MTR-002-1AB18 Manual
Contents
1. Ist Ed Rev A 11 2007 IronHorse General Purpose Motors User Manual 4 7 REFERENCE In This Chapter Using lronHorse Motors with AC Drives 5 2 Double Punched Motors 5 3 F1 and F2 Mounting 5 4 Junction Box Dimensions 5 5 Minimum Sheave Diameters 5 6 Decibel Levels 5 7 Shipping Crate Dimensions and Weights 5 8 Chapter 5 Reference Using lronHorse Motors with AC Drives IronHorse general purpose motors can be controlled by across the line starters such as contactors and manual motor starters Under certain circumstances it can be more desirable to control a three phase IronHorse motor with an AC drive Single phase AC motors cannot be controlled by typical AC drives The advantages of using an AC drive include Lower inrush current at motor startup Ability to change motor speed at any time Greater efficiency in some applications Fan and Pump applications can use an AC drive to provide motor flow control by varying the motor speed Solid state power delivery meaning minimum maintenance There are a few considerations to take into account when an AC drive is chosen for motor control Fan cooled motors are designed to provide sufficient insulation cooling when the motor is running at the rated RPM The cooling abilit2. ORANGE T3 INS YELLOW T4 LINE2 5 1 AMB 40 C BLACK TS YELLOW T4 LINE2 FR 56C INS CL ROTATION CW OPE TO REVERSE EITHER VOLTAGE INTERCHANGE RED amp BLACK LEADS Acceptable for Field Wiring WWW AUTOMATIONDIRECT COM ENCL FL AMPS 6 6 3 3 Motor Starter Information IronHorse general purpose motors can be controlled by across the line starters such as contactors and manual motor starters Under certain circumstances three phase IronHorse motors can also be controlled by AC drives For more information about using AC drives with IronHorse motors see Chapter 5 Use the following chart to help determine the appropriate across the line starter Frame Size Starting System Information Number of Internal Internal Lead Internal Leads Lead Size Length Voltage Winding Type 56C 19 6 a 115 208 230 56C 30 N A 10 5 8 208 230 460 13 3 4 Wye 181 Ed Rev A 11 2007 Wye Delta IronHorse General Purpose Motors User Manual 2 9 Chapter 2 Mounting amp Initial Startup Ez MM Locked Rotor Amps All electrical components used in an IronHorse motor installation must be able to handle the maximum current draw of the motor When using a typical across the line starter current is highest when power is first applied to the motor This is commonly referred t
3. 127 63 5 20 Seconds 10 0 Code N 9 5 Code M 9 3 Code L 8 3 Code 7 8 Code 6 8 Code H 200 100 13 Seconds 8 1 Code 280 140 400 200 20 Seconds 7 9 Code J 8 4 Code 440 220 16 Seconds 7 8 Code H 520 260 720 360 880 440 870 435 1086 543 20 Seconds 7 7 Code H 7 7 CodeJ 7 7 Code H 6 2 Code G 1450 725 1815 908 2170 1085 2900 1450 15 Seconds 6 3 Code G 6 6 Code G 6 7 Code G 6 5 Code G MTC 250 3D18 MTC 300 3D18 Ist Ed A 11 2007 IronHorse General Purpose Motors User Manual 1 9 85 185 2017 2351 20 Seconds 7 2 Code H Code G Chapter 1 Getting Started Receiving and Inspection Unpacking After receiving an IronHorse motor please check for the following Open the motor packaging and inspect for damage during shipment Make sure the part number indicated on the motor nameplate corresponds with the part number on your order For all 56C framed motors make sure that the shipment contains the motor the removable mounting foot and six mounting foot bolts Read the enclosed Product Advisory Motor Nameplate gt 0 HN 1 j Ero M
4. 0 93 25 C 77 F 0 88 30 C 86 F 0 82 o 9 1 5 gt 6 5 E 40 C 104 F 0 72 50 C 122 F 60 140 F Example 100 hp 60 C and 2000 Meters 100 0 64 156 hp The motor should be a 200 hp motor Coupling Alignment Correct coupling alignment is very important to the life of the motor Coupling misalignment is the major cause of motor bearing failure In belt driven applications pulleys should be installed correctly Belt tension alignment and wear should be checked at installation and at regular maintenance intervals Install motor couplings per the manufacturers instructions Whenever possible direct couple or flange mount IronHorse motors in their application Doing so can extend the bearing life greatly AutomationDirect offers C face mounting kits for all T frame IronHorse motors For a complete list of mounting kits see Chapter 4 2 8 IronHorse General Purpose Motors User Manual Chapter 2 Mounting amp Initial Startup ee Tr er Motor Nameplate amp Starter Information Below is an example of the typical IronHorse motor nameplate f GENERAL PURPOSE IRONHORSE INDUSTRIAL MOTOR HP 3 4 Model MTR P75 1AB18 LOW VOLT HIGH VOLT BLUE TI 4 BLUE TI LINEI RPM 1725 0707121505 ORANGE T3 HLINEI RED T8 PH 1 Hz 60 Duty CONT RED T8 WHITE T2 y VOLT 115 230 S F 1 15 WHITE T2
5. 2 9 2 10 2 11 4 2 4 3 4 5 Table of Contents EM MM Chapter 5 Reference Using IronHorse Motors with AC Drives 5 2 Double Punched Motors 5 3 F1 and F2 Mounting 5 4 Junction Box Dimensions 5 5 Minimum Sheave Diameters 5 6 Decibel Levels 5 7 Shipping Crate Dimensions and Weights 5 8 VI IronHorse General Purpose Motors User Manual GETTING STARTED In This Chapter Manual AT 1 2 Available Models 1 3 Receiving and Inspection 1 10 erriren Besen 1 11 Long Term Storage 1 11 MP 1 11 Chapter 1 Getting Started Manual Overview Overview of this Publication The IronHorse General Purpose AC Motor User Manual describes the installation maintenance and use of all IronHorse General Purpose Motors Who Should Read This Manual This manual contains important information for those who will install maintain use and or resell any of the IronHorse motors Technical Support By Telephone 770 844 4200 Mon Fri 9 00 a m 6 00 p m E T On the Web support automationdirect com Our technical support group is glad to work with you in answering your questions If you cannot find the solution to your particular application or if for any reason you need additional technical assistance please call technical support at 770 844 4200 We are available weekdays from 9 00 a m to 6 00 p m Eastern Time We also en
6. Polyurea grease 3 2 IronHorse General Purpose Motors User Manual Chapter 3 Preventative Ongoing Maintenance Bearing Size Information IronHorse motors use premium SKF brand bearings Below is a bearing size chart listing the type of SKF bearings used in each frame size of IronHorse motors The bearing types are also listed on the motor nameplate Frame Size Bearing Size Chart Drive End Bearing SKF Type Opposite Drive End Bearing SKF Type 56C 203 203 143T 6205 ZZ 6205 ZZ 6306 ZZ 6205 ZZ 6308 ZZ 6308 ZZ 6309 6209 6311 6309 6312 6311 6313 6312 NU316 NU318 NU319 Ist Ed Rev A 11 2007 NU320 IronHorse General Purpose Motors User Manual 3 3 ACCESSORIES In This Chapter Capacitors and Centrifugal Switches 4 2 aluo RES a me 4 3 STABLE SIGE BASES usarse ees 4 5 Chapter 4 Accessories Capacitors and Centrifugal Switches Single phase motors use capacitors to provide starting torque when power is first applied to the motor When the motor begins to turn the start capacitor is no longer need and is taken out of the circuit by a centrifugal switch In addition to the start capacitor 1 1 2 and 2 hp IronHorse motors have run capacitors to allow the motor to develop higher running torque and greater efficiency Run capacitors also help improve the motor power factor
7. Safety Information 2 2 Motor DIMENSIONS vos o aired LE rer 2 3 Terminal 5 2 6 Motor Mounting 2 7 Proper Installation Conditions 2 8 Coupling Alignment 2 8 Motor Nameplate amp Starter Information 2 9 Inspection Before Startup 2 10 Initial Startup Inspection 2 11 Chapter 2 Mounting amp Initial Startup Safety Information DANGER HAZARDOUS VOLTAGE Before making any connection to the motor disconnect all power to the motor written consent of AutomationDirect com Inc will void all warranties may result in 1 WARNING Any electrical or mechanical modification to this equipment without prior a safety hazard and may void the CSAs listing WARNING To avoid physical injury keep your hands and clothing away from all moving parts Wiring Notes PLEASE READ PRIOR TO INSTALLATION 1 During installation follow all local electrical construction and safety codes for the country in which the motor is to be installed 2 Make sure the appropriate protective devices circuit breaker or fuses are connected between the power source and motor controller 3 Make sure that the leads are connected correctly and the motor is properly grounded Ground resistance should not exceed 0 1 Q 4 Use ground leads that comply with AWG MCM
8. Single Phase Motor Accessories Part Number Accessory Type Capacitance Rated Voltage Applicable Motor Number Motor HP MTA CAP 01 MTA CAP 02 MTA CAP 03 start capacitor 200 125 MTR P33 1AB18 1 3 250 125 MTR P50 1AB18 MTR P75 1AB18 1 2 3 4 125 MTR 001 1AB18 MTR 1P5 1AB18 MTR 002 1AB18 MTR 1P5 1AB18 MTR 002 1AB18 MTA CAP 04 MTA CAP 05 MTA CAP 06 MTA CAP 07 MTA CSW 01 165 165 450 450 250 run capacitor centrifugal switch all IronHorse single Y Run Capacitor Centrifugal Switch 4 2 IronHorse General Purpose Motors User Manual Chapter 4 Accessories C Flange Kits Any IronHorse T frame cast iron motor can be converted to C face mount by using a cast iron C flange kit These kits are field installable and include the C faces and mounting bolts Three Phase T Frame Motor C Flange Kits Shipping Part Number Fits Frame Fits Motor Number Motor HP Weight Ib 143T MTC 001 3BD18 1 MTA CFACE 140TC 145T MTC 1P5 3BD18 1 1 2 145T MTC 002 3BD18 2 182T MTC 003 3BD18 3 MTA CFACE 180TC 184T MTC 005 3BD18 5 213T MTC 7P5 3BD18 MTA CFACE 210TC 215T MTC 010 3BD18 10 254T MTC 15 3BD18 15 MTA CFACE 250TC 256T MTC 20 3BD18 20 284T MTC 25 3BD18 25 280 286T MTC 30 3BD18 30 324T MTC 40 3BD18 40 MTA CFACE 320TC 326T MTC 50 3BD18 50 364T MTC 60 3BD18 60 MTA CFACE 360TC 3
9. Y Low Voltage High Voltage 4 50 50 010 se 6 25 hp 200 hp models 12 Lead 208 230 460 VAC Low Voltage High Voltage 6 4 5 4 5 6 7 8 9 4 ib 120 100 11 120 100 11 1 2 3 4 4 L1 12 L1 L2 L3 1 3 hp 2hp 30 models 9 Lead 208 230 460 VAC Low Voltage BLUE T1 LINE 1 BROWN T7 WHITE T2 LINE 2 RED T8 ORANGE T3 3 YEL BLK T9 BLACK T5 YELLOW 4 RED T8 INS BLACK ns GRAY T6 GRAY T6 YEL BLK EE INS 7 5 hp 20 hp models 9 Lead 208 230 460 VAC AA Low Voltage High Voltage 1 444 29 q L2 High Voltage BLUE T1 LINE 1 WHITE T2 LINE 2 ORANGE T3 LINE 3 YELLOW T4 BROWN T7 INS L1 L2 250 hp 300 hp models 6 Lead 460 VAC High Voltage L1 12 2 6 IronHorse General Purpose Motors User Manual Chapter 2 Mounting amp Initial Startup Motor Mounting IronHorse motors should be properly mounted to prevent premature motor and or bearing failure When necessary use motor shims to level the motor at all mounting bolt holes Use proper diameter bolts of the highest grade material available for the application Use the chart below to select the correct size bolt for each frame size A mounted motor must operate vibration free Each motor installation should be checked for potential vibration situations On motors 100 hp and up it is recommended that foundation studs be used to se
10. standards and keep them as short as possible 5 Make sure that the power source is capable of supplying the correct voltage and required current to the motor 9 Do not attach or remove wiring when power is applied to the motor Applicable Codes IronHorse motors are CSAs listed and therefore comply with the requirements of the National Electrical Code NEC and the Canadian Electrical Code CEC Installation intended to meet the CSAs requirements must follow the instructions provided in the Wiring Notes as a minimum standard Follow all local codes that exceed 5 requirements Refer to the technical data on the motor nameplate for electrical and performance data 2 2 IronHorse General Purpose Motors User Manual Chapter 2 Mounting amp Initial Startup Motor Dimensions 56C Frame Single Phase 2 85 323 124 all except 1 1 5 amp 2 hp motors C 13 1 hp MTR 001 1AB18 13 8 1 5hp MTR 1P5 1AB18 C 14 6 2hp MTR 002 1AB18 56C Frame Three Phase 2 85 323 0 16 ms 0 19 0 34 SLOT 3 275 188 Pm 6 5 C C 12 2 all except 1 5 amp 2 hp motors 12 6 1 5hp MTR 1P5 3BD18 C 13 8 2hp MTR 002 3BD18 6 9 FW i 1 582hpN motors only UNITS 5 8 19 all
11. 0 0 80 0 143 Maximum Constant HP RPM is for direct coupled loads Ist Ed Rev A 11 2007 IronHorse General Purpose Motors User Manual 1 5 Chapter 1 Getting Started Cast Iron T Frame M IronHorse 1800 RPM industrial duty cast iron frame motors are available from 1 hp to 300 hp with models have a TEFC frame and full length mounting foot Motor Specifications T Frame Three Phase Motors Part Number NEMA Frame Mounting Service Factor F L Amps 230V 460V Approx Shipping Weight Ib F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F1 F1 F1 F1 F1 F1 3 0 1 5 4 2 2 1 5 4 2 7 7 72 3 86 11 8 5 9 18 6 9 3 24 8 12 4 35 4 17 7 47 6 23 8 56 4 28 2 67 2 33 6 93 0 46 5 114 6 57 3 139 4 69 7 172 8 86 4 230 115 274 137 326 163 446 223 MTC 001 3BD18 1 MTC 1P5 3BD18 1 5 MTC 002 3BD18 2 MTC 003 3BD18 3 MTC 005 3BD18 5 MTC 7P5 3BD18 7 5 MTC 010 3BD18 10 MTC 015 3BD18 15 020 38018 20 MTC 025 3BD18 25 MTC 030 3BD18 30 MTC 040 3BD18 40 MTC 050 3BD18 22 50 MTC 060 3BD18 72 60 MTC 075 3BD18 75 MTC 100 3BD18 100 MTC 125 3BD18 2 125 MTC 150 3BD18 22 150 MTC 200 3BD18 200 250 3018 72 250 449T F1 47282 2754 300 3018 02 3002 449T Fl 2 334 2966 Note Please review the Auto
12. 00 MTC 020 3BD18 4200 MTC 025 3BD18 4200 E 3 45 MTC 030 3BD18 4200 j 3 941 MTC 040 3BD18 3600 6 348 MTC 050 3BD18 444 3600 6 996 MTC 060 3BD18 483 3600 3 400 MTC 075 3BD18 530 3600 3 700 MTC 100 3BD18 296 858 2800 9 200 MTC 125 3BD18 355 888 2800 9 380 MTC 150 3BD18 150 433 1083 2800 11 220 MTC 200 3BD18 200 590 1652 2800 f 15 100 Part Number MTC 250 3D18 250 728 2402 2800 86 000 MTC 300 3D18 300 864 2817 2800 105 000 Maximum Constant HP RPM is for direct coupled loads 1 8 IronHorse General Purpose Motors User Manual Chapter 1 Getting Started Performance Data T Frame Three Phase Motors cont 460 Volt except as indicated Part Number Temperature Rise Full Load Locked Rotor Amps 230V 460V Max Time Locked Rotor Hot IL IN MTC 001 3BD18 MTC 1P5 3BD18 MTC 002 3BD18 MTC 003 3BD18 MTC 005 3BD18 MTC 7P5 3BD18 MTC 010 3BD18 MTC 015 3BD18 MTC 020 3BD18 MTC 025 3BD18 MTC 030 3BD18 MTC 040 3BD18 MTC 050 3BD18 MTC 060 3BD18 MTC 075 3BD18 MTC 100 3BD18 MTC 125 3BD18 MTC 150 3BD18 MTC 200 3BD18 80 C 176 F 30 0 15 0 40 0 20 0 50 0 25 0 64 0 32 0 92 0 46 0
13. 5 3BD18 28 14 MTR 001 3BD18 230 460 w cast 3 6 1 8 aluminum MTR 1P5 3BD18 1 1 2 and bell 4 8 2 4 MTR 002 3BD18 2 6 0 3 0 Note Please review the AutomationDirect Terms amp Conditions for warranty and service on this product Part Number Voltage Housing Performance Data Three Phase 56C Frame Motors 460V data except as indicated Minimum Current O 230V 460V Part Speed rpm Amps Numb nd CT VT NoLoad Full Load otor MTR P33 3BD18 0 53 0 27 1 6 0 8 8 4 MTR P50 3BD18 0 67 0 33 2 0 1 0 12 6 MTR P75 3BD18 0 93 0 47 2 8 1 4 18 9 MTR 001 3BD18 1 2 0 6 3 6 1 8 24 12 MTR 1P5 3BD18 1 53 0 77 4 8 2 4 36 18 MTR 002 3BD18 2 0 1 0 6 0 3 0 48 24 1 4 IronHorse General Purpose Motors User Manual Chapter 1 Getting Started Performance Data Three Phase 56C Frame Motors cont 460V data except as indicated Torque lb ft FL FL Rotor Speed rpm Efficiency Power Inertia CHP Safe 96 Factor Ib ft Part HP Number Full Locked Break Load Rotor down MTR P33 3BD18 13 102 2 55 2 81 67 0 0 70 0 058 MTR P50 3BD18 1 2 1 52 3 80 4 18 69 0 0 72 0 068 MTR P75 3BD18 3 4 229 573 6 30 71 0 0 74 0 075 MTR 001 3BD18 1 3 02 7 55 8 31 73 0 0 76 0 086 MTR 1P5 3BD18 1 1 2 457 1028 11 43 75 0 0 78 0 108 MTR 002 3BD18 2 6 09 13 70 1523 77
14. 65T MTC 75 3BD18 75 400 405 MTC 100 3BD18 444T MTC 125 3BD18 MTA CFACE 444TC 445 MTC 150 3BD18 447 445 71 MTC 200 3BD18 MTC 250 3D18 T Frame C Flange Kit quickly and inexpensively install C Face kits Visit the EASA website at www easa com N Authorized EASA service centers are equipped with the necessary equipment to to find the nearest authorized service center Ist Ed Rev 11 2007 IronHorse General Purpose Motors User Manual 4 3 Chapter 4 Accessories Part Number Frame Type 140 143T 145T 180 1821 184 210 213T 215T MTA CFACE 250TC 254T 256T 280 284 286T MTA CFACE 320TC 324T 3261 MTA CFACE 360TC 364T 365T MTA CFACE 400TC 405T MTA CFACE 444TC 444T 445T MTA CFACE 447TC 445 71 449 449T 4 4 IronHorse General Purpose Motors User Manual Chapter 4 Accessories STABLE Slide Bases AutomationDirect offers STABLE AC motor slide bases for mounting most AC motor brands with frame sizes f
15. C 250 3D18 MTC 300 3D18 IronHorse General Purpose Motors User Manual 4 5 Chapter 4 Accessories L 4 6 5 Wxxxx g gt gt EQ OE F 2 ats X3 3M HN P In ag es F O gt o gt e 1 sal 1252 bd 2 ZM 2 kei PRE E kimm n 5 mon W182T W449T Motor Slide Base Dimensions W182T W215T bases have one piece top plates similar to W56 W145T CN K mm 56 143T 145T 182T 184T 213T 215T 254T 256T 284T 286T 324T 326T 364T 365T 404T 405T IronHorse General Purpose Motors User Manual Chapter 4 Accessories Dimensions inches except as noted STABLE Motor Slide Bases cont MTA BASE Wxxxx 56 5 16 x 1 143T 5 16 x 1 145T 5 16 x 1 182T 3 8 x 1 3 4 184T 3 8 x 1 3 4 213T 3 8 x 1 3 4 215T 3 8 x 1 3 4 254T 1 2 x 1 3 4 256T 1 2 x 1 3 4 284T 12x2 286T 12 x2 324T 5 8 x 2 1 2 326T 5 8 x 2 1 2 364T 5 8 x 2 1 2 365T 5 8 x 2 1 2 404T 3 4 x 3 3 4 x 3 3 4 x 3 3 4 x 3 3 4 x 3 1 2 3 4 x 3 1 2 M
16. D18 MTC 015 3BD18 MTC 020 3BD18 MTC 025 3BD18 MTC 030 3BD18 MTC 040 3BD18 MTC 050 3BD18 MTC 060 3BD18 MTC 075 3BD18 MTC 100 3BD18 MTC 125 3BD18 MTC 150 3BD18 MTC 200 3BD18 MTC 250 3D18 MTC 300 3D18 1st Ed Rev A 11 2007 3 0 1 5 1 9 0 95 4 2 2 1 2 44 1 22 5 4 2 7 2 76 1 38 7 72 3 86 3 74 1 87 11 8 5 9 5 1 2 55 18 6 9 3 8 98 4 49 24 8 12 4 13 0 6 5 35 4 17 7 15 6 7 8 47 6 23 8 19 0 9 5 56 4 28 2 24 0 12 0 67 2 33 6 27 0 13 5 93 0 46 5 35 0 17 5 114 6 57 3 38 6 19 3 139 4 69 7 48 0 24 0 172 8 86 4 59 2 29 6 230 115 72 0 36 0 274 137 82 0 41 0 326 163 97 6 48 8 446 223 140 70 0 282 85 6 334 96 6 IronHorse General Purpose Motors User Manual 1 7 Chapter 1 Getting Started Performance Data T Frame Three Phase Motors con t 460 Volt except as indicated Maximum Speed rpm Efficiency Full Load Breakdown CHP Safe 90 Factor MTC 001 3BD18 3 00 10 50 5400 82 5 MTC 1P5 3BD18 1 441 14 11 5400 MTC 002 3BD18 17 55 5400 003 38 18 29 93 5400 MTC 005 3BD18 5 46 8 5400 MTC 7P5 3BD18 7 5400 MTC 010 3BD18 4200 MTC 015 3BD18 42
17. WAUTOMATIONDIRECT IRONHORSE General Purpose AC Motors Manual Number IH USER M X WARNING Thank you for purchasing automation equipment from Automationdirect com doing business as AutomationDirect We want your new automation equipment to operate safely Anyone who installs or uses this equipment should read this publication and any other relevant publications before installing or operating the equipment To minimize the risk of potential safety problems you should follow all applicable local and national codes that regulate the installation and operation of your equipment These codes vary from area to area and usually change with time It is your responsibility to determine which codes should be followed and to verify that the equipment installation and operation is in compliance with the latest revision of these codes At a minimum you should follow all applicable sections of the National Fire Code National Electrical Code and the codes of the National Electrical Manufacturer s Association NEMA There may be local regulatory or government offices that can also help determine which codes and standards are necessary for safe installation and operation Equipment damage or serious injury to personnel can result from the failure to follow all applicable codes and standards We do not guarantee the products described in this publication are suitable for your particular application nor do we assume any responsibili
18. antie expresse ou implicite d aptitude l emploi en ce qui a trait aux activit s risque lev Pour des renseignements additionnels touchant la garantie et la s curit veuillez consulter la section Modalit s et conditions de notre documentation Si vous avez des questions au sujet de l installation ou du fonctionnement de cet quipement ou encore si vous avez besoin de renseignements suppl mentaires n h sitez pas nous t l phoner au 770 844 4200 Cette publication s appuie sur l information qui tait disponible au moment de l impression la soci t AutomationDirect nous nous efforcons constamment d am liorer nos produits et services C est pourquoi nous nous r servons le droit d apporter des modifications aux produits ou aux publications en tout temps sans pr avis ni quelque obligation que ce soit La pr sente publication peut aussi porter sur des caract ristiques susceptibles de ne pas tre offertes dans certaines versions r vis es du produit Marques de commerce La pr sente publication peut contenir des r f rences des produits fabriqu s ou offerts par d autres entreprises Les d signations des produits et des entreprises peuvent tre des marques de commerce et appartiennent exclusivement leurs propri taires respectifs AutomationDirect nie tout int r t dans les autres marques et d signations Copyright 2007 Automationdirect com Incorporated Tous droits r serv s Nulle partie de ce manuel
19. courage you to visit our web site where you can find technical and non technical information about our products and our company Visit us at www automationdirect com Special Symbols When you see the notepad icon in the left hand margin the paragraph to its immediate right will be a special note its immediate right will be a WARNING This information could prevent injury loss of When you see the exclamation mark icon in the left hand margin the paragraph to property or even death in extreme cases 1 2 IronHorse General Purpose Motors User Manual Chapter 1 Getting Started Available Models Single Phase Motors Features and Specifications Rolled Steel 56C Frame IronHorse single phase 56C frame motors are available from 1 3 hp to 2 hp models have a TEFC rolled steel frame cast aluminum end bell and removable mounting bases All motors are NEMA B design Motor Specifications Single Phase 56C Frame Motors Part Number HP Service Factor F L Amps 115V 230V Approx Weight Ibs MTR P33 1AB18 1 3 MTR P50 1AB18 1 2 MTR P75 1AB18 3 4 MTR 001 1AB18 1 MTR 1P5 1AB18 1 1 2 MTR 002 1AB18 2 115 208 230 6 6 3 3 26 8 8 4 4 28 11 0 5 5 32 13 6 6 8 38 15 2 7 6 45 20 0 10 0 51 Note Please review the AutomationDirect Terms amp Conditions for warra
20. cure the motor or slide base Base shims should also be used when necessary for level mounting Motor Mounting Bolt Sizes Minimum Minimum Bolt Useable Exposed Diameter Thread Length Anchor Length A B 69 STABLE Slide Bases AutomationDirect offers STABLE slide bases for simple mounting of any NEMA standard frame motor STABLE slide bases are manufactured from heavy duty steel and allow motor position adjustment when mounting any NEMA framed motor See Chapter 4 for complete details Ist Ed A 11 2007 IronHorse General Purpose Motors User Manual 2 7 Chapter 2 Mounting amp Initial Startup Proper Installation Conditions Care should be taken to make sure that an IronHorse motor is mounted at least thirty inches from a wall or structure that would prevent proper ventilation of the motor The installation area should be free of dust and smoke particles Any air contaminate could inhibit proper operation of the motor fan If an IronHorse motor is to be installed in a high altitude or in a low temperature location use the Altitude Ambient Temperature Derating chart below for proper motor sizing Altitude Ambient Temperature Derating Chart Altitude Meters Feet Above Sea Level 1000 1500 2000 2500 3000 3500 4000 3281 4921 6562 8202 9842 11 483 13 123 10 C 50 F 1 50 15 C 59 F 0 99 20 C 68 F
21. ded Long Term Storage The following preventative measures should be taken when storing lronHorse motors for a long period of time 1 Store motors in a controller temperature dry atmosphere free of excess dirt dust and airborne particles 2 Rotate the motor shaft every sixty days to prevent hardening of the bearing grease 3 Warehoused motors should have the bearing grease purged and replaced every six months Use only Exxon POLYREX9 EM Polyurea grease Warranty IronHorse motors carry a two year warranty from the date of invoice All warranty issues must first be evaluated by AutomationDirect technical support services For motors 40 hp and smaller valid warranty claims will be resolved by product replacement Motors 50 hp and larger must be evaluated by an authorized Electrical Apparatus Service Association EASA service center Valid warranty claims will be resolved by repair or replacement at the discretion of AutomationDirect See AutomationDirect Terms and Conditions in our current catalog or online at http www automationdirect com static specs adpolicy pdf for complete details Authorized EASA service centers are available nationwide Visit the EASA website at www easa com to find the nearest authorized service center These shops may also be able to assist with non warranty service Ist Ed Rev A 11 2007 IronHorse General Purpose Motors User Manual 1 11 MOUNTING amp INITIAL STARTUP In This Chapter
22. demarked and are the sole property of their respective owners AutomationDirect disclaims any proprietary interest in the marks and names of others Copyright 2007 Automationdirect com Incorporated Rights Reserved No part of this manual shall be copied reproduced or transmitted in any way without the prior written consent of Automationdirect com Incorporated AutomationDirect retains the exclusive rights to all information included in this document M AVERTISSE Nous vous remercions d avoir achet l quipement d automatisation de Automationdirect com M faisant des affaires comme AutomationDirect Nous tenons ce que votre nouvel quipement d automatisation fonctionne en toute s curit Toute personne qui installe ou utilise cet quipement doit lire la pr sente publication et toutes les autres publications pertinentes avant de l installer ou de l utiliser Afin de r duire au minimum le risque d ventuels probl mes de s curit vous devez respecter tous les codes locaux et nationaux applicables r gissant l installation et le fonctionnement de votre quipement Ces codes diff rent d une r gion l autre et habituellement voluent au fil du temps Il vous incombe de d terminer les codes respecter et de vous assurer que l quipement l installation et le fonctionnement sont conformes aux exigences de la version la plus r cente de ces codes Vous devez tout le moins respecter toutes les secti
23. duction of 5 1 d Mounting of sheave on motor according to sheave manufacturers instructions e Center to center distance between sheaves approximately equal to the diameter of the larger sheave f Calculations covered by the standards listed notes 2 amp 3 below 2 As covered by IP 20 Specifications for Drives Using Classical V Belts and Sheaves Go to www mpta org and www rma org for details 3 As covered by IP 22 Specifications for Drives Using Narrow V Belts and Sheaves Go to www mpta org and www rma org for details 5 6 IronHorse General Purpose Motors User Manual Chapter 5 Reference Decibel Levels The decibel sound level of an IronHorse motor should be measured after initial startup after 30 days and after six months of use Decibel levels should remain fairly consistent and can be an indication of misalignment and premature bearing wear If the measured decibel level for your IronHorse model exceeds the value listed below by more than 1096 contact AutomationDirect or a local motor service technician found at www easa com Average T frame Decibel Levels Frame Size Noise Level Lw dB A 143T 64 0 68 0 68 8 182T 74 0 184T 73 0 213T 78 4 215T 74 3 254 74 6 256 74 0 284 75 0 286 76 1 324 76 4 326 77 0 364 77 3651 78 0 4051 78 1 78 3 79 4 79 4 81 0 81 4 145T Ist Ed Rev A 11 2007 IronHorse G
24. eneral Purpose Motors User Manual 5 7 Chapter 5 Reference Shipping Crate Dimensions and Weights Nominal Shipping Crate Dimensions and Weights Frame Size Weight Ibs Width x Depth x Height 26 23 28 24 32 26 38 29 45 33 51 42 58 64 14x11x17 68 15 11 10 17 11 10 16 14 20 18 16 25 31 23 22 33 x 24 x 24 36 x 26 x 25 39 x 28 x 27 100 44 x 32 x 30 125 150 47 x 33 x 32 200 250 300 63 x 33 x 37 Notes 1 Single phase model Three phase model 5 8 IronHorse General Purpose Motors User Manual
25. except 1 5 amp 2 hp motors L 8 5 1 5 amp 2 hp motors MTR xxx 1AB18 IronHorse Motors 6 9 UNITS INCHES MTR xxx 3BD18 IronHorse Motors Ist Ed Rev A 11 2007 IronHorse General Purpose Motors User Manual 2 3 Chapter 2 Mounting amp Initial Startup T Frame Three Phase Industrial Duty Motors au H hole Various frame sizes have 2 3 or 4 F1 mounting shown mounting holes per mounting foot Some frame sizes are F1 F2 convertible NEMA Part Number HP Frame MTC 001 3BD18 1 143T MTC 1P5 3BD18 1 1 2 T 3 4 MTC 002 3BD18 2 MTC 003 3BD18 3 182T MTC 005 3BD18 5 184T MTC 7P5 3BD18 7 12 213 MTC 010 3BD18 10 215T MTC 015 3BD18 15 254T MTC 020 3BD18 20 256T MTC 025 3BD18 25 284T MTC 030 3BD18 30 286T MTC 040 3BD18 40 324T MTC 050 3BD18 50 326 MTC 060 3BD18 60 3641 MTC 075 3BD18 75 365T MTC 100 3BD18 100 405T 3 NPT MTC 125 3BD18 125 444T MTC 150 3BD18 150 445T 2x3 NPT MTC 200 3BD18 200 445 7T MTC 250 3D18 250 MTC 300 3D18 300 AA 1 NPT 1 NPT 1 5 NPT 1 5 NPT 2 NPT 3 NPT 449T 21 3 2x3 NPT AA dimension is conduit fi
26. ft maximum cable length between the drive and motor A To avoid overheating the AC Drive carrier frequency must be set at or below 6Khz 5 2 IronHorse General Purpose Motors User Manual Chapter 5 Reference Double Punched Motors Several IronHorse motor models have mounting feet that are double punched so that larger frame motors can be mounted using the same dimensions of different size frame motors This can be helpful when replacing a motor with a different frame size See chapter 2 for complete motor dimensions Motor Mounting Bolt Sizes Punched for Additional Frame Frame Size Double Punched Size 143T 143T 182T 213T 254T 284T 324T 364T 404T 444 445 Ist Ed Rev A 11 2007 IronHorse General Purpose Motors User Manual 5 3 Chapter 5 Reference F1 and F2 Mounting F1 and F2 mounting refers to the location of the junction box on an AC motor Several models of IronHorse motors can be converted from F1 to F2 mounting Drive End F1 Mounting F2 Mounting F1 to F2 Mounting Conversion Frame Size Ability to be Converted 56 No 143T Yes 145T Yes 182T Yes 184T Yes 213T Yes 215T Yes 254T Yes 256T Yes 284T No 286T No 324T No 326T 364 365 405 444 445 7 449 minimize the potential of damage to any
27. hedule should be developed for every IronHorse motor installation based on the individual application Motors installed in a harsh running environment should be serviced more frequently than those installed in a clean climate controlled area The following list should be used as a basis for creating the routine maintenance schedule 1 Clean the motor housing using a brush soft cloth or compressed air Pay special attention to the cooling ribs on cast iron motors Remove any dirt and dust from the fan and fan cover vents 2 Frequently monitor the bearing temperature on the motor It should not exceed 60 140 F 2 Lubricate the bearings using the schedule shown below 3 Have the insulation checked periodically by and authorized motor specialist 4 Purge the bearing grease at least every six months on all motors with serviceable bearings Replace both the drive end and opposite drive end bearings at the end of their recommended running hour life Motors used in belt drive applications have a bearing life expectancy of 50 000 hours Direct coupled application motors have a bearing life expectancy of 100 000 hours Bearing Lubrication Schedule Drive End Opposite Drive Bearing End Bearing Lubricationo Lubrication Grease Amount Grease Amounto 9000 0 46 oz 0 29 oz 300 Notes 1 Motors from 1 3 hp to 10 hp have sealed bearings 2 Running time in hours 3 Use only Exxon POLYREX EM
28. internal component use caution when pulling the rotor from the frame when converting an IronHorse motor from F1 to F2 mounting Authorized EASA service centers are equipped with the necessary equipment to quickly and inexpensively convert motor mounting Visit the EASA website at www easa com to find the nearest authorized service center 5 4 IronHorse General Purpose Motors User Manual Chapter 5 Reference Junction Box Dimensions Junction Box Dimensions XD MEN AA Conduit Hole NPT 1 3 4 3 2 openings Ist Ed Rev A 11 2007 IronHorse General Purpose Motors User Manual 5 5 Chapter 5 Reference Minimum Sheave Diameters The table below illustrates the minimum practical V belt sheave diameter that can be used with each frame size IronHorse motor Minimum Sheave Diameters V Belt Sheave Conventional Narrow A B C D and E 5V and 8V Minimum Pitch Diameter Minimum Outside Diameter 2 2 2 2 2 4 2 4 3 0 3 0 3 8 3 8 4 4 4 6 4 4 5 0 5 4 5 2 6 0 6 0 6 8 6 8 7 4 7 4 9 0 10 0 11 0 9 57 10 5 13 2 8 6 Notes 1 Sheave dimensions are based on the following a Motor nameplate horsepower and speed b Belt service factor of 1 6 with belts tightened to the belt manufacturers recommendations Speed re
29. mationDirect Terms amp Conditions for warranty and service on this product 1 For motors over 100 165 171 shipment required B Order before 4 00 p m EST same day shipment C You must have a receiving loading dock D Not available Hawaii or Puerto Rico 143T 145T 145T 182T 184T 213T 215T 254T 256T 284T 286T 324T 326T 364T 365T 405T 444T 445T 445 7T 58 64 68 100 1227 170 194 298 342 7 428 468 588 624 760 818 1248 1570 1752 2164 208 230 460 F1 ID DDR gt 460 4140 5 2 For warranty on motors 50 hp and above mot rs must be inspected by an FASA motor repair or service center See AutomationDirect Terms amp Conditions for details 1 6 IronHorse General Purpose Motors User Manual Chapter 1 Getting Started Performance Data T Frame Three Phase Motors 460 Volt except as indicated Part Number NEMA Design Minimum Speed rpm Current 230V 460V Amps Constant Torque CT Variable Torque VT Full Load No Load MTC 001 3BD18 MTC 1P5 3BD18 MTC 002 3BD18 MTC 003 3BD18 MTC 005 3BD18 MTC 7P5 3BD18 MTC 010 3B
30. ne doit tre copi e reproduite ou transmise de quelque fa on que ce soit sans le consentement pr alable crit de la soci t Automationdirect com M Incorporated AutomationDirect conserve les droits exclusifs l gard de tous les renseignements contenus dans le pr sent document IRONHORSE GENERAL PURPOSE AC MOTORS USER MANUAL Please include the Manual Number and the Manual Issue both shown below when communicating with Technical Support regarding this publication Manual Number IH USER M Issue Issue Date Issue First Edition Revision A 11 2007 Publication History Date Description of Changes First Edition 09 2007 Original Issue 1st Ed Rev A 11 2007 Chapter 2 wiring diagrams TABLE Or CONTENTS Chapter 1 Getting Started Manual Overview Available Models Receiving and Inspection Reshipping Long Term Storage Warranty Chapter 2 Mounting amp Initial Startup Safety Information Motor Dimensions Terminal Diagrams Motor Mounting Proper Installation Conditions Coupling Alignment Motor Nameplate amp Starter Information Inspection Before Startup Initial Startup Inspection Chapter 3 Preventative Ongoing Maintenance Routine Maintenance Bearing Size Information Chapter 4 Accessories Capacitors and Centrifugal Switches C Flange Kits STABLE Slide Bases IronHorse General Purpose Motors User Manual 1 2 1 3 1 10 1 11 1 11 1 11 2 2 2 6 2 7 2 8
31. nitial Startup Inspection 1 At initial startup monitor the start up voltage and the running voltage of the motor The full load voltage should never exceed the line voltage on the motor nameplate multiplied by the service factor of the motor Example 230 x 1 15 264 5 2 Check the full load running amperage of the motor The full load running amperage should not be more than the amount indicated on the motor nameplate 3 Listen for any unusual noises at motor start up and in the first hour of operation Listen for any unusual bearing noise in the drive end and opposite drive end of the motor Abnormal bearing noise can be an indication of a defective bearing or the motor grease could be low If there is abnormal noise in motors with serviceable bearings shut down the motor and check the grease level on both the drive end and opposite drive end Do not over grease the bearings Over greasing motor bearings is a common cause of motor failure Large horsepower motors with roller bearings will typically be noisier than ball bearing motors at initial motor start up and in normal operation m gt Ist Ed Rev A 11 2007 IronHorse General Purpose Motors User Manual 2 11 PREVENTATIVE ONGOING MAINTENANCE In This Chapter Routine 3 2 Bearing Size Information Chapter 3 Preventative Ongoing Maintenance Routine Maintenance A routine maintenance sc
32. nty and service on this product Performance Data Single Phase 56C Frame Motors 230V data except as indicated Part Number Current 115V 230V Amps Torque Ib ft FL Full Load Locked Rotor Full Load Locked Rotor Break down Efficiency FL Power Factor Rotor Inertia Ib ft2 MTR P33 1AB18 MTR P50 1AB18 MTR P75 1AB18 MTR 001 1AB18 1 MTR 1P5 1AB18 1 1 2 MTR 002 1AB18 2 6 6 3 3 31 18 1 02 3 06 2 81 56 0 0 62 0 075 8 8 4 4 37 21 1 52 4 56 4 18 57 0 0 63 0 080 11 0 5 5 55 32 2 29 6 30 5 73 65 0 0 65 0 095 13 6 6 8 75 43 3 04 8 36 7 60 68 0 0 66 0 120 15 2 7 6 120 65 4 57 11 43 10 28 71 0 0 75 0 142 20 0 10 0 150 86 6 09 15 23 13 70 73 0 0 77 0 182 Ist Ed A 11 2007 IronHorse General Purpose Motors User Manual 1 3 Chapter 1 Getting Started Three Phase Motors Features and Specifications Rolled Steel 56C Frame IronHorse 56C rolled steel frame three phase motors are available from 1 3 hp to 2 hp models have a TEFC frame cast aluminum end bell and removable mounting bases Motor Specifications Three Phase 56C Frame Motors 4 FL Amps Service Factor 230 460 MTR P33 3BD18 1 6 0 8 MTR P50 3BD18 TEFC 2 0 1 0 MTR P7
33. o as locked rotor amps Every IronHorse motor has a locked rotor amperage code letter stamped on the motor nameplate either as CODE or Code This letter applies to the locked rotor amp range value See the T frame motor Performance Data table in Chapter 1 for specific locked rotor amperage information Inspection Before Startup 1 Remove the shaft lock device if the motor was supplied with one 2 Turn the shaft by hand and make sure the shaft turns freely Listen for any unusual noises and feel for any interruption in the shaft as it turns 3 In all motors with serviceable bearings check the grease level on drive end and opposite drive end bearings Make sure the bearing cavities are filled with Exxon POLYREXO EM Polyurea grease to the proper running level 4 Perform a final check on the installation of all parts in the assembly Check the motor mounting bolts coupling belt drive C face mount alignment etc 5 Verify all electrical connections for the motor and starter Refer to the motor diagram on the motor nameplate Make sure all terminal screws are tightened properly 6 Make sure that all electrical components used in the installation are rated for the locked rotor amperage 7 Make sure the motor is properly grounded Use the grounding lug provided in the motor terminal box or on the mounting foot 2 10 IronHorse General Purpose Motors User Manual Chapter 2 Mounting amp Initial Startup I
34. ons applicables du Code national de pr vention des incendies du Code national de l lectricit et des codes de la National Electrical Manufacturer s Association NEMA Des organismes de r glementation ou des services gouvernementaux locaux peuvent galement vous aider d terminer les codes ainsi que les normes respecter pour assurer une installation et un fonctionnement s rs L omission de respecter la totalit des codes et des normes applicables peut entrainer des dommages l quipement ou causer de graves blessures au personnel Nous ne garantissons pas que les produits d crits dans cette publication conviennent votre application particuli re et nous n assumons aucune responsabilit l gard de la conception de l installation ou du fonctionnement de votre produit Nos produits ne sont pas insensibles aux d faillances et ne sont ni 5 ni fabriqu s pour l utilisation ou la revente en tant qu quipement de commande en ligne dans des environnements dangereux n cessitant une s curit absolue par exemple l exploitation d installations nucl aires les systemes de navigation a rienne ou de communication le contr le de la circulation a rienne les quipements de survie ou les syst mes d armes pour lesquels la d faillance du produit peut provoquer la mort des blessures corporelles ou de graves dommages mat riels ou environnementaux activit s risque lev La soci t AutomationDirect nie toute gar
35. ounting foot Mounting foot bolts IronHorse Part Number Information MT R P50 BD 18 L Nominal RPM 18 1800 rpm Voltage Class multiple letters possible A 115 VAC B 208 230 VAC D 460 VAC Phase 1 Single phase 3 Three phase Rated Horsepower P Decimal point left of P Rated full hp right of P Rated fractional hp Motor type A Motor accessory C Motor with cast iron frame R Motor with rolled steel frame IronHorse Motors Series Designation 1 10 IronHorse General Purpose Motors User Manual Chapter 1 Getting Started Reshipping If an IronHorse motor needs to be reshipped from the initial shipping point the following procedures should be followed to protect the motor from damage 1 If the original packaging is to be used for reshipment inspect the packaging for previous shipping damage and repackage if necessary Take care to protect the motor body fan cover and shaft 2 It is a good idea to bolt the motor to a platform that fits securely in the bottom of the shipping crate or box This helps prevent the motor from shifting during transport and thus protects the bearings from damage 3 A shaft lock device should be installed on motors from 100 to 300 hp prior to shipment The shaft lock helps prevent bearing damage 4 Motors should only be lifted by the the eyebolt s provided on the motor When lifting motors with more than one eyebolt use every bolt provi
36. rom 56 to 449 These heavy duty steel bases are primed with an oven baked primer ready for painting The motor mounting bolts are welded to the exact motor foot pattern to prevent the bolts from spinning 1st Ed Rev A Part Number Motor Slide Bases Fits Frame Type Shipping Weight Ib IronHorse Model MTA BASE W56 56 3 5 18 MTR xxx 3BD18 MTA BASE W143T 143T 5 0 MTC 001 3BD18 MTA BASE W145T 145T 5 6 MTC 1P5 3BD18 MTC 002 3BD18 MTA BASE W182T 182T 10 MTC 003 3BD18 MTA BASE W184T 184T 10 MTC 005 3BD18 MTA BASE W213T 213T 15 MTC 7P5 3BD18 MTA BASE W215T 215T 16 MTC 010 3BD18 MTA BASE W254T 254T 20 MTC 15 3BD18 MTA BASE W256T 256T 21 MTC 20 3BD18 MTA BASE W284T 284T 23 MTC 25 3BD18 MTA BASE W286T 286T 24 MTC 30 3BD18 MTA BASE W324T 324T 33 MTC 40 3BD18 MTA BASE W326T 326T 35 MTC 50 3BD18 MTA BASE W364T 364T 46 MTC 60 3BD18 MTA BASE W365T 365T 47 MTC 75 3BD18 5 404 4041 64 5 405 405 65 MTC 100 3BD18 5 444 4441 69 MTC 125 3BD18 5 445 445 70 MTC 150 3BD18 MTA BASE W447T 445 7T 447T 92 MTC 200 3BD18 5 449 11 2007 449 98 MT
37. tting size 2 4 IronHorse General Purpose Motors User Manual Chapter 2 Mounting amp Initial Startup Dimensions inches except as noted Three Phase T Frame Motors cont Part Number MTC 001 3BD18 MTC 1P5 3BD18 MTC 002 3BD18 MTC 003 3BD18 MTC 005 3BD18 MTC 7P5 3BD18 MTC 010 3BD18 MTC 015 3BD18 MTC 020 3BD18 MTC 025 3BD18 MTC 030 3BD18 MTC 040 3BD18 MTC 050 3BD18 MTC 060 3BD18 MTC 075 3BD18 n a MTC 100 3BD18 n a MTC 125 3BD18 n a MTC 150 3BD18 14 5 MTC 200 3BD18 20 ma MTC 250 3D18 MTC 300 3D18 Various frame sizes have 2 3 or 4 mounting holes per mounting foot F1 mounting shown some frame sizes are F1 F2 convertible refer to T Frame Motor Specifications table F2 mounting conduit entrance on right side facing shaft 25 ma 1 575 0 827 3 35 8 5 23 23 62 Ist Ed A 11 2007 IronHorse General Purpose Motors User Manual 2 5 Chapter 2 Mounting amp Initial Startup Terminal Diagrams 1 3 hp 2hp 10 models 6 Lead 115 208 230 VAC Low Voltage BLUE T1 ORANGE T3 RED T8 WHITE T2 YELLOW une 2 BLACK 15 ROTATION CW OPE TO REVERSE EITHER VOLTAGE INTERCHANGE RED AND BLACK LEADS High Voltage BLUE T1 LINE 1 RED T8 WHITE 2 ORANGE BLACK T5 LINE 1 YELLOW T4 LINE 2 1hp 5hp models 9 Lead 208 230 460 VAC YY
38. ty for your product design installation or operation Our products are not fault tolerant and are not designed manufactured or intended for use or resale as on line control equipment in hazardous environments requiring fail safe performance such as in the operation of nuclear facilities aircraft navigation or communication systems air traffic control direct life support machines or weapons systems in which the failure of the product could lead directly to death personal injury or severe physical or environmental damage High Risk Activities AutomationDirect specifically disclaims any expressed or implied warranty of fitness for High Risk Activities For additional warranty and safety information see the Terms and Conditions section of our catalog If you have any questions concerning the installation or operation of this equipment or if you need additional information please call us at 770 844 4200 This publication is based on information that was available at the time it was printed At AutomationDirect we constantly strive to improve our products and services so we reserve the right to make changes to the products and or publications at any time without notice and without any obligation This publication may also discuss features that may not be available in certain revisions of the product This publication may contain references to products produced and or offered by other companies The product and company names may be tra
39. y of the fan is reduced when motors run at lower speeds Therefore there are limitations on how slowly general purpose motors can be continuously run without prematurely causing insulation failure Constant torque CT applications 2 1 1 2 of the rated speed For IronHorse 1800 RPM general purpose motors the CT minimum continuous speed is 900 RPM Variable Torque VT applications 5 1 1 5 of the rated speed For IronHorse 1800 RPM general purpose motors The VT minimum continuous speed is 360 RPM Variable torque loads require less torque at lower speeds resulting in less heat generated by the motor e g fans centrifugal pumps The insulation of IronHorse motors in both the above applications can withstand voltage stress per NEMA Part 30 having a value of Base Voltage Rating 600V Vpk Kv Rise Time 2ps AutomationDirect offers a line of AC Drives that are suitable for operating IronHorse motors per the above specs and NEMA part 30 Voltage Spike Considerations for AC Drive Control AC drive can cause voltage spikes between the drive and the motor Long cable lengths can increase these spikes Therefore there are maximum cable lengths that can be run between the drive and the motor Line load reactors can also be installed near the drive output to reduce the voltage spikes 230V amp 460V without reactor 125 ft maximum cable length between the drive and motor e 230V amp 460V with reactor 250
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