Leroy-Somer R438 Manuals

2 pdf manual(s) Leroy-Somer R438 for free download (Document Types: Installation and maintenance manual)

Available Documents for R438:

Leroy-Somer R438 Installation and maintenance manual Main Page Preview

Installation and maintenance manual [PDF] (16 pages)

  • Brand: Leroy-Somer
  • Model: R438
  • Format: PDF
  • Key Aspects: Best Practices for Everyday Use, Unpacking and Inspection Guidelines, Package Contents and Accessories List
  • Updated: 31.07.2026
  • Source File: 1592137.pdf
  • Pages: 16
  • Description: Instruction and usage manual for the Leroy-Somer R438.

Document Preview & Text Transcription

This manual is to be given to the end user 3971 en - 11.2006 / c R438 A.V.R. Installation and maintenance X2 X1 Z2 E+ E- 0V 110 220 Z1 6- R 438 1 T3 50Hz 60Hz T5 T10 LAM 13 % Field Armature 10 Yellow 11 Red 9 Green 12 Black Slow fuse 250V 8 A quency with LAM without LAM all-guides com Installation and maintenance R438 A.V.R. 2 3971 en - 11.2006 / c LEROY-SOMER SAFETY MEASURES Before using your machine for the first time, it is important to read the whole of this installation and maintenance manual. All necessary operations and interventions on this machine must be performed by a qualified technician. Our technical support service will be pleased to provide any additional infor- mation you may require. The various operations described in this manual are accompanied by recommen- dations or symbols to alert the user to potential risks of accidents. It is vital that you understand and take notice of the following warning symbols. This A.V.R. can be incorporated in a machine marked C.E. Warning symbol for an operation capable of damaging or destroying the machine or surround-ing equipment. Warning symbol for general danger to personnel. Warning symbol for electrical danger to personnel. Note: LEROY-SOMER reserves the right to modify the characteristics of its products at any time in order to incorporate the latest technological developments. The information contained in this document may therefore be changed without notice. WARNING WARNING This manual concerns the alternator A.V.R. which you have just purchased. We wish to draw your attention to the contents of this maintenance manual. By following certain important points during installation, use and servicing of your A.V.R., you can look forward to many years of trouble-free operation. Installation and maintenance R438 A.V.R. 3971 en - 11.2006 / c LEROY-SOMER 3 CONTENTS 1 - SUPPLY .............................................................................................................................4 1.1 - AREP excitation system ..............................................................................................4 1.2 - PMG excitation system................................................................................................5 1.3 - SHUNT or separate excitation system.........................................................................5 2 - R438 A.V.R. .......................................................................................................................6 2.1 - Characteristics.............................................................................................................6 2.2 - Frequency compared with voltage (without LAM)........................................................6 2.3 - LAM (Load Acceptance Module) characteristics .........................................................6 2.4 - Typical effects of the LAM with a diesel engine with or without a LAM (U/F only).......7 2.5 - R438 A.V.R. options ....................................................................................................7 3 - INSTALLATION - COMMISSIONING................................................................................8 3.1 - Electrical checks on the AVR.......................................................................................8 3.2 - Settings........................................................................................................................8 3.3 - Electrical faults...........................................................................................................11 4 - SPARE PARTS................................................................................................................12 4.1 - Designation................................................................................................................12 4.2 - Technical support service..........................................................................................12 All such operations performed on the A.V.R. should be undertaken by personnel trained in the commissioning, servicing and maintenance of electrical and mechanical components. Copyright 2005 : MOTEURS LEROY-SOMER This document is the property of : MOTEURS LEROY-SOMER It may not be reproduced in any form without prior authorization. All brands and models have been registered and patents applied for. Installation and maintenance R438 A.V.R. 4 3971 en - 11.2006 / c LEROY-SOMER 1 - SUPPLY 1.1 - AREP excitation system For both AREP & PMG excitation systems, the alternator voltage regulator is the R438. With AREP excitation, the R438 electronic AVR is powered by two auxiliary windings which are independent of the voltage match circuit. The first winding has a voltage in proportion to that of the alternator (characteristic Shunt), the second has a voltage in proportion to the stator current (compound characteristic: Booster effect). The power supply voltage is rectified and filtered before being used by the AVR monitoring transistor. This principle ensures that regulation is not affected by distortions generated by the load. 4 x holes Ø 5.8 x 175 x 115 mm 200 mm 140 mm X2 X1 Z2 E+ E- 0V 110 220 380 Z1 T1 T2 T3 T4 T5 T6 Varistor 5+ 6- T7 T8 T9 T10 T11 T12 R 438 F1 ST3 50Hz 60Hz ST5 ST10 LAM 13 % LAM 25 % P5 ST11 ST2 ST1 P3 P2 P1 ST4 ST9 Option AREP PMG PMG T.I. Option S1 P1 Ph.1 P2 S2 R731 Option AREP SYSTEM Field Armature 10 Yellow 11 Red 9 Green 12 Black MAIN FIELD Aux. windings Slow fuse 250V 8 A Frequency with LAM without LAM Excitation ceiling knee-point: 65 Hz open Response time normal fast Stability Voltage Single- phase detection External potentiometer for adjusting the voltage Quad droop according voltage STATOR : 6 wires (marked T1 to T6) STATOR : 12 wires (marked T1 to T12) in 3-ph. detection ST1 open 3-ph. detection
Leroy-Somer R438 Installation and maintenance manual Main Page Preview

Installation and maintenance manual [PDF] (16 pages)

  • Brand: Leroy-Somer
  • Model: R438
  • Format: PDF
  • Key Aspects: Pre-Deployment Preparation Steps, Model Variations and Compatibility, Technical Support and Resource Links
  • Updated: 25.07.2026
  • Source File: 907143.pdf
  • Pages: 16
  • Description: Professional operation guide for the Leroy-Somer R438.

Document Preview & Text Transcription

200 mm 140 mm X2 X1 Z2 E+ E- 0V 110 220 380 Z1 T1 T2 T3 T4 T5 T6 5+ 6- T7 T8 T9 T10 T11 T12 R 438 F1 ST5 P5 ST11 ST2 ST1 P3 P2 ST4 ST9 AREP PMG PMG T.I. S1 P1 Ph.1 P2 S2 R731 50Hz 60Hz ST10 13 % LAM 25 % P1 2010.11 / f 3971 en - This manual is to be given to the end user R438 A.V.R. Installation and maintenance CALL US TODAY 1-888-POWER-58 REQUEST A QUOTE [email protected] SHOP ONLINE www.genpowerusa.com CALL US TODAY 1-888-POWER-58 REQUEST A QUOTE [email protected] SHOP ONLINE www.genpowerusa.com 2 LEROY-SOMER 2010.11 / f Installation and maintenance R438 A.V.R. 3971 en - Before using your machine for the first time, it is important to read the whole of this instal- lation and maintenance manual. All necessary operations and interventions on this machine must be performed by a qualified technician. Our technical support service will be pleased to provide any additional infor-mation you may require. The various operations described in this manual are accompanied by recommen-da- tions or symbols to alert the user to potential risks of accidents. It is vital that you unders- tand and take notice of the following warning symbols. This A.V.R. can be incorporated in a ma- chine marked C.E. Warning symbol for an operation ca- pable of damaging or destroying the ma- chine or surround-ing equipment. Warning symbol for general danger to personnel. Warning symbol for electrical danger to personnel. Note: LEROY-SOMER reserves the right to modify the characteristics of its products at any time in order to incorporate the latest tech- nological developments. The information contained in this document may therefore be changed without notice. WARNING This manual concerns the alternator A.V.R. which you have just purchased. We wish to draw your attention to the contents of this maintenance manual. By following certain important points during installation, use and servicing of your A.V.R., you can look forward to many years of trouble-free operation. SAFETY MEASURES CALL US TODAY 1-888-POWER-58 REQUEST A QUOTE [email protected] SHOP ONLINE www.genpowerusa.com CALL US TODAY 1-888-POWER-58 REQUEST A QUOTE [email protected] SHOP ONLINE www.genpowerusa.com LEROY-SOMER 3 2010.11 / f Installation and maintenance R438 A.V.R. 3971 en - CONTENTS 1 - SUPPLY ..............................................................................................................................4 1.1 - AREP excitation system ...............................................................................................4 1.2 - PMG excitation system .................................................................................................5 1.3 - SHUNT or separate excitation system ..........................................................................5 2 - R438 A.V.R. ........................................................................................................................6 2.1 - Characteristics .............................................................................................................6 2.2 - Frequency compared with voltage (without LAM) .........................................................6 2.3 - LAM (Load Acceptance Module) characteristics...........................................................6 2.4 - Typical effects of the LAM with a diesel engine with or without a LAM (U/F only) ..........7 2.5 - R438 A.V.R. options .....................................................................................................7 3 - INSTALLATION - COMMISSIONING .................................................................................8 3.1 - Electrical checks on the AVR ........................................................................................8 3.2 - Settings ........................................................................................................................8 3.3 - Electrical faults ........................................................................................................... 11 4 - SPARE PARTS .................................................................................................................12 4.1 - Designation ................................................................................................................12 4.2 - Technical support service ...........................................................................................12 All such operations performed on the A.V.R. should be undertaken by personnel trained in the commissioning, servicing and maintenance of electrical and mechanical components. The R438 is an IP00 product. It must be installed inside a unit so that this unit’s cover can provide IP20 minimum total protection (it must only be installed on LS alternators in the ap- propriate location so that when viewed externally, it has a higher degree of protection than IP20). Copyright 2005 : MOTEURS LEROY-SOMER This document is the property of : MOTEURS LEROY-SOMER It may not be reproduced in any form without prior authorization. All brands and models have been registered and patents applied for. CALL US TODAY 1-888-POWER-58 REQUEST A QUOTE [email protected] SHOP ONLINE www.genpowerusa.com CALL US TODAY 1-888-POWER-58 REQUEST A QUOTE [email protected] SHOP ONLINE www.genpowerusa.com 4 LEROY-SOMER 2010.11 / f Installation and maintenance R438 A.V.R. 1 - SUPPLY 1.1 - AREP excitation system For both AREP & PMG excitation systems, the alternator voltage regulator is the R438. With AREP excitation, the R438 electronic AVR is powered by two auxiliary windings which are independent of the voltage match circuit. The first winding has a voltage in proportion to that of the alternator (characteristic Shunt), the second has a voltage in propor- tion to the stator current (compound charac- teristic: Booster effect). The power supply voltage is rectified and filtered before being used by the AVR moni- toring transistor. This principle ensures that regulation is not affected by distortions ge- nerated by the load. 4 x holes Ø 5.8 x 175 x 115 mm 200 mm 140 mm X2 X1 Z2 E+ E- 0V 110 220 380 Z1 T1 T2 T3 T4 T5 T6 Varistor 5+ 6- T7 T8 T9 T10 T11 T12 R 438 F1 ST5 P5 ST11 ST2 ST1 P3 P2 P1 ST4 ST9 Option AREP PMG PMG T.I. Option S1 P1 Ph.1 P2 S2 R731 Option AREP SYSTEM Field Armature 10 Yellow 11 Red 9 Green 12 Black MAIN FIELD Aux. windings Slow fuse 250V 8 A with LAM without LAM Excitation ceiling knee-point: 65 Hz open Response time normal fast Stability Voltage Single- phase detection External potentiometer for adjusting the voltage Quad droop according voltage STATOR : 6 wires (marked T1 to T6) STATOR : 12 wires (marked T1 to T12) in 3-ph. detection ST1 open 3-ph. detection ST3 50Hz 60Hz ST10 13 % LAM 25 % Frequency 3971 en - CALL US TODAY 1-888-POWER-58 REQUEST A QUOTE [email protected] SHOP ONLINE www.genpowerusa.com CALL US TODAY 1-888-POWER-58 REQUEST A QUOTE [email protected] SHOP ONLINE www.genpowerusa.com

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