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Summary of Contents for KW-Generator EFU 1000
- Page 1 MANUAL EFU10000 Pag. 1 / 34 4.0kVA INVERTER UNIT INVERTER EFU 1000 MANUAL KW-Generator GmbH & Co.KG Bänglesäcker 24 73527 Schwäbisch-Gmünd / Lindach Tel: +49 (0) 7171 104 17 – 0 Fax: +49 (0) 7171 104 17 – 29 www.kw-generator.com...
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Page 2: Revision List
MANUAL EFU10000 Pag. 2 / 34 4.0kVA INVERTER UNIT REVISION LIST Rev. Nr. Date Modification Description Required By 05.03.2014 First emission of the specification Detailed new messaging signals and specified that first 29.03.2014 2 / 1 prototype shall not comply to standards of paragraph 11.9. Added output under voltage not severe condition. -
Page 3: Table Of Contents
MANUAL EFU10000 Pag. 3 / 34 4.0kVA INVERTER UNIT 1. CONTENTS REVISION LIST..........................2 CONTENTS..........................3 SAFETY INSTRUCTIONS ..................... 5 ....................... 5 ENERAL NOTES ’ ....................... 5 S INFORMATION ............6 XPLANATION OF THE SYMBOLS ON THIS MANUAL ......................... 6 PECIAL NOTES ........................ - Page 4 MANUAL EFU10000 Pag. 4 / 34 4.0kVA INVERTER UNIT 11.1..........................24 ENERAL 11.2. ) ..............24 NVERTER NPUT EATURES ENERATOR 11.3. 230V ........................24 UPUT 11.4....................25 ONNECTORS AND IRING 11.5. 230V .................... 26 UTPUT ROTECTIONS 11.6......................27 NPUT ROTECTIONS 11.7.
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Page 5: Safety Instructions
This manual should be considered as a permanent part of the equipment and should remain always with it! Customer Service For further information please contact the manufacturer of the equipment: KW-Generator GmbH & Co.KG Bänglesäcker 20 73527 Schwäbisch-Gmünd / Lindach Tel: +49 (0) 7171 104 17 – 0 Fax: +49 (0) 7171 104 17 –... -
Page 6: Explanation Of The Symbols On This Manual
MANUAL EFU10000 Pag. 6 / 34 4.0kVA INVERTER UNIT 2.3 E XPLANATION OF THE SYMBOLS ON THIS MANUAL This manual contains important safety and operational instructions that must be accurately understood and followed during the installation and maintenance of the equipment. To reduce the risk of electrical shock hazards, and to make sure the equipment is safely installed, special safety symbols are used in this manual to highlight potential safety risks and important safety information. - Page 7 MANUAL EFU10000 Pag. 7 / 34 4.0kVA INVERTER UNIT WARNING KWG inverter, in order to work correctly, needs that the temperature does not exceed: o 70°C on the inverter heat sink (see Figure 11), Normally these temperature is not reached if ambient conditions are in according with specification of Chapter 11.
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Page 8: Paralleling
MANUAL EFU10000 Pag. 8 / 34 4.0kVA INVERTER UNIT 2.5 P ARALLELING The inverter is not designed for operating in parallel with other inverters. The inverter is not designed for connection to the public grid WARNING Connections for standby power to a building’s electrical system must be made by a qualified electrician and must comply with all applicable laws and electrical codes. - Page 9 MANUAL EFU10000 Pag. 9 / 34 4.0kVA INVERTER UNIT FLOW Figure 5: Mounting position of the inverter and air flow...
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Page 10: Component Identification
MANUAL EFU10000 Pag. 12 / 34 4.0kVA INVERTER UNIT 4. COMPONENT IDENTIFICATION 4.1 I NVERTER The inverter converts the motor output into a standard 230VAC 50Hz outputs, normally independent by motor oscillations and loading. The location of its input and output connections is shown in Figure 7. OUTPUT CON7 CON6... -
Page 11: Motor Input Connections
MANUAL EFU10000 Pag. 13 / 34 4.0kVA INVERTER UNIT 4.3 M OTOR NPUT ONNECTIONS Three M6 studs L1, L2 and L3, are available for connecting the inverter to the motor. For connecting the inverter to the motor use wires according with the NOTE following: o copper section 2.5 mm... -
Page 12: Relay Connector
MANUAL EFU10000 Pag. 14 / 34 4.0kVA INVERTER UNIT 4.6 R ELAY ONNECTOR A 6 ways auxiliary connector (named CON6) is available. It provides the contacts of an integrated relay, named RL2 , a generic signal output, together with a –... -
Page 13: Pre-Operation Check
MANUAL EFU10000 Pag. 15 / 34 4.0kVA INVERTER UNIT 5. PRE-OPERATION CHECK 5.1 M OUNTING NSTRUCTIONS Use only the specific cable to connect the inverter to the motor. NOTE Use only the counterpart plugs and sockets for the connection of the inverter. - Page 14 MANUAL EFU10000 Pag. 16 / 34 4.0kVA INVERTER UNIT NOTE When working with the maximum output power it must be less than 70°C at point A of Figure 11 (point A is given as per its Cartesian coordinates referred to the origin point O (0;0)). Higher temperatures than the above mentioned reduce drastically the output performances and damage the inverter.
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Page 15: Inverter Use
MANUAL EFU10000 Pag. 18 / 34 4.0kVA INVERTER UNIT 7. INVERTER USE The inverter provides a 230VAC – 50Hz output. The nominal power is 4kW at an engine revolution speed between 1700 rpm and 3000 rpm. NOTE The AC output wave distortion (clipping) could increase at lower speed revolutions. -
Page 16: Braking
MANUAL EFU10000 Pag. 19 / 34 4.0kVA INVERTER UNIT 7.2 B RAKING A braking system is used in order to prevent the DC voltage rising to an impermissible value. When used, it activates a braking resistor (external to inverter) that is connected in parallel to the inverter BUS capacitors. -
Page 17: Mounting And Connecting The Inverter
MANUAL EFU10000 Pag. 20 / 34 4.0kVA INVERTER UNIT 7.4 M OUNTING AND CONNECTING THE INVERTER NOTE Use correct silent blocks to avoid direct transmission of any vibrations to the inverter (see paragraph 11.12.3 for the limits). Before to start the engine it is preferable that all the appliances stay switched off. -
Page 18: Maintenance
MANUAL EFU10000 Pag. 21 / 34 4.0kVA INVERTER UNIT 8. MAINTENANCE The purpose of the maintenance schedule is to keep the system in the best operating conditions. The inverter needs a few operations of maintenance if correctly used. Shut off the engine before performing any maintenance. WARNING Do not touch the box and the wires of the electronic inverter within 10 minutes after the engine has come to a complete stop. -
Page 19: Transporting And Storage
MANUAL EFU10000 Pag. 22 / 34 4.0kVA INVERTER UNIT 9. TRANSPORTING AND STORAGE See Chapter 11 for minimum and maximum storage temperatures. Use the original card boxes and respect the positioning specifications (UP and DOWN directions) when moving the parts. Do not put any weight above the card boxes. -
Page 20: Troubleshooting
MANUAL EFU10000 Pag. 23 / 34 4.0kVA INVERTER UNIT 10. TROUBLESHOOTING The following instructions must be followed when appliance does not operate with engine running. POS. RED LED GREEN LED YELLOW LED CONDITION INSTRUCTION Slow flashing Overload Condition Decrease the load Switch inverter Overload Protection... -
Page 21: Specifications
MANUAL EFU10000 Pag. 24 / 34 4.0kVA INVERTER UNIT 11. SPECIFICATIONS 11.1. G ENERAL 11.1.1 Air Cooling Air Flow Forced ventilation by means of To be Defined Rating external fan 11.1.2 Operating Ambient Class G2. For range -25°C ≤ T ≤... -
Page 22: Connectors And / Or Wiring
MANUAL EFU10000 Pag. 25 / 34 4.0kVA INVERTER UNIT 11.4. C ONNECTORS AND IRING NAME QTY - TYPE - MANUFACTURER COUNTERPART DESCRIPTION Nr.3 Würth PowerOne Bolt L1 – L2 – L3 M6 Ring Terminals 11.4.1 Input P/N 91042 Nr.2 Würth PowerOne Bolt L - N M6 Ring Terminals 11.4.2 230V... -
Page 23: Ac Utput Rotections
MANUAL EFU10000 Pag. 26 / 34 4.0kVA INVERTER UNIT 11.5. 230V UTPUT ROTECTIONS 11.5.1 Overload When protection takes place the inverter switches off automatically. Before restarting the inverter it is preferable to detach all appliances. 18 ± 0.5 A OVERLOAD The protection curve, shown in Figure 12, informs about the transitory time before protection intervention. -
Page 24: Input Protections
MANUAL EFU10000 Pag. 27 / 34 4.0kVA INVERTER UNIT 11.6. I NPUT ROTECTIONS 11.6.1 Inrush Current Limiter A resistor shall limit Inrush Current during start-up. When Voltage stays over 330V for at least 3 seconds, the resistor is bypassed by means of a relay. -
Page 25: Operative & Diagnostic Signals
MANUAL EFU10000 Pag. 28 / 34 4.0kVA INVERTER UNIT 11.9. O & D PERATIVE IAGNOSTIC IGNALS LED STATUS LED SIGNALS COMMENTS GREEN YELLOW RED LED Duration 3 seconds before starting of Fast flashing Fast flashing Fast flashing 11.9.1 Pre-Test & Start-Up sinus generation. -
Page 26: Essaging Ignals
MANUAL EFU10000 Pag. 29 / 34 4.0kVA INVERTER UNIT NOTE When Start Command is available, it is possible to avoid the switching off and on of the generator, resetting the following protections by commutating OFF and ON the start command switch: Overload, Over temperature, Output under voltage (not severe),... -
Page 27: Diagrams And Interfaces
MANUAL EFU10000 Pag. 30 / 34 4.0kVA INVERTER UNIT 11.11. D IAGRAMS AND NTERFACES Figure 12: Overload protection trip delay Vs. output current diagram Figure 13: Overload protection trip delay Vs. load... - Page 28 MANUAL EFU10000 Pag. 31 / 34 4.0kVA INVERTER UNIT Figure 14: Interface from inverter to LED and messaging signals (OPEN COLLECTOR) Figure 15: Start command interface...
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Page 29: Applicable Standards
MANUAL EFU10000 Pag. 32 / 34 4.0kVA INVERTER UNIT 11.12. A PPLICABLE TANDARDS 11.12.1. ARKING CCORDING TO 11.12.1.1 Safety EN 60950 - Protection Class I 11.12.1.2 Emission Residential, EN 61000-6-3 Commercial Light- Industrial Enviroments 11.12.1.3 Conducted Emission EN 61000-6-4 Industrial Enviroments 11.12.1.4 Immunity Industrial... -
Page 30: Guarantee
MANUAL EFU10000 Pag. 33 / 34 4.0kVA INVERTER UNIT 12. GUARANTEE KWG gives a period of guarantee of 12 months for the inverter. The starting date for the guarantee is that marked on the delivery documents. When a faulty inverter happens it must be sent back to KWG, free of charge, NOTE together with some digital pictures of the part taken before the shipment, showing the complete equipment status. -
Page 31: Drawings
MANUAL EFU10000 Pag. 34 / 34 4.0kVA INVERTER UNIT 13. DRAWINGS...
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