1. Manuals
  2. Brands
  3. Samlex Europe Manuals
  4. Inverter
  5. SWI 3000-12
  6. Owner's manual

Samlex Europe SWI 3000-12 Owner's Manual

Pure sinewave inverter
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
SINEWAVE INVERTER
Pure Sinewave Inverter
Model No.
SWI 3000-12
SWI 3000-24
Owners Manual
Please read this manual before operating your inverter

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SWI 3000-12 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Samlex Europe SWI 3000-12

Summary of Contents for Samlex Europe SWI 3000-12

  • Page 1 SINEWAVE INVERTER Pure Sinewave Inverter Model No. SWI 3000-12 SWI 3000-24 Owners Manual Please read this manual before operating your inverter...

  • 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 models SWI 3000-12 and SWI 3000-24 that shall be followed during installation, operation and maintenance. The following safety symbols will be used in this manual to highlight safety...
  • 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 does not exceed 16.5 VDC for the 12V battery version and 33.0 VDC for the 24V battery version to prevent...

  • 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 and capacitance and causes the current vector to lead the voltage vector by Phase Angle (φ) = 90°. The unit of both X and X is “Ohm” - also denoted as “Ω”. The effects of inductive reactance X to cause the current to lag the voltage by 90°...
  • Page 8 SECTION 2 | General Information Surge Power Rating: During start up, certain loads require considerably higher surge of power for short duration (lasting from tens of millisecs to few seconds) as compared to their Maximum Continuous Running Power Rating. Some examples of such loads are given below: •...
  • Page 9 SECTION 2 | General Information be > 0 <1. Normally it ranges from 0.5 to 0.8 e.g. (i) AC motors (0.4 to 0.8), (ii) Transformers (0.8) (iii) AC to DC Switch Mode Power Supplies (0.5 to 0.6) etc. Load: Electrical appliance or device to which an electrical voltage is fed. Linear Load: A load that draws sinusoidal current when a sinusoidal voltage is fed to it.
  • Page 10 SECTION 2 | General Information 2.2 OUTPUT VOLTAGE WAVEFORMS Modi ed Sine Sine Wave Wave sits at Modi ed Sine Wave ZERO for some time and then rises or falls Pure Sine Wave crosses Zero Volt instantaneously TIME Fig. 2.1: Pure and Modified Sine Waveforms for 230 VAC, 50 Hz. The output waveform of the Samlex SWI series inverters is a Pure Sine Wave like the waveform of Utility / Grid Power.
  • 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”...

  • Page 13: Limiting Electromagnetic Interference (Emi)

    SECTION 2 | General Information NOTES FOR TABLE 2.1 1. Multiply the Maxim um 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.

  • 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 various 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: Inrusch 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. 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 SECTION 6 | Layout 1. Three Position Rocker Switch • – ON - Push top end to switch ON locally • 0 OFF – Centered to switch OFF locally • = EXT switch - Push button end to enable switching ON and OFF by external switching control 2.

  • Page 18: General Information On Lead-Acid Batteries

    SECTION 7 | General Information on Lead Acid Batteries 7.1 GENERAL Lead-acid batteries can be categorized by the type of application: 1. Automotive service - Starting / Lighting / Ignition (SLI, a.k.a. cranking), and 2. Deep cycle service. Deep Cycle Lead Acid Batteries of appropriate capacity are recommended for powering of inverters.
  • 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. 10.7V for 12V battery, 21.4V for 24V battery and 42V for 48V battery.
  • Page 20 SECTION 7 | General Information on Lead Acid Batteries Table 7.2 below gives some examples of C-Rate specifications and applications: TABLE 7.2 DISCHARGE CURRENT RATES - “C-RATES” Hours of discharge time “T” “C-Rate” Discharge Current in Example of C-Rate Discharge till 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 discharge rate of 20 hours. As the discharge rate is increased as in cases where the inverters are driving higher capacity loads, the usable capacity reduces due to “Peukert Effect”.
  • Page 22 SECTION 7 | General Information on Lead Acid Batteries TABLE 7.4 STATE OF CHARGE VERSUS STANDING VOLTAGE Percentage of Standing Voltage of Standing Voltage of Standing Voltage of Full Charge Individual Cells 12V Battery 24V Battery 100% 2.105V 12.63V 25.26V 2.10V 12.6V 25.20V...
  • Page 23 SECTION 7 | General Information on Lead Acid Batteries Coefficient – during charging / discharging, the terminal voltage drops with rise in temperature and rises with drop in temperature. - The amount of discharging current or “C-Rate”: A battery has non linear internal resistance and hence, as the discharge current increases, the battery terminal voltage decreases non-linearly.
  • Page 24 SECTION 7 | General Information on Lead Acid Batteries 7.12 LOW DC INPUT VOLTAGE SHUT-DOWN IN INVERTERS As explained above, at around 80% State of Discharge of the battery at C-Rate discharge current of around C/5 Amps, the Low DC Input Voltage Alarm is sounded at around 10.7V for a 12V battery (at around 21.4V for 24V battery) to warn the user to disconnect the battery to prevent further draining of the battery.
  • Page 25 SECTION 7 | General Information on Lead Acid Batteries 7.13 USE OF EXTERNAL PROGRAMMABLE LOW VOLTAGE DISCONNECTS The above ambiguity can be removed by using an external, programmable Low Voltage Disconnect where more exact voltage threshold can be set to disconnect the battery based on the actual application requirements.
  • Page 26 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 27 SECTION 7 | General Information on Lead Acid Batteries connected in parallel to form a battery bank of 12V with a capacity of 400 Ah. The four Positive terminals of Batteries 1 to 4 are paralleled (connected together) and this common Positive connection becomes the Positive terminal of the 12V bank. Similarly, the four Negative terminals of Batteries 1 to 4 are paralleled (connected together) and this common Negative connection becomes the Negative terminal of the 12V battery bank.
  • Page 28 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 29 SECTION 7 | General Information on Lead Acid Batteries From table 7.3 “Battery Capacity versus Rate of Discharge”, the usable capacity at 3 hour discharge rate is 60%. Hence, the actual capacity of the 12V batteries to deliver 300 Ah will be equal to: 300 Ah ÷ 0.6 = 500 Ah, and the actual capacity of the 24V battery to deliver 150 Ah will be equal to 150 Ah ÷...

  • Page 30: Installation

    SECTION 8 | Installation 8.1 LOCATION OF INSTALLATION Please ensure that the following requirements are met: 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.
  • Page 31 SECTION 8 | Installation Preventing Radio Frequency Interference (RFI): The unit uses high power switching circuits that generate RFI. This RFI is limited to the required standards. Locate any electronic equipment susceptible to radio frequency and electromagnetic interference as far away from the inverter as possible. Read Section 3 “Limiting Electromagnetic Interference (EMI)”...
  • Page 32 SECTION 8 | Installation NOTE: Dimensions are in mm. Fig. 8.1: SWI 3000 Overall Dimensions & Mounting Slots.
  • Page 33 SECTION 8 | Installation 8.4 DC SIDE CONNECTIONS 8.4.1 Preventing DC Input Over Voltage It is to be ensured that the DC input voltage of this unit does not exceed 16.5 VDC for the 12V battery versions and 33.0 VDC for the 24V battery versions to prevent permanent damage to the unit.
  • Page 34 SECTION 8 | Installation 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 input terminals. As soon as the DC input connection loop (Battery (+) terminal ...
  • Page 35 SECTION 8 | Installation cables rated at 105ºC / 77°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. Effects of low voltage on common electrical loads are given below: •...
  • Page 36 Minimum cable size (See Note 4) Continuous DC External Battery input current Fuse Size <1.5 mm >1.6 - 3 mm SWI 3000-12 360A 400-500A SWI 3000-24 180A 300A 8.4.6 DC Input Connection The DC input terminals for battery connection (14 & 16 in fig. 6.1c) have nut and bolt connection - bolt size is 5/16”...
  • Page 37 AC output Line output Breaker conductors based and Neutral (based on on Ampacity conductors as column 3) at Column 3 per NEC (125% (Ampacity based times Column 2) on conductor temperature of 90°C) SWI 3000-12/ 16.25 2.5 mm SWI 3000-24...
  • Page 38 SECTION 8 | Installation 8.6 GROUNDING TO EARTH OR TO OTHER DESIGNATED GROUND For safety, ground the metal chassis of the inverter 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).
  • Page 39 SECTION 8 | Installation 8.8 ON/OFF CONTROL FROM REMOTE LOCATION USING 2-WIRE OR 1-WIRE EXTERNAL ON/OFF CONTROL CAUTION! For operation of this function, the 3-Position Rocker Switch on the front panel marked “ON/OFF/EXT. Switch (1, fig 6.1a) should be FIRST pushed at the bottom end (marked “=”) to rock it to the bottom “EXT.
  • Page 40 SECTION 8 | Installation • 1-Wire ON/OFF Control Using Switched DC Voltage from the Battery Supplying the Inverter, fig 8.2(c) : CAUTION! 1. Please ensure correct polarity of wiring connection. Positive (+) of the battery voltage should be connected to Terminal 3. In case the polarity is reversed, the ON/OFF control will NOT operate.

  • Page 41: Operation

    SECTION 8 | Installation 8.9 SWITCH FREQUENCY SETTING 50/60HZ The frequency default setting is 50Hz. The frequency switch is located behind the cover plate ( position 8 on figure 6.1(b). The location for the switch in figure 6.1(b) is position 20. Turn off the inverter before adjusting the switch setting.
  • Page 42 SECTION 9 | Operation 9.2 POWERING ON THE LOADS After the inverter is switched on, it takes a time to become ready to deliver full power. Hence, always switch on the load(s) after a few seconds of switching on the inverter.

  • Page 43: Protections

    SECTION 9 | Operation CAUTION! When the inverter is switched OFF using the optional external Remote Control RC-300, there will be a very minor current drain of up to 3mA for the 12V version of the inverter and up to 5mA for the 24V version of the inverter.
  • Page 44 SECTION 10 | Protections The AC output voltage will shut down due to overload and short circuit conditions as follows: POWER SURGE CONDITION: When the AC output current tries to exceed around 200% of the rated value, output current limiting is carried out instantly resulting in drop in the AC output voltage (the drop is proportional to the load impedance).
  • Page 45 The fuses are 32V, Automotive Type Blade Fuses, Type “ATC” by Cooper Bussmann or equivalent: SWI 3000-12: 12 pieces of 30A in parallel = 360A total SWI 3000-24: 12 pieces of 15A in parallel = 180A total 10.7 REVERSE POLARITY AT THE DC INPUT TERMINALS...
  • Page 46 SECTION 10 | Protections Negative of the battery wrongly connected to the Positive DC input terminal of the inverter) will blow the external / internal DC side fuses. If the DC side fuse is blown, the inverter will be dead. The Green LED marked “POWER” (2, fig 6.1a) will be switched OFF and there will be no AC output.

  • Page 47: Troubleshooting Guide

    SECTION 11 | Troubleshooting Guide ISSUE POSSIBLE CAUSE REMEDY When switched ON, There is no voltage at • Check the continuity of the battery input circuit. the Green LED marked the DC input terminals. • Check that the internal/external battery fuses are “POWER”...
  • Page 48 SECTION 11 | Troubleshooting Guide ISSUE POSSIBLE CAUSE REMEDY There is no AC output. Shut-down due to high • Check that the voltage at the DC input terminals The Green LED marked input DC voltage – > is less than 16.5V for 12V versions and less than “POWER”...

  • Page 49: Specifications

    SECTION 12 | Specifications Model No. SWI 3000-12 SWI 3000-24 Output Power 3000 Watts Continuous 3000 Watts Surge 6000 Watts < 8mS Output Voltage 230Vac +/- 3% Output Frequency (default setting) 50Hz +/- 1Hz Frequency Selection 50Hz / 60Hz selectable...

  • Page 50: Warranty

    CAUTION! RISK OF FIRE Do not replace any vehicle fuse with a rating higher than recommended by the vehicle manufacturer. SWI 3000-12 is rated to draw 360 Amperes from 12V vehicle outlet and SWI 3000-24 is rated to draw 180 Amperes from 24V battery vehicle outlet.

  • Page 51: Declaration Of Confirmity

    (Each DC INPUT fUSES (INTERNAL) ATC, 32V, 30A) 32V, 15A) DISPLAY Model No. Model No. SWI 3000-12, SWI 3000-24 Power, Overload, Over Temperature Power, Overload, Over Temperature PROTECTIONS LoW DC INPUT Vo LTAGE ALARM 10.7V ± 0.1V 21.4V ± 0.2V LoW DCINPUTVoLTAGESHUTDoWN 10V ±...
  • Page 52 www.samlex.com www.samlex-solar.com...

This manual is also suitable for:

Swi 3000-24

Table of Contents