Samlexpower PST-60S-48E Owner's Manual
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Samlexpower PST-60S-48E Owner's Manual

Pure sine wave dc-ac power inverter
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DC-AC Power
Inverter
Pure Sine Wave
PST-60S-48E
Owner's
Please read this
manual BEFORE
Manual
installing your
inverter

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Summary of Contents for Samlexpower PST-60S-48E

  • Page 1 DC-AC Power Owner's Please read this manual BEFORE Manual Inverter installing your Pure Sine Wave inverter PST-60S-48E...

  • Page 2: Table Of Contents

    OWNER'S MANUAL | Index SECTION 1 Safety Instructions ........3 SECTION 2 General Information ........6 SECTION 3 Limiting Electromagnetic Interference (EMI) ....... 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

    1.1 IMPORTANT SAFETY INSTRUCTIONS AND SYMBOLS SAVE THESE INSTRUCTIONS. This manual contains important instructions for model PST-60S-48E 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. Preventing DC Input Over Voltage It is to be ensured that the DC input voltage of this unit is limited to less than 64.0 VDC to prevent permanent damage to the unit.

  • Page 6: General Information

    SECTION 2 | General Information 2.1. DEFINITIONS The following definitions are used in this manual for explaining various electrical concepts, specifications and operations: Peak Value: It is the maximum value of electrical parameter like voltage / current. RMS (Root Mean Square) Value: It is a statistical average value of a quantity that varies in value with respect to time.
  • Page 7 SECTION 2 | General Information unit of both X and X is "Ohm" - also denoted as "Ω". The effects of inductive reac- tance X to cause the current to lag the voltage by 90° and that of the capacitive reac- tance X to cause the current to lead the voltage by 90°...
  • Page 8 SECTION 2 | General Information • Electric Motors: At the moment when an electric motor is powered ON, the rotor is stationary (equivalent to being “Locked”), there is no “Back EMF” and the windings draw a very heavy surge of starting current (Amperes) called “Locked Rotor Am- peres”...
  • Page 9 SECTION 2 | General Information Non-Linear Load: A load that does not draw a sinusoidal current when a sinusoidal volt- age is fed to it. For example, non-power factor corrected Switched Mode Power Supplies (SMPS) used in computers, audio video equipment, battery chargers, etc. Resistive Load: A device or appliance that consists of pure resistance (like filament lamps, cook tops, toaster, coffee maker etc.) and draws only Active Power (Watts) from the inverter.
  • Page 10 SECTION 2 | General Information In a Sine Wave, the voltage rises and falls smoothly with a smoothly changing phase angle and also changes its polarity instantly when it crosses 0 Volts. In a Modified Sine Wave, the voltage rises and falls abruptly, the phase angle also changes abruptly and it sits at zero V for some time before changing its polarity.
  • Page 11 SECTION 2 | General Information • Transformer-less capacitive input powered devices like (i) Razors, flashlights, night- lights, smoke detectors etc. (ii) Some re-chargers for battery packs used in hand power tools. These may get damaged. Please check with the manufacturer of these types of devices for suitability.
  • Page 12 SECTION 2 | General Information Inverter TABLE 2.1: INVERTER SIZING FACTOR Sizing Factor Type of Device or Appliance (See note 1) Air Conditioner / Refrigerator / Freezer (Compressor based) Air Compressor Sump Pump / Well Pump / Submersible Pump Dishwasher / Clothes Washer Microwave (where rated output power is the cooking power) Furnace Fan Industrial Motor...

  • Page 13: Limiting Electromagnetic Interference (Emi)

    SECTION 3 | Limiting Electro-Magnetic Interference (EMI) 3.1 EMI COMPLIANCE These inverters contain internal switching devices that generate conducted and radiated electromagnetic interference (EMI). The EMI is unintentional and cannot be entirely eliminated. The magnitude of EMI is, however, limited by circuit design to acceptable levels as per limits laid down in European Standard EN-55022, Class B.

  • 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...

  • 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 RMS. (Frequency is switch selectable (12, Fig 6.1). Default is 50 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...

  • Page 17: Layout

    10. Modular Jack for RC-15A Remote Control (Located at the bottom) 11. Air-suction openings for the fan (At the bottom of the unit − not shown) 12. 50/60 Selector Switch (Default: 50 Hz) Fig. 6.1: Layout of PST-60S-48E SAMLEX AMERICA INC. | 17...

  • Page 18: General Information On Batteries For Powering Inverters

    SECTION 7 | General Information on Lead Acid Batteries 7.1 GENERAL INFO For complete background information on Lead Acid Batteries and charging process, please visit www.samlexamerica.com > support > white papers > White Paper - Batteries, Chargers and Alternators. Lead-acid batteries can be categorized by the type of application: Automotive service - Starting/Lighting/Ignition (SLI, a.k.a.
  • Page 19 SECTION 7 | General Information on Lead Acid Batteries Reserve capacity is the time in minutes for which the battery can deliver 25 Amperes at 80ºF (26.7ºC) till the voltage drops to 1.75V / Cell i.e. 10.5V for 12V battery, 21V for 24V battery and 42V for 48V battery.
  • Page 20 SECTION 7 | General Information on Lead Acid Batteries TABLE 7.2: DISCHARGE CURRENT RATES - “C-RATES” (continued from Previous page) "C-Rate" Discharge Current in Amps = Example of C-Rate Hours of discharge time “T” till ÷ Capacity "C" in Ah Discharge Time Discharge Currents the “End Point Voltage”...
  • Page 21 SECTION 7 | General Information on Lead Acid Batteries 7.8 REDUCTION IN USABLE CAPACITY AT HIGHER DISCHARGE RATES – TYPICAL IN INVERTER APPLICATION As stated above, the rated capacity of the battery in Ah is normally applicable at a dis- charge rate of 20 Hours.
  • Page 22 SECTION 7 | General Information on Lead Acid Batteries TABLE 7.4: STATE OF CHARGE VERSUS STANDING VOLTAGE Standing Standing Standing Standing Percentage of Voltage of Voltage of Voltage of Voltage of Full Charge Individual Cells 12V Battery 24V Battery 48V Battery 100% 2.105V 12.63V...
  • Page 23 SECTION 7 | General Information on Lead Acid Batteries The discharge curves in Fig. 7.1 show the % State of Charge versus the terminal voltage of typical battery under different charge /discharge currents, i.e. “C-Rates” and fixed temperature of 80°F. NOTE: The X-Axis of Curves shown in Fig 7.1 indicates the % State of Charge.
  • Page 24 SECTION 7 | General Information on Lead Acid Batteries Inverters are normally provided with a protection to shut down the output of the inverter if the DC voltage at the input terminals of the inverter drops below a threshold of around (i) 10V for a 12V battery, (ii) 20V for 24V battery and (iii) 40V for 48V battery.
  • 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 48V Inverter or 48V Charger 200 Ah 200 Ah 200 Ah 200 Ah Cable “B”...
  • Page 26 SECTION 7 | General Information on Lead Acid Batteries Positive connection becomes the Positive terminal of the 48V bank. Similarly, the four Negative terminals of Batty Banks 1 to 4 are paralleled (connected together) and this common Negative connection becomes the Negative terminal of the 48V battery bank. 7.15.3 Series –...
  • Page 27 SECTION 7 | General Information on Lead Acid Batteries - The resistances of the interconnecting cables will be balanced. - All the individual batteries / battery strings will see the same series resistance. - All the individual batteries will charge / discharge at the same charging current and thus, will be charged to the same state at the same time.

  • Page 28: Installation

    SECTION 7 | General Information on Lead Acid Batteries And finally, the actual desired rated capacity of the batteries is determined based on the fact that normally only 80% of the capacity will be available with respect to the rated capacity due to non availability of ideal and optimum operating and charging conditions.
  • 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 (behind openings 6, Fig 6.1).
  • Page 30 NEG – NEG – POS + WARNING: Reverse polarity will damage the unit. AVERTISSEMENT : Inversion de polarité peut endommager l’unité. 240.6 Fig. 8.1: PST-60S-48E Overall Dimensions & Mounting Slots (NOTE: Dimensions in mm) PST-600-dimensions 30 | SAMLEX AMERICA INC.
  • Page 31 SECTION 8 | Installation 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 32 SECTION 8 | Installation into the diversion load if there are no other loads. The charge controller will discon- nect the diversion load if the current rating of the controller is exceeded. Disconnec- tion of the diversion load may damage the battery as well as the inverter or other DC loads connected to the battery due to high voltages generated during conditions of high winds (for wind generators), high water flow rates (for hydro generators).
  • Page 33 SECTION 8 | Installation Table 8.1 Wiring Resistance per Foot WIRE SIZE, RESISTANCE IN OHM (Ω) PER FOOT AT 25°C / 77°F AWG#10 0.00108 Ω per Foot Conductors are protected with insulating material rated for specific temperature e.g. 75˚C / 167˚F. As current flow produces heat that affects insulation, there is a maximum permissible value of current (called “Ampacity”) for each size of conductor based on temperature rating of its insulation.
  • Page 34 Note 1) (See Column 2) Note 2) (See Note 3) PST-60S-48E AWG#10 AWG#10 AWG#10 NOTES FOR TABLE 8.2 1) Column 2 indicates the Rated DC Input Current drawn from the battery. 2) Column 3 indicates minimum NEC Ampacity for sizing of conductors. NEC Ampacity is not less than 125% of the rated DC input current (Column 2) - Refer to NEC-2014 (National Electrical Code) - Section 215.2(A)(1)(a) for Feeder Circuits.
  • Page 35 SECTION 8 | Installation c) Where Standard Fuse Rating does not match the required Ampacity (Col- umn 2), the next higher Standard Rating of the fuse may be used - Refer to NEC-2014 (National Electrical Code) - Section 240.4(B) d) Type of fuse: Fast-acting, Current Limiting, UL Class T (UL Standard 248-15) or equivalent 4) Columns 5 to 7 indicate minimum cable conductor size that is based on the following 2 considerations.
  • Page 36 SECTION 8 | Installation 8.5 AC SIDE CONNECTIONS WARNING! Preventing Paralleling of the AC Output 1. The AC output of the inverter cannot be synchronized 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 which is also fed from the utility power/ generator.
  • Page 37 SECTION 8 | Installation In the “Schuko” Receptacle, Type CEE 7/3 (Fig 8.2.2), the Left and Right sockets (2.1, Fig 8.2.2) are internally connected to the 2 current carrying conductors of the AC output of the inverter (“Left” and “Right” is referenced when the receptacle is viewed from the front).

  • Page 38: Operation

    SECTION 8 | Installation 8.6 GROUNDING TO EARTH OR TO OTHER DESIGNATED GROUND For safety, connect the metal chassis of the inverter to the Earth Ground Terminal of the premises where the inverter is installed. An Earthing Nut and Bolt (7, Fig 6.1) has been provided for making the above connection.
  • Page 39 SECTION 9 | Operation Switch on the AC load(s). The GREEN "POWER" LED (2, Fig 6.1) should remain lighted 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.

  • 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 Red LED marked “OVERLOAD” (3, Fig 6.1) will turn ON and buzzer alarm will sound. The Green LED marked “POWER” (2, Fig 6.1) will continue to be lighted. The unit will be latched in this shut down condition and will require manual reset. To reset, switch OFF the unit using the ON/OFF Switch (1, Fig 6.1), wait for 3 minutes and then switch ON the unit again.
  • Page 42 The following DC side fuses have been provided for internal protection of the DC input side. The fuses are 58V, Blade Fuses. PST-60S-48E: 2 pieces of 10A in parallel = 20A total 10.7 REVERSE POLARITY AT THE DC INPUT TERMINALS...

  • 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 Green LED marked "POWER" DC input terminals input circuit. (2, Fig 6.1) does not light. •...
  • Page 44 SECTION 11 | Troubleshooting Guide ISSUE POSSIBLE CAUSE REMEDY There is no AC output. The • Shut-down due to high • Check that the voltage at the DC input Green LED marked "POWER" input DC voltage terminals is less than 64.0 VDC (2, FIG 6.1) is lighted.

  • Page 45: Specifications

    SECTION 12 | Specifications MODEL NO. PST-60S-48E OUTPUT OUTPUT VOLTAGE 230 VAC ± 3% MAXIMUM OUTPUT CURRENT 2.7A OUTPUT FREQUENCY 50/60 Hz ± 1% (Switch selectable ; Default: 50 Hz) TYPE OF OUTPUT WAVEFORM Pure Sine Wave TOTAL HARMONIC DISTORTION OF <...

  • Page 46: Warranty

    Warranty 3 YEAR LIMITED WARRANTY PST-60S-48E is manufactured by Samlex America, Inc. (the “Warrantor“) is warranted to be free from defects in workmanship and materials 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 47 NOTES: SAMLEX AMERICA INC. | 47...
  • Page 48 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 Delta, BC Email purchase orders to orders@samlexamerica.com 11001-PST-60S-48E-1119...

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