Kaco blueplanet 50.0 TL3 Basic Technical manual

Operation Instruction I
nEnglish translation of German original
KACO blueplanet 50.0TL3
KACO blueplanet 60.0TL3
These instructions form part of the product and must be carefully read, observed and stored in a place which is freely accessible at all
times.
Authorised electrician

Contents
English.................................................................... 3
Deutsch .................................................................. 29
Français .................................................................. 55
Español................................................................... 81
Portuguese ............................................................. 107
Italiano ................................................................... 133
Nederlands ............................................................ 159
Polski...................................................................... 185
Türkçe..................................................................... 211
Operating Instruction I
KACO blueplanet 50.0 TL3 KACO blueplanet 60.0 TL3
Page 2
Legal provisions
The information contained in this document is the property of KACO new energy GmbH. Publication, in whole
or in part, requires the written permission of KACO new energy GmbH.
KACO warranty
For current warranty conditions contact your system integrator. http://www.kaco-newenergy.com
Definitions on product designations
In these operating instructions, the product "Photovoltaic feed-in inverter" is referred to as "device" for ease of
reading.
Trademarks
All trademarks are recognised, even if not explicitly identified as such. A lack of identification does not mean
that a product or designation/logo is free of trademarks.

Contents
1 General information ........................................ 4
1.1 About this document ................................. 4
More information ...................................... 000
1.2 Layout of Instructions ................................ 4
1.2.1 Symbols used ................................. 4
1.2.2 Safety warnings symbols guide ...... 4
1.2.3 Additional information symbols..... 5
1.2.4 Symbols for instructions................. 5
1.3 Target group .............................................. 5
2 Safety .............................................................. 6
2.1 Proper use.................................................. 6
2.2 Protection features.................................... 7
3 Description of the device ................................. 8
3.1 Mode of operation..................................... 8
3.2 System layout ............................................ 8
11 Technical data ................................................. 236
11.1 Electrical data ............................................ 236
General Data.............................................. 000
11.2 Environmental data ................................... 238
11.3 Accessories ................................................ 239
4 Transportation and Delivery ............................ 10
4.1 Scope of delivery........................................ 10
4.2 Transporting the device............................. 10
4.3 Installation tool.......................................... 10
5 Assembly and preparation............................... 10
5.1 Choosing the installation location ............. 10
5.2 Unpacking the device................................. 12
5.3 Fastening the mount.................................. 12
5.4 Installing and securing the device.............. 13
6 Installation ...................................................... 15
6.1 General information .................................. 15
6.2 Opening the device.................................... 15
6.3 Surveying the connection area .................. 15
6.4 Making the electrical connection .............. 16
6.4.1 Requirement for supply lines and
fuse.................................................
16
6.5 Connecting the device to the power grid .... 17
6.5.1 Prepare the grid connection ........... 17
6.5.2 Make the grid connection............... 18
6.6 Connect PV generator to device.................. 19
6.6.1 Checking the PV generator for a
ground fault ....................................
19
6.6.2 Configuring the DC plug connector. 20
6.6.3 Designing the PV generator ............ 20
6.6.4 Connecting the PV generator.......... 21
6.7 Creating equipotential bonding................... 22
6.8 Sealing the connection area ........................ 22
7 Maintenance and troubleshooting..................... 22
7.1 Visual inspection.......................................... 22
7.2 Cleaning....................................................... 23
7.2.1 Cleaning the housing ...................... 23
7.3 Replacing the fan......................................... 24
7.4 Replacing the string fuses............................ 24
7.5 Shutting down for maintenance /
troubleshooting...........................................
25
7.6 Overvoltage protection ............................... 26
8 Decommissioning and dismantling .................... 26
8.1 Switching off the device .............................. 26
8.2 Disconnecting connections.......................... 26
8.2.1 AC connection................................. 26
8.2.2 DC connection................................. 27
8.3 Uninstalling the device ................................ 27
8.4 Disassembling the device ............................ 27
8.5 Packaging the device ................................... 27
8.6 Storing the device........................................ 28
9 Disposal............................................................. 28
10 Service and warranty......................................... 28
KACO blueplanet 50.0 TL3 KACO blueplanet 60.0 TL3
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Operating Instruction I
Photovoltaic feed-in inverter
EN

1General information
1.1 About this document
WARNING
Improper handling of the device can be hazardous!
1. You must read and understand the operating instructions in order to install and use the device safely!
Other applicable documents
During installation, observe all assembly and installation instructions for components and other parts of the system.
These instructions also apply to the equipment, related components and other parts of the system.
Some of the documents which are required to register your system and have it approved are included with the operating
instructions.
Storing the documents
These instructions and other documents must be stored near the system and be available at all times.
– The current version of the operating Instructions can be downloaded from www.kaco-newenergy.com.
English translation of German original
This document has been produced in several languages. The German-language version is the original version. All other
language versions are translations of the original version.
1.2 Layout of Instructions
1.2.1 Symbols used
General hazard Fire and risk of explosion
Electrical voltage Risk of burns
Earthing - ground conductor
1.2.2 Safety warnings symbols guide
DANGER
High risk
Failure to observe this warning will lead directly to serious bodily injury or death.
WARNING
Potential risk
Failure to observe this warning may lead to serious bodily injury or death.
CAUTION
Low-risk hazard
Failure to observe this warning will lead to minor or moderate bodily injury.
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CAUTION
Risk of damage to property
Failure to observe this warning will lead to property damage.
1.2.3 Additional information symbols
NOTE
Useful information and notes
Information that is important for a specific topic or objective, but that is not safety-relevant.
1.2.4 Symbols for instructions
↻Prerequisite for use
1. Carry out the next step
2. Additional action sequence
ðInterim result of the action
ðEnd result
1.3 Target group
All activities described in the document may only be carried out by specially trained personnel with the follow-
ing qualifications:
– Knowledge about how an inverter functions and operates
– Training in the handling of hazards and risks during the installation and operation of electrical units and
plants.
– Education concerning the installation and start-up of electrical devices and systems.
– Knowledge of applicable standards and directives.
– Knowledge and adherence to this document with all safety notices.
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2Safety
Before using the product for the first time, please read through the safety instructions carefully.
The electrician is responsible for observing all existing standards and regulations. The following applies:
– Keep unauthorised persons away from the device and/or system.
– In particular, making sure that the locally applicable version of the standard 1 "Requirements for special in-
stallations or locations – solar photovoltaic (PV) power supply systems" is observed.
– Ensure operational safety by providing proper grounding, conductor dimensioning and appropriate protec-
tion against short circuiting.
– Observe all safety instructions on the product and in these operating instructions.
– Switch off all voltage sources and secure them against being inadvertently switched back on before per-
forming visual inspections and maintenance.
– When taking measurements on the live device:
– Do not touch the electrical connections
– Remove all jewellery from wrists and fingers
– Ensure that the testing equipment is in safe operating condition.
– Modifications to the surroundings of the device must comply with the applicable national and local stand-
ards.
2.1 Proper use
The device is a transformerless PV inverter which converts the direct current of the PV generator into grid-com-
patible three-phase alternating current and then feeds the three-phase alternating current into the public
power grid.
The device is built using state-of-the-art technology and in accordance with the recognized safety rules. Never-
theless, improper use may cause lethal hazards for the operator or third parties, or may result in damage to the
product and other property.
The device is intended for indoor and outdoor applications and may only be used in countries for which it has
been approved or for which it has been released by KACO new energy and the grid operator. 2
Operate the device only with a permanent connection to the public power grid. The country and grid type se-
lection must be commensurate with the respective location and grid type.
The requirements of the grid operator must be met for grid connection to take place. The permission of the rel-
evant authorities may also be required in order to secure authorisation to connection to the grid.
The enclosed documentation is an integral part of the product. The documentation must be read, observed and
stored in a place which is freely accessible at all times.
The name plate must be permanently attached to the product.
Any other or additional use of the device shall be regarded as improper.
This includes:
– Use of a distribution system that is not described (grid type)
– Use of sources other than PV-strings.
– Mobile use
1Country Standard
EU Harmonised document - HD 60364-7-712 (European im-
plementation of the IEC standard)
USA PV section of NEC 690 and sections in article 100, 690.4,
690.6 and 705.10
Tab.1: Examples of standards specific to business premises
2WARNING!The blueplanet 60.0 TL3 is not intended for use in residential areas and cannot ensure ad-
equate protection of radio reception in such environments.
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– Use in rooms where there is a risk of explosion
– Use in direct sunlight, rain or a storm or other harsh environmental conditions
– Outdoor use in environmental conditions that exceed the limits stated in the technical specifications >En-
vironmental data.
– Operation outside the specification intended by the manufacturer
– Overvoltage on the DC connection of over 1,100 V
– Modifying the device
– Standalone mode
2.2 Protection features
The following monitoring and protection functions are built-in:
– RCMU (Residual Current Monitoring Unit)
– Overvoltage conductor / varistor to protect the power semiconductors from high-energy transients on the
grid and generator sides.
– Device temperature monitoring system
– EMC filter to protect the inverter from high-frequency grid interference
– Grid-side varistors grounded to earth to protect the product against burst and surge pulses
– Anti-islanding detection according to the current standards.
– Isolation detection / residual current monitoring and disconnection function to detect isolation faults
NOTE
If the device is connected, the overvoltage conductors / varistors contained in the device have an impact on the
electrical system insulation resistance test as per HD 60364-6 / IEC 60364-6 Low-voltage installations- Part 6:
Verification.
IEC 60364-6 6.4.3.3 describes two options for this case. The first option is to disconnect devices with an over-
voltage conductor or, if this is not practicable, then the test voltage can be reduced to 250V.
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3Description of the device
3.1 Mode of operation
The device converts the DC voltage generated by the PV-modules into AC voltage and feeds this into the power
grid. The starting procedure begins when there is sufficient sunlight and a specific minimum voltage is present
in the device. The feed-in process begins once the PV generator has passed the insulation test and the grid
parameters are within the requirements imposed by the grid operator for a specific monitoring time. If, as it
gets dark, the voltage drops below the minimum voltage value, feed-in mode ends and the device switches off.
3.2 System layout
KWhKWh
PV generator PV-Generator
Inverter witch DC
isolator switch*) &)
circuit-breaker
Load
Feed-in meter
Reference
counter switch
Grid monitoring point
Line protection Line protection
selective main switch selective main switch
Inverter witch DC
isolator switch*
&)circuit-breaker
Fig.1: Circuit diagram of a system with two inverters
Key Definition / information on the connection
PV generator The PV generator converts the radiant energy of sunlight
into electrical energy.
Inverter with circuit-breaker The PV generator is connected to the device's DC connec-
tion.
DC isolator switch 3Use the DC isolator switch to disconnect the device from
the PV generator.
Line protection The circuit breaker is an overcurrent protection device.
Feed-in meter The feed-in meter is to be specified and installed by the
power supply company. Some power supply companies also
allow the installation of your own calibrated meters.
Selective main switch The selective main switch is to be specified by the power
supply company.
3Device version S: An external DC isolator switch is required outside the devices.
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Key Definition / information on the connection
Reference counter The reference counter is to be specified and installed by the
power supply company. This measures the amount of en-
ergy drawn.
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4Transportation and Delivery
Every product leaves our factory in perfect electrical and mechanical condition. Special packaging ensures that
the devices are transported safely. The shipping company is responsible for any transport damage that occurs.
4.1 Scope of delivery
Check the equipment included
1. Inspect the device thoroughly.
2. Immediately notify the shipping company in case of the following:
– Damage to the packaging that indicates that the device may have been damaged.
– Obvious damage to the device.
3. Send a damage report to the shipping company immediately.
4. The damage report must be received by the shipping company in writing within six days following receipt
of the device. We will be glad to help you if necessary.
4.2 Transporting the device
CAUTION
Hazard due to impact; risk of breakage to the device!
1. Pack the device securely for transport.
2. Transport the device using the intended carrying handles of the packaging box.
3. Do not expose the device to any shocks.
4.3 Installation tool
The codes given in the table below are used in all usage instructions for assembly/installation/maintenance and
disassembly for the tools and tightening torques being used.
Code (s) Shape of the
connector
W External hexagon
A Internal hexagon
T Torx
S Slot
Tab.2: Key and description of tool codes
Outer contour
Tightening torque
Spanner size or number
Nm
Fig.2: Form pattern
5Assembly and preparation
5.1 Choosing the installation location
DANGER
Risk of fatal injury due to fire or explosions!
Fire caused by flammable or explosive materials in the vicinity of the device can lead to serious injuries.
1. Do not mount the inverter in potentially explosive atmospheres or in the vicinity of highly flammable ma-
terials.
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CAUTION
Property damage due to gases that have an abrasive effect on surfaces when they come into contact with
ambient humidity caused by weather conditions.
The device housing can be seriously damaged due to gases in combination with air humidity resulting from weather con-
ditions (e.g. ammonia, sulphur).
1. If the device is exposed to gases, the installation must be carried out at observable locations.
2. Perform regular visual inspections.
3. Immediately remove any moisture from the housing.
4. Ensure adequate ventilation at the installation location.
5. Immediately remove dirt, especially on vents.
6. Failure to observe these warnings may lead to device damage which is not covered by the manufacturer warranty.
NOTE
Access by maintenance personnel for service
Any additional costs arising from unfavourable structural or mounting conditions shall be billed to the cus-
tomer.
Installation space
– As dry as possible, climate-controlled, the waste heat must be dissipated away from the device.
– Unobstructed air circulation.
– Close to the ground, accessible from the front and sides without requiring additional resources
– Protected on all sides against direct weather exposure and sunlight (thermal heating) in outdoor areas. Implementa-
tion where necessary via constructional measures, e.g. wind breaks.
– For easy operation during installation, ensure that the display is slightly below eye level.
Installation surface
– Must have adequate load-bearing capacity
– Must be accessible for installation and maintenance
– Must be made out of heat-resistant material (up to 90 °C )
– Must be flame resistant
– Minimum clearances to be observed during installation: [Fig. 8 [}[13]
Fig.3: Device for outdoor installation
<20°
Fig.4: Intended installation location
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5.2 Unpacking the device
CAUTION
Risk of injury caused by excessive physical strain.
Lifting the device, for transport, relocation and assembly, can result in injuries (e.g. back injuries).
1. Only lift the device using the openings provided.
2. The device must be transported and installed by at least 2 persons.
DETAIL Z4:1
Z
2
1
3
4
5
6
Fig.5: Open the package Fig.6: Setting the device upright
Legend
1 Cover 4 Base
2 Side section - upper 5 Side section - lower
3 Clamp (4x) 6 Cardboard packaging with mount and mounting kit
↻The device is transported to the installation location.
1. Remove the plastic band from the pallet and packaging.
2. Pull the clamp off the packaging.
3. Pull the hood upwards to remove it and place the cardboard packaging to one side together with the mount and ac-
cessories.
4. Set the unit with base and side sections upright.
5. Remove the top side section and base from the device.
ðIf the unit is in the correct installation position: Proceed with the installation of the mount.
5.3 Fastening the mount
WARNING
Hazard when using unsuitable fixing materials!
If unsuitable fixing materials are used, the device could fall and persons in front of the device may be seriously
injured.
1. Use only fixing materials that are suitable for the mounting base. The fastening materials supplied are only
suitable for masonry and concrete.
2. Only install the device in an upright position.
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1
2
3
4
5
6
7
111 mm
A
A
C
B
D
Fig.7: Minimum clearances for wall mounting
**
**
8
1
400 mm
250 mm
600 mm
1150 mm
Fig.8: Wall mounting
Key
1 Mount 5 Screw for securing purposes (1x)
2 Fixings for mounting [S12 – Ø 12mm/ 90mm] 6 Bracket to prevent device displacement
3 Lock washer 7 Marking as installation aid
4Screws for mounting (5x) [SW 13 / [See section5.3}
[12]]
8 Seating recess
A Minimum clearance: 120 mm (without device370
mm )
recommended distance400 mm (without device 550
mm *)
C Minimum clearance: 500 mm
B Minimum clearance: 300 mm D Recommended clearance: 550 mm
↻Cardboard packaging with mount and mounting kit removed from the packaging and opened.
1. Mark the mounting position on the wall surface according to the position of the mount by drawing a line.
2. Mark the positions of the drill holes using the slot in the mount.
.NOTE:The minimum clearances between two devices, or the device and the ceiling or floor have
already been taken into account in the diagram.
3. Fix the mount to the wall using suitable mounting fixtures from the mounting kit.
.NOTE:Make sure that the mount is oriented correctly.
ðProceed with the installation of the device.
5.4 Installing and securing the device
CAUTION
Risk of injury from improper lifting and transport.
If the device is lifted improperly, it can tilt and result in a fall.
1. Always lift the device vertically using the openings provided.
2. Use a climbing aid for the chosen installation height.
3. Wear protective gloves and safety shoes when lifting and lowering the device.
4. Do not attach the unit to the web of the upper side of the housing.
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NOTE
Power reduction due to heat accumulation!
If the recommended minimum clearances are not observed, the device may go into power regulation mode
due to insufficient ventilation and the resulting heat build-up.
1. Observe minimum clearances and provide for sufficient heat dissipation.
2. All objects on the device housing must be removed during operation.
3. Ensure that no foreign bodies prevent heat dissipation following device installation.
Lifting and installing the device
↻The mount has been installed.
1. Lift the device using the side recesses. Observe the device's centre of gravity!
.NOTE:Do not lift the device by the lid or cover!
2. Suspend the device in the mount using the recess on the rear of the device. ( [Fig. 8 [}[13]).
.NOTE:Keep in mind that the lower marking on the housing must protrude over the upper outer con-
tour of the mount. Ensure that the upper marking is flush with the upper edge of the outer contour
when lowering the device. The outer contour of the mount must be flush with the outer contour of
the housing.
3. Insert the screw provided into the lug of the mount and secure the device to prevent it from being lifted off [ T30 /
2 Nm]. ( [Fig. 7 [}[13]).
.NOTE:Alternatively: At this point, the screw described above can be replaced by a special screw as
anti-theft protection.
ðDevice is installed. Proceed with the electrical installation.
CAUTION
Property damage as a result of condensation
During pre-assembly of the devices, moisture can penetrate into the interior via the DC plug connectors and the dust-pro-
tected threaded connections. The resulting condensate can cause damage to the device during installation and start-up.
üKeep the device closed during pre-assembly and do not open the connection area until you perform installation.
1. Seal off any plug-in connections and screw fittings using sealing covers.
2. Prior to installation, check the inner area for condensation and if necessary, allow it to dry sufficiently before installa-
tion.
3. Immediately remove any moisture from the housing.
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6Installation
6.1 General information
↻NOTE:S version: The device is shut down externally at the string
combiner.
1. Switch the DC isolator switch from 1 (ON) to 0 (OFF).
2. Press in the safety catch (1) from behind.
3. Attach the hanging lock (2) to the safety catch.
.DANGER!A measurement in a live state may be required for tests.
Only appropriately qualified electricians authorised by the mains
supply network operator are permitted to open and maintain the
device.
.DANGER!Observe all safety regulations against harmless contact
with live materials.
1
2
Fig.9: Lock DC circuit breakers to pre-
vent reconnection.
6.2 Opening the device
↻Mount the device to the wall.
↻Wipe off any moisture on the housing door frame to nullify any potential liability
this could cause.
1. Open the housing door by unlocking the upper and lower lock with the double-
bit key provided.
2. Open the housing door carefully.
ðProceed with the installation of the device.
Open
Close
Close
Open
Fig.10: Open the door lock
6.3 Surveying the connection area
The connection for the AC supply is located inside the housing. The DC input source is connected either inside
or outside the housing depending on the device version (S, Basic, M or XL).
PV-
PV+
1
5
2
Fig.11: Connection area: blueplanet 50.0 TL3 Basic + M
1
3
4
5
Fig.12: Connection area: blueplanet 60.0 TL3 XL
Key
1 DC isolator switch (not present in S version) 4 Cable fitting for AC connection
2 Cable fitting for DC connection (M version) 5 Earthing bolt
3 Connector for DC connection (XL version)
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6.4 Making the electrical connection
NOTE
Select conductor cross-section, safety type and safety value in accordance with the following basic
conditions:
Country-specific installation standards; power rating of the device; cable length; type of cable installation; local
temperature
NOTE
For missing information on tightening torques, please refer to the complete manual version on our homepage.
6.4.1 Requirement for supply lines and fuse
DC-side S variant M variant B variant X variant FR - X
Max. conductor
cross-section
95 mm² (max.
120 mm²)
95 mm² (max.
120 mm²)
95 mm² (max.
120 mm²)
- -
Min. cable cross-
section
in accordance with local installation standards
Length of insula-
tion to be stripped
off
Depending on the cable lug 15 mm
Tightening torque 15-22 Nm - Nm - Nm
Recommended
cable type
Solar cable
Fuse size (electrical
data)
- 1100V gPV max. 20A
Fuse size (mechan-
ical data)
mm 14 x 51 mm
Combiner box External with DC isolator switch preferable Integrated DC isolator switch
Cable diameter for
cable fitting
15 - 21 (M32) mm 1.8 - 2.75 (2mm² - 6mm²) mm
Fitting for DC con-
nection
M32 SW15
Torque for cable
fitting
4 Nm 1.8 Nm
AC-side
Max. conductor cross-section 95 mm²
Max. cable cross-section (without wire sleeves) 95 mm² (AL or CU)
Min. cable cross-section in accordance with local installation standards
Length of insulation to be stripped off 25 mm
Tightening torque 10 Nm
Connection type Screw terminal
Ground conductor connection M8
Fuse protection for installation provided by customer min. 100 A / max.125 A
Fitting for AC connection M63
Cable diameter for cable fitting 32 - 42 mm
Torque for cable fitting 20 Nm
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Interfaces
Cable diameter for cable fitting 11 - 17 (M25) 5 - 9.5 (M16) mm
RS485 connection type Connector
RS485 terminal cable cross-section 0.25 - 1.5 mm²
Ethernet connection type RJ45
Torque for cable fitting 4 (M25) 1.5 (M16) Nm
Overvoltage protection Type [KACO article no.]
Overvoltage of DC plugs (integrated in XL version) VAL-MS-T1/T2 1000DC-PV-ST - 2801162
[3010608] - SPD I + II
VAL-MS 1000DC-PV-ST – 2800624 [ ] - SPD II
Overvoltage protection for AC plug (option) 7P.10.8.275.0012 [3010610] – SPD I + II
7.P.20.8.275.0020 [ ] – SPD II
Overvoltage protection for AC plug + base for a 5-core
connection (option)
F-MS-T1/T2 50 ST – 2800191 – SPD I + II (Phoenix
Contact) [3013681]
F-MS 12 – 2817987 – SPD II - (Phoenix Contact)
[3013682]
6.5 Connecting the device to the power grid
6.5.1 Prepare the grid connection
TN-S-System, TN-C-S-System, TT-System
↻Connection cable with 5 strands is provided on the device.
↻Nominal grid voltage matches the VAC nom name plate details.
1. Unfasten the cable fitting for the AC connection [ W_68].
2. Remove the outer cladding of the AC cables.
3. Push an M8 cable lug onto the PE line.
4. Remove the cover of the AC filter using the 4 screws[ T_15].
5. Unscrew the screws on the contact bridge and remove the contact bridge[
_T20].
6. Insert the AC cables through the cable fitting into the connection area.
7. Strip the AC lines [approx. 25 mm].
ðMake the grid connection.
1
4
2
3
Fig.13: 5-core connection
1 Cover
2 Screws for contact bridge
3 Contact bridge
4 Earthing bolt
13
4
Fig.14: Connection terminals - basic version
PV-
PV+
1
3
4
2
Fig.15: Connection terminals - M version
PV-
PV+
14
Fig.16: Connection terminals S version
Key
1 AC connection terminal 4 DC connection with protection against contact
2 Base AC overvoltage protection 5 Base DC overvoltage protection
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3 DC isolator switch
TN-C system
↻Connection cable with 4 wires is provided on the device.
↻Nominal grid voltage matches the VAC nom name plate details.
1. Unfasten the cable fitting for the AC connection [ W_68].
2. Remove the outer cladding of the AC cables.
3. Insert the AC cables through the cable fitting into the connection area.
4. Strip the AC lines [approx. 25 mm].
ðMake the grid connection.
DC-side
AC side
Fig.17: Terminals
1
3
4
2
5
6
Fig.18: blueplanet 50.0TL3 XL version
1
3
4
2
6
5
Fig.19: Connection area: blueplanet 60.0 TL3 XL
Key
1 AC connection terminal 4 DC connection
2 Base AC overvoltage protection 5 DC overvoltage conductor (SPD), type 1+2
3 DC isolator switch 6 DC fuse holder
6.5.2 Make the grid connection
4-core connection, TN-C system
↻Grid connection is prepared.
1. Connect lines in accordance with the labels on the name plate on the screw ter-
minal [ T_45/ 10 Nm].
2. Check secure fit of all connected cables.
3. Tighten the cable fittings [ W_66 / 13 Nm].
ðThe device is connected to the power grid.
Fig.20: 4-pole connection
NOTE
An AC-side disconnection unit must be provided during the final installation stage. This disconnecter mechan-
ism must be installed so that it can be accessed at any time without obstruction.
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NOTE
If an external residual current circuit breaker is required due to the installation regulation, a type A residual
current circuit breaker is to be used.
When using type A, the insulation threshold must be set to greater than/equal to (≥) 200kOhm in the "Para-
meters" menu. Menu.
If you have any questions about the appropriate type, please contact the installer or our KACO new energy cus-
tomer service.
NOTE
When the line resistance is high, i.e. long cables on the grid side, the voltage at the grid terminals of the device
will increase in feed-in mode. If the voltage exceeds the country-specific grid overvoltage limit value, the device
switches off.
1. Ensure that the cable cross-sections are sufficiently large or that the cable lengths are sufficiently short.
6.6 Connect PV generator to device
6.6.1 Checking the PV generator for a ground fault
DANGER
Risk of fatal injury due to electric shock!
Severe injury or death will result if the live connections are touched. When there is sunlight present on the PV
generator, there is DC voltage on the open ends of the DC cables.
1. Only touch the PV generator cables on the insulation. Do not touch the exposed ends of the cables.
2. Avoid short circuits.
3. Do not connect any strings with a ground fault to the device.
NOTE
The threshold value from which the insulation monitor reports an error can be set in the “Parameters”
menu.
Ensure that there is no ground fault
1. Measure the DC voltage between the protective earth (PE) and the positive cable of the PV generator.
2. Measure the DC voltage between the protective earth (PE) and the negative cable of the PV generator.
ðIf stable voltages can be measured, there is a ground fault in the DC generator or its wiring. The ratio between
the measured voltages gives an indication as to the location of this fault.
3. Rectify any faults before taking further measurements.
4. Measure the electrical resistance between the protective earth (PE) and the positive cable of the PV generator.
5. Measure the electrical resistance between the protective earth (PE) and the negative cable of the PV generator.
ðIn addition, ensure that the PV generator has a total insulation resistance of more than 2.0 MOhm, since the
device will not feed in if the insulation resistance is too low.
6. Rectify any faults before connecting the DC generator.
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6.6.2 Configuring the DC plug connector
d
c
ab
12
5
6
Fig.21: Insert wires
3
4
Fig.22: Slide insert into sleeve
7
Fig.23: Check fastening
Key
1 Wire for DC connection 5 Cable fitting
2 Spring 6 Contact plug
3 Insert 7 Coupling
4 Sleeve
↻Connection area opened.
↻NOTE:Before proceeding with the isolation ensure that you do not cut any individual wires.
1. Insert isolated wires with twisted ends carefully up to the connection.
.NOTE:Wire ends must be visible in the spring.
2. Close the spring so that the spring latches.
3. Slide insert into sleeve.
4. Secure and tighten the cover on the cable fitting [ W_15/ 1.8 Nm]
5. Join insert with contact plug.
6. Check latch by lightly pulling on the coupling.
ðMake the electrical connections.
NOTE
The permissible bending radius of at least 4x the cable diameter should be observed during install-
ation. Excessive bending force may negatively impact the protection rating.
1. All mechanical loads must be absorbed in front of the plug connection.
2. Rigid adaptations are not permitted on DC plug connectors.
6.6.3 Designing the PV generator
CAUTION
Damage to components due to faulty configuration
In the expected temperature range of the PV generator, the values for the no-load-voltage and the short circuit current
must never exceed the values for Udcmax and Iscmax in accordance with the technical data.
1. Observe limit values in accordance with the technical data.
NOTE
Type and configuration of the PV modules.
Connected PV modules must be dimensioned for the DC system voltage in accordance with IEC 61730 Class A,
but at least for the value of the AC grid voltage
1 | General information Operating Instruction I
KACO blueplanet 50.0 TL3 KACO blueplanet 60.0 TL3
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