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Read the full manual before using this product 

According to the switch position, the inverter will have one of the following modes: 

Unit off

 (middle position): The inverter is off, there is no AC output. The battery charger is off.

Power  saver  off

:  the  inverter  is  producing  full  power.  The  exact  operating  mode  depends  on

whether  AC  input  power  is  connected  to  the  inverter  or  not.  If  the  AC  input  is  connected,  the 
inverter will be operating in the bypass mode and the battery charger will be working.  

Power  saver  auto

:  the  inverter  is  in  the  sleep  mode  and  will  only  provide  power  if  a  load  is

connected  to  the  AC  output.  If  there  is  no  load  connected,  the  inverter  will  continue 

‘sleeping’  to 

save  energy.  Please  note  that  the  load  must  exceed  25W  to  turn  on  the  inverter  output 

–  small 

loads such as mobile phone chargers, LED lights etc will not be enough to exit the sleep mode. 

If you want to change the active 

Power saver auto” mode to “Power saver off” and 

vice  versa,  turn  the 

switch  to  the  middle  position  “Unit  off”  first,  wait  until  the 

inverter switches off, and then switch it into the other mode.  

The detailed description of these operating modes is provided below. 

Power  saver  off,  AC  input  is  connected. 

If 

the AC input is connected, the inverter will be 
working  in  the 

AC  mode  01 

(in  the  top  left 

corner of the inverter LCD display there will be 
a sign “

>> 01

”) as shown on the picture. In the 

centre  of  the  screen  the  input  (I/P)  sign  will 
have  arrows  pointing  from  it  to  Bypass  and 
battery  icons.  The  display  will  show  AC  input 
voltage at the bottom, as well as AC output. 

Power saver off, AC input is disconnected. 

If  the  AC  input  is  disconnected,  the  inverter 
will be working in the 

Battery (inverter) mode 

02 

(in  the  top  left  corner  of  the  inverter  LCD 

display there will be a sign “

>> 02

”) as shown 

on  the  picture.  In  the  centre  of  the  screen 
there will be an arrow pointing from the battery 
to  the  inverter  and  to  output  (O/P).  AC  input 
voltage will show 000V. 

Power  saver  auto. 

The  inverter  will  be 

working  in  the 

Power  saver

 

mode  03 

(in  the 

top  left  corner  of  the  inverter  LCD  display 
there will be a sign “

>>  03

”) as shown on the 

picture.  The  inverter  will  be  ‘sleeping’  in 
standby  until  a  load  (>25W)  is  connected  to 
the  inverter  output.  The  signs “OUTPUT”  and 
“O/P” will be flashing on the screen. 

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Summary of Contents for LK Series

Page 1: ... manual before using this product Low Frequency Inverter User Manual For LK LW series Power Star inverters only models LK2000 LK2000 24 LK3000 LK3000 24 LK3000 48 LK6000 24 LK6000 48 220 240V 50 60Hz Pure Sine Wave ...

Page 2: ...er source Do not cover the inverter Always place it in a well ventilated environment and allow space around the inverter for airflow If you operate the inverter in a vehicle boat or any other mobile application secure the inverter to prevent it from any movement while the vehicle is in motion Make sure all the connections are tight Do not place the inverter under direct sunlight or in a high tempe...

Page 3: ...mains AC power input is connected and active it will be connected to the mains AC output through the bypass transfer switch powering the appliances directly If suddenly there is a power cut or mains AC input is not available for any other reason the inverter will automatically connect the batteries and start running the mains AC output from the batteries without any interruption to the appliances ...

Page 4: ...n on a horizontal or vertical surface The overall wiring diagram for the inverter is provided below Wiring diagram for LK LW Series Power Star inverters Ensure that the inverter is switched off during the installation It is recommended that you always connect the inverter to the battery bank first as the battery power ultimately starts the inverter If the inverter is connected to the AC input only...

Page 5: ...25A from the battery So the fuse switch or a circuit breaker should be rated at 125A This assumes that the inverter is not intended for loads which will have a peak power in excess of 3000W in such case the amp rating of the fuse switch or a circuit breaker should be higher The fuse or a circuit breaker should be fitted as close to the battery terminal as possible ideally within 15cm from it This ...

Page 6: ...om vibration The inverter also has a 30A circuit breaker installed on the AC input side If you are planning to use the inverter with reduced through power including bypass and battery charging install a smaller fuse on the AC input of the inverter e g 3A 10A or 13A When connecting the inverter earth please note that the earth wires for AC input and AC output are connected inside and both are conne...

Page 7: ...t power from a generator connected to the mains AC input of the inverter Note for best performance it is recommended that the generator nominal power rating is twice as high as the nominal power of the inverter Lower power rating of the generator might cause a problem when the inverter works with high loads To proceed with the installation of the generator keep the inverter off and start the gener...

Page 8: ...then switch it into the other mode The detailed description of these operating modes is provided below Power saver off AC input is connected If the AC input is connected the inverter will be working in the AC mode 01 in the top left corner of the inverter LCD display there will be a sign 01 as shown on the picture In the centre of the screen the input I P sign will have arrows pointing from it to ...

Page 9: ...or 240V Displays the output frequency which can be set to 50Hz or 60Hz Displays and alternates every 3 sec between the current battery capacity as a and battery voltage Displays and alternates every 3 sec between AC input frequency and voltage Displays and alternates every 3 sec between AC output frequency and voltage The inverter is working in the bypass mode If the display shows HIGH the AC inpu...

Page 10: ...ting is to provide the right AC output voltage for your electronic appliances The default voltage range for appliances in the UK is 230V 240V AC other countries might have different requirements After selecting the required AC output voltage press to move to the next parameter Setting 2 Output AC frequency AF 50 60 This setting is for the output frequency Choose from AF auto detection of frequency...

Page 11: ...loads are not powered by the battery but only by the mains input In this mode the inverter works like UPS uninterrupted power supply if the mains power suddenly switches off the inverter will continue running your appliances from the battery without any interruption In the DC priority mode even if the mains input is connected to the inverter your appliances are still powered by the batteries The b...

Page 12: ...5 253Vac 160 248Vac 220 230V 135 263Vac 145 253Vac 160 253Vac 165 248Vac 240V 135 273Vac 145 263Vac 160 263Vac 165 258Vac Setting 6 Battery type b 1 b 2 b 3 b 4 b 5 b 6 b 7 b 8 0 The inverter has several charging programmes for different battery types with different charging voltages Choose the correct battery type for accurate battery charging If needed consult your battery manual or battery manu...

Page 13: ... fault alarm light on Inverter is too hot ensure that the inverter is well ventilated and not in direct sunlight Check for any dust or debris that may have blocked the fans Switch the inverter off and wait for 30 minutes If the fan still doesn t work and the fault happens again the fan will need replacing 02 Overload alarm light on Power drawn by the load is too high for the inverter Reduce the nu...

Page 14: ...ure sine wave Output continuous power Watts 2000W 3000W 6000W Power factor 0 9 1 0 Nominal output voltage rms 120 230VAC Output voltage regulation 10 RMS Output frequency 50Hz 0 3Hz or 60Hz 0 3Hz Nominal efficiency 85 Surge ratings 300 nominal power 6000W 9000W 18000W Short circuit protection yes fault after 10 secs Power saver threshold 25W Inverter specification input Nominal Input voltage 12V 2...

Page 15: ... 5 11 10 5 100 50 0 Time Charging Voltage Charging Current 1 3 2 4 2 Absorption stage at 14 4V to 14 8V 1 Constant current stage 3 Constant voltage stage 4 Low voltage step to stage 1 1 Boost Constant Current CC Stage if AC input is applied then the charger will run at full operating charging current in constant current CC mode until the charger reaches the boost voltage The software timer will me...

Page 16: ... the inverter off Then connect the AC power on to the inverter Because this is such a dangerous feature there is a 4 hour time out period built into the programme However on a very large battery bank this may not be enough and the unit may need to be switched off and on again to do another cycle Don t forget to change the battery type back to normal at the end of the cycle and turn the inverter Of...

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