Kaco Powador 1501xi, Powador 2501xi, Powador 3501xi, Powador 4501xi, Powador 5001xi Operating Instructions Manual
Powador 1501xi
Powador 2501xi*
Powador 3501xi
Powador 4501xi
Powador 5001xi**
Operating instructions
Operator
Skilled and authorised electrician
* available only in France
** available only in Korea and Spain
Operating Instructions Powador 1501xi/2501xi*/3501xi/4501xi/5001xi** Page 3
For the operator
Operating Instructions
Powador 1501xi / 2501xi* / 3501xi / 4501xi / 5001xi**
* available only in France
** available only in Korea and Spain
General Notes ..........................................................4
1.1 Retention of documents .............................................4
1.2 Symbols used in this document ..................................4
1.3 CE marking................................................................4
1.4 Name plate ...............................................................4
2 Safety Instructions and Regulations ..........................5
3 Notes on Installation and Operation ...........................5
3.1 Intended use .............................................................5
3.2 Factory warranty and liability .....................................5
3.3 Service ......................................................................6
4 Operation ..................................................................6
4.1 Overview of controls and displays .............................6
4.2 LED displays ..............................................................6
4.3 Keys “1” and “2” .....................................................7
4.4 Level 1 menu - Display mode .....................................8
4.5 Level 2 menu - Confi guration mode ...........................9
4.6 Night start-up key......................................................9
4.7 The serial RS232 interface .......................................10
4.8 The RS485 interface ................................................10
4.9 Display ....................................................................11
5 Accessories..............................................................13
6 Troubleshooting .......................................................14
7 Recycling and Disposal ............................................ 16
The installation instructions for authorised
electricians begin after the operating instructions
Page 4 Operating Instructions Powador 1501xi/2501xi*/3501xi/4501xi/5001xi**
General Notes
By purchasing an inverter from KACO new energy GmbH,
you have opted for a reliable, high-performance technology
and will profi t from KACO new energys many years of experience in the fi eld of current inverter technology and power
electronics.The Powador 1501xi, Powador 2501xi*, Powador
3501xi, Powador 4501xi and Powador 5001xi** inverters are
galvanically isolated, fanless, robust, high-effi ciency inverters.
Using the illuminated display and intuitive menu navigation,
you can display the most important information pertaining to
the inverter’s grid feed. The mounting plate included in the
delivery ensures optimal, easy wall installation. The inverter’s
data can be transmitted over the serial interface to a PC, where
it can then be visualised.With protection class IP54, the units
are ready for operation in all ambient conditions. The inverters can also be used in agriculture and industry without any
problems.
1 About This
Documentation
The following notes guide you through all of the documentation. Additional documents are applicable in conjunction with
these operating and installation instructions.
We assume no liability for any damage caused by failure to
observe these instructions.
Other applicable documents
When installing the inverters, be sure to observe all assembly
and installation instructions for components and other parts of
the system. These instructions are delivered together with the
respective components and additional parts of the system.
1.1 Retention of documents
Please pass these operating and installation instructions on to
the plant operator. These documents must be stored near the
installation and must be available at all times.
1.2 Symbols used in this document
When operating the inverter, observe the safety instructions
provided in these operating instructions.
Risk of voltage!
1.3 CE marking
The CE marking is used to document that the Powador inverter
shown on the name plate fulfi ls the fundamental requirements
of the following relevant directives:
Directive concerning electromagnetic compatibility
(Council Directive 2004/108/EC)
Low voltage directive
(Council Directive 2006/95/EC).
1.4 Name plate
The name plate showing the exact designation of the unit is
located on the support plate on the underside of the housing.
* available only in France
** available only in Korea and Spain
Section 1 · About This Documentation
DANGER
Failure to observe a warning indicated in this manner will directly lead to serious bodily injury or
death.
Failure to observe a warning indicated in this manner may directly lead to serious bodily injury or
death.
WARNING
CAUTION
Failure to observe a warning indicated in this manner may lead to minor or moderate bodily injury
or to serious damage to property.
AT TENT I ON
Failure to observe a warning indicated in this manner may
lead to damage to property.
NOTE
Useful information and notes.
ACTION
This symbol indicates that a certain action is required.
IMPORTANT
Failure to observe this information may result in reduced
convenience or impaired functionality.
Operating Instructions Powador 1501xi/2501xi*/3501xi/4501xi/5001xi** Page 5
2 Safety Instructions and
Regulations
Accident prevention regulations
The inverter must be installed by an authorised electrician
who is responsible for observing existing standards and regulations.
The proper and safe operation of this unit requires proper
transportation, storage, assembly and installation, as well as
careful operation and maintenance.
The inverter may only be operated by persons who have read
and understood the operating instructions.
Modifi cations
It is generally not permitted to make changes to the inverter.
Always consult an authorised electrician for modifi cations
to the surroundings of the inverter, as they are qualifi ed to
undertake such work.
Transportation
The inverter is subjected to extensive testing and inspections
in our test fi eld. This is how we ensure the high quality of our
products. Our inverters leave our factory in proper electrical
and mechanical condition. Special packaging ensures safe and
careful transportation. However, transport damage may still
occur. The shipping company is responsible in such cases.
Thoroughly inspect the inverter upon delivery. Immediately
notify the responsible shipping company if you discover any
damage to the packaging which indicates that the inverter
may have been damaged or if you discover any visible damage
to the inverter.
If necessary, your solar installer or KACO new energy GmbH will
assist you. Damage reports must be received by the shipping
company in writing within six days of receipt of the goods.
When transporting the inverter, the original or equivalent packaging is to be used, as this ensures safe transport.
3 Notes on Installation and
Operation
3.1 Intended use
The Powador inverter converts the DC power generated by the
photovoltaic (PV) modules into AC power and feeds this into
the power grid.
The Powador inverter is built according to the state of the art
and recognised safety rules. Nevertheless, improper use may
cause lethal hazards for the operator or third parties, or may
result in damage to the units and other property.
The inverter may only be operated with a permanent connection to the public power grid. The inverter is not intended for
mobile use.
Any other or additional use is not considered the intended use.
The manufacturer/supplier is not liable for damage caused by
such unintended use. Damage caused by such unintended use
is at the sole risk of the operator.
Intended use also includes adherence to the operating and
installation instructions. Your authorised electrician undertakes
the registration with your power supply company and obtains
approval for your photovoltaic installation from the supply
grid operator on your behalf. Some of the documents that you
require in order to register your photovoltaic installation and
have it approved are included in the installation instructions
(Installation instructions, section 9, Documents).
3.2 Factory warranty and liability
KACO new energy GmbH issues a warranty of seven years on
the Powador inverter starting from the date of installation,
but at most 90 months after shipment by KACO new energy
GmbH.
During this time, KACO new energy GmbH guarantees the
proper function of the units and to undertake repairs at the
factory free of charge in the event of a defect for which we
are responsible.
Contact your specialty dealer or installer if your unit exhibits a
defect or fault during the warranty period.
Warranty claims are excluded in the following cases:
Use of the units in ways not intended
–
Improper installation and installation that does not comply –
with standards
Improper operation
–
Operation of units with defective protective equipment –
Unauthorised modifi cations to the units or repair attempts –
Infl uence of foreign objects and force majeure (lightning, –
overvoltage, severe weather, fi re)
Insuffi cient ventilation of the unit
–
Failure to observe the relevant safety regulations –
Transport damage –
Section 2 · Safety Instructions and Regulations
Section 3 · Notes on Installation and Operation
DANGER
Danger due to lethal voltages.
Lethal voltages are present within the unit and on
the power supply lines. Therefore, only authorised
electricians may install and open the unit.
Even when the unit is disconnected, high contact
voltages may still be present within the unit.
CAUTION
Risk of damage due to improper modifi cations.
Never modify or manipulate the inverter or other
components of the system.
Page 6 Operating Instructions Powador 1501xi/2501xi*/3501xi/4501xi/5001xi**
All warranty claims must be handled at the premises of KACO
new energy GmbH. The unit must, where possible, be returned
in its original or equivalent packaging. The costs for these services cannot be borne by KACO new energy GmbH.
KACO new energy GmbH will perform warranty services only
if the defective unit is returned to KACO new energy GmbH
together with a copy of the invoice which was issued to the user
by the dealer. The name plate on the unit must be fully legible.
If these requirements are not fulfi lled, KACO new energy GmbH
reserves the right to deny warranty services.
The warranty period for repairs or replacement deliveries is six
months after delivery. However, it continues at least until the
end of the original warranty period for the delivery item.
3.3 Service
We place special emphasis on the quality and longevity of our
inverters, starting with the product development phase. More
than 60 years of experience in the fi eld of current inverters
support us in this philosophy.
However, despite all quality assurance measures, faults may
occur in exceptional cases. In such cases, KACO new energy
GmbH will provide you with the maximum possible support.
KACO n ew energy GmbH will make ev ery eff ort to remedy such
faults in an expeditious manner and without a great deal of
bureaucracy. In such cases, contact our service department
directly by telephone at
+49 (0)7132-3818-660
4 Operation
The grid feed process begins in the morning if suffi cient light
is available, and, therefore, if a certain minimum voltage is
present in the inverter. The inverter enables grid feed after a
country-specifi c start-up period (see Installation Instructions,
section 4, Technical Data).
If, as nightfall approaches, the voltage drops below the
minimum voltage value, grid feed mode ends and the inverter
switches off.
4.1 Overview of controls and displays
Figure 4.1: Overview of the Powador
Legend
1 Display
Display of measured values and confi guration para meters
2 LED displays
Display of the operating state
3 Control keys
Switch between display and confi guration
of parameters
4 Cable feedthrough for DC connection
5 Night start-up key
For activating the display after nightfall
6 RS232 interface
7 Cable feedthrough for RS485 interface cable
8 Cable feedthrough for AC connection
Section 3 · Notes on Installation and Operation
Section 4 · Operation
CAUTION
Incorrect use is prohibited.
Operating Instructions Powador 1501xi/2501xi*/3501xi/4501xi/5001xi** Page 7
4.2 LED displays
During normal operation, the photovoltaic modules generate
voltage as soon as there is suffi cient insolation. If this voltage
is present in the inverter at a certain level for a certain time,
the inverter begins feeding into the grid.
The inverter is equipped with three LEDs, which give information about the various operating states as follows.
Figure 4.2: LED displays
LED (1) (green):
The LED begins to light up starting from a photovoltaic module
voltage of approx. 100 V and goes out again if the module voltage is lower than 80 V.
LED (1) indicates that the inverter and the inverter control system
are active. If this LED is not lit, the inverter cannot feed into
the grid. In normal mode, the LED begins to light up in the
morning (if there is suffi cient sunlight) and goes out as nightfall
approaches.
LED (2) (green):
The LED always lights up when the inverter is feeding into the
grid. For this to happen, the photovoltaic module voltage must
exceed 125 V for a country-specifi c time period (see Installation
Instructions, section 4, Technical Data) and suffi cient power
must be provided by the PV generator. LED (2) can, therefore,
only light up when LED (1) is already lit.
In normal operating mode, the inverter begins feeding into
the grid in the morning and stops feeding into the grid as it
increasingly becomes darker. On cloudy days and in the winter
months, the grid feed can – depending on the PV generator
and the current grid feed power – be temporarily interrupted
and subsequently re-started. This process can repeat itself several times, especially in the morning and evening. This is not a
sign of faulty operation. It is normal operating behaviour.
LED (3) (red):
The LED indicates that the grid feed was stopped due to a
fault.
The following faults activate LED (3):
Line overvoltage or undervoltage
–
Faulty line impedance or line frequency –
Generator voltage is too high –
Generator power is too high –
Shutdown due to the temperature being too high –
Fault in the unit –
Wait approx. 10 minutes to see if the fault is only temporary
in nature. If this is not the case, notify your authorised electrician.
If the fault is cleared, the grid feed begins once again after
a country-specifi c time period (see Installation Instructions,
section 4, Technical Data).
Check whether the fault in question relates to a general power
failure or whether the fuse between the meter and the inverter
ha s bl own. I f th e fuse has blo wn, no tif y your au tho rised tec hnician. If there was a power failure, simply wait until the fault has
been cleared. The system automatically re-starts.
4.3 Keys “1” and “2”
Figure 4.3: Powador control keys
Key “1” is used to switch between the various displays for
measured values and data. Key “2” is used to make settings,
such as those relating to the date and time. Here, menu
navigation is divided into two levels. In level 1 (display mode),
measured values such as the solar generator voltage can be
read. Here, only key “1” is activated. In level 2 (confi guration
mode), key “1” is also used to navigate through the individual
displays, and settings are confi gured with key “2”.
Section 4 · Operation
1
2
3
!
ok
IMPORTANT
If the grid feed phase fails (p ower failure on the public grid),
LED (3) does not light up. If this happens, all LEDs and the
display go out. The inverter is shut down completely. The
inverter cannot resume its normal operation until the grid
feed phase is available once again.
ACTION
By pressing key “1” for approx. 1 second, you can choose
which measured value is to be displayed. The menus are
continuous, which means that when you arrive at the last
entry in a menu, the fi rst entry is displayed once again the
next time key “1” is pressed (see fi gure 4.4).
Page 8 Operating Instructions Powador 1501xi/2501xi*/3501xi/4501xi/5001xi**
4.4 Level 1 menu - Display mode
The display menu is displayed once the Powador inverter
starts up. Measured values and all of the meters are displayed
here. Key “1” is used to navigate through the individual menu
items.
Display of inverter type
Generator voltage and current
Grid voltage, current and power
Daily peak capacity
Temperature inside device
Status display
Date and time
Yield today
Annual yield
Tot al y ield
Operating hours today
Annual operating hours
Total operating hours
Figure 4.4: Display mode menu
Powador 1501xi / 2501xi* / 3501xi / 4501xi / 5001xi**
The current voltage and current of the solar generator that is connected to the
inverter.
The current line voltage, line current and the power that is currently being fed
into the grid.
The respective day’s peak power that was fed into the grid for a short time.
Displays the current heat sink temperature in °C. If the unit becomes too hot,
either the power is limited or the unit switches off.
Various status notifi cations. The explanation can be found in table 4.3, page 12.
Displays the date and time.
The power that has been fed into the grid during the current day.
The power that has been fed into the grid during the current calendar year.
The power that has been fed into the grid since start-up of the inverter.
Today’s hours of operation.
The hours of operation during the current calendar year.
The hours of operation since start-up of the inverter.
Explanation of the menu items in display mode
If key “1” is not pressed for a longer period of time, the display automatically shows the power that is currently being fed into the grid.
* available only in France
** available only in Korea and Spain
Section 4 · Operation
Operating Instructions Powador 1501xi/2501xi*/3501xi/4501xi/5001xi** Page 9
4.5 Level 2 menu - Confi guration mode
Time set (hour)
Time set (minute)
Date set (year)
Date set (month)
Date set (day)
Display of software version
Clear the power meter
Select and set RS485
interface address
Quick start
Figure 4.5: Confi guration mode menu
Setting the time and date
The setting values are continuous, i.e. after you reach the
maximum value, the display returns to the minimum value the
next time key “1” is pressed. When setting the year in the
date display, the year setting value goes up to 2050. It then
returns to 2005.
Clearing the grid feed meter
When the grid feed meter is cleared, the values for “Daily
peak capacity”, “Yield today”, “Annual yield”, “Total yield”,
“Operating hours today”, “Annual operating hours” and “Total
operating hours” are cleared. The required code is “2” and is
entered using key “2”.
Choice of interface and address setting
With the menu item “Select interface“, you can use key “2” to
switch between the RS232 and RS485 interfaces.
If the RS485 interface is activated, you can reach the address
setting by pressing key “1”. You can set the address from 1 to
32 by continuously pressing key “2”. The address then returns
to 1.
The RS485 interface is used to communicate with the
Powador-proLOG. If several inverters are connected to a
Powador-proLOG, each address may only be used once. It is,
therefore, possible to monitor 32 Powador inverters with one
Powador-proLOG.
4.6 Night start-up key
Figure 4.6: Underside of the Powador
Legend
1 Night start-up key
For activating the display after nightfall
2 RS232 interface
The unit switches off in the evening as nightfall approaches.
The display is no longer shown. In order to retrieve the values
for the current day after the display has switched off, the unit
can also be activated during the night by pressing the night
start-up key (see fi gure 4.6).
Section 4 · Operation
ACTION
To access confi guration mode (level 2), press both keys
simultaneously for approx. 1 second. Pressing key “1”
now switches to the next menu item and changes can be
made in the respective menu item by pressing key “2”.
The setting value increases each time key “2” is pressed.
If the maximum value has been reached, the value returns
to the minimum setting choice. The various settings are
shown in fi gure 4.5.
NOTE
The grid feed meter can only be cleared. You cannot set
the meter to a specifi c value.
ACTION
To do this, press the night start-up key “1” on the underside
of the unit for approx. 5 seconds until a display appears.
Page 10 Operating Instructions Powador 1501xi/2501xi*/3501xi/4501xi/5001xi**
You can now scroll through the menu and retrieve the values
for the current day. If over one minute elapses without a key
being pressed, the display automatically switches off again.
The inverter saves only the current values of the day. The
“Annual operating hours”, “Total operating hours”, “Annual
yield” and “Total yield” data is saved and added up for each
setting. This data remains in the memory even if the unit has
not been in operation for a considerable period of time. If
required, the date and time may have to be confi gured once
again if the unit has not been in operation for several days.
4.7 The serial RS232 interface
Operating data can be transmitted to a computer (e.g.
notebook) over a galvanically isolated serial interface (see
fi gure 4.6 - (2)). It can then be individually processed further
using standard spreadsheet software.
A standard serial 1:1 interface cable is all that is required to
connect the inverter to the computer. The cable length should
not exceed 20 metres.
The data from the inverter is sent unidirectionally as pure
ASCII text over the serial interface. The data is not checked
for errors.
Powador Sub-D
male 9-pole
Meaning
PC Sub-D
female 9-pole
2TXD2
3RXD3
4RTS4
5GND5
Tab le 4.1: RS232 interface pin assignment
The RS232 interface has the following parameters:
Baud rate Data bits Parity Stop bits Protocol
9600 baud 8 none 1 none
Figure 4.7 shows, as an example, a few of lines of transmission
via the RS232 interface.
Data can be received with any terminal emulator, which comes
with every operating system, or with the KACO-viso visualisation tool.
Together with the Powador inverter, KACO-viso takes over
the role of a data logger. It saves the data from the inverter
and displays it in various diagram types as a daily or monthly
representation.
The PC, however, must also run continuously. Because of the
amount of energy used, this type of monitoring only makes
sense over limited periods, such as during a fault analysis. For
permanent monitoring, we recommend the optional accessories Powador-display, Powador-easyLOG or Powador-proLOG
(see section 5).
The interface of the connected PC or laptop must comply with
the standard for RS232 interfaces. Some computer manufacturers do not fully comply with the standard. In such cases,
problems may occur during data transmission.
4.8 The RS485 interface
Powador inverters are also equipped with an RS485 interface
(see Installation Instructions, fi gure 6.11) in order to enable
remote monitoring of your photovoltaic installation. Several
inverters can be monitored over this interface at the same time.
Using the Powador-proLOG series, you can receive yield and
operating data as well as error messages by SMS (text message)
or e-mail. This monitoring option is especially recommended
for situations where you are unable to check the functionality
of the installation on-site at regular intervals, e.g. if you live
far away from the installation site. In addition, you can use the
Powador-link within your installation to bridge long distances
between several inverters or between an inverter and the
Powador-proLOG using wireless radio transmission. Contact
your installer if you wish to integrate remote monitoring into
your system.
Section 4 · Operation
NOTE
With the optional accessories (see section 5), you can also
implement wireless data transmission over long distances
between the inverter and your PC.
NOTE
The KACO-viso visualisation software can be downloaded
from
http://www.kaco-newenergy.de
NOTE
Calculating effi ciency by measuring the current and voltage
values leads to unusable results due to the tolerances of
the measuring devices. The sole purpose of these values
is to monitor the basic operation of the system.
Operating Instructions Powador 1501xi/2501xi*/3501xi/4501xi/5001xi** Page 11
Section 4 · Operation
Figure 4.7: Excerpt from the protocol of a transmission via the RS232 interface
Column Meaning Column Meaning
1 Date 6 Generator power in W
DC
2 Time of day 7 Line voltage in V
AC
3 Operating mode 8 Line current, grid feed current in A
AC
4 Generator voltage in V
DC
9 Power fed into the grid in W
AC
5 Generator current in A
DC
10 Temperature of the unit in °C
Tab le 4.2: Explanation of the individual columns
4.9 Display
Inverters in the Powador xi series are equipped with a back-lit
LCD (see fi gure 4.1) which displays all measured values and
data.
In normal mode, the backlighting is switched off. As soon as
you press one of the keys, the backlighting is activated. If 1
minute elapses without a key being pressed, it switches off
once again.
In normal operation, if no key has been pressed for a longer
period of time, the power that is currently being fed into the
grid is shown on the display.
You can use the control keys (see section 4.3) to show the
values and data that are outlined in fi gure 4.4 on the display.
Spalte 1 2 3 4 5 6 7 8 9 10
04.06.2005 16:55:30 5 363.8 0.37 134 226.1 0.53 103 23
04.06.2005 16:55:40 5 366.0 0.39 142 226.1 0.53 112 23
04.06.2005 16:55:50 5 359.5 0.41 147 226.1 0.53 116 23
04.06.2005 16:56:00 5 369.8 0.42 155 226.1 0.58 118 23
04.06.2005 16:56:10 5 377.0 0.43 162 226.1 0.63 131 23
04.06.2005 16:56:20 5 373.6 0.45 168 226.1 0.63 133 23
04.06.2005 16:56:30 5 364.0 0.48 174 226.1 0.68 146 23
04.06.2005 16:56:40 5 364.3 0.49 178 226.1 0.68 146 23
Column
IMPORTANT
Due to measuring tolerances, the measured values may
not always correspond to the actual values. The inverter’s
measuring elements have been selected to ensure maximum solar yields.
Due to these tolerances, the daily yields displayed on the
inverter may deviate from the values on your supply grid
operator’s grid feed meter by up to 15 %.
Page 12 Operating Instructions Powador 1501xi/2501xi*/3501xi/4501xi/5001xi**
Status Explanation Comment
0 Inverter has just switched on Only for a brief period after being fi rst switched on in the morning.
1 Waiting to start Grid parameters and generator voltage are checked.
2 Waiting to switch off Insuffi cient generator voltage and generator power. The status before
it switches over to night shutdown mode.
5 Grid feed mode The inverter is feeding into the grid.
8 Self test The line relay and the shutdown of the power electronics are tested
prior to the commencement of grid feed mode.
10 Overtemperature shutdown If the inverter overheats (heat sink temperature > 85 °C) due to the
ambient temperature being too high and inadequate air circulation,
the inverter switches off.
12 Overload shutdown Protective function of the inverter when too much generator power
is supplied.
13 Protection shutdown Protective function of the inverter for short-lived line failures.
14 Line failure Possible line failure causes:
• Line overvoltage
• Line undervoltage
• Line impedance jump
15 Transition to night shutdown Inverter switches from stand-by to night shutdown mode.
16 Operation stop 3 faults in self test – resumes after a complete shutdown.
24 DSP error Possible causes of a fault in the control system:
• Internal computing error (e.g. division by 0)
• DC Link overvoltage
• Control card overtemperature
• Solar generator overvoltage
28 Hardware error The self test was unsuccessful. There is a fault.
30 Measurement error The current and voltage measurements in the inverter are not plau-
sible.
33 DC grid feeding error The DC feed into the grid was too high.
34 Communication error The DC feed into the grid was too high.
Tab le 4.3: Explanation of the operating states
Operating states
Section 4 · Operation
Operating Instructions Powador 1501xi/2501xi*/3501xi/4501xi/5001xi** Page 13
Additional accessories can be found in our general
catalogue.
Section 5 · Accessories
5 Accessories
KACO new energy GmbH offers its customers a comprehensive
range of helpful accessories. The array of products includes
monitoring, display, visualisation and data transmission equipment of the highest quality.
Powador-proLOG
Are you looking for professional installation monitoring and
data logging equipment? Powador-proLOG is the high-end
solution for your PV installation. Error messages by SMS (text
message), fax or e-mail, remote access to the installation, the
representation of the PV installation on the Internet and much
more are no problem whatsoever for the Powador-proLOG. Up
to 32 inverters can be connected to the Powador-proLOG via
the RS485 interface.
Figure 5.1: Powador-proLOG
Powador-go
If you simply wi sh to kn ow w hethe r your i nst all ation is workin g
properly, the Powador-go is exactly what you need. If your PV
installation or modules are no longer producing power, the
Powador-go set reports this after 24 hours by means of an
audible warning signal. The whole process works independent of the inverter. You can simply sit back and relax in the
knowledge that your installation will let you know if there is
a problem.
Figure 5.2: Powador-go
Page 14 Operating Instructions Powador 1501xi/2501xi*/3501xi/4501xi/5001xi**
Section 6 · Troubleshooting
6 Troubleshooting
In line with our continuously expanding quality assurance system, we endeavour to eliminate all errors and faults. You have purchased
a product which left our factory in proper condition. Each individual unit has successfully passed an endurance test as well as extensive
tests for the purpose of assessing the operating behaviour and the protective equipment.
If your photovoltaic installation does not function properly despite these measures, we suggest the following troubleshooting procedures:
The fi rst step is to check that the solar generator and grid connections are properly connected to the Powador. In doing so, observe all the
safety instructions specifi ed in this manual. Monitor the inverter closely and, where applicable, make a note of the displays and LEDs.
The following faults may occur and should be remedied as described.
Fault Cause of fault
Troubleshooting/Explanation
Inverter displays an
impossible daily peak
value.
Faults in the line voltage. Inverter continues to operate normally, without losses to the
yield, even when an erroneous daily peak value is displayed.
The value is reset overnight. To immediately reset the value,
the inverter must be switched off and switched on again by
disconnecting it from the grid.
Daily energy yields do
not correspond with the
yields on the grid operator’s grid feed meter.
Tolerances of the measuring elements in the
inverter.
A measurement error occurs due to the measuring elements’
tolerances. The daily energy yield may deviate from the yield on
the grid feed meter by up to 15 %.
The line fuse trips. The line fuse capacity is
–
too low.
Damage to the inverter’s
–
hardware.
In cases of high insolation, the inverter can - depending on the
solar generator - exceed its rated current for a short period. For
this reason, the capacity of the inverter’s pre-fuse should be
somewhat higher than the maximum grid feed current.
The line fuse immediately trips when the inverter switches to
grid feed mode (after the start-up period is complete). In such
a case, there is damage to the inverter’s hardware. Should this
be the case, the unit must be repaired by KACO new energy
GmbH.
The display is blank. The unit is in night
–
shutdown mode.
There is no line voltage.
–
The solar generator volt- –
age is lower than 125 V.
The inverter switches off overnight. If the display does not light
up during the daytime, check the grid feed meter to see if power
is still being supplied to the grid. If power is being supplied to the
grid, the display module is faulty. The inverter must be repaired
by KACO new energy GmbH. If power is not being supplied to
the grid, check to see if there is any line voltage and if the solar
generator voltage is greater than 125 V. If both are the case
and the display is still blank, the unit must be repaired by KACO
new energy GmbH.
The inverter does not
start up, LED (1) is off.
The unit is in night
–
shutdown mode.
There is no line voltage.
–
The solar generator volt- –
age is lower than 125 V.
The inverter switches off overnight. The display and all three
LEDs are off. If the inverter does not start up during the daytime,
check to see if there is any line voltage and if the solar generator voltage is greater than 125 V. If both are the case and the
inverter still does not start up, the unit must be repaired by
KACO new energy GmbH.
The inverter is active
but does not feed into
the grid. Display shows:
Start at 125 V meas.
xxx V
Insuffi cient generator
voltage available. The
measured voltage is lower
than 125 V.
When there is insuffi cient solar insolation due to bad weather
conditions (after sunrise, at sunset), the generator voltage or the
generator power that comes from the roof may be too low to
be able to supply power to the grid. If the inverter has switched
off because the power is too low, it waits a country-specifi c time
period (see Installation Instructions, section 4, Technical Data)
before attempting to feed in once again.
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