STERLING POWER PRODUCTS 3 in 1 COMBINED PURE SINE WAVE INVERTER UPS / BATTERY CHARGER (SOLAR & SHORE) USER MANUAL Sterling Power Products England Tel. 01905 453999 Fax 01905 458836 www.sterling-power.com help@sterling-power.
Content A. General Information------------------------------------------------------- 1 B. Warranty----------------------------------------------------------------------- 2 C. Introduction------------------------------------------------------------------ 4 D. Installation-------------------------------------------------------------------- 8 E. Operation---------------------------------------------------------------------- 11 F. Disabling Functions ------------------------------------------------------ 17 G.
General： “ 3 in 1” It is a powerful pure sine wave inverter, a sophisticated battery charger that features adaptive charge technology and a high-speed AC transfer switch in a single compact enclosure.
-1- A. General Information Operating instructions This manual is a part of the delivery package of every inverter-charger. It serves as Guidelines for safe and efficient operation of the unit. The instructions are only valid for use with the following models and accessories.
-2- B. Warranty During production and assembling, all Sterling Inverter / Chargers go through many testing procedures. Every Sterling has its own serial number, which helps to refer back to its original data in the event of controls or repairs. That is why you should never remove the identification plate showing the serial number and must ensure you return your warranty card as soon as possible. The warranty period for your Sterling is 2 years.
-3Sterling reserve the right with some models to supply an accredited installer with replacement parts, this may allow the unit to become operable much quicker. In this case Sterling are not responsible for any costs of the installer’s time or traveling expenses. Replacement parts are sent at Sterling's discretion. Sterling will in no way be held responsible for any losses incurred due to the malfunctioning or failure of a product.
-4- C. Introduction C.1 Basic schematic This unit is a a sine wave inverter with integrated battery charger and AC Bypass switch with many additional functions. DC BUS PV Array AC BUS Solar Controller Bidirectional Inverter (Inverter / Charger) BATTERY Home / Boat / Motohome AC Load C.1.
-5C.1.3 The Battery charger The built-in battery charger is capable of charging the batteries quickly and completely. A microprocessor controlled, 3 to 4 Step charging process ensures the optimum charging of the batteries. The desired charging current can be set. The battery charger can be used for lead-acid or gel batteries. Thanks to the floating charge ability of this unit, the batteries can remain continuously connected. C.1.
-6C.2.1 Parallel Connection: C.2.
-7- C.2.
-8- D. Installation D.1 Location The location of the Combi must be chosen by the following criteria: Protection from unauthorized handling. Dry dust free room, no condensation, no rodents. Never install directly over the battery and never in a cabinet together with the batteries. Keep ventilation holes free. The ventilation of the Combi is designed in such a way that it will work most efficiently when mounted vertically. In mobile installation it is important to keep vibrations to a minimum. D.
-9D.3 Cabling / wiring When making connections to the unit you must ensure that all connections are carried out in a clean and correct manner and under no circumstances that a cable is connected to a wrong terminal. Connecting the unit must be carried out in the following order. D.3.1 Connection to battery Prepare the batteries for connection. Prepare battery cables, if necessary press on cable tabs/shoes.
-10D.3.4 Connect the Solar modules: SOLAR IN +/Solar modules are connected on these terminals. Under no circumstances should any other energy source i.e. wind generator be connected to these terminals. Depending on the power of the modules, the cable cross section should be 2.5 up to 6mm².
-11- E. Operating E.1 Front Panel Display And Operating Description Sterling Power Products 2 1 3 4 8 11 10 6 5 12 7 9 PB6 PB5 PB7 PB4 PB3 PB2 PB1 E.2 Push buttons Push buttons Name RUN/STOP PB1 FUNC PB2 AUX1 PB3 PB4 PB5 DSPL Description RUN/STOP key k Operation mode select key. Auxiliary contract (aux1, aux2) Manual / Active change. And Function programming key Multi-display select key UP（△ ） △ Increment key. PB6 DOWN （▽ ） ▽ Decrement key. ENTER Data write key.
-12E.3 LED INDICATOR: LED Name AC IN 1 2 3 CHARGER L ED ON 1. Input voltage normal, and position ”transfer Voltage Level” (150VAC~240VAC) 2. Input voltage frequency range in between(45~60Hz) Green : Battery charger is working. LED Blink LED OFF Has input power, but No input power voltage or frequency is not in the allowance range. Green Blink : Battery charger is standby. Orange Blink : Battery charger is disable. SOLAR PANEL Solar module is delivering energy.
-1311 MULTI-DISPLAY LED 9.1 LED 9.1 LED 9.4 LED 9.5 9.2 LED 9.2 LED 9.6 LED 9.3 9.3 9.4 Display 9.5 monitoring 9.6 values or set values of each parameter. In Inverter Mode In Charger Mode Battery Voltage Battery Voltage Output Voltage Input Voltage Output Frequency Charging Phase AC output current Battery charging current Indicator of parameter setting or modify or monitor. Indicator of error message ：Battery under voltage trip. ：Battery over voltage trip. ：AC out overload trip.
System Adjustments To adjust any of the unit’s preset parameters (factory/default settings are highlighted in dark blue in each function box) the unit must be in STOP mode! Select the function you wish to change from the list of light blue boxes below. Select the parameter in the box you wish to change. For example, if you wish to switch the power saver function off, you find that the power saver function is attached to Fn02 (function 2) and that selection 2 means “off”.
-15E.7.1 The Inverter The Inverter section of the unit produces a high quality Sinewave output, the quality of this output is compatible with any appliance, Thanks to the generous dimensioning of the unit , you can operate appliances requiring higher power than the nominal power of the unit for a short time. The unit provide up to 3-times the nominal power to start motors etc. E.7.
-16E.7.5 Battery Condition Deep discharging of batteries leads to high losses in capacity and early aging. That is why the unit will constantly monitor the battery condition. When battery voltage gets too low the Invertek switches OFF. The multi-display will show “ ” or ” ” (Low voltage cut out P-12) the “RUN/STOP” LED RED blinks. When the battery voltage returns to 12.1V resp..24.2V, the inverter switches ON automatically.
-17- F. Disabling Functions (Fn05) Each different function, charger, inverter and transfer can be disabled. This is useful for specific applications which are required to disable some of these three functions. If you press the “FUNC” button for more than 2 seconds you can have access to the different possibilities shown in the following diagram,. In programming mode the display only shows the different types of program with the “Charger”, Transfer” and “Inverter” functions.
-18F.1 Diagram of the different mode Indicates an off LED Indicates a orange blinking LED Indicates a lit green LED All the functions are enabled. This is factory setting. The inverter ins disabled. Only the Bypass switch and charger will work normally. Charger and Bypass switch are disabled. The inverter will work continuously even if there is a correct AC voltage at the input. Inverter and charger are both disabled. Only the Bypass switch function is enabled in input and frequency is OK.
-19- G. Charger Information G.1.1 Charging Cycle The fully automatic battery charger can be adjusted so that most major battery types can be charged to the maximum, As soon as the minimum AC voltage is available at the AC input (“AC IN” LED is lit),the Battery Charger is switched on automatically (“CHARGER” LED is lit). The battery is automatically charged to match the pre adjusted voltage levels and charge current.
-20G.2 The Transfer system When an AC voltage is present at the AC IN of the unit , the “AC IN” LED is lit. When this voltage matches the Parameter P-06 value set, and the frequency is between 44Hz and 65Hz, then this power is transferred directly to the AC load and the battery charger section . The “TRANSFER” LED is lit to indicate this has happened. The inverter is then switched off and the battery charger switched on.
-21- I. Auxiliary Contacts In the unit there are two built-in programmable power relays (AUX1, AUX2).
-22- L. Programming Aux Contacts (AUX1, AUX2) L.1.1 Principle The Auxiliary unit can be basically programmed for any operating situation of the unit which is indicated with a LED. The programming is possible for one or more operating situations. If the contact is programmed for many situations, it is activated as soon as the unit finds itself in any one of the programmed situations. L.1.2 Example L.1.2.
-23- M. Maintenance Periodic maintenance is important to avoid potential problems. Every six months disconnect all power in and out from the system. Thoroughly clean and check all battery connections within the battery bank and to the unit . Ensure all connections to the unit are tight. Ensure the vents at the top and bottom of the unit are clear of any debris, such as mud wasps, severe dust build ups etc. Other than this, you should enjoy years of trouble free operation form your unit.
-24- N. Specifications MODEL 1. Inverter Section Nominal battery voltage Input voltage range Output voltage Output frequency Total Harmonic Distortion output THD Dynamic behavior 0→100% Nominal power (W) Maximum power 30 min (W) Maximum power 3 min (W) Maximum power 5 sec (W) Maximum load Asymmetrical load max. Overload and short circuit protection Overheating temperature protection Power factor range Power saving function Maximum efficiency 2.
