Samlexpower PST-15S-12A Owner's Manual

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Manual is about: DC-AC Inverters

Summary of PST-15S-12A

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    Owner's manual please read this manual before operating your inverter dc-ac inverters pst-15s-12a pst-15s-24a.

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    Index safety instructions ............................................................................................. 2,3 inverters - general information ...................................................................... 4,5,6 characteristics of sinusoidal ac power ...............................

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    Page 2 safety instructions please read these instructions before installing or operating the inverter to prevent personal injury or damage to the inverter. General installation and wiring compliance - installation and wiring must comply with the local and national electrical codes and must be done b...

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    Page 3 inverter related preventing paralleling of the ac output the ac output of this inverter cannot be synchronised with another ac source and hence, it is not suitable for paralleling. The ac output of the inverter should never be connected directly to an electrical breaker panel / load center wh...

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    Inverters - general information why an inverter is needed the utility grid supplies you with alternating current (ac) electricity. Ac is the standard form of electricity for anything that “plugs in” to the utility power. Direct current (dc) electricity flows in a single direction. Batteries provide ...

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    Page 5 loads that require “surge power” to start resistive types of loads (like incandescent lamps, toaster, coffee maker, electric range, iron etc) do not require extra power to start. Their starting power is the same as their running power. Some loads like induction motors and high inertia motor d...

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    Page 6 power rating of microwaves the power rating of the microwave generally refers to the cooking power. The electrical power consumed by the microwave will be approximately 2 times the cooking power. The “ surge power ” of the inverter should be 2 times the electrical power (i.E., 4 times the coo...

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    Page 7 characteristics of sinusoidal ac power voltage, current, power factor, types of loads the voltage waveform of 120 vac, 60 hz mains / utility power is like a sine wave. In a voltage with a sine wave-form, the instantaneous value and polarity of the voltage varies with respect to time and the w...

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    Page 8 advantages of a pure sine-wave inverter over a modified sine-wave inverter the output voltage of a sine-wave inverter has a sine wave-form like the sine wave-form of the mains / utility voltage. In a sine wave, the voltage rises and falls smoothly with a smoothly changing phase angle and also...

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    Page 9 ac power distribution and grounding caution! Please note that the ac output connections and the dc input connections on these inverters are not connected (bonded) to the metal chassis of the inverter. Both the input and output connections are isolated from the metal chassis and from each othe...

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    Page 10 grounded electrical power distribution system the n ational e lectrical c ode (nec) requires the use of a “grounded electrical distribu- tion system”. As per this system, one of the two current-carrying conductors is required to be grounded. This grounded conductor is called the “neutral / c...

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    Page 11 grounding to earth or to other designated ground for safety, the metal chassis of the inverter is required to be grounded to the earth ground or to the other designated ground (for example, in a mobile rv, the metal frame of the rv is normally designated as the negative dc ground). An equipm...

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    Page 12 powering direct / embedded switched mode power supply (smps) non-linear nature of current drawn by switched mode power supplies power supplies are used to convert ac voltages like 120 vac to various dc voltages like 3.3 v, 5 v, 12 v, 24 v, 48 v etc. Majority of modern day electronic devices ...

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    Page 13 layout principle of operation the inverter converts the dc voltage of the battery to 120 v, 60 hz. Ac voltage. The voltage conversion takes place in two stages. In the first stage, the dc voltage of the battery is converted to a high voltage dc using high frequency switching and pulse width ...

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    Specifying batteries, chargers & alternators the inverter will require deep cycle lead acid batteries of appropriate capacity. Lead-acid batteries can be categorized by the type of application: automotive service - s tarting/ l ighting/ i gnition ( sli , a.K.A. Cranking) and deep cycle service sli b...

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    Typical battery sizes below is a chart of some battery sizes applicable for powering inverters: bci * group battery voltage, v battery ah 27 / 31 12 105 4 d 12 160 8d 12 225 gc2** 6 220 * battery council international ** golf cart reduction in usable capacity at higher discharge rates. As stated abo...

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    Depth of discharge and battery life the more deeply a battery is discharged on each cycle, the shorter the battery life. Using more batteries than the minimum required will result in longer life for the battery bank. A typical cycle life chart is given at table 2 below: table 2. – typical cycle life...

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    Sizing the inverter battery bank one of the most frequently asked question is, “how long will the batteries last?’. This question cannot be answered without knowing the size of the battery system and the load on the inverter. Usually this question is turned around to ask “how long do you want your l...

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    Charging batteries the batteries can be charged by using good quality ac powered battery charger or from alternative energy sources like solar panels, wind or hydro systems. Make sure an appropriate battery charge controller is used. It is recommended that the batteries may be charged at 10% to 13 %...

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    Installation page 19 general installation and wiring compliance - installation and wiring must comply with the local and the national electrical codes and must be done by a certified electrician - in building / residential applications, electrical codes do not allow permanent connection of ac distri...

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    Page 20 dc side connections the dc input power to the inverter is derived from deep cycle batteries of the required capacity. Read under “specifying batteries, chargers and alternators” on page 14 for details on sizing and charging of batteries. Preventing input over voltage it is to be ensured that...

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    Page 21 the dc input circuit is required to handle very large dc currents and hence, the size of the cables and connectors should be selected to ensure minimum voltage drop between the battery and the inverter. Thinner cables and loose connections will result in poor inverter performance and will pr...

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    Page 22 note: when using cigarette lighter receptacle in a 12v vehicle, limit the power to less than 100 watts as the cigarette lighter receptacle wiring in a 12v vehicle is normally fused for 8 to 10a reducing rf interference to reduce the effect of radiated interference, twist the dc side cables. ...

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    Page 23 ac output connections the inverter uses nema 5-15r receptacle for connecting the ac output to devices and appliances fitted with a nema 5-15p plug. In this nema 5-15 r receptacle, two rectangular slots are connected to the current-carrying conductors of the ac power source inside the inverte...

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    Operation page 24 powering on the loads after the inverter is switched on, it takes a finite time for it to become ready to deliver full power. Hence, always switch on the load(s) after a few seconds of switching on the inverter. Avoid switching on the inverter with the load already switched on. Thi...

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    Protections against abnormal conditions page 25 no load draw (idle current) when the on / off switch is turned on, all the circuitry inside the inverter becomes alive and the ac output is made available. In this condition, even when no load is being supplied (or, if a load is connected but has been ...

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    Page 26 shut-down due to reversal of polarity at the dc input terminals. The positive of the battery should be connected to the positive dc input terminal of the inverter, (the tip of the cigarette lighter plug), and the negative of the battery should be connected to the negative dc input terminal o...

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    Troubleshooting guide symptom on switching on, led (2) does not light. Buzzer is off. There is no ac voltage buzzer alarm is sounded when load is switched on. Voltage at dc input terminals reads between 10 and 10.5 v for pst-15s-12a or between 20 & 21 v for pst-15s-24a. Led (2) is green. Ac output v...

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    Symptom ac output voltage shuts down when vehicles engine is cranked possible cause shut-down due to over temperature because of fan failure or inadequate cooling as a result of high ambient temperature or insufficient air exchange shut down due to overload or short circuit on the output side. The i...

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    Page 29 specifications input voltage .......................................... 10.5 to 16.5 vdc...................21 to 33 v dc input current at no load ................................ Output voltage ..................................... 120 v ac +/- 3%................120 v ac +/- 3% output freque...

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    2 year limited warranty the pst-15s-12a / pst-15s-24a manufactured by samlex america, inc. ( the “ warrantor “ ) is warranted to be free from defects in workmanship and materials under normal use and service. This warranty is in effect for 2 years from the date of purchase by the user ( the “ purcha...

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    Version pst-15s-12a_24a (feb_2007) 110-17 fawcett rd coquitlam, b.C. Canada v3k 6v2 t: 604 525 3836 f: 604 525 5221 e-mail: samlex@samlexamerica.Com website: www.Samlexamerica.Com.