Installation and operating manual
EN
Smart
connections.
Installation and
Operating Manual
PIKO Inverter
4.2 | 5.5 | 7.0 | 8.3 | 10.1
LEGAL NOTICE
KOSTAL Solar Electric GmbH
Hanferstrasse 6
79108 Freiburg i. Br.
Germany
Tel. +49 (0)761 477 44 - 100
Fax +49 (0)761 477 44 - 111
www.kostal-solar-electric.com
Exclusion of liability
All names of usage, trade names, product names or other designations given in
this manual may also be legally protected even without special labelling (e.g. as
a trademark). The KOSTAL Solar Electric GmbH assumes no liability or guarantee
for their free usability.
The illustrations and texts have been compiled with great care. However, the
possibility of errors cannot be ruled out. The compilation is made without any
guarantee.
Software version above FW: 04.03
General note on gender equality
The KOSTAL Solar Electric GmbH is aware of how language impacts on gender
equality and always makes an effort to reflect this in documentation. Nevertheless,
for the sake of readability we are unable to use non-gender-specific terms throughout and use the masculine form instead.
© 2013 KOSTAL Solar Electric GmbH
All rights reserved by the KOSTAL Solar Electric GmbH, including those of reproduction by photocopy and storage in electronic media. Commercial use or distribution of
the texts, displayed models, diagrams and photographs appearing in this product is
not permitted. This manual may not be reproduced, stored, transmitted or translated
in any form or by means of any medium - in whole or in part - without prior written
permission.
Contents
1
Notes on this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3
EU Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4
Safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Warning symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Signal words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Safety markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4 Types of danger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6
Transport and storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7
Unit and system description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.3 Connecting the AC side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4 Earth connection (only for France) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.5 Connecting the DC side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.6 Connect communication components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.7 Closing the housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.8 Set initial commissioning and country of use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.9 Installing accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.10 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14
15
16
16
18
18
20
21
21
29
31
9
Commissioning and de-commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1 Switching on the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2 Setting up communication and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3 Handover to the operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.4 Disconnecting the inverter /decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.5 Servicing/maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.6 Disassembly and disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
32
32
37
38
38
40
10
Inverter operating characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.1 Display field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.2 Determine the operating status (operating LEDs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.3 Determining the operating status (display) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.4 Displaying operating values and changing settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.5 Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
40
40
41
41
41
44
11
System monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.1 Logging into the web server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.2 Downloading log data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.3 Display log data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.4 End data transfer to a solar portal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47
47
48
48
49
12
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.3 Type plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.4 Warranty and service information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50
50
52
53
53
7
7
7
7
7
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
3
1 Notes on this manual
Thank you for choosing a solar inverter PIKO from
KOSTAL Solar Electric GmbH!
We hope you enjoy consistently high energy yields with
the PIKO inverter and your photovoltaic system.
If you have any technical questions, please call our
service hotline: +49 (0)761 477 44 - 222
1
Notes on this manual
Read this manual carefully in its entirety. It contains
important information on the installation and operation
of the inverter. Pay particular attention to the
instructions regarding safe usage. KOSTAL Solar
Electric GmbH assumes no liability for damages arising
from the non-observance of this manual.
This manual is an integral part of the product. It only
applies to solar inverters PIKO from KOSTAL Solar
Electric GmbH. Keep this manual and give it to the new
owner should you pass it onto a new operator.
The installer as well as the user must always have
access to this manual and must be familiar with its
contents, particularly the safety instructions.
Target groups
Exclusion of liability
Any use that differs from or goes beyond the stated
intended purpose is considered inappropriate. The
manufacturer accepts no liability for any damage
resulting from this. Modifications to the inverter are
prohibited. The inverter may only be used if safe to
operate and in technically perfect condition. Any
instance of misuse will cause the termination of the
warranty, guarantee and general liability of the
manufacturer.
Only a qualified electrician may open the device. The
inverter must be installed by an electrician who is
responsible for observing the applicable norms and
regulations. Work that could affect the electrical power
system of the respective utility company at the site of
the solar energy feed-in may only be carried out by
qualified electricians expressly authorised (licensed) by
the utility company.
This includes changes to the factory pre-set
parameters. The installer must always observe the
regulations of the utility company. The utility company's
specifications must always be observed when setting
the parameters, since otherwise the ENS (grid
monitoring) will no longer function correctly.
This manual, especially chapters 8 (‹Installation›) and 9
(‹Commissioning and de-commissioning›), are intended
for specialist tradespersons. Information relevant for
the operator can be found in chapters 10 (‹Inverter
operating characteristics›) and 11 (‹System
monitoring›).
Information concerning your safety or that of the unit is
highlighted especially.
2
Proper use
The inverter PIKO converts direct current into
alternating current and supplies it to the public mains
grid. The device may only be used in grid-connected
photovoltaic systems within the permissible power
range and under the permissible environmental
conditions. The device may only be operated in PV
systems in which no electrical pole is earthed. The
device is not intended for mobile use.
Inappropriate use can be hazardous and lead to injury
or even death of the user or third parties. Material
damage to the device and other equipment can also
occur. The inverter may therefore only be used for its
intended purpose.
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
5
3 EU Declaration of Conformity
3
EU Declaration of Conformity
EU Declaration of Conformity
The company
KOSTAL Solar Electric GmbH
Hanferstraße 6
79108 Freiburg i. Br., Deutschland
hereby declares that the inverters
PIKO 4.2 (DCS), PIKO 5.5 (DCS), PIKO 7.0 (DCS, AD),
PIKO 8.3 (DCS, AD), PIKO 10.1 (DCS, AD)
to which this declaration refers, conform to the following guidelines and standards.
Directive 2004/108/EC on the approximation of the laws of the Member States relating to
electromagnetic compatibility
DIRECTIVE 2006/95/EC on the harmonisation of the laws of Member States relating to
electrical equipment designed for use within certain voltage limits
Application of the CE mark in accordance with Annex III, Section B: 2013
EN 61000-3-2:2006/A1:2009/A2:2009 (Harmonic currents)
EN 61000-3-3:2008 (Flicker)
EN 61000-6-2:2005/AC:2005 (Interference resistance for industrial environments)
EN 61000-6-3:2007/A1:2011 (Interference emission for domestic environments)
EN 62109-1: 2010 (Safety of converters for use in photovoltaic energy systems) - Part 1
EN 62109-2: 2011 (Safety of converters for use in photovoltaic energy systems) - Part 2
This declaration applies to all identical copies of this product. This declaration loses its validity if
KOSTAL Solar Electric GmbH – 2013-05-03
Werner Palm
(managing director)
Dr. Armin von Preetzmann
(Bereichsleiter Entwicklung)
instructions in the product documentation provided must be observed!
Fig. 1: EU Declaration of Conformity
6
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
4 Safety instructions
4
Safety instructions
Safety instructions have been incorporated into the
instruction text.
These safety instructions tell you about possible risks.
Each safety instruction consists of the following
elements:
Element
Example
4.2 Signal words
Signal words are used to identify the severity of the
danger.
These signal words are used in this manual:
Danger: Serious injuries possibly resulting in death may
occur.
Warning: Minor injuries or severe damage to property
may occur.
Warning symbol
Attention: Minor damage to property may occur.
Signal word
Danger
4.3 Safety markings
Type of danger
Risk of death due to electrical shock!
Corrective
actions
Always disconnect the device from the power
supply during installation and before
maintenance and repairs and lock it to prevent
it being switched back on.
The labels and markings attached to the housing by the
manufacturer may not be changed or removed.
4.4 Types of danger
Table 1: Structure of the safety instructions
Before working on an inverter, the device must always
be de-energised.
4.1 Warning symbols
The inverter is only de-energised after the following
work steps have been carried out.
Warning symbols identify the type of danger.
The following warning symbols are used:
Danger due to electrical shock
IMPORTANT INFORMATION
These work steps must be performed before carrying
out any work on the inverter!
1.
OFF
ON
Switch off DC switch
Danger due to electromagnetic fields
2.
OFF
Danger due to burns
Danger due to electrical discharge!
With an indication of the discharge duration
5 min of the capacitors following disconnection of
the inverter
Switch off
line circuit breaker
For internal consumption:
Switch off line circuit breaker for
the control of internal
consumption.
3.
Secure it against reactivation.
4.
Disconnect DC lines
5.
Wait five minutes
(discharge time of the capacitors)
Other dangers
Table 2: Warning symbols
5 min
Table 3: De-energise the inverter
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
7
5 Scope of delivery
The following dangers exist when working on the
inverter:
— 1 sealing cap (5-pin) for sealing the AC terminal
(mandatory in Italy) (6)
Danger due to electrical shock!
Always disconnect the device from the power
supply during installation and before
maintenance and repairs (see Table 3).
— Installation accessories: 4 screws DIN 571 A2
6×45, 4 screw anchors with a diameter of 8 mm
and length of 40 mm, 1 tapping screw DIN 7516
form A galvanised M4×10) (7)
Danger due to electromagnetic fields!
Persons with pacemakers, metallic implants or
hearing aids should avoid proximity to
systems with inverters.
— 2 wire jumpers for parallel connection (not possible
on all devices) (8)
Risk of burns from hot parts!
Some of the inverter components can reach
temperatures of over 80 °C during operation.
Do not touch hot components.
— Plug seals for the screw connection for the network
cable (9)
— 2 insulating caps (10)
— Max. 3 counterparts for plug-in connectors (11)
(each DC input: 1 × plug, 1 × socket)
Risk of fire due to hot parts!
Be absolutely sure to observe the conditions
in the "Installation" chapter (page 15) when
choosing the installation location.
Burns from arcs!
Cables must never be removed from the
device during operation as this can cause
dangerous arcs.
First de-energise the DC side, then remove
plug-in connectors!
5 min
1
11
2
Danger due to electrical discharge!
Wait five minutes after de-energising the
inverter!
10
l
ua
an
M
r
se
U
3
8
5
Scope of delivery
The packaging contains:
7
4x
1x
6
L1 L2 L3 N PE
5
— 1 inverter (1)
— 1 wall mount (not for replacement devices) (2)
Fig. 2: Scope of delivery
— 1 short manual (3)
— 1 safety notes (4)
— 1 CD containing operating instructions (5)
8
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
S
4
af
et
y
N
o
Table 4: Warning symbols
9
te
s
Warning! Property damage!
Property damage to the device, lost earnings
or increased telephone fees can result.
The instructions refer precisely to the type of
and remedy for potential property damage.
6 Transport and storage
6
Transport and storage
The function of the inverter has been tested and it has
been carefully packed prior to delivery. Upon receipt,
check the delivery for completeness and any transport
damage. Complaints and damage claims are to be
directly addressed to the shipping company.
ATTENTION
Risk of damage when the inverter is placed on its
underside.
• Always place the inverter on its rear side (cooling
elements) after unpacking.
If stored for a longer period before installation, all
components of the inverter must be kept dry and dustfree in the original packaging.
1
1
Fig. 3: Recessed grips PIKO inverter
Depending upon the frame size, recessed grips (1)
have been integrated to the left and right for better
transport of the PIKO inverter.
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
9
7 Unit and system description
7
Unit and system description
Function
1
2
3
Fig. 5: Control panel
4
5
6
7
8
Fig. 4: PIKO Inverter
1
2
3
4
5
6
7
8
Screws
Cover
Display
Housing
Plug-in connectors for connecting the solar modules
DC switch
Cable openings for optional communication
Opening for the mains cable
The PIKO solar inverter is a powerful and transformerless string inverter. It converts direct current generated
by the photovoltaic modules into symmetrical, threephase alternating current and supplies it to the public
power grid. Power generation independent of the
public grid (island operation) is not possible.
10
Through three-phase technology,
PIKO 4.2/5.5/7.0/8.3/10.1 unite the stability and
durability of central inverters with the flexibility and the
high degree of efficiency of transformer-less string
inverters.
In order to improve the degree of efficiency,
PIKO 4.2/5.5/7.0/8.3/10.1 with a lower input power
(less than 10 percent of the rated output) use only one
or two phases for current feed-in. The device selects
the phase on a random basis each time.
The PIKO inverters are fitted with an integrated DC
switch. No external break switch is therefore required,
unless specified by local country laws (example
France). The solar modules are connected to the
inverter via plug-in connectors.
The inverters PIKO are available in various output sizes
(see table 22, page 50) and offer you maximum
flexibility in configuring your solar energy system. This is
achieved through a broad DC input voltage range,
independent MPP regulators for each input, which
enable the connection of solar modules in various
combinations (alignment, inclination, quantity, type). In
order to conveniently display the yields and production
data of your photovoltaic system, the inverter has an
integrated web server, see chapter 8.8.1.
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
7 Unit and system description
Arc detection
Acknowledge malfunction
Arcs can occur in a PV system. These arcs can cause
damage. The inverters PIKO 7.0 AD/8.3 AD/10.1 AD
are equipped with arc detection.
The DC break switch must be switched off and on
again in order to acknowledge the error message. The
inverter then starts normally. When an arc occurs again,
the inverter behaves as previously described.
Arc types
There are two kinds of arcs:
— Serial arcs
— Parallel arcs
Serial arcs occur on damaged DC lines or at loose
contact points. These arcs occur more often in PV
systems than parallel arcs.
Parallel arcs can occur between the plus and minus
pole of the system or at individual sub-generators. Arcs
are dangerous. For one thing they destroy the
components upon which they occur and high
temperatures can also trigger a fire in the PV system.
The arc detection monitors the PV system for arcs. It
determines the string in which an arc is occurring. The
arc detection differentiates between serial or parallel
arcs. In the event of a serial arc, the inverter shuts off
the relevant string. This extinguishes the arc. A parallel
arc is issued as an error message.
Because it is not technically possible for an inverter to
delete a parallel arc, this is only shown as a message in
the display. The signal tone also sounds and the red
LED lights up. The message disappears in the display
once the error message is acknowledged.
Note: The entire installation of the PV system should be
checked for damage after each event message
referring to an arc. Inform your installer where
appropriate.
Note: In rare individual cases, false alarms can occur
that can be extinguished outside of the PV system.
Causes for such false alarms can include, for example,
transformer stations or large energy consumers.
IMPORTANT: Under certain circumstances (e. g. with
feed cables >60m), arcs cannot be registered. This is
why regular maintenance of the PV system is essential.
Regular inspection of the installation must be carried
out despite arc detection!
"Arc" fault
When an arc occurs, an event message referring to this
appears in the display. The red LED is permanently lit,
the yellow LED blinks in a 5-second rhythm and a
signal tone is heard. The inverter switches off the
relevant string.
After 30 seconds, the inverter attempts to switch on
the relevant string again. When the inverter recognises
an arc four times within a period of 30 minutes, it shuts
off the defective string entirely.
The arc detection can be deactivated with the
communication board II menu (default "On"). The
occurring malfunctions are recorded in the inverter.
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
11
7 Unit and system description
3
1
6
7
5
4
2
Fig. 6: System illustration of a grid-connected photovoltaic system
1
2
3
4
PV string 1
PV string 2 and 3 (optional)
Inverter
Electronic DC switch
5
6
7
AC mains cable
3-phase AC line circuit breaker (for layout, see table 6,
page 18)
Feed meter
Inputs
Internal consumption
The PIKO operates using the so-called string principle:
In this system, a limited number of solar modules
(depending on the desired power output while
considering the maximum permissible input voltage)
are connected in series as a string, which is then
connected to the inverter. The number of strings
depends upon the configuration of the solar system.
The strings are connected to the inverter with plug-in
connectors.
The PIKO inverters are designed in such a way that the
generated current can be used internally either entirely
or in part.
Depending on the device type, one, two or three
separately controllable inputs are available. Inputs one
and two can sometimes be connected in parallel in
order to allow a higher input current (see table 7,
page 19). For PIKO 5.5, parallel connection is not
possible.
Photovoltaic module
Inverter
Production
meter
Consumption
meter
Grid
Control signal
Jumper switch
External load relay
You can obtain the highest yields through the maximum
permissible input voltage. This is achieved by using the
smallest possible number of inputs with identical
power. An example: For the installation of 48 solar
modules, it is better to use two inputs with 24 modules
each rather than three inputs with 16 modules each.
Be sure to always observe the specifications on the
type plate!
Feed
meter
Consumer devices
Fig. 7: Possible configuration for internal consumption
The switch output is a potential-free NO switch.
Note: An external load relay must be installed between
inverters and devices. No devices may be connected
directly to the inverter!
You can find the description for the electrical
connection in section "Connect switch output (S0/Al
OUT)" on page 29.
You can find the description of the S0 output
configuration for the control of internal consumption in
section "Setting the switch output function" on
page 34.
12
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
7 Unit and system description
Active power and reactive power control
The terms
There are three types of electrical power in the mains
grid:
— Active power (W)
— Reactive power (Var)
VDE application rule (VDE-AR-N 4105) and
Renewable Energies Act (EEG) 2012
New application rules for PV systems have applied in
Germany since 1 January 2012. The VDE application
rules (VDE-AR-N 4105) and the Renewable Energies
Act (EEG) are compulsory. The PIKO inverters satisfy
the currently required standards and guidelines.
Note: Should the PV system not fulfil the Renewable
Energies Act (EEG) 2012, the grid operator can reduce
the feed-in tariff or dispense with it entirely.
— Apparent power (VA)
Active power
Active power is that electrical power that is converted
by an ohmic device. Ohmic devices are devices with no
coils and capacitors (e. g. heat radiators, electric
stoves, light bulbs). The active power is registered by
the usual electricity meters. This means that only the
active power is calculated or paid for.
The following points are relevant when implementing
the new application rules:
The active power current is "in phase". This means that
current and voltage are synchronous. Both reach the
zero point and the peak value at the same time.
— Fixed limitation of the feed-in power to 70% of the
PV output
— Frequency-dependent active power control
— Active power control with a ripple control signal
receiver
— Provision of reactive power
— Regulating of unbalanced loads
Reactive power
Reactive power is that electrical power that is
converted by inductive and capacitive devices.
Inductive devices are coils. Capacitive devices are
capacitors.
These devices require electrical energy in order to build
up the magnetic or electrical field. This power is
referred to as reactive power. Devices with motors and
capacitors (e. g. washing machine) draw reactive
power from the grid.
The reactive power is not registered by the usual
electricity meters. However, like the active power, it
does draw from the mains grid. The reactive power
current is "out-of-phase". That means that current and
voltage reach the zero point and the peak value at
different times.
Apparent power
Apparent power is the total output, consisting of real
and reactive power. The calculation of electrical power
takes place through the geometrical addition with the
angular functions (cosϕ, sin ϕ and tan ϕ).
Frequency-dependent active power control
To date inverters are to be immediately disconnected
from the grid when they exceed the upper frequency
limit of 50.2 Hz. Grid stability can be negatively
impacted by the abrupt switching off of large
generation plants. Hence the need for an active power
reduction solution in the event of overfrequency.
This means that inverters need not be disconnected
from the grid when exceeding 50.2 Hz, but instead that
the active power must be reduced. This active power is
then reduced by 40% per Hz. When the frequency
reaches 51.5 Hz, the inverter must be immediately
disconnect from the grid.
Active power control with a ripple control signal
receiver
The active power of the PIKO inverter can be controlled
directly by the energy supply company via a ripple
control signal receiver (1). With this technology, the
generated power can be regulated at four levels
(see Fig. 8).
Displacement factor cosϕ
The size of the real, reactive and apparent power can
be determined with the displacement factor cosϕ. The
smaller the cosϕ factor is, the less the active power
and therefore the greater the reactive power.
Note: The displacement factor cos ϕ can be set with
the parametrisation software PARAKO in order to
define the magnitude of the reactive power.
You can acquire the software from support following
registration.
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
13
8 Installation
8
1
EVU
100 %
60 %
30 %
0%
Fig. 8: Active power control with a ripple control signal
receiver
Note: For all PIKO inverters, the ripple control signal
receiver can be directly connected without an
additional device (see section "Connecting a ripple
control receiver for active power control" on page 30).
The regulating function is activated in the web server of
the inverter (option "Function of analogue inputs: active
power control").
Fixed limitation of the feed-in power to 70% of the
PV output
Should the active power control not be realisable with a
ripple control signal receiver, the feed-in power is then
generally to be reduced to 70% of the PV generator
output according to the Renewable Energies Act 2012
(EEG 2012).
Installation
DANGER
Risk of death due to electrical shock!
When performing any work on the inverter and feed
cables:
• De-energise the AC and DC sides of the device,
see chapter 9.4 ‹Disconnecting the inverter
/decommissioning›.
• Secure the voltage supply from being
unintentionally switched back on.
• Wait at least five minutes until the capacitors of the
inverter have discharged.
• Check the device and cables to make certain that
they are voltage-free.
• Prior to installation, check whether the local mains
grid and the power output of the photovoltaic
modules are compatible with the technical data of
the inverter. Observe the type plate.
• Observe the specified sequence of installation
tasks: Install the inverter first, then connect it to the
electricity supply.
• Observe all national regulations in the country of
use as well as the connection and safety regulations
of the local energy supplier.
• Pay attention to careful and correct installation: No
dirt, no foreign bodies and no moisture may enter
the inverter.
The reduction is carried out with the parametrisation
software PARAKO.
Provision of reactive power
As of a system apparent power of 3.68 kVA, the energy
provider must release a part of the generated power as
reactive power.
With the parametrisation software PARAKO, the
reactive power can be specified as follows:
cos ϕ
A value for cos ϕ is prescribed
cos ϕ (P)
An active power curve is prescribed
Table 5: Reactive power control with PARAKO
In addition, the displacement factor cos ϕ can be
remote-controlled through a ripple control signal
receiver. Configuration to this purpose is also to be
carried out with PARAKO.
14
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
8 Installation
8.1 Installation
NH3
DANGER
Risk of death due to improperly performed
installation!
Improper installation can lead to life-threatening
situations. The inverter and the components connected
to it can also be damaged, increasing the risk of fire.
Selecting the installation site
Note: Observe the following instructions when
selecting the installation location. Guarantee claims
may be restricted or become entirely null and void in
the event of failure to observe.
Protect inverter against dust,
contamination and ammonia gases.
Rooms and areas containing livestock are
not permitted as installation locations.
Install inverters so that they are not
accessible to children.
Maintain a minimum distance to other
inverters and other objects (see Fig. 9,
page 16).
Minimum distance, horizontal: 100 mm
Minimum distance, vertical: 200 mm
An unimpeded air supply must be
assured!
Protect inverter from rain and splash
water.
Protect inverter against exposure to direct
sunlight.
Inverter must be easily accessible and the
display clearly visible.
Inverter can cause noise when in
operation.
Install inverter in such a way that people
are not disturbed by operation noises.
Mount inverter on a non-flammable
installation surface.
Mount inverter on a stable installation
surface that can securely bear the weight
of the inverter.
Plasterboard walls and wood planking are
not permitted.
A sufficient safety distance from
flammable materials and explosion
hazard areas in the vicinity are to be
ensured.
Mount inverters on vertical installation
surfaces.
90°
°C/°F
%
The ambient temperature must lie
between -20 °C and +60 °C.
The air humidity must lie between 0% and
95% (non-condensing).
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
15
8 Installation
Installing the wall mount and hanging the
inverter
• Mark the positions of the drill holes at the installation
site by using the wall mount as a drilling template.
1
100
1.
2
42
200
8.2 Electrical connection
DANGER
Risk of death due to electrical shock!
If exposed, voltage-carrying cables make contact, an
electrical arc can occur, posing a life-threatening
hazard.
• Only remove as much of the cable insulation as is
necessary. The insulation must reach up to the
terminal.
15
max.10°
42
DANGER
100
104
200
2.
Risk of death due to electrical shock!
Metal slivers can fall into the inverter when removing the
insulation. Contact with voltage-carrying components
during operation can cause an electrical arc to occur,
posing a life-threatening hazard.
• Never remove the cable insulation above the
inverter!
3.
DANGER
1
2
100
45
1.
200
20
max.10°
45
100
74
200
2.
3.
Fig. 9: Install the inverter (top: PIKO 4.2/5.5, bottom:
PIKO 7.0/8.3/10.1)
1
2
Required space for cooling
Outer dimensions of the inverter
• Drill holes and insert wall anchors if necessary.
• Screw the wall mount to the intended surface. Use
the supplied screws.
• Hang the inverter on the wall mount.
• Fasten the inverter on the underside using the
supplied screw.
16
Injuries can result from destruction of the device!
When the maximum values of the permitted input
voltage at the DC inputs of the inverter are exceeded,
this can result in serious damage, which can lead to the
destruction of the device and to considerable injuries to
persons present. Even brief exceeding of the voltage
can already cause damage to the inverter.
• Prior to connection of the DC plugs to the inverter,
check for the correct planning and wiring of the
modules and subsequently measure the DC idling
voltage. Please ensure that the maximum permitted
DC idling voltage is not exceeded. Log the
measurement values. In the event of a complaint,
please provide these measurement values.
Failure to do so will make any warranty,
guarantee or liability of the manufacturer null
and void when you can not prove that the
damage was not due to non-observance.
Opening the housing
• Release the four screws of the cover and carefully
remove the cover.
8.3 Connecting the AC side
• Unscrew the cable screw connection for the mains
cable (1 in figure 10).
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
8 Installation
1
L1
L2
L3
N
PE
2
3
4
1
Fig. 10: Connection on the housing (the number of
usable inputs depends on the model)
1
Cable screw connection for mains cable
• Press the blind plug and the sealing ring out of the
screw connection from the inside outwards using
a screwdriver or similar implement. Detach the
sealing ring from the blind plug.
1
Fig. 12: Laying the mains cable
1
2
3
4
AC terminal
Mains cable
Sealing ring
Union nut
L1 L2 L3 N PE
2
Fig. 13: Sealing cap for AC terminal
Fig. 11: Pressing the blind plug out of the sealing ring
1
2
Note: To connect the AC and DC cables, the inverter is
equipped with spring-loaded terminal strips (figure 14).
1.
Blind plug
Sealing ring
We recommend a mains cable with the cross-section
3×2.5 mm2. The outer diameter of the cable can be
9...17 mm, the cross-section of the individual
conductors can be a max. of 4 mm² for flexible cables
and a max. of 6 mm² for rigid cables. For flexible
cables, we recommend using core end sleeves.
2.
• Remove the sheath and the insulation of the mains
cable as much as needed.
• First thread the unscrewed union nut (4 in illustration
12) and then the sealing ring (3 in illustration 12)
over the mains cable.
• Guide the mains cable through the cable duct into
the interior of the inverter.
• Thread the sealing cap (illustration 13) over the
mains cable. The sealing cap is mandatory in Italy.
Fig. 14: Spring-loaded terminal strip: Fastening the
cable (left), detaching the cable (right)
• Connect the wires of the mains cable to the AC
terminal in accordance with the labelling (figure 15).
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
17
8 Installation
8.4 Earth connection (only for France)
L1 L2 L3 N PE
1
2
L1 L2 L3 N PE
For connection in France, the inverter must be earthed
as shown in the following illustration.
3
Fig. 15: Mains cable connected (left without sealing
cap, right with sealing cap (shown PIKO 7.0/8.3/10.1)
1
2
3
Sealing cap
Sealing wire
Mains cable
• Place the sealing cap on the terminal block and
attach the seal. The sealing cap is mandatory in
Italy.
• Screw the union nut with inner sealing ring and plug
tightly onto the cable screw connection.
3 Nm
Note: The threaded cable connection seals the
housing against moisture and functions as strain relief.
• Check whether all lines are securely connected and
that they cannot loosen on their own.
• Switch off the current distributor and secure the
voltage supply from being unintentionally switched
back on. Ensure that the current distributor is deenergised.
• Lay the mains cable from the inverter to the current
distributor.
• WARNING! Risk of fire due to overcurrent and
heating of the mains cable. Install a line circuit
breaker into the mains cable between the inverter
and the feed meter (see table 6) to secure it against
overcurrent.
Type
Three-pole
Tripping characteristic
Rated current
10.1
4.2
5.5
7.0
8.3
PIKO
Fig. 16: Earth connection (only for France)
8.5 Connecting the DC side
The number of strings to be connected depends on the
configuration of the photovoltaic system.
The cross-section of the DC cables should be as large
as possible, a maximum of 4 mm² for flexible cables
and 6 mm² for rigid cables. We recommend using tinplated cables. If non-tin-plated cables are used, the
copper strands may oxidise, as a result of which the
transition resistance of the crimp connections will be
too high.
If the rated current of a string is higher than the
permitted input value of the inverter, you can, on certain
unit types, connect the DC inputs 1 and 2 in parallel
(see table 7). Two bridges have been added to the units
for this purpose (figure 17).
B
16 A
25 A
Table 6: Recommended AC line circuit breaker
• Do not switch on the voltage yet.
Fig. 17: DC bridges
18
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
8 Installation
4.2
5.5
7.0
8.3
10.1
PIKO
Number of DC
inputs
2
3
2
2
3
Nominal DC
current per
input [A]
8
8
11.5
11.5
11.5
Max. DC input
current per
input [A]
9
9
12.5
12.5
12.5
Is parallel
connection of
inputs 1 & 2
possible?
Yes
No
Yes
Yes
Yes
DC nominal
current for parallel
connection 1+2 [A]
12
—
20
20
23
Max. DC input
current for parallel
connection
input 1 & 2 [A]
13
—
25
25
25
• Pull gently on the cable in order to check whether
the metal part has engaged.
• Check that installation has been carried out in
accordance with the recommendations of the plugin connectors' manufacturer.
DANGER
Injuries can result from destruction of the device!
When the maximum values of the permitted input
voltage at the DC inputs of the inverter are exceeded,
this can result in serious damage, which can lead to the
destruction of the device and to considerable injuries to
persons present. Even brief exceeding of the voltage
can already cause damage to the inverter.
• Prior to connection of the DC plugs to the inverter,
check for the correct planning and wiring of the
modules and subsequently measure the DC idling
voltage. Please ensure that the maximum permitted
DC idling voltage is not exceeded. Log the
measurement values. In the event of a complaint,
please provide these measurement values.
Table 7: Connecting inputs in parallel
Failure to do so will make any warranty,
guarantee or liability of the manufacturer null
and void when you can not prove that the
damage was not due to non-observance.
The delivery package of the inverter includes plug-in
connectors from Multi-Contact (type MC4).
During installation, always observe the latest
specifications from the manufacturer of the plug-in
connectors, e.g. regarding required special tools,
permissible tightening torques etc.
Inserting DC cables into the inverter
Further information is available, for example, online at
www.multi-contact.com.
+ - + - + -
Installing the plugs onto the DC cables
DANGER
Risk of death due to electrical shock!
The PV lines may be live when the PV field is irradiated.
• Ensure that the DC switch is set to O (OFF). The
plug-in connectors may be plugged in and
disconnected in this position only.
• Eliminate any existing earth faults or short circuits in
the strings.
• Remove 6–7.5 mm of insulation from the DC
cables. Be careful not to cut any individual wires.
• Crimp the DC cables according to the
recommendations of the plug-in connectors'
manufacturer.
1
2
3
Fig. 18: DC inputs (the number of inputs which can be
used depends on the model)
1
2
3
Plug-in connector couplings DC string 1
Plug-in connector couplings DC string 2
Plug-in connector couplings DC string 3
• Check that the inverter is de-energised.
• Set the DC switch to OFF.
• Lead the crimped contacts from behind into the
plug or socket insulation until they engage.
Make sure to use the provided multi-contact plug-in
connectors. Observe the polarity of the cables.
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
19
8 Installation
Note: Please note that parallel connection is not
possible with PIKO 5.5.
OFF
DC1
DC2
1
Fig. 19: DC switch OFF
2
3
• Remove the two plug seals from the plug-in
connectors. Keep the plug seals.
• Insert the PV string plugs until they engage in the
corresponding counterparts on the inverter
(figure 20).
Note: Fuses for the individual strings are only
necessary when more than two strings are connected
parallel to an input. In this case, use a fuse in
accordance with the specifications of the module
manufacturer.
Fig. 21: Inputs 1 and 2 are connected parallel
(PIKO 4.2)
1
2
3
DC bridges
PV string 1
PV string 2
DC1
1
+
-
+
-
+
DC2
1
-
2
2
3
3
4
Fig. 22: Inputs 1 and 2 are connected parallel
(PIKO 7.0/8.3/10.1)
Fig. 20: Connecting the PV string
• Pull on the plugs in order to ensure that they are
properly engaged.
Note: To disconnect the plug-in connectors, press the
engaging clips together manually or with the tool
available from the plug-in connectors' manufacturer
and pull the plug out.
• To connect additional strings, repeat the above
installation steps for each string.
Any additional plug-in connectors needed are
available from specialist shops.
1
2
3
DC bridges
PV string 1
PV string 2
• Leave the plug seals on the plug-in connectors not
in use to protect them from moisture and dirt.
8.6 Connect communication
components
Now install the available communication components,
such as cable, etc. The GSM modem is an exception,
since the PIN code of the SIM card must be entered
before the GSM modem can be installed in the inverter
with the SIM card (see section 9.2.1).
• PIKO 4.2: If you connect DC input 1 and 2 in
parallel, remove the cable ends of the second DC
input from the clamping block DC2 and insulate the
free cable ends using the caps supplied.
• PIKO 4.2/7.0/8.3/10.1: If required, now connect
inputs 1 and 2 in parallel. Insert the supplied
bridges into the clamps as shown (figure 21/22).
20
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
8 Installation
8.7 Closing the housing
ATTENTION
Ensure that all cables run directly over the protective
plate, do not protrude over the side of the protective
plate and are fastened with cable ties.
• Fasten all cables with a cable tie to the recesses in
the protective plate.
Make sure that all cables run directly over the
protective plate and do not project laterally over the
protective plate.
DANGER
Risk of death due to electrical shock!
Single-insulated cables from communication
components may come into contact with parts carrying
grid voltage if the insulation is damaged.
• Only connect double-insulated cables in the
inverter.
ATTENTION
The communication board may be damaged by
electrostatic discharge.
• Touch a grounded point, for example, the holder for
the housing screw connection on the bottom right,
before touching the PCB.
8.6.1
Overview of the communications
interfaces
1
Fig. 24: Fastening cable to protective plate
• Screw all union nuts together with sealing ring
tightly onto the cable screw connection.
Recommended tightening torques: 1.5 Nm (M12)
and 8 Nm (M25).
• Check whether all lines are securely connected and
that they cannot loosen on their own.
• Remove any foreign objects from the inverter (tools,
wire cuttings, etc.).
• Fit the cover and bolt it tight (5 Nm).
2
oard
B
Kom
6
5
4 3
2
Fig. 23: Communication interfaces
1
2
3
4
5
6
Modem (accessory)
RJ11 socket
Terminal for RS485 interface
S0 voltage input
RJ45 sockets
Switch output (S0/Al OUT)
8.8 Set initial commissioning and
country of use
For the initial commissioning, sufficient solar irradiation
must exist so that a DC input voltage of at least 180 V
is available for the inverter.
The country of use must be set so that the network
monitoring functions in accordance with the local
mains grid.
• Turn the DC switch to ON or switch on the DC
strings one after another via the external DC isolator.
Connecting Ethernet cable
ON
You can connect the inverter to a computer or a
computer network (Ethernet 10/100MBit/s) via
the RJ45 socket. Use a CAT6 cable with a max. length
of 100m.
• Insert the plug of the Ethernet/crossover cable into
one of the corresponding sockets (5 in figure 23).
Fig. 25: DC switch ON
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
21
8 Installation
• Switch on the grid voltage via the line circuit breaker.
8.8.1
The inverter starts up. After the start up, the three LEDs
light up briefly. The inverter can now be operated. The
screensaver appears and displays the device type. The
screensaver is deactivated when a key is pressed
twice.
• Connect the inverter with a computer as described
in the following.
The menu for the country setting appears on the
display.
Connecting to the web server of
the inverter
• Set the Ethernet interface (TCP/IP protocol) of the
computer so that the IP address automatically
obtains the DNS server address. To alter this
setting, administrator access rights may be
required.
• Start your Internet browser and enter the letter S
and the serial number of the inverter in the address
bar, for example http://S12345FD323456
Country setting
➜
The log-in window opens.
• Enter user name and password. The factory
defaults are set as follows:
Austria
User name: pvserver
Password: pvwr
Fig. 26: Country setting menu
• Confirm the entries by clicking on "OK".
➜
The main page of the inverter is displayed.
1
Country setting
4
2
Austria
3
Fig. 27: Display on the inverter
• Press the arrow keys (1 or 2) to select the desired
country.
• Press the Enter key (3) to go to the confirmation
window.
• Press the arrow keys (1 or 2) to switch between
"NO" and "YES" choices.
Fig. 28: Main page of the web server
• Press the Enter key (3) to confirm your selection.
Overview of the communications interfaces
Note: The country setting is now permanently fixed.
The country setting menu can no longer be called up.
In terms of communication options, four different
situations are taken into account.
1. Inverter configuration.
2. Direct retrieval of the current yield/power values
and/or saved log data.
3. Transfer of the yield/output data to an Internet solar
portal.
4. Remote retrieval of the current yield/power values
and/or saved log data.
22
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
8 Installation
Situation 1: Configuring the inverter
All settings relating to communication, for example,
activation of data transfer to a solar portal, can be
selected directly via the display or the integrated web
server. In order to access the web server for
configuration, you require a computer that is connected
to the inverter either directly or via the network.
The inverter is equipped with two Ethernet interfaces
(RJ45 sockets) for this purpose. The computer must
also be equipped with this type of interface. The
operating system is irrelevant, as the web server is
called up via an Internet browser (e. g. Mozilla Firefox,
Microsoft Internet Explorer).
You can then connect the inverter and computer either
a) directly via an Ethernet cable (see illustration 31) or
b) via a local network (switch/hub/router and Ethernet
cable, see figure 29).
1
2
3
4
Fig. 30: Several inverters in the network
1
2
3
4
5
Version a) is the best option when no switch/hub/router
is available.
Version b) is the best option when a local network is
already available. Several inverters can also be
connected in the network (figure 30).
Inverter
Additional inverters
Ethernet/crossover cable
Switch/hub
Computer (for configuration or data retrieval)
1
2
1
5
3
Fig. 31: Connecting inverter and computer with
Ethernet cable
2
3
4
1
2
3
Inverter
Ethernet/crossover cable
Computer (for configuration or data retrieval)
Fig. 29: Connecting inverter and computer with
Ethernet cables and switch
1
2
3
4
Inverter
Ethernet/crossover cable
Switch/hub
Computer (for configuration or data retrieval)
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
23
8 Installation
Situation 2: Direct retrieval of the yield data
Situation 3: Data transfer to a solar portal
Retrieving the saved log data of the inverter is also only
possible with a computer. The units are cabled as
described under situation 1.
The inverter can send yield data to an Internet solar
portal at regular intervals.
Alternatively, you can connect the inverters to each
other via the RS485 interface and then need only
connect one of the inverters via Ethernet (figure 32).
a) the inverter must be connected to a DSL router or
to a network with Internet access
or
With this type of connection, the web server of the
inverter connected via the Ethernet also displays the
current output data of the other inverters. However, the
web server and the stored log data are only available
for the inverter connected via Ethernet.
b) the inverter must have an integrated wireless
modem (GSM) available as an accessory.
1
Version a) requires a DSL connection. If your inverter is
located close to the building and you already have a
DSL connection, you can use the available connection
for transfer.
In the case of data transfer via DSL, a max. of 300
inverters can be networked.
Note: If the inverters are connected to the Internet by
DSL router in the local network, both direct retrieval of
the log data as well as transfer of the log data of all
connected inverters is possible through a solar portal.
2
3
4
Version b)
5
6
Fig. 32: Connect inverters via the RS485 and retrieve
performance data via Ethernet
1
2
3
4
5
6
To do so,
Inverter
Additional inverters, max. 200 depending on cable length
RS485 connection
Ethernet/crossover cable
Switch/hub
Computer
To transfer the data to a solar portal with a modem, first
connect the inverter via the Ethernet/crossover cable.
You will only need one modem: the inverter with the
modem then assumes the function of a router for the
other inverters.
For version b) with a wireless modem, you will
require a SIM card from a mobile phone provider. There
must also be adequate wireless reception at the point
of installation.
Make sure that the APN (access point name) is set
correctly. To do this, use the "Settings" page in the
"GSM-Link" configuration tool (see section Installing
GSM modem).
You will find a detailed description on our website.
ATTENTION
Inadequate reception quality, e.g. in areas with weak
network coverage, can lead to connection problems
and to the GSM modem dialling into the grid too
often. Depending on the price model of the GSM
contract, this can result in increased costs.
24
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
8 Installation
The reception quality is also affected by the weather.
We recommend testing the reception with a normal
mobile telephone for a few days prior to installation to
ensure that adequate reception is possible despite
differing weather conditions.
Situation 4: Remote retrieval of yield data
You can also connect to the inverter remotely instead of
through a local network. This may possibly involve
additional connection costs.
Similar to situation 3, the inverter must either
Note: The maximum cable length of the GSM antenna
is 8 m!
a) be connected to a DSL router or
The number of inverters that can be networked is in
principle only limited by the available IP addresses. In
practice, a maximum of 30 inverters can be networked
when transferring data via a GSM modem.
Version a) Inverter with DSL connection to the
Internet
b) have a modem (GSM) installed.
To ensure the inverter can actually be accessed via the
Internet, several requirements must be met.
— The inverter must have a fixed IP address in the
local network.
1
— Port forwarding must be configured to the inverter
IP address in the router.
2
3
4
WWW
5
Fig. 33: Connecting several inverters through the
Ethernet and transferring data via modem
1
2
3
4
5
Inverter with an integrated modem (GSM)
Additional inverters (without a modem), max. 29
Ethernet/crossover cable
Computer (for configuration and, if applicable, direct
retrieval)
Mobile communications antenna
Note: For installations with several (max. 30) inverters,
you will only need one modem.
— The router must be assigned a fixed IP address by
the Internet provider or you must register the router
with a DynDNS service to connect the dynamic
router IP address with a fixed name.
The inverter can then be accessed over the Internet
under the domain name provided by the DynDNS
service, and you can connect to the inverter with
any Internet browser (see figure 34).
Setting up a port forwarding and a DynDNS service
can't be illustrated in detail here due to the vast number
of different devices and services available.
Note: DynDNS services can also be found under the
designation "Dynamic DNS" and "DNS-Host-Service".
In order that the router can be reached under the
selected domain name, it informs the DynDNS service
of each IP address change. Many of the available
routers offer such a function, but a router generally only
supports certain DynDNS services.
With some router manufacturers the function for port
forwarding is called "Virtual Server" or similar.
For further information see the operating instructions of
the router.
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
25
8 Installation
1
5
3
WWW
2
4
Fig. 34: Retrieving log data: Inverter connected to the
Internet via DSL
1
2
3
4
5
Inverter
DSL router
Internet
Computer
Internet-compatible mobile phone with browser function
Version b) with an integrated modem
Dialling in with a computer and analogue telephone
connection does not function reliably for an inverter
with GSM modem. We therefore recommend dialling in
via a computer with a GSM modem or a mobile
telephone with a modem function (see figure 35).
1
In order to use the GSM modem, you will need a SIM
card with a contract with a mobile phone provider. The
GSM-Link software leaves you free to select your
mobile phone provider. Using a modem involves
additional costs. Details can be obtained from
telecommunications providers.
Not every mobile phone tariff is suitable
for use with an inverter!
Before purchasing the SIM data card,
discuss the following points with your
mobile phone provider and obtain all the
access data you require (APN, user name
and password).
— You should select a provider whose grid supplies
the strongest GSM signal at your chosen location.
— The tariff must allow for packet data communication
via GPRS.
— Prepaid cards which are charged by mobile calls
are not suitable.
— Tariffs which specify particular times for data
downloads cannot be used.
— The tariff must permit a data volume of at least
5 MB per month and inverter.
2
— The SIM card must be activated before installation.
3
4
Fig. 35: Retrieving log data: Inverter connected to a
mobile communications network
1
2
3
4
Installing GSM modem
Inverter with integrated GSM modem
Mobile communications antenna
Mobile telephone (GSM) with modem function
Computer
• Switch the inverter off for at least 5 minutes, see
chapter 9.4 ‹Disconnecting the inverter
/decommissioning›.
There are life-threatening voltages in the inverter
in the operating state. Only a qualified electrician
may open and perform work on the device.
• Open the cover.
• Connect an Ethernet/crossover cable to the
communication board (RJ45 interface (network
connection)) and connect this to the PC.
• Fasten the cable in such a way that it cannot come
into contact with the AC or DC cables.
• Switch the inverter back on again.
• In the Internet browser, enter the serial number,
inverter name or IP address in the address line to go
to the inverter's web server (e.g. s081230001 or
e. g. PIKO 4.2 or e. g. 192.168.1.1).
• Enter the PIN number on the "Settings" page in the
"GSM PIN" field.
26
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
8 Installation
• Enter the serial number or IP address of the inverter
in the "Host/IP address" field (note: enter the letter S
and the inverter's serial number, for example
http://S12345FD323456.)
• In the GSM area, enter the data (APN, user name
and password) of the SIM card in the corresponding
fields and confirm by selecting "Write new settings".
• Switch the inverter off for at least 5 minutes, see
chapter 9.4 ‹Disconnecting the inverter
/decommissioning›.
• Slide the SIM card into the card holder on the
underside of the modem.
• Carefully attach GSM modem to Pcb. The
uppermost plug pin must be inserted into the
uppermost hole in the multipoint connector.
Fig. 38: Installing the modem
Fig. 36: Settings page
• Launch the "GSM-Link" software.
• Insert the plug of the radio antenna into the GSM
modem.
• Install the radio antenna where it will have the best
possible reception.
Note: The reception quality will be displayed on the
web server info page after starting up (see section
‹Checking sensors and modem› in chapter 9.2).
• Switch the inverter on again and wait at least
2 minutes.
• In the Internet browser, enter the serial number,
inverter name or IP address in the address line to go
to the inverter's web server.
• Check whether the modem has adequate reception
quality (at least two bars) displayed (GSM modem).
Modem status: GSM signal strength 
Fig. 39: Modem status
Fig. 37: GSM -Link
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
27
8 Installation
• If the "Modem status: GSM signal strength" field is
displaying at least two bars, the connection is OK.
Info page
1st analogue input 0.00 V
Activating data transfer to a solar portal
2nd analogue input 0.00 V
• The factory setting does not include a solar portal.
To use a solar portal, you will need a portal code.
3rd analogue input 0.00 V
4th analogue input 0.00 V
Modem status No modem available
The portal code for the PIKO Solar Portal
(www.piko-solar-portal.de) is P3421.
The portal code for safer'Sun
(www.meteocontrol.com) is P202L.
The portal code can be entered in two ways:
1. Via the web server
2. Via the control panel
Entry of the portal code via the web server
• Open the web server's "Settings" page (see
illustration 36).
• Enter the code for the intended solar portal in the
"Portal code" field.
Last portal connection: –
Number of energy impulses (S0-In): 0 / 15 minutes
Back to main page
Fig. 40: Info page
If a value in minutes is stated in the "last connection to
portal" field, there is a connection to the PIKO Solar
Portal.
You can then register at the PIKO Solar Portal and use
the inverter to create a system or add the inverter to
this system.
Entry of the portal code via the control panel
• Call up the "Settings" menu in the main menu.
• Click on "accept" to save the settings.
➜
➜
The name of the solar portal will appear on the
page. The box ( ) next to the portal name was
activated automatically.
xx W
Data transfer is now activated.
Note: In order to end the data transfer, proceed as
follows (see also chapter 11.4 (page 49).
• Open the setting page of the web server.
• Click the box next to the name of the portal to
deactivate the data export to the solar portal ( ).
xx Wh
Feed-in (MPP)
• Click on "Accept" to apply and save the settings.
Fig. 41: Main menu, menu settings selected
• Check that the connection is OK.
• Go to the "Communication" menu and select the
"Portal configuration" menu
• The inverter connects automatically to the portal.
Enter the words "go online" in the "Portal-Code"
field to initialise a manual connection. (see "Entry of
the portal code via the control panel" on page 28).
• Use the arrow keys to select the "Code:" input box
and confirm the selection.
• Confirm by clicking on "accept".
• Open the "Info page".
Portal configuration
Data export
Code:
12345
Back
Accept
Fig. 42: Entry of the portal code
28
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
8 Installation
• Enter the portal code (see section "Call up main
menu and navigate" on page 41).
1
• Confirm the entry with the "Accept" function.
The data export is activated (recognisable by the cross
in front of Data export). The name of the solar portal is
shown. The data export to the solar portal is executed.
To end the data transfer, remove the x in front of the
portal.
2
oard
B
Kom
Note: Under normal circumstances, the data becomes
visible at the PIKO Solar Portal 20 minutes following the
data export. The transfer time can increase when the
connection is impaired (e. g. poor wireless connection).
8.9 Installing accessories
Fig. 43: Communication board with protective film
If available, now install accessories such as sensors or
ripple control receiver.
1
DANGER
Risk of death due to electrical shock!
Single-insulated cables from communication
components may come into contact with parts carrying
grid voltage if the insulation is damaged.
• Only connect double-insulated cables in the
inverter.
Protective film
Note: The communication board is covered with a
protective film. Before cables can be connected to the
S0/AL-Out, the film must be removed and then
mounted again.
Overview of the accessory interfaces
• Fasten the cable in such a way that it cannot come
into contact with the AC or DC cables.
ATTENTION
2
oard
B
Kom
The communication board may be damaged by
electrostatic discharge.
• Touch a grounded point, for example, the holder for
the housing screw connection on the bottom right,
before touching the PCB.
1
2
3
Fig. 44: Connections
1
2
3
Switch output (S0/Al OUT)
Terminal for analogue interfaces
RS485 interface
Connect switch output (S0/Al OUT)
The switch output S0/AI-OUT can be occupied with
the following functions via the settings page in the web
server:
— S0 interface
— Alarm output
— Switching of devices (internal consumption)
S0 interface: The switch output functions as a pulse
output as described in DIN EN 62053-31 with a
constant rate of 2,000 pulses per kilowatt hour. Using a
suitable receiver device, such as an energy meter or a
display, you can record and display the energy yield of
your photovoltaic system.
Alarm output: The switch output functions as a
potential-free NC contact. It opens when a malfunction
occurs (see ‹Faults› on page 44).
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
29
8 Installation
Internal consumption: The switch output functions as
a potential-free NO contact. It closes when the set
conditions are fulfilled (see section ‹Setting conditions
for switching on consumers (internal consumption)› on
page 34).
For more information, refer also to the text and image in
section ‹Internal consumption›, on page 12.
Max. load
100 mA
Max. voltage
250 V (AC or DC)
Connections
Neutral polarity
Note: When using the S0 input, the analogue inputs
Aln3 and Aln4 are inactive.
Note: If the inverter is intended for connecting a ripple
control receiver, you cannot connect sensors.
• Connect the lines to the terminal according to the
connection assignment (figure 46 and table 9).
2
1
3
4
A
B
GND
S0-In
AIn1
AIn2
AIn3
AIn4
Note: You must install a component such as an
external load relay between the inverter and the
consumer device. Do not connect any consumer
devices directly to the switch output.
AGND
+12V
Table 8: Switch output technical data
RS485
Fig. 46: Cable terminal
1
2
3
4
• Connect the lines to the appropriate terminals
(fig. 44, position 1).
Voltage output
Analogue inputs
S0 input (energy pulse meter)
RS485
Connecting the S0 input (energy pulse meter)
The S0 input allows you to record the pulses of an
energy meter or a second inverter.
When using the S0 input, the analogue inputs Aln3 and
Aln4 are inactive. The web server of the inverter shows
the pulses counted on the info page.
S0-In
AGND
• Connect the lines to the terminal (4 in figure 9)
according to the connection assignment (table 46).
2
1
Fig. 45: Example of the connection of an external
energy meter at the S0 In input
1
2
S0 In input
External energy meter
Connecting analogue sensors
The inverter features four analogue inputs to which you
can connect, for example, temperature and irradiation
sensors or wind sensors. The additional measured data
enable a more precise monitoring of the photovoltaic
system.
The sensors must have an output voltage of 0...10 V.
An additional voltage supply may be required,
depending on the sensor.
30
Terminal
Designation
Description
1
RS485 A
RS485 A
2
RS485 B
RS485 B
3
GND
Ground for RS485
4
S0 In
S0 input (energy pulse meter)
5
AIn1
6
AIn2
Inputs for analogue sensors
(0...10 V) or for ripple control
receivers
7
AIn3
8
AIn4
9
AGND
Ground for analogue inputs
and S0 input
10
+12V
12 V output for external
sensors (not potential-free;
max. 100 mA) or for ripple
control receivers
Table 9: Cable terminal connection assignment
Connecting a ripple control receiver for
active power control
Note: The information in this section applies only to
systems in Germany.
The inputs for analogue sensors can be used to
connect a ripple control receiver for active power
control (in accordance with the Renewable Energy Law,
as applicable in Germany). This function must be
activated via the web server of the inverter to which the
ripple control receiver is connected (master) (see
section ‹Setting the analogue input functions› in
chapter 9.2.1).
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
8 Installation
The inverter must then be linked via Ethernet or RS485
(figure 47) so that the inverter connected to the ripple
control receiver can forward the information received to
the other inverters.
2
3
• For the connection, activate the bus bias voltage in
the user menu of the first inverter and the bus
termination in the user menu of the first and last
inverters.
4
5
6
Note: If you have the necessary expertise, you can
connect the inverter to a serial interface (RS232 or
USB) of your computer via a signal level converter. For
this type of connection, however, only the current
performance data can be accessed. The integrated
web server and the stored log data are not available.
Fig. 47: Connecting the ripple control receiver for
inverters with Ethernet or RS485 connection
4
5
6
Cable lengths of up to 500 m are possible.
Note: If other RS485 units are connected in a RS485
network in addition to the inverters (e. g. a display), the
number of inverters which can be connected and the
maximum cable lengths may be limited.
1
1
2
3
To do this, you must set the bus bias voltage and bus
termination menu items in the user menu to ON
(fig. 66).
Master inverter
Additional inverters
Ethernet cable, alternatively RS485 connection
(3-conductor)
5-conductor connection at analogue-in
Ripple control receiver
Grid
• Connect the lines to the terminal (4 in figure 9)
according to the connection assignment (table 46).
8.10 Commissioning
For the initial commissioning, sufficient solar irradiation
must exist so that a DC input voltage of at least 180 V
is available at the inverter.
• Turn the DC switch to ON or switch on the DC
strings one after another via the external DC isolator.
A
B
GND
AIn1
S0-In
AIn2
AIn3
AIn4
AGND
+12V
• Connect the ripple control receiver lines in
accordance with the connection assignment
(figure 48 and table 9).
RS485
ON
0%
1
30%
60%
100%
Fig. 49: DC switch ON
• Switch on the grid voltage via the line circuit breaker.
The inverter starts up. After the start up, the three LEDs
light up briefly. The inverter can now be operated. The
screensaver appears and displays the device type. The
screensaver is deactivated when a key is pressed
twice.
Fig. 48: Connecting the ripple control receiver to the
inverter
1
Ripple control receiver
Connecting RS485
Connections for the serial RS485 interface are found
on the terminal for analogue interfaces (figure 46).
Using RS485, up to 200 inverters - depending on the
inverters used - can be connected.
Additional components can be connected to RS485.
An additional level converter may be required in some
cases. Use a shielded line for the connection.
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
31
9 Commissioning and de-commissioning
9
Commissioning and de-commissioning
9.1 Switching on the inverter
• Turn the DC switch to ON or switch on the DC
strings one after another via the external DC isolator.
ON
Note: The time of day must be set on the inverter (see
"Settings menu" on page 43). This ensures that the
downloaded log data have the correct time entry.
When the inverter is connected to a PIKO Solar Portal,
the time of day of the PIKO Solar Portal will be
adopted.
9.2 Setting up communication and
accessories
Perform the remaining set-up using the web server of
the inverter.
Fig. 50: DC switch ON
• Switch on the grid voltage via the line circuit breaker.
The inverter starts up. After the start up, the three LEDs
light up briefly. The inverter can now be operated. The
screensaver appears and displays the device type. The
screensaver is deactivated when a key is pressed
twice.
Note: You can change all settings which you make at
any time and as often as you like with the exception of
the country of use.
The main menu appears on the display.
xx W
xx Wh
Feed-in (MPP)
Fig. 51: Main menu, menu settings selected
Now you can call up the menus, retrieve data and
adjust settings with the control buttons (see menu
structure as of page 42).
The yellow LED lights up and the device automatically
carries out the required tests according to
DIN VDE 0126. If the yellow LED does not light up, the
input voltage may be too low.
When the tests have been successfully completed, the
green LED lights up and the inverter begins feeding in
current to the grid.
If the green LED does not light up, the input voltage or
the power may be too low or a fault has occurred (see
the chapter "Fault correction").
32
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
9 Commissioning and de-commissioning
9.2.1
Configuring settings
• Click on the "Settings" link.
➜
The "Settings" page is displayed.
Setting
Explanation
Function of
Two setting possibilities:
analogue inputs – Sensors
– Active power control (connection of a ripple
control signal receiver)
Network
Configuration of the inverter network interface
(Ethernet)
Public line
Only required when using an analogue
modem (optional accessory) and an analogue
telephone system
GSM PIN
PIN for the GSM modem SIM card. For further
information on configuration and installation of
the GSM modem, see chapter 8.6.
New login-password
Change of password
Portal code
Entry field for the portal code for changing the
solar portal displayed under 'data export'
Data export
Activation of data transfer to the solar portal
displayed ( ) or deactivation ( )
Table 10: Web server settings (cont.)
Changing the language
You can select a different language for the web server
from the drop-down list.
• Select the intended language.
• Click on "Accept" to save the settings.
Changing the name
You can assign a name of your own choosing to the
inverter. When connecting the browser to the web
server you can then use the name instead of the serial
number. Access with the serial number remains
possible.
• Type in the name you have chosen. The characters
a–z, A–Z and 0–9 are allowed. Umlauts, spaces or
special characters are not possible.
• Click on "Accept" to save the settings.
Note: Make a note of the new name for the inverter.
The name is also shown in the display of the inverter in
the "Settings" submenu and can be changed there.
Fig. 52: Settings page
Setting
Explanation
Configuring the RS485 address
S-no.
Inverter serial number
Item number
Item number of the inverter
Language
Selection of the language for the web display
If you have linked two or more inverters via RS485, you
must set the RS485 addresses of the inverter so that
each address is unique.
Name
Allocation of a name to the inverter
RS485 inverter
bus address
Unit address for the RS485 interface
• Enter the desired address in the field "Inverter bus
(RS485) address".
• Click on "Accept" to save the settings.
Data acquisition Choose between a saving interval of 15 or
60 minutes
Switch output
function
Three settings possibilities:
– S0-Pulse
– Alarm output
– Internal consumption
Table 10: Web server settings
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
33
9 Commissioning and de-commissioning
Changing the data capture (saving interval)
When selecting the saving interval, you have the option
of a 15-minute or 60-minute period between the saving
procedures. The internal memory can store the data for
approximately 100 days if the 15-minute period is
selected and for about 400 days with the 60-minute
period.
The inverter data are saved in the device only for a
limited time. When the internal memory is full, the
oldest data will be overwritten.
Power limit
Stable exceeding This is the period (in minutes) during which
of the limit
the inverter must produce at least the power
set in the "power limit" before the device is
switched on.
You can enter any value from 1 minute to
720 minutes (= 12 hours).
Run time
To save the data on a long-term basis, you can either
transfer the data to a solar portal or download them to
a computer.
The run time is ended and not continued
again if the inverter has not produced any
current for three hours.
• Click on "Accept" to save the settings.
• Select from the following options:
– S0 pulses
– Alarm output
– Internal consumption, see section "Setting
conditions for switching on consumers (internal
consumption)" on page 34
• Click on "Accept" to save the settings.
Setting conditions for switching on
consumers (internal consumption)
The connected consumer is switched on for
this period (in minutes) when both of the
above conditions have been met.
You can enter any value from 1 minute to
1440 minutes (= 24 hours).
The run time ends when the inverter shuts off.
• Select the desired saving interval.
Setting the switch output function
This is the minimum power (in watts) that
must be produced before the consumer is
switched on. You can enter any value from
1 watt to 999,000 watts.
Activation
The number indicates how often internal
consumption is activated each day.
Table 11: Internal consumption function 1
– Function 2
Activation limit
This is the minimum power (in watts) that
must be produced before the consumer is
switched on.
You can enter any value from 1 watt to
999,000 watts.
Deactivation limit The consumer is switched off when the
power generated falls below this value.
Table 12: Internal consumption function 2
Fig. 53: Setting conditions for internal consumption
• Choose between functions 1 or 2 and enter values.
– Function 1
34
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
9 Commissioning and de-commissioning
– Delay in drop in output / fault
1
Short term interruptions or drops in output can occur
during operation. In order that these events do not
result in the disconnection of the device, a delay time
can be set. Following the set period, the inverter shuts
the consumer off in the event of an enduring fault or
drop in output.
2
3
4
• Click on "Accept" to save the settings.
Setting the analogue input functions
• Select whether the analogue inputs should be used
for connecting sensors or a ripple control receiver
for active power control.
5
6
7
www
• Click on "Accept" to save the settings.
Configuring the network
As the standard default setting, the option "Auto IP /
DHCP" is activated. This means that the inverter
acquires its IP address from a DHCP server or
automatically generates itself an IP address in the area
169.254.XXX.XXX. A DHCP server can be, for example,
a DSL router. A DHCP server (Dynamic Host
Configuration Protocol) is a service that administers
and distributes the IP addresses and the network
configuration in a network.
Fig. 54: Network settings with automatic network
configuration for an external DSL router ( Auto
IP/DHCP,
external router)
1
2
3
4
5
6
7
Inverter 1 – Auto-IP / DHCP
Inverter 2 – Auto-IP / DHCP
Inverter 3 – Auto-IP / DHCP
Ethernet cable
DSL router – with DHCP server
Switch/hub
Computer with network setting "Obtain IP address
automatically"
Note: The "External router" option must be activated in
the web server for an Internet connection with a DSL
router.
Network with fixed IP addresses
Manual network settings of the inverter:
Entering the IP address of the router and the address of
the DNS server in the web server
— You have a local network (Ethernet) with fixed IP
addresses and want to integrate the inverter into the
network (figure 55).
automatic network settings of the inverter: When a
DHCP server is present, the inverter determines the IP
address of the router and the DNS server automatically.
In the following two cases, the network settings must
be entered manually:
- problems establishing an Internet connection
- no DHCP server for generating the IP address
A fixed IP address assignment ("Manual network
configuration" setting) is only required in a few cases:
— Or you operate the inverter through a DSL
connection with router and want to connect to the
inverter remotely via the router (figure 56).
• The "Auto-IP/DHCP" option is suitable for most
applications (figure 54).
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
35
9 Commissioning and de-commissioning
1
Note: The factory default setting of the DNS server
address is 145.253.2.203, and it provides the
alternative name resolution in the Internet. Do not
change this setting, as the export of log data to a solar
portal may otherwise not function any more.
2
• Activate the "Manual network configuration" setting
if you wish to assign a fixed IP address. Enter the IP
address and subnet mask.
3
4
WWW
Note: The changed settings take effect immediately
upon clicking on "Accept". Your inputs may have the
consequence that the inverter is no longer accessible
through the current connection.
• Click on "Accept" to save the settings.
5
Fig. 55: Network settings with manual network
configuration for GSM communication, subnet mask
255.255.255.0 ( external router)
1
2
3
4
5
Inverter with integrated modem (GSM) – inverter 1 – IP
address, e.g. 192.168.1.2
Optional additional inverters (without modem) – inverter 2
– IP address, e.g. 192.168.1.3
Ethernet cable
Computer – IP address, e.g. 192.168.1.250
Telephone connection or mobile communications
antenna
• If the inverter is to use an external router to send
data to a solar portal, activate the option "external
router" and enter the IP-address of the router.
• Click on "Accept" to save the settings.
Entering the PIN code (for GSM modems
only)
You must enter the PIN code that you received from
your mobile phone provider in the configuration of the
inverter before you install the GSM modem with the
SIM card.
• Enter the PIN code of the GSM card.
• Click on "Accept" to save the settings.
1
2
Note: If you subsequently change your mobile phone
provider, first enter the new GSM PIN in the web server
of the inverter and then replace the SIM card in the
GSM modem.
3
Changing the password
You can change the pre-set log-in password on the
integrated web server.
4
5
6
7
www
36
• Type the password into the "Repeat" field again.
• Click on "Accept" to save the settings.
Fig. 56: Network settings with manual network
configuration for external DSL router, subnet mask:
255.255.255.0, external router
1
2
3
4
5
6
7
• Type in the intended password. The characters a–z,
A–Z and 0–9 are allowed. Umlauts, spaces or
special characters are not possible.
Inverter 1 – IP address, e.g. 192.168.1.2
Inverter 2 – IP address, e.g. 192.168.1.3
Inverter 3 – IP address, e.g. 192.168.1.4, etc.
Ethernet cable
DSL router – IP address, e.g. 192.168.1.1
Switch/hub
Computer – IP address, e.g. 192.168.1.250
Note: Your old password becomes invalid immediately
after the password change. You should therefore note
the password as a precaution.
Forgotten the password? Our customer service is on
hand to assist.
Note: The user name cannot be changed.
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
9 Commissioning and de-commissioning
9.2.2
Checking sensors and modem
• On the main page of the web server, click on the
"Info page" link.
➜
The "Info page" window opens.
• Check whether the modem has adequate reception
quality (at least two bars) displayed (GSM modem).
Modem status: GSM signal strength 
Fig. 58: Modem status
Info page
1st analogue input 0.00 V
2nd analogue input 0.00 V
3rd analogue input 0.00 V
4th analogue input 0.00 V
Modem status No modem available
Last portal connection: –
Number of energy impulses (S0-In): 0 / 15 minutes
Back to main page
• When the reception quality is too low, try another
location for the GSM antenna.
Please note that the reception quality also depends
upon weather conditions.
Note: Reception quality which is inadequate can lead
to connection problems and to the GSM modem
dialling into the grid too often. Depending on the price
model of the GSM contract, this can result in increased
costs.
Fig. 57: Info page
• Click on "Back to home page" to display the home
page again.
Entry
Explanation
9.2.3
x- analogue
input
Shows the voltage which is currently available
on the analogue input x
• Close the browser window to disconnect from the
web server of the inverter.
Modem status Shows the modem status:
– When the analogue modem is connected
correctly, "Analogue modem identified" is
displayed.
– When the GSM modem is connected
correctly, the GSM signal strength is
displayed.
– When the modem is connected incorrectly or
not available, "No modem available" is
displayed.
Last portal
connection
Displays how many minutes ago the inverter last
transferred data to the solar portal (when the
function is active)
No. of energy Displays the number of energy pulses per time
pulses
unit occurring at the S0 interface
Table 13: Info page
Disconnecting
9.3 Handover to the operator
After successful installation and commissioning, give
the inverter and this manual to the operator. Advise the
operator about the following points:
• The position and function of the DC switch or the
external DC isolator and the AC line circuit breaker.
• Safety when handling the device.
• Appropriate procedure when checking and
servicing the unit.
• Meaning of the LEDs and the display messages.
• Contact person in the event of a fault.
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
37
9 Commissioning and de-commissioning
9.4 Disconnecting the inverter
/decommissioning
The following dangers exist when working on the
inverter:
When carrying out maintenance and repair work, the
inverter must always be de-energised and secured
against being switched on again.
Danger due to electrical shock!
Always disconnect the device from the power
supply during installation and before
maintenance and repairs (see Table 3).
The inverter is only de-energised after the following
work steps have been carried out.
Danger due to electromagnetic fields!
Persons with pacemakers, metallic implants or
hearing aids should avoid proximity to
systems with inverters.
IMPORTANT INFORMATION
These work steps must be performed before carrying
out any work on the inverter!
1.
OFF
ON
2.
Risk of burns from hot parts!
Some of the inverter components can reach
temperatures of over 80 °C during operation.
Do not touch hot components.
Switch off DC switch
Risk of fire due to hot parts!
Be absolutely sure to observe the conditions
in the "Installation" chapter (page 15) when
choosing the installation location.
Switch off line circuit breaker
For internal consumption:
Switch off line circuit breaker for
the control of internal
consumption.
OFF
3.
Secure it against reactivation.
4.
Disconnect DC lines
5.
Wait five minutes
(discharge time of the capacitors)
5 min
Burns from arcs!
Cables must never be removed from the
device during operation as this can cause
dangerous arcs.
First de-energise the DC side, then remove
plug-in connectors!
5 min
Danger due to electrical discharge!
Wait five minutes after de-energising the
inverter!
Warning! Property damage!
Property damage to the device, lost earnings
or increased telephone fees can result.
The instructions refer precisely to the type of
and remedy for potential property damage.
Table 15: Warning symbols
Table 14: De-energise the inverter
9.5 Servicing/maintenance
DANGER
Risk of death due to improperly performed work!
Work performed improperly can cause life-threatening
situations. Only qualified electricians or appropriately
trained persons may perform work on the inverter.
Once correctly installed, the inverter operates nearly
maintenance-free.
• Check the cable connections and plugs at least
once a year.
If there are loose connections, damaged cables,
etc., switch off the inverter immediately.
Damage may only be repaired by qualified electricians.
38
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
9 Commissioning and de-commissioning
Fan cleaning
For cooling during operation, inverters are equipped
with one or two regulated fans. To ensure that the fans
function properly, you should regularly perform a test of
the fans. If the fans are dirty, the inverter may not be
adequately cooled and the degree of efficiency of the
unit decreases.
1
2
3
DANGER
Risk of death due to electrical shock!
There are life-threatening voltages in the inverter in the
operating state.
• Switch off the device completely (DC side and AC
side) before commencing any work.
• Wait at least five minutes after switching off until the
capacitors have discharged.
• Switch off the inverter as described in chapter 9.4.
4
You can now clean the fan:
• PIKO 4.2/5.5: Loosen the screws (4 in fig. 59) and
carefully remove the fan grille and the fan.
PIKO 7.0/8.3/10.1: Loosen the screws (3 in fig. 60)
and carefully remove the fan plate.
• Disconnect the fan cable plug connection.
• Clean the fan with a soft brush.
Fig. 59: Dismantle fan (PIKO 4.2/5.5)
1
2
3
4
Fan cable
Fan
Fan grille
Screws
• PIKO 4.2/5.5: Reinsert the fan cable, place the fan
back into the housing and screw the fan and the fan
grille on.
PIKO 7.0/8.3/10.1: Reconnect the fan cable and
screw the fan plate back onto the housing.
You can now switch the inverter back on:
• Turn the DC load break switch to ON or switch on
the DC strings one after another via the external DC
isolator.
ON
1
Fig. 61: DC load break switch ON
2
3
• Switch on the grid voltage via the line circuit breaker.
Fig. 60: Dismantle fan (PIKO 7.0/8.3/10.1)
1
2
3
Fan cable
Fan plate with fan and grille
Screws
If the fan does not run properly, it should be cleaned. To
do so, you must switch off the inverter:
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
39
10 Inverter operating characteristics
9.6 Disassembly and disposal
To disassemble the inverter, proceed as follows:
DANGER
Risk of death due to electrical shock!
There are life-threatening voltages in the inverter in the
operating state.
• Switch off the device completely (DC side and AC
side) before commencing any work.
• Wait at least five minutes after switching off until the
capacitors have discharged.
• Switch off the inverter as described in chapter 9.4.
• Open the cover of the inverter.
Loosen the terminals and cable screw connections
and remove all DC and AC-cables.
10 Inverter operating
characteristics
The inverter will work automatically after
commissioning, meaning that regular operation is not
necessary.
As soon as the photovoltaic modules generate
sufficient current, the inverter begins feeding into the
mains grid in Switzerland.
10.1 Display field
The inverter indicates the respective operating status
through three LEDs and an display. You can also
retrieve operating values and enter settings on the
display.
1
• Close the cover of the inverter.
Loosen the screw on the underside of the inverter
and lift the inverter off the wall mount.
2
3
7
• Disassemble the wall mount.
4
5
6
Disposal
Dispose of the inverter properly and in accordance with
the applicable regulations.
The box of the inverter is made of cardboard and can
be recycled as paper. Plastic parts and the packaging
sack can be sorted to plastic recycling.
Fig. 62: Control panel components
1
2
3
4
5
6
7
"Fault" LED (red)
"DC" LED (yellow)
"AC" LED (green)
"UP" arrow key
"DOWN" arrow key
Enter key
Display
Note: The screensaver appears on the screen when
you have not pressed a key for several minutes.
40
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
10 Inverter operating characteristics
10.2 Determine the operating status
(operating LEDs)
10.4 Displaying operating values and
changing settings
The LEDs on the front of the device indicate the current
operating status.
10.4.1 Call up main menu and navigate
LED
Explanation
"AC" LED lit green
The green LED signals that the inverter is
in feed-in operation mode if the output
voltage of the photovoltaic module is
more than 180 V.
In order to deactivate the screensaver and call up the
main menu:
"DC" LED lit yellow
The yellow LED signalises the active
status of the inverter control system.
It lights as soon as the output voltage of
the photovoltaic modules exceeds
100 V.
When the output voltage falls below
100 V, the yellow light goes out.
• press any key.
The background lighting of the display lights up.
• Press the key once again.
The screensaver disappears and the main menu
appears.
1
2
xx W
Once energy is being fed into the mains
grid, the yellow "DC" LED goes out and
the green "AC" LED lights up.
No LED is lit
The device is operationally ready but the
input voltage is less than 100 V.
OR: The device is switched off.
6
"Fault" LED lights up A fault has occurred. Remedial measures
or flashes red
can be found in chapter 10.5.
OR: "DC" LED
flashes yellow
Table 16: LED indicators in operation
10.3 Determining the operating status
(display)
The operating statuses are shown on the display.
Display
Explanation
Off
Input voltage on the DC side
(photovoltaic modules) is too low
Standby
Electronics are ready for operation, DC
voltage is still too low for feed-in
Starting
Internal control measurements
according to VDE 0126
Feed-in (MPP)
Measurement successful, MPP control
(MPP = maximum power point) active
Feed-in regulated
Feed-in power has been regulated due
to excessive device temperature
Table 17: Operating statuses
3
xx Wh
4
5
Feed-in (MPP)
Fig. 63: Main menu, menu settings selected
1
2
3
4
5
6
"DC" menu
"Settings" menu
"AC" menu
Current AC power
Fed-in daily yield
Operational status
— In the "DC" menu you can call up information about
the DC input side (see "DC menu" on page 42).
— In the "AC" menu you can view current performance
data of the AC output side (see "AC menu" on
page 42).
— In the "Settings" menu you can configure the
inverter (see "Settings menu" on page 43).
In order to call up a menu:
Press the arrow keys "UP" or "DOWN" repeatedly if
necessary until the symbol for the desired menu is
marked.
Press the Enter key.
The menu is opened.
After selecting and entering this menu item, you will
be taken back to the next higher menu level.
Table 18: Call up menu
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
41
10 Inverter operating characteristics
10.4.2 Navigation and entry within a
menu
10.4.4 AC menu
Navigation and entry
=
Object with a dashed line means: Object
is selected and can be activated with
"Enter".
Object with black background: Object is
active and can be edited.
Select with the arrow keys:
letters and numbers
Total yield
Yield
Operation time
Letter or number with black background
means: Letter or number is selected and
can be changed with the arrow keys.
Use this function to delete letters and
numbers (corresponds to the
backspace key).
Pressing "Enter" for an extended time
confirms the entry.
Phase 1
U=
I=
P=
Table 19: Navigation and entry in the settings menu
Fig. 65: "AC" menu
10.4.3 DC menu
• In the "DC" menu you can call up information about
the DC input side. Information about the voltage (U),
the amperage for direct current (I) and the power (P)
is available:
=
DC input
U=
I=
P=
Fig. 64: "DC" menu
42
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
10 Inverter operating characteristics
10.4.5 Settings menu
=
Basic settings
Language
Device information
SW/HW release1)
Select language
SW HW release
Serial number
Country setting
Certificate
FW
HW
UI
PAR
Inverter name
Serial number
Input
Country setting
Date/time
Set date
Set time of day
Communication
Network setting 1
Certificate
Auto IP
Network setting 2
Functional test
IP address
Subnet mask
No function
Router settings
Service menu
Service code
Ext. router
Router IP
RS485 settings
Factory setting2)
Bus termination
Bus bias voltage
RS485 address
Portal configuration
Portal code
Data export
Event messages3)
Immediately mailing
Fig. 66: Settings menu
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
43
10 Inverter operating characteristics
1 SW/HW version
Pure display (like type plate)
FW: Firmware version
HW: Hardware version
UI: Software version of the communication board
PAR: Version of the parameter file
2 Factory settings
In this menu the inverter can be reset to the factory setting.
Attention: All user settings are lost during this reset.
However, the country setting remains unchanged.
3 Event messages
Event messages can be faults or other events. The
"immediately mailing" option sends the event message
immediately following the data capture period to an
Internet portal.
Note: When a data flat rate is not present, the data transfer
with a GSM modem can result in higher costs.
Note: The menu structure shown here can differ from
the menu structure shown on your device depending
upon the version.
10.5 Faults
The inverter interrupts the feed-in and switches off in
the event of a fault.
• Check whether the DC switch or the external DC
isolator has been opened.
• Check if the fault is due to a mains power failure or if
the fuse between the feed meter and the inverter
has tripped.
DANGER
Risk of death due to electrical shock!
Deadly voltages are present in the inverter. Only a
qualified electrician may open and perform work on the
device.
If the fuse has tripped, notify the installer; if there is a
power failure, simply wait until the grid operator has
corrected the problem.
If the fault lasts only a short time (mains fault,
overheating, overload, etc.), then the inverter will
automatically resume operation as soon as the fault
has been resolved.
If the fault persists, notify your installer or the
manufacturer's customer service department
(for contact information, see back page).
Provide the following information:
— Device type and serial number. You will find this
information on the type plate on the exterior of the
housing.
— Description of fault (LED indicator and display
message).
44
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
10 Inverter operating characteristics
Event list
There is no need to take action when a fault occurs
occasionally or only briefly and the device resumes
operation. When a fault occurs over long periods or
recurs often, the cause must be determined and
corrected. The following table should be helpful in the
process.
Message on the screen
Event code: xxx
Type of fault
Description
Measures
1
Warning
Fan blockage le
Blockage of left fan
2
Warning
Fan blockage ri
Blockage of right fan
Clean fans where necessary
Check plugs, connection cables and fans for
damage
3
Warning
Fan speed le
Left fan too slow
Contact the hotline when the cause cannot be
determined
4
Warning
Fan speed ri
Right fan too slow
Attention: Fan test only possible in feed-in
operation mode!
Fan fault
Mains fault [red LED lights]
106
Fault,
Neutral conductor not connected
Neutral conductor correctly
Check neutral conductor
150
Fault,
Grid fault
Grid frequency error
Check grid frequency where possible
151 - 164
Fault,
Mains voltage
Grid error during feed-in
Check grid (especially when switching) ALL
phases and N against PE
165 - 178
Fault,
Frequency
Frequency error
Check frequency of the grid (operation with
emergency power unit not possible)
240
Fault,
Grid fault
Overcurrent on AC side
Contact technical support in the event of
enduring or constant occurrence
Mains voltage too high or too low
Check mains voltage
241
250
251 - 278
Fault,
Mains voltage
Mains voltage error
279 - 292
Fault,
Phase error
Phase error
Check phase angle where possible
Table 20: Events
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
45
10 Inverter operating characteristics
Message on the screen
Event code: xxx
Type of fault
Description
Measures
Switch-off due to residual current
Check the electrical installation for insulation
errors, the DC side (PV modules) as well as
the AC side (grid).
Causes for faults might include: worn cable
insulation, falsely connected plug-in
connectors, moisture.
Residual current [red LED blinks]
300 - 399
Fault
Residual current
Check insulation resistance (1kOhm / V,
min 500 kOhm)
Insulation error [red and yellow LEDs light up]
400 - 401
Fault
Insulation error
The insulation resistance is too low Check system at the module side for
damaged insulation, false plug connections,
dampness and damage in the module
insulation
Check insulation resistance (1kOhm / V,
min 500 kOhm)
Arc fault [red LED lights, yellow LED blinks and a signal tone is heard]
501
Fault
Arc
Parallel arc on string 1
502
Fault
Arc
Parallel arc on string 2
503
Fault
Arc
Parallel arc on string 3
504
Fault
Arc
Serial arc on string 1
505
Fault
Arc
Serial arc on string 2
506
Fault
Arc
Serial arc on string 3
After each arc error, be absolutely sure to
inspect the entire installation of the PV system
for damage that could indicate an arc.
Inform your installer where appropriate.
Overheating [green LED flashes]
601 - 615
Fault
Overheating
Device has become too hot. The
inverter has derated or temporarily
switched off the power.
Wait until the device has cooled down.
The installation site is possibly not perfect and
the inverter is not receiving enough cooling air.
The inverter should not be exposed to direct
sunlight where possible.
Check fans for dirt and clean, if necessary.
System fault [red and yellow LEDs flash]
800 - 999
Fault
System fault
Internal system fault
Sporadic, brief occurrence:
No measures necessary
Frequent, brief occurrence:
Contact technical support
Permanent occurrence:
De-energise the inverter completely.
Recommence operation after 5 minutes
In the event of continuing problems, contact
technical support
Table 20: Events
46
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
11 System monitoring
11 System monitoring
Also observe the descriptions about communication
and accessories in chapter 9.2 from page 32 on.
The inverter regularly records performance data
(voltage, power, energy) of the DC and the AC side.
Note: Some of the data will also be shown on the
inverter display during operation (see chapter 10.4).
There are two ways of retrieving, displaying and
permanently saving all log data:
— Transfer the log data to a solar portal.
— Download the log data with a computer.
You can, of course, make use of both options together.
Transfer the log data to a solar portal.
The inverter can transfer its log data automatically and
at regular intervals to a solar portal in the Internet. The
data transfer may incur additional costs. As a rule, you
must register the inverter with the solar portal operator.
You can find further information at our service hotline.
See also chapter 9.2.1.
The solar portal displays the data on an Internet page
and archives them. This enables you to view the status
of your photovoltaic system at any time and from
anywhere. All you need is access to the Internet
(computer, Internet hotspot, mobile phone, etc.).
Downloading the log data onto a computer.
Retrieve the performance data of your photovoltaic
system directly from the inverter. To do so, establish a
connection to your inverter with a computer. The
integrated web server displays the current performance
data clearly on HTML pages so that you can access
the data with any conventional Internet browser. No
special software is needed. You can also download all
saved log data and display it using the free visualisation
software PIKO MasterControl (see chapter 11.3).
Alternatively, you can use a spreadsheet application.
11.1 Logging into the web server
• Switch on your computer.
• Only for dialling in via GSM modem: Establish a
dialling connection to the modem in the inverter.
Note: Ensure that the proxy server for LAN
connections has been deactivated.
You can find further instructions concerning network
settings in the operating system manual for your
computer.
• If your computer is connected to the inverter via a
network cable, enter an "S" into the address line of
the browser, followed by the serial number of the
inverter (see type plate), for example
http://S12345FD323456
➜
The log-in window for the web server opens.
• If your computer is connected to the modem in the
inverter via dial-up connection, enter the letters
"wr.S" in the browser's address line followed by the
serial number of the inverter (see type plate), for
example http://wr.S.12345FD323456
➜
The log-in window for the web server opens.
Note: Instead of the serial number, you can also use
the name of the inverter or the IP address, for example
http://name or for a dial-in connection http://wr.name
or http://192.168.1.51 (if the inverter has this IP
address).
You can find out how to allocate a name to the inverter
or to change the name in section ‹Changing the name›
in chapter 9.2.
• Enter user name and password. The factory
defaults for user name and password are set as
follows:
User name: pvserver
Password: pvwr
You can change the password in the settings of the
web server at any time (see section ‹Changing the
password› in chapter 9.2). The user name cannot
be changed.
• Click on "OK" to confirm your entry.
➜
The main screen of the web server will be
displayed.
• Open your Internet browser program.
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
47
11 System monitoring
11.3 Display log data
The log data include information on your photovoltaic
system.
In order to comfortably display the log data, we
recommend using the visualisation software PIKO
MasterControl V2 (LC V2). With this software you can
directly access the inverter, download and display the
data. You can download this free of charge from the
download area of our website
www.kostal-solar-electric.com
Note: The software PIKO Master Control V2 (PMC V2)
cannot import DAT or txt files.
Fig. 67: Main page of the web server
By clicking on the button "Display/update", you can
update the data or, when operating several inverters
that are linked via an RS485 network, select a different
inverter via its RS485 address and retrieve its current
performance data.
11.2 Downloading log data
With the log data it is possible to display the yield data
of the PV system. Errors can also be determined with
the log data.
The log data of the inverter can be downloaded as a
DAT or a txt file. (The log data are explained in table 21
on page 48.)
Procedure:
• On the main page of the web server, click on the
"History" link.
➜
A window with the options "Open" or "Save"
opens.
— Option "Open": the data can be opened and
processed with a table calculation program.
— Option "Save": the data are saved on your hard
drive. After saving, these data can be displayed and
further processed.
Note: Regularly create backup copies of your saved
log data.
Fig. 68: Visualisation software PIKO MasterControl V2
If you are not using visualisation software, you can
display the log data with any conventional spreadsheet
application.
Entry
Explanation
Time
Details in seconds of the time since the inverter
went into operation
DC1 U
DC2 U
DC3 U
DC voltage:
Input voltage of the respective string (1, 2 and 3)
in V
DC1 I
DC2 I
DC3 I
DC current:
Input current of the respective string (1, 2 and 3)
in mA
DC1 P
DC2 P
DC3 P
DC power:
Input power of the respective string (1, 2 and 3)
in W
DC1 T
DC2 T
DC3 T
DC temperature:
Details for service
DC1 S
DC2 S
DC3 S
DC status:
Details for service
AC1 U
AC2 U
AC3 U
AC voltage:
Output voltage of the respective phase*
(1, 2 and 3) in V
AC1 I
AC2 I
AC3 I
AC current:
Output current of the respective phase*
(1, 2 and 3) in mA
Table 21: Log data
48
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
11 System monitoring
Entry
Explanation
AC1 P
AC2 P
AC3 P
AC power:
Output power of the respective phase*
(1, 2 and 3) in W
AC1 T
AC2 T
AC3 T
AC temperature:
Details for service
AC F
AC frequency:
Grid frequency in Hz
AC S
AC status:
Value Meaning
0
Inverter off
1
Inverter in standby
2
Inverter starting up
28
Feed-in*
Abbreviations
— AC: alternating current, designation for alternating
current
— DC: direct current, designation for direct current
— U: voltage in volts [V]
— I: current strength in milliamps [mA]
FC I
Residual current:
Measured residual current in mA
AIn1
AIn2
AIn3
AIn4
Analogue input voltage:
display of the analogue inputs 1 to 4 of the
communication board.
The measured voltage value in V can be
calculated with the value from the table (digits)
and the following formula:
input voltage [V] = (10/1024) * digits
If the S0 input is used to count the energy
pulses, both table columns Aln3 and Aln4 give
the sum of the energy pulses per log interval.
This total value is calculated as follows:
Etotal = AIn3 * 216 + AIn4
— P: power in watts [W]
— E: energy in kilowatt hours [kWh]
— F: frequency in Hertz [Hz]
— R: resistance in kiloohms [kohm]
— T: counting unit in points [digits]
— AIn: counting unit in points [digits]
— Time: details in seconds [sec] since the inverter was
put into operation
11.4 End data transfer to a solar portal
You can end an activated data transfer to a solar portal
at any time.
• Open the setting page of the web server.
• Click the box next to the name of the portal to
deactivate the data export to the solar portal ( ).
ERR
General malfunctions
• Click on "Accept" to apply and save the settings.
ENS S
Status of the ENS (device for grid monitoring
with assigned switching elements):
Status of grid monitoring
Value Meaning
0
Grid monitoring deactivated
1
Initialisation phase
2
Pending (start-up of inverter)
3
Running (current feed-in to the grid)
15
Error
Note: To activate the data transfer, see chapter 9.2.3
(page 37).
ENS Err
Malfunction of the ENS (device for grid
monitoring with assigned switching elements)
KB S
Internal status of the communication:
internal communication status when switching
to AC grid.
Total E
Total energy:
total fed-in energy in kWh when switching to AC
grid.
Iso R
Insulation resistance:
insulation resistance in kOhm when switching to
AC grid.
Event
POR event, "power on reset":
renewed start-up of communication after a loss
of AC voltage.
Table 21: Log data (cont.)
* With limited input power use
PIKO 4.2/5.5/7.0/8.3/10.1 only one or two phases for
current feed-in. The device selects the phase on a
random basis each time.
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
49
12 Appendix
12 Appendix
12.1 Technical data
PIKO
4.2 (DCS)
5.5 (DCS)
7.0 (DCS, AD)3
8.3 (DCS, AD)3
10.1 (DCS, AD)3
2/2
3/3
2/2
2/2
3/3
Input side (DC)
Number of DC inputs/
Number of MPP trackers
Recommended DC power
5 to 10% above AC rated output1
Max. DC input voltage
(idling voltage)
950 V
Min. DC input voltage
180 V
DC start input voltage
180 V
DC nominal voltage
680 V
Max. MPP voltage
850 V
Min. MPP voltage in singletracker operation
500 V
660 V
Min. MPP voltage in dualtracker or parallel operation
360 V
360 V
9 A / 13 A2
9A
12.5 A / 25 A2
13 A
–
25 A
Max. DC input current
Max. DC input current with
parallel connection
Not recommended
400 V
400 V
420 V
Output side (AC)
Number of feed-in phases
3
AC mains voltage
Max. AC output current
AC rated output
(cos ϕ = 1)
AC apparent power
(cos ϕ, adj)
3/N/PE, AC, 230/400 V
6.1 A
8A
10.2 A
12 A
14.5 A
4,200 W
(UK: 4000 W,
PT1: 3680 W PT2:
3,450 W)
5,500 W
(IC: 5000 W,
PT: 5000 W)
7,000 W
8,300 W
10,000 W
4,200 VA
5,500 VA
7,000 VA
8,300 VA
10,000 VA
Power factor cos ϕACr
0.9 capacitive ... 1 ... 0.9 inductive
Max. degree of efficiency
96.5%
96.2%
97.0%
97.0%
97.0%
European efficiency ηEU
95.4%
95.7%
96.3%
96.3%
96.4%
ηmax
Rated frequency
50 Hz
Table 22: Technical data
1 dependent upon ambient temperature and
solar irradiation
2 with parallel connection of two MPP trackers
3 This inverter is available in two variants: with or without arc detection
50
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
12 Appendix
PIKO
4.2 (DCS)
5.5 (DCS)
Power requirements for night
operation
7.0 (DCS, AD)3
8.3 (DCS, AD)3
10.1 (DCS, AD)3
Inverter < 1 W, communication board < 1.7 W
Protection class
I
Transformerless topology
Transformer-less
Type of grid monitoring
according to national certificate
Reverse polarity protection
Short circuit diodes on DC side
Operator protection
AFI and ground monitoring
Conditions of usage,
protection type according to
IEC 60529
inside + outside, IP 55
Ambient temperature
–20…+60 °C
Air humidity
0…95%
Cooling principle
regulated fans
Communication interfaces
Ethernet (RJ45) (2x for communication board 2, incl. integrated switch),
RS485, S0, 4x analogue inputs
Max. noise
< 33 dB(A)
Fan 25% - 33 dB(A)
Fan 50% - 41 dB(A)
Fan 75...100% - 46 dB(A)
Connection technology at
input side
MC 4
Connection technology at
output side
Spring-loaded terminal strip
Dimensions (W × D × H)
420 × 211 × 350 mm
Weight (approx.)
20.5 kg
Disconnection device
520 × 230 × 450 mm
21.1 kg
33 kg
33 kg
34 kg
electronic isolation switch, integrated
Table 22: Technical data (cont.)
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
51
12 Appendix
12.2 Block diagram
2
1
0
3
1
9
8
+
4
-
–
L1
+
-
–
+
-
L2
L3
–
N
+
-
PE
–
7
6
Fig. 69: Block diagram (illustration shows PIKO 10.1)
1
2
3
4
5
6
7
8
9
52
DC regulator (1 to 3, depending on model)
System control with MPP regulators
Display and communication
Grid monitoring and shut-down
3-phase AC output
Power supply unit
Inverter bridge
PV string (1 to 3, depending on model)
Electronic DC load break switch
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
5
12 Appendix
12.3 Type plate
12.4 Warranty and service information
The type plate is located on the right side of the
inverter. You will find the device type and the most
important technical data listed on the type plate.
Information on the warranty can be found in the
warranty conditions, which are included separately.
For service information and a possible shipment of
parts, we require your device type and the serial
number. You will find this information on the type plate
on the exterior of the housing.
1
Hanferstraße 6 – D-79108 Freiburg
+49 (0) 761-47744-100
www.kostal-solar-electric.com
2
3
4
5
6
7
8
9
10
11
12
13
14
15
If parts are required, use only genuine replacement
parts.
XXXXXXXX
DC input: UMPP = XXX…XXX V,
UMAX = XXX V,
IMAX = XX.X A
AC output:XXXXXX / XXXXXX,
XXXXX VA, (cos ϕ=1, adj.) max. XX.X A
(XX: YYYYW (cos ϕ=1))
IP 55, -20°C…60°C, OVC DC: II / AC: III
DIN V VDE V 0126-1-1:2006-02
VDE-AR-N 4105: 2011-08
CEI 0-21
Art.-Nr.: NNNNNNNN
Ser.-Nr.: XXXXXABCXXXXX
HW:
XXXX
Par / PIB: XX.XX
FW:
XX.XX
UI: XX.XX
Serviceupdate: XXXXXXXX
Do you have any technical questions regarding your
inverter? Our hotline +49 (0)761 477 44 - 222 is happy
to provide assistance.
20
19
18
17
16
XXXXXABCXXXX
Fig. 70: Type plate (example)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Name and address of manufacturer
Device type
MPP control range
Maximum input voltage DC
Maximum DC input current
Number of feed-in phases
Maximum AC power
Deviating power output with country setting
Protection type and ambient temperature range
Requirements conforming to those of the built-in grid
monitoring
Item number
Serial number
Version number of the hardware
Version number of the firmware
Removable guarantee label with device type
and serial number
Version number of the user interface of the device
Version number of set of parameters
Overvoltage category
Maximum output current AC
Output voltage (nominal)
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
53
Index
Index
A
AC cable cross-section . . . . . . . . . . . . . . . . . . . . . .17
Active power control . . . . . . . . . . . . . . . . . 13, 30, 35
Alarm output . . . . . . . . . . . . . . . . . . . . . . . . . . 29, 34
Auto IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
C
Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Connecting strings . . . . . . . . . . . . . . . . . . . . . . . . .18
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Country of use . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
D
Data saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
DC cable cross-section . . . . . . . . . . . . . . . . . . . . . .18
DHCP server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
DynDNS service . . . . . . . . . . . . . . . . . . . . . . . . . . .25
E
Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Event list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
F
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Function of the inverter . . . . . . . . . . . . . . . . . . . 5, 10
G
Grid monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
GSM PIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33, 36
H
History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Hotline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5, 53
I
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Installing accessories . . . . . . . . . . . . . . . . . . . . . . .29
Interfaces . . . . . . . . . . . . . . . . . . . . . . 21, 29, 30, 51
Internal consumption . . . . . . . . . . . . . . . . . 12, 30, 34
IP address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
O
Opening the housing . . . . . . . . . . . . . . . . . . . . . . . 16
Operating statuses . . . . . . . . . . . . . . . . . . . . . . . . . 41
P
Parallel connection . . . . . . . . . . . . . . . . . . . . . . . . . 18
Password . . . . . . . . . . . . . . . . . . . . . . . . . . 22, 36, 47
Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Proxy server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
R
Reactive power control . . . . . . . . . . . . . . . . . . . . . . 13
Ripple control receiver . . . . . . . . . . . . . . . . . . . . . . 35
RJ45 socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Router, external . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
RS485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31, 33
S
S0 interface . . . . . . . . . . . . . . . . . . . . . . . . . . . 29, 34
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Saving interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Sealing cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Solar portal . . . . . . . . . . . . . . . . . . . . . . . . . 28, 47, 49
Spring-loaded terminal strips . . . . . . . . . . . . . . . . . 17
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Switch output . . . . . . . . . . . . . . . . . . . . . . . . . . 29, 34
T
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Type plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
U
User name . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22, 47
V
Visualisation software . . . . . . . . . . . . . . . . . . . . 47, 48
W
Wall mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Web server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
L
Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
LED indicator lights . . . . . . . . . . . . . . . . . . . . . . . . .41
Line circuit breaker . . . . . . . . . . . . . . . . . . . . . . . . .18
Log data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Log-in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22, 47
M
Modem (analogue, GSM) . . . . . . . . . . . . . . . . . . . .37
N
network cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Network settings . . . . . . . . . . . . . . . . . . . . . . . . . . .33
54
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
Index
05/2013 | DOC01318011 | Operating manual for PIKO inverter 4.2 - 10.1
55
KOSTAL Solar Electric GmbH
Hanferstr. 6
79108 Freiburg i. Br.
Deutschland
Telefon: +49 761 477 44 - 100
Fax: +49 761 477 44 - 111
KOSTAL Solar Electric Ibérica S.L.
Edicio abm
Ronda Narciso Monturiol y Estarriol, 3
Torre B, despachos 2 y 3
Parque Tecnológico de Valencia
46980 Valencia
España
Teléfono : +34 961 824 - 930
Fax: +34 961 824 - 931
KOSTAL Solar Electric France SARL
11, rue Jacques Cartier
78280 Guyancourt
France
Téléphone: +33 1 61 38 - 4117
Fax: +33 1 61 38 - 3940
KOSTAL Solar Electric Hellas ...
47 Steliou Kazantzidi st., P.O. Box: 60080
1st building – 2nd entrance
55535, Pilea, Thessaloniki
Greece / "#
$elephone: +30 2310 477 - 550
Fax: +30 2310 477 - 551
KOSTAL Solar Electric Italia Srl
Via Genova, 57
10098 Rivoli (TO)
Italia
Telefono: +39 011 97 82 - 420
Fax: +39 011 97 82 - 432
www.kostal-solar-electric.com
Open as PDF
Similar pages