Compact C1312 Operating manual

Studer Solartechnik Sinewave Inverter, Battery Charger
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Combination Inverters/Chargers
COMPACT C1312
COMPACT C2324
COMPACT C3048
User and Installation Manual
This document has been produced to accompany the
Studer User and Installer Manual.
For any further information regarding installation or using this range of COMPACT inverters/chargers
please contact the engineering dept. at Morven Electronics Ltd.
Tel. [phone]
Fax. [phone]
Email [email protected]

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General Description
The COMPACT is a sine wave inverter with an integral battery charger along with many
additional features. It has been developed to be used as a stand-alone AC source
(independent of a grid-system), or as a continuous / break-free source when attached to an
external AC supply (Grid or generator).
The COMPACT can be split into 3 (or 4 if solar regulator fitted) main components:-
1. The Inverter
The sinewave inverter built into the COMPACT generates a sinusoidal AC voltage with a very
precisely stabilised voltage and frequency. In order to start electric motors it has a short term
surge capability of three times the nominal output power. The inverter is protected against
overload, over temperature and short-circuits.
The inverter also has an adjustable ‘Standby’ mode to provide the smallest energy consumption
possible from the batteries. This feature detects whether a load is connected to the AC OUTPUT
and if not switches the AC OUTPUT to OFF. It briefly switches ON again approximately every
second to check whether the load is below the minimum value set by adjusting the ‘Standby’
knob on the control panel. This load can be adjusted from 1 – 20 watts. The inverter will
automatically switch ON if it detects a load present at the AC OUTLET.
2. The Transfer System
The COMPACT can be connected to an AC source at the AC INPUT connector. (e.g. grid system
or generator). The transfer system monitors this voltage and if it is within pre-set limits
switches OFF the inverter and transfers it to the AC OUT connector. Depending on the power
rating of the AC source and the load on the AC OUT the Transfer System also uses available
power from the AC INPUT to charge the batteries.
3. The Battery Charger
A microprocessor controlled battery charger is built into the COMPACT. This charger employs a
3 – 4 stage charging profile to ensure full charge is returned to the batteries as quickly and
safely as possible. The desired charging current can be adjusted from 0 Amps to full power by
the ‘Charger’ knob on the control panel. Due to a closely regulated Float voltage the batteries
can remain continuously connected.
4. The Solar Charge Regulator (If fitted)
With the built-in solar charge regulator, the COMPACT is a complete solar power centre.
In a solar installation the batteries can be charged from this solar regulator and/or an
external AC source if available at the same time. This power sharing is controlled
automatically.

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IMPORTANT
Please read and understand the:
1.2 Quality and Warranty
1.3 Warranty Disclaimer
1.4 Liability Disclaimer
1.5 Precautions
1.6 Special Precautions
on Pages 4 and 5 of the ‘User and Installer Manual’ booklet accompanying the unit, prior to
proceeding with installation or servicing.
Prior to starting Installation
1. Important:- Ensure that the model of Compact is compatible with the battery voltage
The last two digits in the model number denotes the battery voltage.
(e.g. C3548 should only be connected to a 48Volt battery).
2. Determine whether the batteries are sealed-gel or normal lead-acid batteries.
Set the small slider switch ‘Equalize’ to the OFF position (down) for Sealed-
Gel batteries, or to the ON position (up) for normal lead-acid batteries.
Equalize switch
Slide up for ON

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Installation of the Compact
Stage 1:- Connection to the battery
The Compact is supplied with heavy duty input cables. Firstly connect the Red cable onto the positive
terminal of the battery. On connecting the Black cable to the negative terminal a spark will be produced
as the input reservoir capacitors are charged. The Red LED 13* on the front of the unit marked ‘OFF’
should be illuminated. If not, press the ‘ON/OFF’ button 19* positioned below to illuminate it.
On connecting to a battery the Compact needs 1 – 2 minutes to calculate the actual capacity of the
battery. During this time the LEDs 14–17* on the front of the unit indicate the battery condition as
100% charged.
If the LED 12* marked Batt Low/High is illuminated this indicates that the battery voltage is too low.
If the LED 12* marked Batt Low/High is flashing this indicates that the battery voltage is too high.
If the COMPACT is connected with the incorrect battery polarity it is probable that the internal input fuse
will be damaged. Before attempting to replace this fuse, ensure all connections (including the battery
leads) are removed. If after replacing this fuse and correcting the battery polarity the unit still does not
operate, the unit has received further damage and will need to be returned for repair.
Please refer to the ‘Display and Operating Panel’ photograph on page 6
Remote
Control
Input
Transfer
Delay
switch
Auxiliary
Contacts
Temp
control
Input
AC
INPUT AC OUTPUT
Battery
Positive
lead
Battery
Negative
lead

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Stage 2:- Connecting the 230Vac appliance (AC Output)
Caution Ensure that the inverter is OFF prior to connecting this cable.
The 230Vac consumer device (load) must be connected to the screw terminals marked ‘AC OUTPUT’.
For this use a 3-core mains cable with a minimum cross sectional area of 2.5mm2.
Connections marked as follows:- ‘N’ - Neutral (blue)
‘PE’-Earth(green/yellow)
‘L’-Live(brown)
Stage 3:- Connecting the 230Vac Input Supply (AC Input)
Caution Ensure that the AC source is disconnected prior to connecting this cable.
The 230Vac supply from a network or generator must be connected to the screw terminals marked ‘AC
INPUT’. For this use a 3-core mains cable with a minimum cross sectional area of 2.5mm2.
Connections marked as follows:- ‘N’ - Neutral (blue)
‘PE’-Earth(green/yellow)
‘L’-Live(brown)
Stage 4 :- Connecting to the Auxiliary Contacts
These three terminals are potential free (volt free) change-over relay switch contacts.
The maximum permitted current and voltage for these contacts is 16A/250Vac. The schematic of these
switch contacts is clearly marked above each of the terminals. This schematic illustrates the relay in the
non-active state. LED 5* on the front of the unit will illuminate if this relay is Active.
The relay can be programmed to switch due to various conditions (Programming mentioned later). It is
factory set to operate during the following conditions:-
1. Over temperature
2.Overload
3. Over-voltage or Under-voltage on the batteries
4. If the COMPACT has been turned OFF manually or with a fault.
The relay can also be manually switched ON/OFF using button 21* on the front of the unit.
* Please refer to the ‘Display and Operating Panel’ photograph on page 6
Stage 5:- Connecting the optional Remote Control (if required)
The remote control (RCC01) is connected by simply pushing the RJ11/8 connector located on the end of
the cable supplied into the socket marked ‘Remote Control’ on the end of the COMPACT. The other end
of the cable plugs into the RJ11/8 connector on the Remote Control.
The remote control is supplied with a 20m cable. This cable can be replaced with a standard RJ11/8 up
to a maximum length of 40metres.
Stage 6:- Connecting the Temperature Sensor (if required)
The temperature sensor (CT-35) is connected by simply pushing the RJ11/6 connector located on the
end of the cable supplied into the socket marked ‘Temp’ on the end of the COMPACT. The sensor must
then be securely fastened to the wall of the battery or close to it. The temperature sensor cable must
not be tied to the battery leads or laid into part of a wiring loom.

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the COMPACT Display and Operating Panel
LED indicators
LED Title LED Illuminated LED Flashing
1 AC IN Volts at AC INPUT within set limits Volts at AC INPUT outside set limits
2 CHARGER The Battery charger is operating Input volts/frequency outside set limits
3 SOLAR CHARGER Solar modules delivering energy (if used)
4 Program Program mode for Aux. contact
5 Contact Active Aux. Contact is activated
6 Contact Manual Aux. Contact manually activated
7 Transfer system is active. Incoming AC is being
sent directly to AC OUT
8 AC OUT Volts present at the AC OUT outlet The Inverter is in Standby-Mode
9 INVERTER Inverter is operating Forced-Inverter Mode
10 Over Temp Temporary shutdown due to Over Temp.
11 Overload Temporary shutdown due to Overload
12 Batt. Low/High Battery Volts are too low Battery Volts are too high
13 OFF Unit OFF. Must be manually restarted Unit OFF. Will restart automatically.
14 Battery Charger in Equalisation cycle
15-18 Charge condition of battery LED15 – Absorption time is running
25 CURRENT
MONITOR In Inverter mode displays the output power in % of Pnom.
In Charger mode displays charge current in Amps. 200% LED indicates power sharing
Push buttons
19 ON/OFF
Turning the COMPACT ON and OFF (Help button for programming)
20 RESET
Switches Alarm Signal OFF after fault (Help button for programming)
21 Aux. Contact
Manual ON/OFF for Aux. Contacts (Help button for programming)
Adjustment Knobs
22 CHARGER
Adjustment for maximum charging current
23 TRANSFER
Adjustment for Transfer Voltage. (Voltage COMPACT switches from Transfer to Inverter mode
24 STANDBY
Adjustment for Standby level. (load where COMPACT switches from Standby to normal operation)
26 INPUT LIMIT
Must be adjusted to the maximum available current of your AC INPUT supply (explained later).
26
22 23 24
25
1
2
3
4
5
6
21
7 8
9
20
10
11
12
13
19
14
15
16
17
18

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OPERATION of the COMPACT
The Inverter
When operating in Inverter Mode LED 9* (Inverter) will illuminate. This indicates that 230Vac is being
delivered to the AC OUTPUT with the power being derived from the batteries. The inverter automatically
switches on if the AC INPUT is out of the preset limits. The power being taken from the inverter by the
AC load (consumer appliance) is displayed as a percentage of the maximum power of the unit on the
Power Monitor (25)*. The inverter has a 3-times full power surge capability for starting large motors
etc.
Standby Mode
When in Inverter Mode the COMPACT continually monitors the load on the AC OUT. If this load falls
below a presettable level, set by the ‘Standby’* knob, the Inverter will switch OFF to avoid taking
power unnecessarily from the batteries. This load can be adjusted between 1 to 20 Watts using the
‘Standby’* knob. The Inverter will then briefly switch on every second to check if the load has
changed. When in ‘Standby’ Mode LED 8* (AC OUT) will flash. Once the load is above the preset level
the inverter will automatically switch to normal operating mode.
To set the Standby mode to the correct level firstly switch off all AC appliances connected to the AC
OUTPUT. Turn the ‘Standby’* knob anti-clockwise until LED 8* is flashing. Connect the smallest load
that will be used, e.g. mobile phone charger, to the AC OUTPUT. Turn the ‘Standby’* knob clockwise
until LED 8* illuminates continuously. If Standby Mode is not required and the inverter is to operate
regardless of the load then turn the ‘Standby’* knob fully anti-clockwise to the OFF position.
Overload
The inverter is designed to operate continuously at its full rated power or for short periods above this
rated power. If the unit is operated for long periods above its maximum rating it will shut down
automatically. At this point the ‘Overload’ LED 11* will illuminate and the ‘OFF’ LED 13* will flash.
After 10 seconds the inverter will switch ON again automatically. If the inverter is overloaded 4 times
within a short period of time then it will no longer switch ON automatically and the ‘ON/OFF’ button
19* will need to be pushed to restart the unit.
Over Temperature
The COMPACT has an internal cooling fan that switches ON when the ambient inside the unit reaches a
certain level. If there is insufficient ventilation around the unit, or if the external ambient temperature
exceeds the maximum level, the COMPACT will shutdown due to over-temperature within the unit when
operated at high power. At this point the ‘Over Temp’ LED 10* will illuminate and the ‘OFF’ LED 13*
will flash. One minute before the unit switches OFF an audible alarm will sound. The unit will restart
automatically after cooling down.
Battery Condition
Deep discharge leads to high reduction of capacity and early ageing of the batteries. When the battery
voltage drops too low (see below) the inverter will switch OFF automatically. At this point the ‘Batt
Low/High’ LED 12 will illuminate and the ‘OFF’ LED 13 will flash. One minute before the inverter
switches OFF an audible alarm will sound. The unit will automatically restart after the battery volts
increase above the minimum switch ON level (see below).
**Switch OFF level 12V unit 11.8V 24V unit 23.6V 48V unit 47.2V
**Switch ON level 12V unit 12.1V 24V unit 24.2V 48V unit 48.4V
* Please refer to the ‘Display and Operating Panel’ photograph on page 6
**
These are the levels pre-programmed into the COMPACT and recommended by most battery
manufacturers. If required these values can be altered. See Programming.

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The Battery Charger
While the battery charger is operating there will still be AC power delivered to the AC OUTPUT.
Cycle of Charge
During the pre-installation set-up of the COMPACT the small slider switch ‘Equalize’ should have been
set to the OFF position for sealed Gel, or to the ON position for normal lead-acid batteries. The unit has
been factory set to accurately fully recharge and maintain both types of batteries. Due to this closely
monitored charging regime, the COMPACT can be left permanently connected to the batteries without
risk of over-charging. These factory settings suit most battery manufacturers’ charging
recommendations however they can be programmed to different values if required. See Programming.
The charger functions are shown in the diagram below.
3 / 4 Stage battery charging algorithm
Equalisation Charging
Warning:- Equalisation mode should never be used with GEL batteries.
When charging Lead-acid batteries the COMPACT unit will automatically introduce an Equalisation
process into its normal 3-stage charging regime during every 25th Charge. This helps mix the electrolyte
within the batteries and clean the lead plates. During this phase the ‘Equalize’ LED 14 is illuminated.
Important:- Charging batteries produce explosive gasses
2.50
2.30
2.10
1.90
A
B
C
D
Volts
Current
Volts
per
Cell
t
Amps
A Charging time
B Equalisation time
C Absorption time
(if used).
D Floating

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Power Sharing
To manage the power available from the AC Input, the COMPACT is equipped with a system called
‘Power Sharing’ or ‘Input Power Distribution’. This system monitors the amount of power available from
the AC INPUT and the amount of power required at the AC OUTPUT. If there is any spare capacity from
the AC INPUT it is used to charge the batteries. It always gives priority to the AC OUTPUT. When ‘Power
Sharing’ is used the red 200% LED* is illuminated to indicate limited charge.
AC Input Limit
The ac input current can be adjusted using the ‘INPUT LIMIT’* knob on the control panel. This
enables the COMPACT to be operated from an AC source that has a limited supply current. (e.g. running
from a small generator or a supply with a 6Amp circuit breaker). Turning this knob anti-clockwise
decreases the current limit. For normal installations this knob should be turned fully clockwise.
Charging Current
The maximum charging current for the battery should be set between 10 – 20% of the battery capacity.
e.g. for a 200Ah battery the charging current should be set between 20 – 40Amps.
The charging current is indicated on the ‘CURRENT MONITOR’* on the front panel. (and on the
Remote Panel if used).
Battery Condition
The built-in microprocessor has a specially developed algorithm to calculate the actual state of charge of
the batteries. The result is indicated on LEDs 15 – 18* on the control panel.
Led 15 - Battery 75% - 100%
Led 16 - Battery 50% - 75%
Led 17 - Battery 25% - 50%
Led 18 - Battery 0% - 25%
The Transfer system
When an AC voltage is at the AC INPUT of the COMPACT, the ‘AC IN’ Led 1* is illuminated. If this
voltage is within the presettable voltage and frequency range, adjustable using the ‘TRANSFER’* knob
described in the next section, this voltage is switched directly to the battery charger and the output ‘AC
OUT’. At this point the ‘TRANSFER’ LED 7* is illuminated. The inverter is switched OFF and the
battery charger is switched ON. The Maximum current of the Transfer switch is 15Amps. This means
that loads of up to 3500Watts can be connected to the AC OUTPUT. When the battery charger is
operating, part of this power is used to charge the battery as described in ‘Power Sharing’ at the top of
this page.
The Transfer system is protected against overload with an automatic/resettable fuse on the side of the
COMPACT.
Setting the Transfer Voltage Threshold
The voltage at which the Transfer system switches ON/OFF the Inverter can be adjusted using the
‘TRANSFER’* knob on the control panel. It is factory set for 200Vac. This means that when the input
voltage at the AC IN terminal reaches 200Vac the Inverter will switch OFF and the AC IN will be
connected to the AC OUT. If the AC falls more than 20 volts below the set voltage (i.e. 180Vac) the
Inverter switches ON and the AC OUT is disconnected from AC IN. This factory setting is the optimum
for most appliances that will be connected to the COMPACT.
* Please refer to the ‘Display and Operating Panel’ photograph on page 6

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Fast UPS-Mode of Transfer
The fast, break-free transfer mode is programmed with the slide switch ‘ Transfer Delay’ located on the
side of the COMPACT. With this switch in the OFF position the Inverter will switch ON at once if the
voltage at the AC INPUT drops below the set value mentioned in the previous section. This switch -over
takes 20mSecs which ensures a break-free change-over for almost all appliances. In most installations
the COMPACT should be operated in this mode.
Delayed Mode of Transfer
In some installations it may be advantageous to have a delay between the voltage at the AC INPUT
falling below the set ‘Transfer Voltage Threshold’ and the Inverter switching ON, for example if the
COMPACT is being operated from a small generator and a vacuum cleaner is switched ON. This will
result in the generator voltage being pulled low for a short period whilst the vacuum cleaner powers up.
It is therefore not necessary to switch the Inverter On during this period. To allow a 5 second delay
between the AC INPUT voltage dropping below the threshold voltage and the Inverter switching ON, the
slide switch ‘Transfer Delay’ should be set to the ON position.
If the AC INPUT voltage falls below 100Vac this delay is overridden and the Inverter switches ON
instantaneously as it interprets this as a supply failure.
The Solar Charger Regulator (optional)
The COMPACT also has an option of an integrated Solar charge regulator for charging the batteries. The
Solar Charge regulator works automatically and is always in operation. As soon as energy is delivered
from the solar modules the ‘SOLAR CHARGE’ LED 3* is illuminated and energy is delivered into the
batteries in the same charging regime as the battery charger. The Solar Regulator will operate in parallel
with the battery charger reducing the amount of energy taken from the AC source.
Ensure the correct voltage of solar modules is used. Never connect any other systems such as a wind
generator to this input.
The Multifunctional Auxiliary Contact
As mentioned in ‘Stage 4’ of the installation, the COMPACT is fitted with three terminals which are
potential free (volt free) change-over relay switch contacts.
The maximum permitted current and voltage for these contacts is 16A/250Vac. The schematic of these
switch contacts is clearly marked above each of the terminals. This schematic illustrates the relay in the
non-active state. LED 5* on the front of the unit will illuminate if this relay is Active.
The relay can be programmed to switch due to various conditions. (Programming mentioned later). It is
factory set to operate during the following conditions:-
1. Over temperature
2.Overload
3. Over-voltage or Under-voltage on the batteries
4. If the COMPACT has been turned OFF manually or with a fault.
The relay can also be manually switched ON/OFF using button 21* on the front of the unit.
* Please refer to the ‘Display and Operating Panel’ photograph on page 6

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PROGRAMMING
Default settings
The COMPACT has been factory set with the following default settings.
Battery Voltage
Low battery voltage 11.6V for 12V system, 23.2V for 24V system, 46.4V for 48V system.
End of charge voltage 14.4V for 12V system, 28.8V for 24V system, 57.6V for 48V system.
Equalisation voltage 15.3V for 12V system, 30.6V for 34V system, 61.2V for 48V system.
Absorption time 2 hours
Auxiliary Contacts
Active during 1. Over temperature
2.Overload
3. Over-voltage or Under-voltage on the batteries
4. If the COMPACT has been turned OFF manually or with a fault.
RESETTING
When the COMPACT is installed the unit will operate to these default settings. These settings suit most
installations and users generally find that they do not need to reprogram these settings. However, in
some situations these values may need to be altered.
At any time the factory default values can be restored by pressing buttons 20, 21 & 22 simultaneously
for a minimum of 2 seconds. Alternatively, disconnecting/reconnecting the battery will restore factory
settings.

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Programming the Battery charging voltages and absorption time
The voltage levels (low voltage, float voltage, end of charge voltage and the equalisation voltage) and
the duration of the absorption stage can all be altered.
Low Voltage
LED 13 Float Charge LED 12 Absorption LED11 Equalisation LED10
Absorption
time
LED10-13
LED 12V 24V 48V 12V 24V 48V 12V 24V 48V 12V 24V 48V
14 12.0 24.0 48.0 13.7 27.4 54.8 15.0 30.0 60.0 15.5 31.0 62.0 4 Hours
15 11.8 23.6 47.2 13.6 27.2 54.4 14.8 29.6 59.2 15.4 30.8 61.6 3 Hours
16 11.6 23.2 46.4 13.5 27.0 54.0 14.6 29.2 58.4 15.3 30.6 61.2 2 Hours
17 11.4 22.8 45.6 13.4 26.8 53.6 14.4 28.8 57.6 15.2 30.4 60.8 1 Hour
18 11.2 22.4 44.8 13.3 26.6 53.2 14.2 28.4 56.8 15.1 30.2 60.4 0-1 Min
* Default Settings
Stage 2 Adjusting the Absorption time
To adjust the absorption time, use the same method and the same table as above. Instead of having
one LED on the right hand side to signify Absorption time, all four LEDs will illuminate.
example: Change the absorption time to 4 hours.
Press buttons 19 and 21 for 2 seconds minimum to enter the programming mode. Press
button 20 until all 4 LEDs on the right hand side are illuminated (LEDs 10-13). Using the
table above LED 14 denotes 4 hours. Press button 19 until LED 14 is illuminated. Do not
touch any buttons for 10 seconds and change will be saved.
The voltage levels and times that have been changed will not activate until the next
charging cycle.
Charging at the incorrect voltage levels can greatly reduce the life of your battery.
21 19
20
LED 10 Equalisation
LED 11 Absorption
LED 12 Float Charge
LED 13 Low Voltage
Stage 1 Setting the Voltage levels:
Push and hold down the ‘Program’ (21) and the
‘Change Status’ (19) buttons simultaneously for a
minimum of 2 seconds.
In the Voltage programming mode the LEDs 10-13
have different functions as show opposite. The fou
r
Red LEDs on the right hand side, if illuminated,
show which voltage level is being altered. Push
b
utton 20 until the correct LED is illuminated. Then
using the table above press button 19 until the
desired voltage is achieved idicated by the LEDs
14-18.
example: Change the Low Voltage level to 11.4V.
Firstly press buttons 19 and 21 together to enter
p
rogramming mode. Press button 20 until the Low
Voltage LED 13 is illuminated. From the table
above we can see that LED17 equals 11.4V. Press
button 19 until LED 17 is illuminated.
To store this result do not press any buttons for 10
seconds and the program will be automatically
saved.
LED functions in voltage
programming mode
14
15
16
17
18

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Programming the Auxiliary Relay Contacts
The Auxiliary Relay Contacts can be programmed to switch due to a wide variety of fault conditions or
normal operating modes. (Any function that has a LED on the control panel can be programmed). One
or more operating conditions can be programmed, the first of which to occur will operate the relay.
Example 1: Activate the auxiliary contacts only when in the Over Temp condition
Press button 21 for a minimum of 2 seconds to enter the Auxiliary Contacts programming mode. The
‘Program’ LED 4 will illuminate. Use button 20 to select the Overload condition. Use button 19 to
illuminate the Overload LED , if it is not already illuminated. Step through the rest of the options using
button 20. If any of the other options show illuminated LEDs, press button 19 to deselect them (switch
off the LED). Once finished wait 10 seconds and the ‘Program’ LED will go off and the new settings will
be stored.
Example 2: Auxiliary Contacts as a generator starter.
When in the programming mode for the Aux. Contacts, the battery condition LEDs 15-18 can be used to
determine when to switch On and Off an external generator. i.e. when LED 18 illuminates the battery
capacity is low and the generator should be started. When LED 15 is illuminated the batteries are almost
fully charged and the generator can be switched off.
Manually operating the Aux. Contacts
The Aux. Contacts can be operated at any time by pressing the ‘Aux. Contacts’ button 21. LED 6
‘Contact Manual’ illuminates and LED 5 ‘Contact active’ illuminates. By pushing button 21 again the
Contact is deactivated. Pushing button 21 a third time takes you back to the automatic mode.
21 19
20
LED 10 Over Temp
LED 11 Overload
LED 12 Batt Low/High
LED 13 Off
LED functions in voltage
programming mode
14
15
16
17
18
Firstly press button 21 for a minimum of 2
seconds to enter the Auxiliary Contacts
programming mode. The ‘Program’ LED 4
will illuminate. Use button 20 to select the
desired condition you wish the Aux. contacts
to be activated by. Use button 19 to select or
deselect that option. An illuminated LED
indicates that condition will activate the
contacts. Using this same method, step
through as many conditions as required to
activate the contacts. After program-
ming wait 10 seconds and the new
settings will be stored. The COMPACT is
u
supplied with the following conditions
activating the Aux. Contacts:
1. Over temperature
2. Overload
3. Battery Over-voltage or Under-voltage
4. If the COMPACT has been turned OFF
manually or with a fault.
4Pro
g
ram

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Disabling some of the functions of the COMPACT
Each of the three functions Charger, Inverter and Transfer can be individually disabled. This is required
for some installations. Press and hold button 20 for more than 2 seconds and you have access to the
different possibilities shown in the following diagram. In this programming mode the 3 LEDs show the
different types of programs: LED 2 ‘Charger,’ LED 7 ‘Transfer, and LED 9 ‘ Inverter’.
To change the program press button 20 until you reach the right function illustrated in the diagram
below. Once finished programming wait 10 seconds and the change will be stored. Once back in the
normal user mode, the disabled functions are indicated by flashing LEDs.
Diagram of the different modes - Indicates LED OFF
- Indicates LED Flashing
- Indicates LED ON
1
2
8
9
AC IN –
CHARGER-
- AC OUT
-INVERTER
1
2
8
9
AC IN –
CHARGER-
- AC OUT
-INVERTER
1
2
8
9
AC IN –
CHARGER-
- AC OUT
-INVERTER
1
2
8
9
AC IN –
CHARGER-
- AC OUT
-INVERTER
All the functions are
enabled.
This is the factory
setting
The Inverter is disabled.
Only the Transfer system
and the Battery charger are
operational
The Battery charger and the
Transfer system are
disabled. The Inverter will
operate continuously even i
f
there is correct AC voltage
at the AC INPUT
The Inverter and the Battery
charger are disabled. Only
the Transfer system is
enabled if the correct
voltage and frequency
appear at the AC INPUT.