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Summary of Contents for Samlexpower PST-15S-12E
- Page 1 DC-AC Power Owner's Please read this manual BEFORE Manual Inverter installing your Pure Sine Wave inverter PST-15S-12E PST-15S-24E PST-30S-12E PST-30S-24E...
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Page 2: Table Of Contents
OWNER'S MANUAL | Index SECTION 1 Safety Instructions ........3 SECTION 2 General Information ........6 SECTION 3 EMC (EMI/EMS) Compliance ..........13 SECTION 4 Powering Direct / Embedded Switch Mode Power Supplies (SMPS) ............14 SECTION 5 Principle of Operation ....... 16 SECTION 6 Layout ............ -
Page 3: Safety Instructions
SECTION 1 | Safety Instructions 1.1 IMPORTANT SAFETY INSTRUCTIONS AND SYMBOLS SAVE THESE INSTRUCTIONS. This manual contains important instructions for models PST-15S / 30S that shall be followed during installation, operation and maintenance. The following safety symbols will be used in this manual to highlight safety and information: WARNING! Indicates possibility of physical harm to the user in case of non-compliance. - Page 4 SECTION 1 | Safety Instructions Installation environment • The inverter should be installed indoor only in a well ventilated, cool, dry environment. • Do not expose to moisture, rain, snow or liquids of any type. • To reduce the risk of overheating and fire, do not obstruct the suction and discharge openings of the cooling fan.
- Page 5 SECTION 1 | Safety Instructions CAUTION! To prevent possibility of paralleling and severe damage to the unit, never use a simple jumper cable with a male plug on both ends to connect the AC output of the unit to a handy wall receptacle in the home / RV / motorhome / caravan.
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Page 6: General Information
SECTION 1 | Safety Instructions Use of External Fuse in DC Input Circuit Use UL Class T (As per UL Standard UL 248-15 / Type "HRC" as per BS88-2 or as per IEC 60269-2) or equivalent fuse of appropriate capacity within 7" of the battery Positive ter- minal. - Page 7 SECTION 2 | General Information Phase Angle, (φ): It is denoted by “φ” and specifies the angle in degrees by which the current vector leads or lags the voltage vector in a sinusoidal voltage. In a purely induc- tive load, the current vector lags the voltage vector by Phase Angle (φ) = 90°. In a purely capacitive load, the current vector leads the voltage vector by Phase Angle, (φ) = 90°.
- Page 8 SECTION 2 | General Information Apparent (S) Power, VA: This power, denoted by "S", is the vectorial sum of the Active Power in Watts and the Reactive Power in “VAR”. In magnitude, it is equal to the RMS value of voltage “V” X the RMS value of current “A”. The Unit is VA. Please note that Apparent Power VA is more than the Active Power in Watts.
- Page 9 SECTION 2 | General Information • AC to DC Switched Mode Power Supplies (SMPS): This type of power supply is used as stand-alone power supply or as front end in all electronic devices powered from Util- ity / Grid e.g. in audio/video/ computing devices and battery chargers (Please see Sec- tion 4 for more details on SMPS).
- Page 10 SECTION 2 | General Information 2.2 OUTPUT VOLTAGE WAVEFORMS = 325.22V PEAK = 280 to 320V PEAK = 230 VAC Sine Wave Modi ed Sine Modi ed Sine Wave Wave sits at ZERO for some time and then rises or falls Pure Sine Wave crosses Zero Volt instantaneously...
- Page 11 SECTION 2 | General Information 2.3 ADVANTAGES OF PURE SINE WAVE INVERTERS • The output waveform is a Sine Wave with very low harmonic distortion and cleaner power like Utility / Grid supplied electricity. • Inductive loads like microwaves, motors, transformers etc. run faster, quieter and cooler.
- Page 12 SECTION 2 | General Information The power rating of inverters is specified as follows: • Maximum Continuous Running Power Rating • Surge Power Rating to accommodate high, short duration surge of power required during start up of certain AC appliances and devices. Please read details of the above two types of power ratings in Section 2.1 under “DEFINITIONS”...
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Page 13: Emc (Emi/Ems) Compliance
SECTION 2 | General Information NOTES FOR TABLE 2.1 1. Multiply the Maximum Continuous Running Power Rating (Active Power Rating in Watts) of the appliance / device by the recommended Sizing Factor to arrive at the Maximum Continuous Running Power Rating of the inverter. 2. -
Page 14: Powering Direct / Embedded Switch Mode Power Supplies (Smps)
SECTION 4 | Powering Direct / Embedded Switch Mode Power Supplies (SMPS) 4.1 CHARACTERISTICS OF SWITCHED MODE POWER SUPPLIES (SMPS) Switch Mode Power Supplies (SMPS) are extensively used to convert the incoming AC power into various voltages like 3.3V, 5V, 12V, 24V etc. that are used to power vari- ous devices and circuits used in electronic equipment like battery chargers, computers, audio and video devices, radios etc. - Page 15 SECTION 4 | Powering Direct / Embedded Switch Mode Power Supplies (SMPS) NOTE: Voltage and current scales are di erent Input voltage Peak inrush current Rated steady state input RMS current Inrush current Fig 4.1: Inrush current in an SMPS NOTE: Voltage Peak Current and current scales...
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Page 16: Principle Of Operation
SECTION 5 | Principle of Operation 5.1 GENERAL These inverters convert DC battery voltage to AC voltage with an RMS (Root Mean Square) value of 230 VAC, 50/60 Hz. 5.2 PURE SINE WAVE OUTPUT WAVEFORM The waveform of the AC voltage is a pure Sine Waveform that is same as the waveform of Grid / Utility power (Supplementary information on pure Sine Waveform and its advantages are discussed in Sections 2.2 to 2.4). -
Page 17: Layout
SECTION 6 | Layout 6. LAYOUT LEGEND ON/OFF switch Status LED Ÿ Green: Normal – AC output is ON Ÿ Orange: Abnormal – AC output is OFF AC output receptacle – “Schuko”/CEE 7/3 50 / 60 Hz selector switch Opening for cooling fan Grounding terminal –... - Page 18 SECTION 7 | General Information on Lead Acid Batteries 7.2 DEEP CYCLE LEAD ACID BATTERIES Deep cycle batteries are designed with thick-plate electrodes to serve as primary power sources, to have a constant discharge rate, to have the capability to be deeply discharged up to 80 % capacity and to repeatedly accept recharging.
- Page 19 SECTION 7 | General Information on Lead Acid Batteries 7.6 SPECIFYING CHARGING / DISCHARGING CURRENTS: C-RATE Electrical energy is stored in a cell / battery in the form of DC power. The value of the stored energy is related to the amount of the active materials pasted on the battery plates, the surface area of the plates and the amount of electrolyte covering the plates.
- Page 20 SECTION 7 | General Information on Lead Acid Batteries Lead-Acid Battery Chart - 80˚F / 26.7˚C 24V 12V 33.0 16.5 C/10 32.0 16.0 CHARGE C/20 31.0 15.5 C/40 30.0 15.0 29.0 14.5 28.0 14.0 27.0 13.5 26.0 13.0 C/100 C/20 25.0 12.5 C/10...
- Page 21 SECTION 7 | General Information on Lead Acid Batteries TABLE 7.3 BATTERY CAPACITY VERSUS RATE OF DISCHARGE – C-RATE (Continued from the previous page) C-Rate Discharge Current Usable Capacity (%) Table 7.3 shows that a 100 Ah capacity battery will deliver 100% (i.e. full 100 Ah) capacity if it is slowly discharged over 20 Hours at the rate of 5 Amperes (50W output for a 12V inverter and 100W output for a 24V inverter).
- Page 22 SECTION 7 | General Information on Lead Acid Batteries Check the individual cell voltages / specific gravity. If the inter cell voltage difference is more than a 0.2V, or the specific gravity difference is 0.015 or more, the cells will require equalization.
- Page 23 SECTION 7 | General Information on Lead Acid Batteries TABLE 7.5 TERMINAL VOLTAGE AND SOC OF LOADED BATTERY Discharge Current: Terminal Voltage at 80% State Terminal Voltage When Completely C-Rate of Discharge (20% SOC) Discharged (0% SOC) C/3 A 10.45V 20.9V 09.50V 19.0V...
- Page 24 SECTION 7 | General Information on Lead Acid Batteries In view of the above, it may be seen that a fixed Low DC Input Voltage Alarm is not useful. Temperature of the battery further complicates the situation. All the above analysis is based on battery electrolyte temperature of 80°F.
- Page 25 SECTION 7 | General Information on Lead Acid Batteries 7.15 SERIES AND PARALLEL CONNECTION OF BATTERIES 7.15.1 Series Connection Cable “A” Battery 4 Battery 3 Battery 2 Battery 1 24V Inverter or 24V Charger Cable “B” Fig 7.2: Series Connection When two or more batteries are connected in series, their voltages add up but their Ah capacity remains the same.
- Page 26 SECTION 7 | General Information on Lead Acid Batteries 7.15.3 Series – Parallel Connection 12V String 1 12V String 2 Battery 1 Battery 2 Battery 3 Battery 4 Cable “A” 12V Inverter or 12V Charger Cable “B” Fig. 7.4: Series-Parallel Connection Figure 7.4 shows a series –...
- Page 27 SECTION 7 | General Information on Lead Acid Batteries 7.16 SIZING THE INVERTER BATTERY BANK One of the most frequently asked questions 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.
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Page 28: Installation
SECTION 7 | General Information on Lead Acid Batteries FOR 12V BATTERY: 500 Ah ÷ 0.8 = 625 Ah (note that the actual energy required by the load was 300 Ah). FOR 24V BATTERY: 250 Ah ÷ 0.8 = 312.5 Ah (Note that the actual energy required was 150 Ah). It will be seen from the above that the final rated capacity of the batteries is almost 2 times the energy required by the load in Ah. - Page 29 SECTION 8 | Installation Working Environment: Indoor use. Cool: Heat is the worst enemy of electronic equipment. Hence, please ensure that the unit is installed in a cool area that is also protected against heating effects of direct exposure to the sun or to the heat generated by other adjacent heat generating devices. Well Ventilated: The unit is cooled by convection and by forced air-cooling by tempera- ture controlled fan.
- Page 30 SECTION 8 | Installation 8.2 OVERALL DIMENSIONS The overall dimensions and the location of the mounting slots are shown in Fig. 8.1. Fig. 8.1: PST-15S / PST-30S: Dimensions and mouting slots. 8.3 MOUNTING ORIENTATION The unit has air intake and exhaust openings for the cooling fan. It has to be mounted in such a manner so that small objects should not be able to fall easily into the unit from these openings and cause electrical / mechanical damage.
- Page 31 SECTION 8 | Installation WARNING! Mounting the unit vertically on a vertical surface is NOT recommended (fan opening facing up or down). As explained above, this is to prevent falling of objects into the unit through the fan opening when the fan opening faces up. If fan opening faces down, hot damaged component may fall out.
- Page 32 SECTION 8 | Installation unit). If the input is connected in reverse polarity, DC fuse(s) inside the inverter will blow and may also cause permanent damage to the inverter. 8.4.3 Connection from Batteries to the DC Input Side – Sizing of Cables and Fuses CAUTION! The input section of the inverter has large value capacitors connected across the...
- Page 33 SECTION 8 | Installation the current & the resistance of the length of the cable should be less than 2% to 5%. Use oil resistant, multi-stranded copper wire cables rated at 90ºC / 194°F minimum. Do not use aluminum cable as it has higher resistance per unit length. Cables can be bought at a marine / welding supply store.
- Page 34 (See Note 2) (Cable Routing In Free Air) Up to 3 ft. Up to 10 ft. (Column 1) (Column 2) (Column 3) (Column 5) (Column 6) PST-15S-12E 1.5 mm / AWG#16 6 mm / AWG#10 PST-15S-24E 0.75 mm / AWG#19 2.0 mm...
- Page 35 CAUTION! Limiting Power Draw from 12V Power Outlet in Vehicles DC side current draw of PST-15S-12E and PST-30S-12E is around 1/10th of the AC side power being delivered. Please check the size of the vehicle fuse that has been used to supply the 12V power outlet. Maximum power drawn from PST-15S-12E / PST-30S-12E should be less than 10 times the size of this fuse.
- Page 36 SECTION 8 | Installation is also fed from the utility power/ generator. Such a connection will result in parallel operation and AC power from the utility / generator will be fed back into the inverter which will instantly damage the output section of the inverter and may also pose a fire and safety hazard.
- Page 37 "L2" and metal top socket "L1" and chassis / Grounding chassis / Grounding bottom socket "L2" Spring Contact Spring Contact PST-15S-12E 140 ± 10 VAC 90 ± 10 VAC 230 VAC ± 3% PST-15S-24E 140 ± 10 VAC 90 ± 10 VAC 230 VAC ±...
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Page 38: Operation
SECTION 8 | Installation For safety, connect the metal chassis of the inverter to the Main Earthing Terminal of the premises or to the other designated Ground (For example, in a vehicle, the metal frame / chassis of the vehicle is normally designated as the Negative DC Ground). A Chassis Ground- ing Terminal (6 in Fig 6.1) has been provided for grounding the metal chassis of the inverter to the appropriate Ground. - Page 39 SECTION 9 | Operation Switch on the AC load(s). The Status LED (2 in Fig 6.1) should remain Green for normal operation of the load. 9.3 POWERING ON THE LOADS After the inverter is switched ON, it takes a finite time to become ready to deliver full power.
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Page 40: Protections
SECTION 10 | Protections 10. PROTECTIONS The inverter has been provided with protections detailed below: 10.1 POWER SURGE / OVERLOAD / SHORT CIRCUIT SHUT DOWN INFO Please refer to definitions of Active Power (Watts), Apparent Power (VA) and Power Factor (PF) at Section 2.1. In the explanation below, the values of Power are expressed in Apparent Power in VA. - Page 41 SECTION 10 | Protections Status LED (2, Fig 6.1) will turn ORANGE and buzzer alarm will sound. The unit will be latched in this shut down condition and will require manual reset. To reset, switch OFF the unit, wait for 3 minutes and then switch ON the unit again. Before switching ON, determine and remove the cause of overloading.
- Page 42 No. of fuses Total Amperage of Model No. individual fuse in parallel paralleled fuses PST-15S-12E PST-15S-24E PST-30S-12E PST-30S-24E NOTE: Each fuse is 32V, Automotive Blade Fuse Type "ATO" by Little Fuse or equivalent 10.7 REVERSE POLARITY AT THE DC INPUT TERMINALS...
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Page 43: Troubleshooting Guide
SECTION 11 | Troubleshooting Guide ISSUE POSSIBLE CAUSE REMEDY When switched ON, the There is no voltage at the • Check the continuity of the battery Status LED does not light. DC input terminals input circuit. Buzzer is OFF. There is no AC •... - Page 44 SECTION 11 | Troubleshooting Guide ISSUE POSSIBLE CAUSE REMEDY There is no AC output. Status Shut-down due to high in- • Check that the voltage at the DC input LED is ORANGE. Buzzer is put DC voltage – 16.5V or terminals is less than 16.5V for the 12V higher for the 12V versions versions and less than 33V for the 24V...
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Page 45: Specifications
SECTION 12 | Specifications MODEL NO. PST-15S-12E PST-15S-24E OUTPUT OUTPUT VOLTAGE 230 VAC ± 3% 230 VAC ± 3% MAXIMUM OUTPUT CURRENT 0.65A 0.65A OUTPUT FREQUENCY 50/60 Hz ± 1% : Switch Selectable (Default 50 Hz) TYPE OF OUTPUT WAVEFORM... - Page 46 SECTION 12 | Specifications MODEL NO. PST-30S-12E PST-30S-24E OUTPUT OUTPUT VOLTAGE 230 VAC ± 3% 230 VAC ± 3% MAXIMUM OUTPUT CURRENT 1.3A 1.3A OUTPUT FREQUENCY 50/60 Hz ± 1% : Switch Selectable (Default 50 Hz) TYPE OF OUTPUT WAVEFORM Pure Sine Wave Pure Sine Wave TOTAL HARMONIC DISTORTION...
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Page 47: Warranty
Warranty 3 YEAR LIMITED WARRANTY PST-15S-12E / PST-15S-24E / PST-30S-12E / PST-30S-24E manufactured by Samlex America Inc. (the “Warrantor“) are warranted to be free from defects in workmanship and mate- rials under normal use and service. The warranty period is 3 years for the United States and Canada, and is in effect from the date of purchase by the user (the “Purchaser“). - Page 48 Contact Information Toll Free Numbers Ph: 1 800 561 5885 Fax: 1 888 814 5210 Local Numbers Ph: 604 525 3836 Fax: 604 525 5221 Website www.samlexamerica.com USA Shipping Warehouses Kent, WA Plymouth, MI Canadian Shipping Warehouse Richmond, BC Email purchase orders to orders@samlexamerica.com 11001-PST-15S-30S-12E-24E-1021...
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