Nidec Leroy-Somer PLSES Series Installation & Maintenance

Nidec Leroy-Somer PLSES Series Installation & Maintenance

Three-phase aluminium/cast iron/ip23 drip-proof induction motors
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Installation & maintenance
Three-phase induction
motors
LS / LSES, aluminium motors
FLSES, cast iron motors
PLSES, IP23 drip-proof motors
Part number: 4850 en - 2018.11 / f

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Summary of Contents for Nidec Leroy-Somer PLSES Series

  • Page 1 Installation & maintenance Three-phase induction motors LS / LSES, aluminium motors FLSES, cast iron motors PLSES, IP23 drip-proof motors Part number: 4850 en - 2018.11 / f...
  • Page 2 IMPORTANT These symbols appear in this document whenever it is important to take special precautions during installation, operation, maintenance or servicing of the motors. It is essential that electric motors are installed by experienced, qualified and authorized personnel. In accordance with the main requirements of EU Directives, the safety of people, animals and property should be ensured when fitting the motors into machines.
  • Page 3 Dear Customer, You have just acquired a LEROY-SOMER motor. This motor benefits from the experience of one of the largest manufacturers in the world, using state-of-the-art technology in automation, specially selected materials and rigorous quality control. As a result, the regulatory authorities have awarded our motor factories the ISO 9001 - Edition 2015 international certificate.
  • Page 4: Table Of Contents

    CONTENTS INDEX 1 - RECEIPT ............... 5 Adjustment ................8 Alarms - early warning ............12 1.1 - Identification ............5 Assembly ................6 1.2 - Storage ..............6 Balancing................7 2 - ASSEMBLY ............6 Belts..................9 2.1 - Checking the insulation ...........6 Built-in thermal protection ...........12 2.2 - Location - ventilation ..........7 Cable gland.................13 2.3 - Coupling ..............7...
  • Page 5: Receipt

    RECEIPT 1 - RECEIPT On receipt of your motor, check that it has not suffered any damage in transit. If there are obvious signs of knocks, contact the carrier (you may able to claim on their insurance) and after a visual check, turn the motor by hand to detect any malfunction.
  • Page 6: Storage

    ASSEMBLY 1.2 - Storage 2.1 - Checking the insulation Prior to commissioning, machines should be stored in a Before starting the motor, it is advisable to check horizontal position: the insulation between the phases and earth, - Away from humidity: at relative humidity levels greater than and between phases.
  • Page 7: Location - Ventilation

    ASSEMBLY Positioning Prior to commissioning for all motors: The motor must be mounted in the position specified on Rotate the motor at no load (no mechanical load) the order, on a base which is rigid enough to prevent for 2 to 5 minutes, checking that there is no abnormal distortion and vibration.
  • Page 8: Adjustment

    ASSEMBLY Applied Applied to shoulder of shaft to stop ring Balancing Rotating machines are balanced in accordance with standard If there is a second shaft extension, it must only be used for ISO 8821: direct coupling and the same recommendations must be - Half-key when the shaft extension is marked H followed.
  • Page 9: Belts

    ASSEMBLY To perfect this adjustment and at the same time check the concentricity of the two shafts, fit 2 gauges as shown in the Protect all rotating devices before power-up. diagram and slowly turn both shafts. The deviations registered by either shaft will indicate the need for either an axial or radial adjustment if the deviation exceeds 0.05mm.
  • Page 10: Electrical Guidelines

    ASSEMBLY Optional: Standard slide rails (conforming to standard NFC 51-105) These steel slide rails are supplied with tension screws and the 4 nuts and bolts for fixing the motor on the slide rails, but the fixing bolts for the slide rails are not supplied. ØJ Motor Type...
  • Page 11: Capacitors

    ASSEMBLY 2.4.3 - Other control systems 2.4.4 - Permissible starting times and locked rotor times Frequency inverters, flux vector control, etc. Special precautions need to be taken when standard induction motors The starting times must remain within the limits stated below are being used for variable speed control, powered by a on condition that the number of starts per hour is 6 or less.
  • Page 12: Alarms - Early Warning

    ASSEMBLY It must be emphasized that these sensors cannot be used to carry out direct adjustments to the motor operating cycles. Operating Operating Breaking Mounting Type Protection provided principle curve capacity (A) Number required* bimetallic strip, indirectly heated Mounted on control general surveillance operates on opening (0) 1.6 at 250 V...
  • Page 13: Mains Connection

    ASSEMBLY 2.5 - Mains connection If the non-standard position of the cable gland has not been correctly specified on the order, or is no longer suitable, the 2.5.1 - Terminal box symmetrical construction of the terminal box enables it to be turned in any of the 4 directions except for position (2) on Placed as standard on the top of the motor near the drive end, flange-mounted motors (B5).
  • Page 14: Cables: Cross-Section

    ASSEMBLY 2.5.2 - Cross-section of the power supply cables If the most important criterion is the starting torque (or starting time), the voltage drop should be limited to 3% maximum (the The higher the current, the greater the voltage drop in the equivalent of a loss of torque of around 6 to 8%).
  • Page 15: Connection

    ASSEMBLY 2.5.4 - Terminal block wiring diagram 2.5.7 - Connecting the power supply cables to the terminal block All motors are supplied with a wiring diagram in the terminal box*. The cables must be fitted with connectors suitable for the cable The connector links required for coupling can be found inside cross-section and the terminal diameter.
  • Page 16: Routine Maintenance

    ROUTINE MAINTENANCE 3 - ROUTINE MAINTENANCE Condensation drain holes, located at the bottom of the motors (bearing in mind their operating position) are sealed with plugs which must be removed and then replaced every six months (if Checks after start-up they were not replaced, the motor degree of protection would After approximately 50 hours’...
  • Page 17 ROUTINE MAINTENANCE Grease life according to speed of rotation Types of permanently greased bearing 3000 rpm 1500 rpm 1000 rpm No. of Series Type poles N.D.E. D.E. 25°C 40°C 55°C 25°C 40°C 55°C 25°C 40°C 55°C 80 L 6203 CN 6204 C3 ≥40000 ≥40000...
  • Page 18 ROUTINE MAINTENANCE 3.1.3 - Bearings with grease nipples Even in the event of prolonged storage or The bearings are lubricated in the factory downtime, the interval between 2 greasing The end shields are fitted with bearings lubricated by grease operations should never exceed 2 years. nipples such as Tecalemit-Hydraulic M8 x 125.
  • Page 19 ROUTINE MAINTENANCE Greasing intervals in hours Type of bearing for Quantity bearings with grease nipples of grease 3000 rpm 1500 rpm 1000 rpm No. of Series Type poles N.D.E. D.E. 25°C 40°C 55°C 25°C 40°C 55°C 25°C 40°C 55°C 160 M* 2 ; 4 ; 6 22200 11100...
  • Page 20: Bearing Maintenance

    PREVENTIVE MAINTENANCE 3.2 - Bearing maintenance Bearings with grease nipples Always begin by cleaning the waste grease channel 3.2.1 - Checking the bearings If using the type of grease stated on the nameplate, remove the covers and clean the grease nipple heads. As soon as you detect any of the following on the motor: If a different grease from that on the nameplate is being used, - Abnormal noise or vibration...
  • Page 21: Troubleshooting Guide

    TROUBLESHOOTING GUIDE 5 - TROUBLESHOOTING GUIDE Incident Possible cause Remedy Abnormal noise Originating in motor or machine being driven? Uncouple the motor from the equipment being driven and test the motor on its own Noisy motor The cause is mechanical if the noise persists after switching off the power supply, with the drive set to «freewheel»...
  • Page 22: Corrective Maintenance: General

    CORRECTIVE MAINTENANCE: GENERAL 6 - CORRECTIVE MAINTENANCE: - Hot state: Heat the bearing to between 80 and 100 °C: in a GENERAL dryer, an oven or on a heating plate. (A blowtorch or an oil bath must never be used). After dismantling and reassembling a bearing, all the spaces between the seals and labyrinth seals must be filled with First switch off and lock the power supply...
  • Page 23: Position Of Lifting Rings

    POSITION OF LIFTING RINGS 7 - POSITION OF LIFTING RINGS Horizontal position Type e min h min Øt Position of lifting rings for lifting the motor only LSES 100 L/LR/LG (not connected to the machine). LSES 112 M/MR LSES 112 MG/MU Labour regulations stipulate that all loads over 25 kg must be LSES 132 S/SU fitted with lifting devices to facilitate handling.
  • Page 24: Spare Parts

    SPARE PARTS 8 - SPARE PARTS • Vertical position When ordering spare parts, you must indicate the complete motor type, its serial number and the information given on the nameplate (see section 1). Part numbers can be found on the exploded views and their descriptions in the parts list (section 6).
  • Page 25: Dismantling And Reassembly Procedures

    RECYCLING DISMANTLING AND REASSEMBLY PROCEDURES 10 - LS/LSES motors 26 to 35 ......................11 - FLS/FLSES motors 36 to 45 ....................12 - PLS/PLSES motors 46 to 51 ....................Installation and maintenance - Three-phase induction motors 4850 en - 2018.11 / f...
  • Page 26: Ls/Lses Motors

    LS/LSES MOTORS 10 - LS/LSES MOTORS LS/LSES 71 LS/LSES 71 10.1 - LS/LSES 71 to 160 MP/LR motors foot mounted flange mounted (or foot/flange) 10.1.1 - Dismantling - Remove the screws (27) and then take off the cover (13). - Pull out the fan (7) using a hub remover or 2 levers (for example, 2 screwdrivers) diametrically opposed to one another, using the shield (6) for support.
  • Page 27 LS/LSES MOTORS LS/LSES 71 to 160 MP/LR 50 59 IM B3 IM B14 IM B5 LS/LSES 71 to 160 MP/LR Ref. Description Ref. Description Ref. Description Wound stator Drive end shield shaft extension key Circlip 71 a Frame Nameplate Plastic terminal box (< or = frame size 112) 71 b Rotor Fan cover screw...
  • Page 28: 160 M/L/Lu, 180 Mt/Lr Motors

    LS/LSES MOTORS 10.2 - LS/LSES 160 M/L/LU, 180 MT/LR motors 10.2.1 - Dismantling LS/LSES 160 M/L/LU - 180 MT/LR standard bearings - Remove the screws (27) and then take off the cover (13). - Pull out the fan (7) using a hub remover or 2 levers diametrically 6 59 50 30 38 40 39 opposed to one another, using the shield (6) for support.
  • Page 29 LS/LSES MOTORS LS/LSES 160 M/L/LU, 180 MT/LR LS/LSES 160 M/L/LU, 180 MT/LR Ref. Description Ref. Description Ref. Description Wound stator Drive end bearing Drive end shield fixing nut Frame Inner drive end bearing retainer DE shield washer Shaft Snap ring for drive end shaft Non drive end shield fixing screw Rotor Drive end seal...
  • Page 30: Mz Motors

    LS/LSES MOTORS 10.3 - LS/LSES 180 L/LUR, 200 L/LR/LU, 225 ST/MT/MR, 250 MZ motors 10.3.1 - Dismantling LS/LSES 180 L/LUR - 200 L/LR/LU - Remove the screws (27) and then take off the cover (13). 225 ST/MT/MR - 250 MZ - Pull out the fan (7) using a hub remover or 2 levers diametrically standard bearings opposed to one another, using the shield (6) for support.
  • Page 31 LS/LSES MOTORS LS/LSES 180 L/LUR, 200 L/LR/LU, 225 ST/MT/MR, 250 MZ LS/LSES 180 L/LUR, 200 L/LR/LU, 225 ST/MT/MR, 250 MZ Ref. Description Ref. Description Ref. Description Wound stator Lifting ring fixing washer Drive end shield fixing nut Frame Drive end bearing DE shield washer Shaft Inner drive end bearing retainer...
  • Page 32: Sn Motors

    LS/LSES MOTORS 10.4 - LS/LSES 225 MG, 250 ME/MF, 280 SC/MC, 280 SD/MD, 315 SN motors 10.4.1 - Dismantling LS/LSES 225 MG - 250 ME/MF 280 SC/MC/SD/MD - 315 SN - Remove the screws (27), the grease nipple (42) and its extension, standard bearings then take off the cover (13).
  • Page 33 LS/LSES MOTORS LS/LSES 225 MG, 250 ME/MF, 280 SC/MC, 280 SD/MD, 315 SN 27 13 427 533 64 54 53 50 273 63 38 30 645 275 643 629 270 272 40 41 LS/LSES 225 MG, 250 ME/MF, 280 SC/MC, 280 SD/MD, 315 SN Ref.
  • Page 34: 280 Su/Sk/Mk, 315 (Except Sn) Motors

    LS/LSES MOTORS 10.5 - LS/LSES 280 SU/SK/MK, - Mount the shield (5) at the drive end, positioning it on the stator, then mount the fixed valve (34) in the shield bearing 315 (except SN) motors housing. 10.5.1 - Dismantling - Mount the mobile valve (35) by either screwing it or locking it, having carefully installed the seal (39) on the valve.
  • Page 35 LS/LSES MOTORS LS/LSES 280 SU/SK/MK, 315 (except SN) 42 54 LS/LSES 280 SU/SK/MK, 315 (except SN) Ref. Description Ref. Description Ref. Description Wound stator Drive end bearing Inner non drive end bearing retainer Frame Outer drive end bearing retainer NDE weatherproof seal Rotor Inner drive end bearing retainer Non drive end fixed grease valve...
  • Page 36: Fls/Flses Motors

    FLS/FLSES MOTORS 11 - FLS/FLSES MOTORS 11.1 - FLS/FLSES 80 to 132 motors 11.1.1 - Dismantling FLS/FLSES 80 to 132 - Remove the screws (27) and then take off the cover (13). foot mounted - Pull out the fan (7) using a hub remover or 2 levers (for example, 2 screwdrivers) diametrically opposed to one another, using the shield (6) for support.
  • Page 37 FLS/FLSES MOTORS FLS/FLSES 80 to 132 IM B3 IM B14 IM B5 FLS/FLSES 80 to 132 Ref. Description Ref. Description Ref. Description Wound stator Shaft extension key Circlip Frame Nameplate FLSES terminal box Rotor Fan cover screw Terminal block Drive end shield Drive end bearing Set screw Non drive end shield...
  • Page 38: 160, 180 Mr Motors

    FLS/FLSES MOTORS 11.2 - FLS/FLSES 160, 180 MR motors 11.2.1 - Dismantling - Remove the screws (27) and then take off the cover (13). - Pull out the fan (7) using a hub remover or 2 levers diametrically FLS/FLSES 160 - 180 MR opposed to one another, using the shield (6) for support.
  • Page 39 FLS/FLSES MOTORS FLS/FLSES 160, 180 MR 59 629 FLS/FLSES 160, 180 MR Ref. Description Ref. Description Ref. Description Wound stator Fan cover screw Terminal box lid Frame Drive end bearing Cable gland support plate Shaft Inner drive end bearing retainer Drive end shield fixing screw Rotor Snap ring for drive end shaft...
  • Page 40: 180 M/L/Lur, 200 Lu, 225 Mr/Sr Motors

    FLS/FLSES MOTORS 11.3 - FLS/FLSES 180 M/L/LUR, 200 LU, 225 MR/SR motors 11.3.1 - Dismantling - Remove the screws (27) and then take off the cover (13). FLS/FLSES 180 M/L/LUR - 200 LU 225 MR/SR - Pull out the fan (7) using a hub remover or 2 levers diametrically standard bearings opposed to one another, using the shield (6) for support.
  • Page 41 FLS/FLSES MOTORS FLS/FLSES 180 M/L/LUR, 200 LU, 225 MR/SR FLS/FLSES 180 M/L/LUR, 200 LU, 225 MR/SR Ref. Description Ref. Description Ref. Description Wound stator Drive end bearing Cable gland support plate Frame Inner drive end bearing retainer Drive end shield fixing screw Shaft Snap ring for drive end shaft Drive end shield fixing nut...
  • Page 42: 225 M To 280 Motors

    FLS/FLSES MOTORS 11.4 - FLS/FLSES 225 M to 280 motors From now on, we recommend checking at every step that the rotor turns freely by hand before continuing to the next 11.4.1 - Dismantling the NDE shield instruction. - Remove the fixing screws (27) and then take off the cover - Replace the shield fixing screws (270) and (273).
  • Page 43 FLS/FLSES MOTORS FLS/FLSES 225 M to 280 FLS/FLSES 225 M to 280 Ref. Description Ref. Description Ref. Description Wound stator Nameplate Terminal box base seal Frame Fan cover screw Terminal box Rotor Drive end bearing Terminal box lid Drive end shield Inner drive end bearing retainer Terminal box lid fixing screw Non drive end shield...
  • Page 44: 315 To 355 Ld Motors

    FLS/FLSES MOTORS 11.5 - FLS/FLSES 315 to 355 LD motors From now on, we recommend checking at every step that the rotor turns freely by hand before continuing to the next 11.5.1 - Dismantling the NDE shield instruction. - Remove the fixing screws (27) and then take off the cover - Replace the shield fixing screws (270) and (273).
  • Page 45 FLS/FLSES MOTORS FLS/FLSES 315 to 355 LD 12 11 275 273 270 272 FLS/FLSES 315 to 355 LD Ref. Description Ref. Description Ref. Description Wound stator Fan cover screw Stator terminal box Frame Drive end bearing Stator terminal box lid Shaft Inner drive end bearing retainer Cable gland support plate...
  • Page 46: Pls/Plses Motors

    PLS/PLSES MOTORS 12 - PLS/PLSES MOTORS 12.1 - PLS/PLSES 180 LG/LGU PLS/PLSES 180 LG/LGU 200 M/L/LP/LU/LR, 225 MR motors 200 M/L/LP/LU/LR standard bearings 12.1.1 - Dismantling - Remove the screws (27) and grease nipple (64), then take off the cover (13). - Pull out the fan (7) using a hub remover or 2 diametrically opposed levers, using the shield (6) for support, then remove the fan key or pin.
  • Page 47 PLS/PLSES MOTORS PLS/PLSES 180 LG/LGU, 200 M/L/LP/LU/LR, 225 MR PLS/PLSES 180 LG/LGU, 200 M/L/LP/LU/LR, 225 MR Ref. Description Ref. Description Ref. Description Wound stator Non drive end seal Frame Fan cover screw Preloading (wavy) washer Rotor Drive end bearing Grease nipple Drive end shield Inner drive end bearing retainer Terminal box...
  • Page 48: 225 Mg, 250, 280 Sc/Sd/Mc/Md Motors

    PLS/PLSES MOTORS 12.2 - PLS/PLSES 225 MG, 250, - Put the tie rods (14) in place, not forgetting the feet of the protective cover (380), tighten the nuts diagonally without 280 SC/SD/MC/MD motors locking them so that the feet of the protective cover can be 12.2.1 - Dismantling positioned when it is mounted.
  • Page 49 PLS/PLSES MOTORS PLS/PLSES 225 MG, 250, 280 SC/SD/MC/MD PLS/PLSES 225 MG, 250, 280 SC/SD/MC/MD Ref. Description Ref. Description Ref. Description Wound stator Outer drive end bearing retainer Extension for grease nipple Frame Inner drive end bearing retainer Terminal box Rotor Drive end mobile grease valve Terminal box lid Drive end shield...
  • Page 50: 280 Mg, 315 Motors

    PLS/PLSES MOTORS 12.3 - PLS/PLSES 280 MG, 315 motors - Put the tie rods (14) and the feet of the protective cover (380) in place, tighten the nuts diagonally without locking them so 12.3.1 - Dismantling that the feet of the protective cover can be positioned when it is mounted.
  • Page 51 PLS/PLSES MOTORS PLS/PLSES 280 MG, 315 PLS/PLSES 280 MG, 315 Ref. Description Ref. Description Ref. Description Wound stator Outer drive end bearing retainer Grease nipple Frame Inner drive end bearing retainer Extension for grease nipple Rotor Drive end mobile grease valve Terminal box Drive end shield Drive end seal...
  • Page 52 Moteurs Leroy-Somer Headquarter: Boulevard Marcellin Leroy - CS 10015 16915 ANGOULÊME Cedex 9 Limited company with capital of 65,800,512 € RCS Angoulême 338 567 258 www.leroy-somer.com...

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