trend shows historical measurement of the DC insulation value in scale of 0..100%.
This sheet is visible only when DC insulation is measured by analog input.

Time span of trend is 24 hours by default. The scale can be changed by touching the trend view and
then select another time span.

8.4.3 Energy tables

Total Energy kWh page show the total and unit specific energy produced during the present day,
week and month.

There are also buttons for accessing historical data on a daily, weekly or monthly basis.

Figure 47.DC insulation measurement trend

Figure 48.Time span

scaling dialog

Figure 49.Produced energy table menu page

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8.4.3.1 Daily energy history

Produced daily energy historical trend summarises the total energy for the system and units pro­duces per day in kWh.

8.4.3.2 Weekly energy history

Produced weekly energy historical trend summarises the total energy for the system and units per
week in kWh.

Figure 50.Daily energy produced for whole

system and units in kWh

Figure 51.Weekly energy produced for and units

in kWh

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8.4.3.3 Monthly energy history

Produced monthly energy historical trend summarises the total energy for the system per month
in kWh.

8.5 Unit View

Unit view shows detailed information of the units. There is a screen for every unit defined in the sys­tem. Navigation between screens is done by pressing the Prev and Next buttons in the bottom of the
screen.

Figure 52.Monthly energy produced for system

in kWh

Figure 53.Navigation be-

tween units

Figure 54.Unit detailed information

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Unit status, fault, alarm and master/slave state is presented in the status bar on the top of the
screen. It has 4 different sections: The general state of the unit, active fault, active alarm or master/
slave.

The different general states of the units are listed in table below

The monitor values are explained in table below.

Last occurred event, fault or alarm for unit is shown in the bottom of screen.

Figure 55.The status bar shows information about

the unit

Table 19. Unit statuses

Not ready Unit is not ready. Unit may have been disabled by the stop button on the units

keypad or because of low DC Voltage.
Stopped Unit is stopped
Running Unit is running and generating power to the grid.
Standby Unit is in standby mode because of low irradiation.
No Comm, Unit is unavailable because of no irradiation during night or e.g. loss of commu-

nication. All the statuses and values are also showing “- -“

Table 20. Unit monitor values

Output Power Output power of the Inverter in kW
Output Current Output current of the Inverter in A
Temperature Temperature of the Inverter in °C
Total Run Time Total run time of the Inverter in hours
Energy Total Total accumulated amount of energy fed into the grid by the Inverter in kWh
Daily Energy Todays energy fed into the grid in kWh
Daily Energy

Previous

Yesterdays energy fed into the grid the previous day in kWh

DC Voltage Voltage on the DC bus in VDC
Net AC Voltage Voltage at the output in V
Net Frequency Output frequency of the Inverter in Hz
Active Fault

Code

Fault code of last active fault

Figure 56.Unit event banner

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8.5.1 Master button

On right of side lays a Master button. When an unit is running as slave, pressing this button will set
the unit to master on the fly. Button is only visible when the unit is running as a slave or system is
Stopped. If system is stopped with this button can choose next master.

8.5.2 Reset button

Reset button resets faults and alarms on the Inverter unit.

8.5.3 Unit Trend

Unit trend for the DC voltage, unit temperature and output power is shown in a time span of last 24
hours by default. Green trend is the DC Voltage yellow trend is unit temperature and blue trend is
produced output power of unit. Scale of Y-axis can be optimized by the buttons in the top of the
screen.

Figure 57.Mas

ter button

Figure 58.Re-

set button

Figure 59.Unit trend

Figure 60.Scale of trends

Scale of Y-axis for trends is the DC voltage in VDC. Green dot indicates actual selection

Scale of Y-axis for trends is the unit temperature in °C

Scale of Y-axis for trends is the output power in kW

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8.5.4 Unit event

If jumping to the event list from the unit view by pressing the event button. The event list will be set
to showing only the events of unit visible in the unit view before jumping to the list. Event list is oth­erwise the same as in paragraph 0 except for the pre-set filtering of event source. “Prev view” –but­ton returns to unit view.

8.6 Settings

Pressing settings button opens the pop-up login menu. Select User: Admin and touch password
field to insert Password. Default Password is: 8000

Access to the settings pages requires a valid password to be entered.

Figure 61.Unit event list

Figure 62.Unit event list

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8.6.1 Settings 1

This is the first view accessed when going into the settings. It contains System and control param­eters that affects to whole system.

Language:

The language of the operator panel can be set by pressing the language button on the right side.

Time zone:

Time zone and daylight saving can be configured by pressing the Time Zone button,
please refer Picture 31. Region setting affects date and time format and also the decimal symbol of
numbers.

Date/Time: Date and Time of the TA70 can be changed by pressing the Date Time buttons, please
refer Picture 32.

Figure 63.System and control parameters

Figure 64.L

anguage

change but-

ton

Figure 65.Time zone and

regional settings

Figure 66.Date and time

settings

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System parameters:

• Inverter type: Size of one inverter unit in the MultiMaster setup. Usually 200kW.

• Number of inverters: The amount of inverter units in the system. (E.g. a 600kW system con-

sisting of 200kW units should be set to 3.) NOTE! The appropriate amount of active commu­nication controllers for the units has to be activated in the Units & Communications dialog.

• Unit & Communications: If the system consist of e.g. 3 inverter units (“Number of Inverter”),

then the controllers of Unit01, Unit02 and Unit03 has to be activated. If 5 units then control­lers Unit01 through Unit05 and vice versa.

Control parameters

• Power Max Limit: If the output power of the master unit exceeds this limit for a time longer

than the “Power Max Delay” then a new slave unit is started.

• Power Max Delay: If the output power of the master unit exceeds “Power Max Limit” for a

time longer than defined with this parameter then a new slave unit is started.

• Power Min Limit: Same as for Max but in the opposite direction, units are removed.

• Power Min Delay: Same as for Max but in the opposite direction, units are removed.

• Master Wait time-out: Wait time for the selected master to get ready if there are other units

in ready state. If ready state for the master unit is not entered within this time, the next ready
unit is automatically assigned as a new master and system started.

IP Settings

Pressing the IP Settings button gives the possibility to set the Ethernet settings. NOTE! Port 1 is for
the internal use MultiMaster system only and should never be changed. Port 2 can be used for con­nection an external supervisory or SCADA system for monitoring purpose. The IP address of port 2
is not allowed to be in the same range as port 1, hence 192.168.0.X .

Figure 67.Active controllers

are selected according num-

ber of inverters

Figure 68.IP Settings pop-up

menu

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Backlight Settings

Screen brightness and delay for turning the backlight off when the panel is not used can be set here.
Note! If the automatic turn off of the backlight is not used, then the life time of the panel will be re­duced.

Clear Event List

Clear event list will erase the historical data in the event list. Confirmation will be asked.

Show Dialog

This is a debug mode to access fieldbus and panel system data(CPU load, etc.).

Figure 69.Backlight settings

pop-up menu

Figure 70.Clear event list

pop-up menu

Figure 71.Show dia-

log buttons

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D button gives you access to the Panel diagnostic tool where e.g. CPU Load, Used Memory, Tem­perature and Screen info can be seen.

S button gives you access to the System diagnostic pop-up screen for internal use and debugging
by Vacon service personnel only.

Save Parameters to USB

This function needs an USB memory stick to be connected to the USB port.

Figure 72.Panel diagnostic tool pop-up

Figure 73.Connect to USB memory to touch pan-

el

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Pressing Save parameters to USB button will open a pop-up menu for choosing the name of the pa­rameter file to be saved on the USB memory stick. The parameters are saved as an .ini file.

Load Parameters from USB

This function needs an USB memory stick to be connected to the USB port and contain a valid pa­rameter file in .ini format.

Selecting the wanted parameter file and pressing the Load button will override the current setting
with the settings of the parameter file.

8.6.2 Settings 2

This view contains the settings for DC Insulations monitoring through analog input and Wake Power
control.

DC Insulation Monitor (Only if Analog Input is used for DC Insulation monitoring):

Actual Measurement Live updated value of the DC Insulation level.
DC Insulation Alarm Level DC Insulation measurement warning level.
DC Insulation Fault Level DC Insulation measurement trip level.
Note! By pressing the button on the right of the fault level parameter, one can choose if exceed-

ing the fault level should trip/stop the system or only indicate a fault event in the event list.

DC Insulation Hysteresis DC Insulation measurement hysteresis level for returning from a fault

or alarm state..

DC Insulation Delay Time to exceed the fault/alarm level before a fault/alarm occurs.

Wake Power:

Figure 74.Save parameters to USB pop-up menu

Figure 75.Load parameters from

USB pop-up menu

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Wake Power is auxiliary power (24VDC) backup to the control boards of every inverter unit.

Wake power is set on when there is communication to any unit and the DC bus and voltage above
220VDC. The Wake Power is removed in the evening when DC voltage reaches Wake Power Off Level
for a time longer than Wake Power Off Delay.

8.6.3 Settings 3

Screen shows definitions of the I/O connections.

Figure 76.Setting for DC insulation monitor

Figure 77.System IO functions

Table 21. Selection of possible input values

Input name Definition

Not Used Not Used
AC Main Switch Closed AC Main Switch feedback input (NO)*
DC Main Switch Closed DC Main Switch feedback input (NO)*
No Insulation Fault DC External DC Insulation measuring device Fault input (NC)**
No Insulation Fault AC External AC Insulation measuring device Fault input (NC)**
No External Fault 1 External Fault Input (NO)*
No External Fault 2 External Fault Input (NO)*

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(* Normally Open contact

(** Normally Close contact

8.6.3.1 IO Diag

On IO Diagnostic screen show actual status of system IO. Digital and analog inputs shows actual
state or value of input. Relay output shows actual state of output. Output status can also be changed
via this screen.

No Emergency Switch-off Emergency switch Input (NC)**
Run Enable External Run Enable input (NO)*
No Surge Arrester Alarm External surge arrester alarm input. (NO)*
No External Alarm 1 External Alarm Input (NO)*
No External Alarm 2 External Alarm Input (NO)*
DC Switch ON DC Switch feedback input (NC)**

Table 22. Selection of possible Output values

Output name Definition

Not Used Not Used
Running System is Running state
Alarm System is Alarm state
Fault System is Fault state
Wake Power On This is output what wake up the power in the units
DC Main Switch Cntrl Control DC main switch state.

Figure 78.Status of system IO

Table 21. Selection of possible input values

Input name Definition

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8.6.4 Settings 4

Settings 4 screen show communication status of system IO and units.

8.6.5 Settings 5

Screen shows TA70 version information as well as system IO version number and Total Energy
Counter value. There is also a possibility to save Energy tables and Event list to the USB memory.

Figure 79.Communication status for system IO and

units

Figure 80.Communication status animation

Communication OK

Communication error. System IO or an unit is
unavailable

Figure 81.Settings 5/5

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9. INVERTER CONTROL KEYPAD

The inverter has a control panel that displays its different variables and conditions.

9.1 Indicators of the inverter condition

Inverter state informs the user about conditions of the inverter and whether the control software
has detected any operating fault.

Control place indications:

= The inverter is running.

= Indicates the order of phases in the mains.

= Indicates that the inverter is not running.

= 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.

= Indicates that the unit is running above a certain limit and issues an alarm.

= Indicates that there are unsafe running conditions and therefore the unit has
stopped.

= I/O terminals are the selected control place; i.e. START/STOP
commands or reference values etc. are given through the I/O
terminals.

= Control keypad is the selected control place; i.e. the Inverter can
be started or stopped, or its reference values etc. altered from the
keypad.

= The inverter is controlled through a fieldbus.

= Run enable not active

= Unit is ready to start in the morning.

RUN

STOP

READY

ALARM

FAULT

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9. 2 S ta t e l e d s

State LEDs light up according to state indicators READY, RUN and FAULT of the inverter. If all LEDs
blink the drive is uncommissioned.

9.3 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.

9.4 Panel push buttons

The alphanumeric control panel of the inverter VACON 8000 SOLAR has 9 push buttons used to
control the inverter and to monitor values.

9.4.1 Description of push buttons

= Lights up with DC voltage connected to the converter with no active failure. The
state indicator READY also lights up simultaneously.

= Lights up when the converter is running.

= Blinks when there are unsafe running conditions and the unit has therefore
stopped (fault trip). Simultaneously, the state indicator FAULT blinks in the dis­play and shows a description of the fault; see chapter Active Faults.

•

= 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

••

= Description line; Shows the description of the menu, value or fault.

•••

= Value line; it shows numeric values and reference texts, parameters, etc, as
well as the number of submenus available for each menu.

= This push button is used to reset active faults.

= This push button is used to switch between the two last displays.

reset

select

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9.5 Browsing the control panel

Data on the control panel is arranged in menus and submenus. Menus are used, for example, to
display 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 accessed
from the main menu using the Menu push buttons. When there are pages under the menu or page
shown, you will see an arrow ( ) in the bottom right corner of the display and you will be able to
access

the following menu level by pressing the Push button Menu right.

9.5.1 Monitoring menu

To enter the Monitoring menu from the Main menu, press the Push button Menu right when the location
indication M1 appears in the first line of the screen. The following figure shows how to view
the monitored values.

The monitored signals have the indication V

#.# and are listed in the following table. Values are updated

every 0.3 seconds.

= The Enter push button serves to:
Restore the fault history (2-3 seconds)

= Push button browser up
Browse the main menu and the pages of different submenus.

= Push button browser down
Browse the main menu and the pages of different submenus.

= Push button Menu left
Return to the menu.

= Push button Menu right
Go forward in the menu.

= To start-up the inverter
In a Multi-Master system: Enable inverter

= To stop the inverter
In a Multi-Master system: Disable inverter

enter

+

-

3

4

start

stop

V1ÎV14

REA D Y

Lo cal

RU N

Monitor

Location

Description

Number of available eleme nts;

eleme nt value

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This menu is used only to verify the signals. Values can not be modified.

Code Parameter Min Max Unit ID Description

V1.1 Output power 0 1000 kW 1707 Output power of inverter, with

compensated
LCL filter losses.

V1.2 Total energy kWh 0 4,29E+09 kWh 1837 Total energy of inverter fed into

the grid.

V1.3 Energy today

kWh

0 6553,5 kWh 1708 Energy fed into the grid today.

V1.4 Energy yesterday 0 6553,5 kWh 1733 Energy fed into the grid yesterday.
V1.5 DC voltage refer-

ence

50 150 % 1200 Used DC voltage reference by the

regenerative
unit in % of the nominal DC volt-

age.
V1.6 DC-link voltage 0 1000 V 1839 Filtered DC-link voltage in Volt.
V1.7 Unit temperature -50 200

ºC

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 is in RUN state.

V1.10 Output current 0 Varies A 1834 Output current of the inverter

coming out of

the cabinet (transformers inside

cabinet are

taken into consideration).

V1.11 Run time total [h] 0 99999999 h 1836 Total time the inverter has been

running.

Table 23. Monitoring values

RUN RE ADY

Lo cal

M1

Monitor

V1ÎV14

RU N RE ADY

Loc al

V1.1

Output power

19.4 kW

RUN READY

Local

V1.1

Daily energy

125 kWh

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9.5.2 Active faults menu

The Active faults menu can be reached from Main menu pressing the Menu right push button when

the location indication M4 can be seen in the first line of the panel display.

When the frequency converter stops due to a fault, the location indication F1, the fault code, a short

description of the fault and the symbol of the fault type appear on the display. Besides, the indication
FAULT or ALARM will appear and, in case of FAULT, the red LED of the panel will start to blink. If
there are several faults simultaneously, the list of active faults may be browsed using the push but­tons

in the browser

Fault codes are listed in chapter 7.2.

The memory of active faults can store a maximum of 10 faults in order of occurrence. You can delete

the display using the Reset push button and the reading device will go back to the same state where
you were before the fault trip. The fault is active until it is deleted with the

Reset push button.

9.5.3 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 with Browser Push buttons.

You can go back to the previous menu at any time, pressing the

Menu left push button .

The memory can store a maximum of 30 faults in order of appearance. The number of faults includ­ed in the fault history is shown in the value line of the main page (H1

Hnº). The order of faults is

indicated through the place indication on the top left corner of the screen. The last fault is indicated
by F5.1, the penultimate fault, F5.2, etc. If there are 30 faults not deleted in the memory, the next
fault will delete the oldest one.

V1.12 Run time today 0 255 h 1731 The time the inverter has been

running today.

V1.13 Run time yester-

day

0 255 h 1732 The time the inverter ran yester-

day.

V1.14 Grid connections 0 4,29E+09 1706 Total number of times the inverter

has closed

the main contactor and connected

to the grid.

V1.15 Standby remain-

ing

0 65535 s 1201 Remaining time in standby mode,

if standby

mode is activated.

Normal state,
no faults

Code Parameter Min Max Unit ID Description

Table 23. Monitoring values

RU N READY

Lo cal

M4

Active faults

F0

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If you press the Enter push button for 2-3 seconds, the fault history will be restored. The number of

the symbol Hnº will change to 0.

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10. MAINTENANCE AND TROUBLESHOOTING

10.1 Maintenance

Maintaining the solar inverter VACON 8000 SOLAR is simple. It is recommended that the following
checks are carried out 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 the elements of the inverter.

• Check the tightness of connection screws on the terminals.

• Check that the fans operate correctly. Check if they need to be cleaned.

• Clean the ventilation grids.

• Check that the acoustic noise produced by the inverter has not increased.

If there is something wrong, please contact the installer.

10.2 Troubleshooting

The microprocessor for the Vacon solar inverter continuously monitors the running condition of the
inverter and the elements connected to it.
If the microprocessor finds any abnormal running values or that some of the elements do not work
correctly, the device issues an alarm signal, if the malfunction does not imply any kind of a safety
hazard for the inverter or the installation, and it issues a fault signal if there is any kind of a safety
hazard for the inverter or the installation.
Every indication of fault or alarm is shown on the control panel described in chapter 6. In the
control panel, the letter A (Alarm) or F (Fault) appears together with the order number of the Fault
or Alarm, the fault or alarm code and a short description.
The fault can be reset using the reset push button on the control panel.

Below you can find the fault and alarm codes, their causes and how to solve them.

Only a qualified electrician may carry out the maintenance work. There is risk of
electric shock.

No maintenance must be given unless the unit is reliably isolated from AC and
DC power sources.

Safety instructions included in chapter 1 must be followed.

THE SOLUTION FOR SOME OF THE PROBLEMS INDICATED HERE IMPLIES TO
PERFORM CHECKING INSIDE THE INVERTER, THE WIRES OF AC MAINS OR THE
DC WIRES IN THE SOLAR PANELS. THESE CHECKS HAVE TO BE CARRIED OUT
TAK ING 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.

9000.emf

9000.emf

9000.emf

9000.emf

9000.emf

MAINTENANCE AND TROUBLESHOOTING vacon • 76

24-hour support [phone] • Email: [e-mail]

10

Fault

code

Fault Possible cause Correcting measures

Auto

Reset

1

Overcurrent AFE has detected too high a current

(>4*IH) in the cables

X

2

Overvoltage The DC-link voltage has exceeded the

inverter limit. See User manual.

- high overvoltage spikes in supply

- Check DC voltage

X

3

Earth fault Current measurement has detected

that the sum of phase currents is not
zero.

- insulation failure in cables

- Check cables.

---

4

Inverter fault

---

5

Charging switch The charging switch is open, when the

START command has been given.

- faulty operation

- component failure

- Reset the fault and
restart.

- Should the fault re­occur, contact
your local distributor.

---

7

Saturation trip Various causes:

- defective component

- Cannot be reset from
the keypad.

- Switch off power.

- DO NOT RE-CON­NECT POWER!

- Contact your local
distributor.

---

8

System fault - component failure

- faulty operation
Note exceptional fault data record
Subcode in T.14:
S1 = Reserved
S2 = Reserved
S3 = Reserved
S4 = Reserved
S5 = Reserved
S6 = Reserved
S7 = Charging switch
S8 = No power to driver card
S9 = Power unit communication (TX)
S10 = Power unit communication
(Trip)
S11 = Power unit comm. (Measure­ment)

Reset the fault and
restart.
Should the fault re­occur, contact
your local distributor.

---

10

vacon • 77 MAINTENANCE AND TROUBLESHOOTING

Tel. [phone] • Fax [phone]

9

Undervoltage DC-link voltage is under the inverter

fault voltage limit. See user manual.

- most probable cause: too low a
supply voltage

- Inverter internal fault

- One of input fuse is broken.

- In case of temporary
supply
voltage break, reset
the fault and
restart the inverter

- Check the supply
voltage.

- If it is adequate, an
internal
failure has occurred.

- Check input fuses

- Check DC charge
function

---

10

Line Sync Fail Output line phase is missing.

Subcode in T.14:
S1 = Phase supervision diode supply
S2 = Phase supervision active front
end

Check supply voltage,
fuses and
cable.

X

11

Output phase
supervision

Output line phase is missing. Check supply voltage,

fuses and
cable.

---

13

Inverter under­temperature

Heatsink temperature is under –10

ºC

---

14

Inverter overtem­perature

Heatsink temperature is over 90

ºC

Overtemperature warning is issued
when the heatsink temperature
exceeds

85

ºC.

- Check the correct
amount and
flow of cooling air.

- Check the heatsink
for dust.

- Check the ambient
temperature.

---

18

Unbalance
(Warning
only)

Unbalance between power modules in
paralleled units.
Subcode in T.14:
S1 = Current unbalance
S2 = DC-Voltage unbalance

Should the fault re­occur, contact
your local distributor.

---

22

EEPROM check­sum
fault

Parameter save fault

- faulty operation

- component failure

Should the fault re­occur, contact
your local distributor.

---

24

Counter fault Values displayed on counters are

incorrect

Have a critical attitude
towards
values shown on coun­ters.

---

25

Microprocessor
watchdog fault

-faulty operation

- component failure

Reset the fault and
restart.
Should the fault re­occur, contact
your local distributor.

---

Fault

code

Fault Possible cause Correcting measures

Auto

Reset

MAINTENANCE AND TROUBLESHOOTING vacon • 78

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10

26

Start-up pre­vented

- Start-up of the inverter has been
prevented.

- Run request is ON when new appli­cation
is loaded to inverter

- Cancel prevention of
start-up if
this can be done safely.

- Remove Run
Request.

---

29

Thermistor fault The thermistor input of option board

has detected too high temperature

Check thermistor con­nection
(If thermistor input of
the option
board is not in use it
has to be
short circuited)

---

31

IGBT tempera­ture
(hardware)

IGBT Inverter Bridge over tempera­ture
protection has detected too high a
short term overload current

- Check loading.

X

32

Fan cooling Cooling fan of the inverter does not

start, when ON command is given

Contact your local dis­tributor.

---

35

Application Problem in application software Contact your distribu-

tor. If you
are application pro­grammer
check the application
program.

---

36

Control unit NXS Control Unit can not control

NXP Power Unit and vice versa

Change control unit

---

37

Device changed
(same type)

Option board or power unit changed.
New device of same type and rating.

Reset. Device is ready
for use.
Old parameter set­tings will be
used.

---

38

Device added
(same type)

Option board added. Reset. Device is ready

for use.
Old board settings will
be used.

---

39

Device removed Option board removed. Reset. Device no lon-

ger available.

---

40

Device unknown Unknown option board or inverter.

Subcode in T.1 4:
S1 = Unknown device
S2 = Power1 not same type as Power2

Contact the distributor
near to
you.

---

41

IGBT tempera­ture

IGBT Inverter Bridge overtemperature
protection has detected too high a
short term overload current

- Check loading.

X

Fault

code

Fault Possible cause Correcting measures

Auto

Reset

10

vacon • 79 MAINTENANCE AND TROUBLESHOOTING

Tel. [phone] • Fax [phone]

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
changed. Set
inverter parameters
again if
power unit changed.

---

45

Device added
(different type)

Option board of different type added. Reset

Set the option board
parameters
again.

---

48

Parameter Fault Parameter Fault Check parameters

value

---

49

Division by zero
in
application

Division by zero has occurred in appli­cation
programm

Contact your distribu­tor if
the fault re-occurs
while the
inverter is in run state.
If
you are application
programmer
check the application
program.

---

51

External Trip Trip signal from digital input. Remove fault situation

from
external device.

X

53

Fieldbus Board A Fieldbus card in slot D or E has sta-

tus
“Faulted”

Check installation.
If installation is cor­rect contact
the nearest distributor.

---

54

Slot Communica­tion

A option board in slot B,C,D or E has
status “Communication Lost”

Check board and slot.
Contact the nearest
Vacon distributor.

---

55

SB Board Fault A systembus card in slot D or E has

status “Faulted”

Check the System bus
Board

---

59

SB Heartbeat An inverter is activated as a slave

inverter
in array configuration without a
heartbeat signal on the bus, Hence,
no
master inverter active.

Check the System bus

---

64

MCC Fault Contactor acknowledgment is used

through digital input and close com­mand
is given without response within
the time set with parameter “MCont
FaultDelay”

Check the main power
switch of
the
Inverter and Acknowl­edge input.

---

Fault

code

Fault Possible cause Correcting measures

Auto

Reset

MAINTENANCE AND TROUBLESHOOTING vacon • 80

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10

70

LCL Temperature LCL Overtemp trip from digital input. Check the LCL filter

and signal
connection. Check fan

---

72

AC VoltMax Trip AC voltage on line side is above the

max limit.

Check AC Voltage

Delayed

73

AC VoltMin Trip AC voltage on line side is below the

min limit.

Check AC Voltage

Delayed

74

FreqOverLimit AC frequency on line side is above the

max limit.

Check AC Frequency

Delayed

75

FreqUnderLimit AC frequency on line side is below the

min limit.

Check AC Frequency

Delayed

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 Insulation

Delayed

83

Surge Alarm Surge alarm from digital input. Remove fault situation

from
external device.

---

85

Fieldbus Heartbeat signal from touchpad panel

is missing while running in array con­figuration.
Warning = inverter not active
Fault = inverter active

Check touchpad panel.
Check the
control place

Delayed

86

Input Switch Input Switch in wrong state Check the input Switch

---

90

High Voltage Time limit at HIGH voltage level

reached. Grid Code

Check grid voltage

---

91

Low Voltage Time limit at LOW voltage level

reached. Grid Code

Check grid voltage

---

92

High Frequency Time limit at HIGH frequency level

reached. Grid Code

Check grid frequency

---

93

Low Frequency Time limit at LOW voltage level

reached. Grid Code

Check grid frequency

---

94

Re Connect Time Grid has been faulty and Unit has

delay
when that is reconnection to grid.

Wait 0-10minutes
depending Grid
standard.

---

95

Emergency
Switching

Command for emergency stop
received
from digital input.

New run command is
accepted
after reset.

---

97

Power Limit
Warning

Power is limited by temperature.
Temperature
is over 75degrees

Check Cooling sys­tems.

---

Fault

code

Fault Possible cause Correcting measures

Auto

Reset

11

vacon • 82 APPENDIX A SINGLE LINE EXAMPLES

Tel. [phone] • Fax [phone]

11. APPENDIX A SINGLE LINE EXAMPLES

Sample diagrams of multimaster systems

NXV0400 without AC-section

APPENDIX A SINGLE LINE EXAMPLES vacon • 83

24-hour support [phone] • Email: [e-mail]

11

NXV0600 with AC-section

Table 24.

11

vacon • 84 APPENDIX A SINGLE LINE EXAMPLES

Tel. [phone] • Fax [phone]

NXV1000 without AC-section

APPENDIX B GROUNDING OVERVIEW vacon • 85

24-hour support [phone] • Email: [e-mail]

12

12. APPENDIX B GROUNDING OVERVIEW

Document ID:

Rev. B

Manual authoring:
[e-mail]

Vacon Plc.
Runsorintie 7
65380 Vaasa
Finland

Subject to change without prior notice
© 2012 Vacon Plc.

Find your nearest Vacon office

on the Internet at:

www.vacon.com

Find your nearest Vacon service centre

on the Extranet at:

www.extra.vacon.com