PowerTek ECO SW Series User manual

ECO SW Series
User Manual
Ver. 3.0
ON (3s)
On blink Off
UP
DOW N
SET(5s)
High voltage. Avoid inj ury or dead by electric al sho cks.
Before perfor ming a ny electric al wor k turn OFF AC a nd
DC power supplie s. Contact factory or loc al supplier fo r
technical se rvice and s upport.
ECOSWSeries
ECOSWSeries
Read User Manual
before installing this unit.
www.powertekinverters.com
For more info please visit:
WARNING:
Pure Sine Wave INVERTER / CHARGER
WARNING
INV/CHR
AC
OFF (5s)
USE / TO SCROLLUP DOWN
DISPLAY SCREENS PROGRAMMING PAGES
USE / TO SCROLLUP DOWN
INV MODE
BAT MODE
BAT PRIORITY MODE
FREQUENCY
LOAD (% / WATTS)
BAT (VOLT / % CHARGE)
INV OUTPUT POWER
PROGRAMMING MODE
Press for 5s to enterSET
PAGES
P1 to P9 / PA to PN / F3 to F9
See User Manual
ON PAGE P0
Press for 3s to save and exitSET
Push 2 times to exit onlySET
CAUTION:
WARNING
INV/CH R
AC
ON LIN E OFF LIN E
INV O N CH ARGIN G CH ARG ED
FAULT / LOW B AT / NOR M AL
OVL 115% OVL 105%
LEDs
ECO SW Series 1.5 KW –6 KW

2
CONTENTS
1. Product Introduction………………………………………………………………………………..1
1.1 Working Principle……………………………………………………………………………………..1
1.2 Working Modes………………………………………………………………………………………..2
2. Inspection…………………………………………………………………………………………………3
3. Installation………………………………………………………………………………………………..3
4. Outward appearance and wiring……………………………………………………………….5
4.1 Side and Front Panel………………………………………………………………………………….5
4.2 Battery Wiring……………………………………………………………………………………………6
5. Leds, Buttons and Display Description……………………………………………………….7
6. Parameter Settings…………………………………………………………………. ………………10
7. Product Care and Maintenance………………………………………………………………….17
8. Fault Codes ……………………………..………………………………………………………………18
8.1 Fault Codes Troubleshooting ............………………………………………………………..18
8.2 Buzzer alerts ……………………………………………………………………………………………20
9. External Communication………………………………………………………………………....20
10. WIFI Plug…………………………………………………………………………………………………..21
11. Appendix 1 Technical Specs……………………………………………………………………….23
12. General Installation Diagram…………………………………………………………………….24

1
1. Product introduction:
The inverter is suitable for important equipment that requires backup power when the
utility is unstable or absent. This product adopts high-precision DSP control chip,
precise detection circuits, advanced control technology, modular design convenient for
installation and maintenance and intelligent temperature-regulating fan for efficient heat
dissipation to extend system’s life. The output is stable, clean and pure sine wave output.
The fast transfer time Line to Inverter or Inv to Line makes the inverter suitable for
backing up Computer or sensitive electronics devices
There are four working modes to choose: mains priority , battery priority, energy saving
and unattended mode. It has short circuit protection, overvoltage and undervoltage
protection, overload protection，overheat protection, short circuit protection, automatic
restart, wide input frequency range and wide input voltage range, can be used for diesel
/ gasoline generator input or solar applications
1.1. Introduction to working principle
AC INPUT
INVERTER
BATTERY
LOAD
AC
AC
AC/DC
DC/AC
Transfer
Relay
AC110-120V:1500W-6000W
with / without AVR option

2
1.2. Introduction to working modes
01 Mains priority
When the mains power is available, the Inverter supplies power to the load and
charges the Battery. When the mains power is out of range, the battery will supply
power to the load. You can set the mains power to charge the battery or not (Parameter
PC set).
If an external charger is connected, AC charger off, the inverter will restart when the
battery voltage reaches the Battery restoring setting (PN)
02 Energy saving mode
When the inverter is in battery mode and the output load is less than 1%-10%
(set by the P7 ,10% default) of the inverter capacity, the AC output on DC mode will
be turned off, The inverter will restarts every 15 seconds, and checks whether the load
is greater than the % of the set power. When the connected load is greater than the
setting, the inverter resumes the normal output. This function is to reduce the battery
discharge when the main loads are off, to extend the battery backup time and to avoid
unnecessary battery discharging.
03 Battery priority mode
The battery supply power to the load. When the battery voltage is lower than
the set battery voltage (voltage set by PA), the mains supply power to the load. When
the battery voltage is restored , the battery will supply power to the load again.
(charger is on or not depending on the PC setting）.
04 Unattended mode
Allows the MCU to stay on longer waiting for the AC to come back in order to
reduce the users intervention.
This mode combined with the activation of multiples Overloads setting (F9=ON)
make this mode suitable for applications where the user is far from the inverter.
The Inverter automatically turns on when is connected to the mains or if the battery
voltage is normal (not include inverter first time use) . But when the battery voltage is
lower than the battery voltage set by F4 (F4: set the system’s minimum battery
voltage), the internal power will be turned off and the Inverter will turn on only when
the mains power comes back, or the inverter is turned on by hand. ( charger is on or

3
not depending on the PC setting）.
05 Solar priority mode (For inverters equipped with internal MPPT Charger)
This mode is similar to Mode 03 (Battery priority Mode) but manages the
internal MPPT Charger and the Inverter .When the battery voltage is normal, the
inverter automatically turns on and the battery supply power to the load. When the
battery has low voltage (PL setting), the inverter shuts down automatically. The
second time that the battery discharge to battery low voltage shutdown (PL setting),
the inverter enters standby in and waits for the mains power or solar Charger to
recharge the battery .When the battery voltage is restored (PN setting), the inverter
will automatically turn on. But when the battery voltage is lower than the voltage set
by F4, inverter will be turned off and will be turned ON only when the mains power
returns or by hand.
In this mode, the solar charger and the AC charger are combined to supply the
charging current to the battery. The main charger will be the Solar charger and the AC
charger will supply the charging amps to reach the Max Charging amps setting (P5)
2. - Opening package / Inspection:
Before opening, check if the package is not damaged. After opening, please check
the inverter and its accessories.
Verify that the inverter has not sign of damage.
Notes:
Read the product manual carefully.
If you find damage or missing parts, please do not return the device and contact
your dealer.
Please keep the packing box and materials in case of a next shipping is needed.
This series of products is very heavy, please handle it safely.

4
3. Installation recommendations:
WARNING : Must be performed by a Certified Electrician
1. The inverter must have a minimum clearance of 30 cm away from any wall as
shown in the next figure. Pick a place the Inverter on a well ventilated, free of
humidity, flammables or corrosives gases.
2. Don’t place the inverter in a corner, or on its side, or upside down, it must be away
from heat sources, avoid direct sunlight, ensure that the front panel, rear panel, and
fan inlets have good clearances.
3. The environment temperature should be between 0 ° C and 40 ° C.
4. If the device is used in a low temperature environment, water may condense.
Operate only if the device is dry, otherwise there will be risk of electric shock
5. Please install the inverter near the main breaker box and where it is easy to unplug
or disconnect it from the main power.
6. The external battery should not be exposed to sun or water. It is preferable to install
it in a ventilated battery cabinet.
7. The distance between the inverter and its battery should be the shortest as possible
8. Do not place objects on the inverter that may obstruct its ventilation.
Notes:
When the load is connected, before wiring it to the inverter, make sure that
they are off and then turn them on one by one.
The inverter is must be connected to an electric box with over current
protection. The inverter must be safely grounded.

5
If connected to an outlet, the power outlet should be safely grounded.
No matter if the inverter has input voltage or not, the inverter may have
output voltage, turning off the inverter does not ensure that the internal parts
don’t have power.
About inductive loads: when inductive load such a motor or AC compressor
starts, it demands up to three times its normal consumption. Take this into
consideration when dimensioning the inverter capacity.

6
4. Outward appearance and wiring
4.1 Sides and front panel
1.5KW-3.5KW Series
ON (3s)
On blink Off
UP
DOW N
SET(5s)
High voltage. Avoid injur y or de ad by e lectrical shocks.
Before p erform ing any e lectrical work turn OFF AC and
DC power supplies .Co ntact factory or local supp lier for
technical se rvice and supp ort.
ECOSWSeries
ECOSWSeries
Read User Manual
before installing this unit.
www.powertekinverters.com
For more info please visit:
WARNING:
Pure Sine Wave INVERTER / CHARGER
WARNING
INV/CHR
AC
OFF (5s)
USE / TO SCROLLUP DOWN
DISPLAY SCREENS PROGRAMMING PAGES
USE / TO SCROLLUP DOWN
INV MODE
BAT MODE
BAT PRIORITY MODE
FREQUENCY
LOAD (% / WATTS)
BAT (VOLT / % CHARGE)
INV OUTPUT POWER
PROGRAMMING MODE
Press for 5s to enterSET
PAGES
P1 to P9 / PA to PN / F3 to F9
See User Manual
ON PAGE P0
Press for 3s to save and exitSET
Push 2 times to exit onlySET
CAUTION:
WARNING
INV/CHR
AC
ON LIN E OFF LINE
INV ON CH ARGIN G CH ARGED
FAULT / LO W BAT / NO RM AL
OVL 115% OVL 105%
LEDs
Battery negative
Battery positive
External
Remote port
(optional)
RS232
communication
(optional)
Fan
AC input fuse
AC output socket
AC
input
AC input terminal
AC output
Solar input
Neutral -Live -Ground/ Neutral -Live -Ground

7
4.2 Battery Wiring
1. Battery wiring example:
1.1. 12V connection diagram:
1.2. 24V connection diagram:
WARNING. Use the correct wires gauges according to the amount of Amps withdraw from the
batteries and circulating through the wires.

8
5. Leds indicators, Buttons and Display
1. Indicators and Push Buttons:
Green light :
On when the mains is present and the inverter operating
Yellow light:
Inverter working in battery mode indicator and mains charging indicator. When
the inverter is working in Battery mode the light is solid ON, when the charger is
charging the batteries this light flashes and when the charge is completed the light
turns OFF.
Red light:
When the overload is more than 105% the light flashes, also when a Low
Battery condition is detected. If the overload is more than 110% the light is ON,
also when the inverter fails.

9
Push Buttons:
ON / OFF Button
Turns the inverter ON : hold it for 5 seconds (buzzer will sound).
Press again and hold 5 it for 5seconds to turn the inverter OFF
UP /DOWN Buttons
When the inverter is operating, press UP or DOWN to check parameters on the
display:
Inverter mode: Output Voltage Mains mode: battery capacity
Reading this icon flashes when charging and stops
when the charge is complete
Frequency display
flash
Battery priority mode:
mains status (mains
icon will flash)

10
Load % display Load power display
Overload display ( when icon flashes) Battery % display
Battery voltage display Inverter total output power display
Solar input with mains Solar input without mains
flash

11
Solar input voltage (Volts) Solar input current (Amps)
Setting Buttons: SET, UP/DOWN, ON-OFF
Allows to enter in Programing or parameter setting mode
6. Programming Mode (PARAMETER SETTINGS):
1. When the inverter is working normally, press the SETbutton for 5S to enter to the
setting menu (P0). LCD shows the working mode icon flashing. Press the UP button
or the DOWN button to scroll the menu options (P1 to F9). When on the right menu
option, press the setting button (SET) for 1S to display the setting parameters,(At this
time, the working mode icon is not flashing, and the parameter icon is flashing.) Press
the UP button or the DOWN button to select the parameter to set, press the SET
button for 1S to enter the new parameter and exit from the parameter selection.(At
this time, the working mode icon flashes, and the parameter icon does not flash. Go
back to P0 press the SETbutton twice to save the settings and exit the setting menu.
Parameter
setting
Menu options
P0:Set work mode menu:
Press the SET button 3S to enter the setting menu,
the menu selection icon is flashing. Press UP or
DOWN to scroll setting pages P1 to F9 If need
save and exit, go back to P0 and press the SET
button twice.

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P1: work mode setting:
01: Mains priority mode
02: Energy saving mode
03: Battery priority mode
04:Unnatended mode
05: Solar mode (option Internal
MPPT Charger)
P2: Battery type and charging voltage setting:
SLD: sealed lead-acid battery, FLD: flooded lead
battery, GEL: gel battery, LI: lithium battery, USE:
user mode (default). If user mode is selected, adjust
battery voltage in P3 and P4 menus. If you do not
select the USE (user mode), the P3 and P4 menus
will not show.
P4: Battery voltage floating charge setting:
12.9 ～13.8 (single) can be set
P3: Battery voltage uniform charge setting:
Max voltage when charging before going to
Float
13.6V ～15.5V (single)

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P5: Maximum mains charging current setting:
1500W (12VDC):45A
2500W and 3500W (24VDC)：50A
3500W (24VDC): 50A
P6: Buzzer sound setting:
ON: Turn on the buzzer, OFF: Turn off the buzzer for:
DC Mode, overvoltage, under voltage, overload, over
temperature conditions except faults conditions)
P7: Energy saving mode AC output setting:
(10% default), can be adjusted up and down from
1.0-10%
P8: Inverter output voltage setting:
120V default, (110V, 115V, 120V, 130V)
P9: AC Output frequency setting:
60Hz default, (50Hz, 60Hz)

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The relationship between solar charging and mains charging:
Solar charging
current
Mains charging current (* maximum set charging
current)
40A
0%
30A
20%
20A
40%
10A
60%
5A
80%
0
100%
PA: Lower voltage setting on Battery Priority
mode:
10.5V default, (single section: 10.5V, 10.6V,
10.7V, 10.8V, 10.9V, 11.0V, 11.1V, 11.2V, 11.3V,
11.5V)
PB: Higher voltage setting on Battery Priority mode
on battery priority mode, the battery voltage is
restored and the inverter switches from city power
to Inverting mod. 13.2V default, (single battery:
13.2V, 13.3V, 13.4V, 13.5V, 13.7V, 13.9V, 14.1V,
14.4V)
PC:, mains charges or not:
If ON AC charge, if OFF AC does not charge, AUT
the total current is given by the internal MPPT
Charger plus the AC charger when working on solar
priority mode or mains priority mode, the mains will
charge when the solar charging current is small. The
specific charging method is as follows:

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Pd:AC input lowest voltage setting:
Default 80VAC, (70V, 75V, 80V, 85V, 90V)
PE: AC input highest voltage setting:
Default 135V, (130V, 132.5V, 135V, 137.5V,
140V, 142.5V, 145V)
PF: AC input minimum frequency setting:
Default 45Hz, (40Hz, 41Hz, 42Hz, 43Hz,
44Hz, 45Hz
PH: AC input maximum frequency setting:
Default 63Hz, (63Hz, 64Hz, 65Hz)
PL: Battery low voltage shutdown setting:
10.0V default , (Single: 9.5V, 9.6V, 9.7V, 9.8V, 9.9V, 10.0V,
10.1V, 10.2V, 10.3V, 10.4V, 10.5V, 10.6V, 10.7V, 10.8V, 10.9V
can be set)

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PN: battery voltage to restart the inverter on DC mode
13.8V default, (Single: 12.6V, 12.8V, 13.0V, 13.2V, 13.4V,
13.6V, 13.8V, 14.0V, 14.2V, 14.4V, can be set)
F3: Generator mode setting:
Default OFF (ON work with Gen. \ OFF
doesn’t work with Gen. )
F4: Unattended mode battery lowest voltage to power
off power the inverter’s MCU.
Default single section 8.0V (8.0V, 8.2V, 8.5V, 8.7V,
8.9V, 9.0V, 9.2V, 9.5V can be set)
F5: Fan failure detection settings:
Default single block OFF (ON, OFF)
F9: Auto restart from Overload condition: ON
or OFF. The default is OFF.
Allows the inverter to restart automatically
after an Overload condition was detected.
The process will repeat 3 times then the
Inverter goes OFF.

17
7.Product care and maintenance
7.1. This inverters Series is low maintenance. The standard battery type is
valve-regulated lead-acid battery. When the inverter is connected to the mains,
whether it is on or off, it may keep charging the battery depending on the working
mode selected and provides overcharge and over discharge protection.
7.2. If the inverter is not used for a long time, the batteries will need to be charged
every four to six months. Charge the battery for 4-6 hours before use.
7.3. Normally , the battery life is three to five years. If there is a problem with the
battery, it must be replaced early. Batteries must be handled by professionals.
7.4. It is not recommended to replace the battery individually, replace them all. When
replacing you should follow the safety instructions.
7.5. In high temperature areas, the battery auto discharge in about two months and
the charging time should be not be less than 10 hours.
Notes:
*Before replacing the battery, you must remove all of the power supply connected to
the device: mains, battery, solar modules, etc.
*Don’t wear metal objects such as rings and watches.
*Do not put tools or other metal objects on the battery.
* It is normal for a small spark when connecting the battery
* Do not reverse the battery positive and negative terminals.
* Pay attention to the batteries polarity when assembling the battery bank .

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8. Fault codes
This icon will flash when there is a fault.
8.1. Fault codes and troubleshooting
Cause of
fault
Buzzer or indicator
Fault cause
Solution
E01
Battery low voltage
Check the battery is
broken or not
E02
1 long 2 short (B-BB )
beeps, red light is off
Battery overvoltage
Check the battery is
broken or not
E03
Buzzer rapid beep and the
red-light lighting
Battery low voltage
Check the battery is
broken or not
E04
Intermittent beeping and
the red light off
Transformer
secondary line
reverse connection
Restart or contact the
supplier
E05
Intermittent beeping and
the red light on
Inverter startup
failure
Check if output is
short circuited or
overloaded
Fault code display
it will flash when
there is a fault.