IH-USER-M-WO – Chapter 5: Reference
Contents
1. Several models of IronH orse motors can be converted from F1 to F2 mounting F1 to F2 Mounting Convertibility Frame Size Ability to be Converted 56 No F1 only 143T 145T 182T 184T 213T 215T 254T 256T 284T 286T 324T 326T No F1 only 364T 365T 405T 444T 445T Yes F1 convertible to F2 445 7T 449T No F1 only TC frame motors have the same convertibility as the comparable T frame motors Yes F1 convertible to F2 Drive End To minimize the potential of damage to any internal component use caution when pulling the rotor from the frame when converting an IronH orse motor from F1 to F2 A 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 l IronHorse General Purpose Motors User Manual 3rd Edition 06 2009 Chapter 5 Reference Junction Box Dimensions gt d i Junction Box Dimensions XD NANANG Frame Size i Conduit Hole NPT 56 st 1 2 143T 145T 182T 184T 213T 215T 254T 256T 284T 286T 324T 326T 364T 365T 405T 444T 445T 445 7T 449T TC frame motors have the same junction boxes as the comparable T frame motors 3 4 3 2 openings 3rd Editi2. details 4 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 l IronHorse General Purpose Motors User Manual 3rd Edition 06 2009 Decibel Levels 3rd Edition 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 Chapter 5 Reference a a jrrrrrrrrrrrr V pr KR xrrrerr ra krkrkrRrkKkKr mRmk Kr KXbkDiKD pi v v v 1 fairly consistent and can be an indication of misalignment and premature bearing wear If the measured decibel level for your IronH orse model exceeds the value listed below by more than 10 contact AutomationD irect or a local motor service technician found at www easa com 06 2009 Average T frame Decibel Levels Frame Size Noise Level Lw dB A 143T 64 0 145T 68 0 68 8 182T 74 0 184T 73 0 213T 78 4 215T 74 3 254T 74 6 256T 74 0 284T 75 0 286T 76 1 324T 76 4 326T 77 0 364T 77 1 365T 78 0 405T 100 78 1 444T 125 78 3 445T 150 79 4 445 7T 200 79 4 449T 250 81 0 300 81 4 TC frame motors have the same sound ratings as the comparable T frame motors IronHorse Ge
3. limitations on how slowly general purpose motors can be continuously run without prematurely causing insulation failure e Constant torque CT applications 2 1 1 2 of the rated speed The CT minimum continuous speed for an IronH orse general purpose motor is half of its rated speed as shown in the motor Performance Data tables Constant torque loads require the same oa of torque from the motor regardless of speed e g conveyors cranes machine tools e Variable Torque VT applications 5 1 1 5 of the rated speed The VT minimum continuous speed for an IronHorse general purpose motor is one fifth of its rated speed as shown in the motor Performance Data tables 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 of the above applications can withstand voltage stress per NEMA Part 30 having a value of e Base Voltage Rating lt 600V e Vpk 1kV e Rise Time 2us AutomationDirect offers a line of AC Drives that are suitable for operating IronH orse motors per the above specs and NEMA part 30 Voltage Spike Considerations for AC Drive Control All AC drives 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 nea
4. REFERENCE In This Chapter Using IronHorse Motors with AC Drives 5 2 Voltage Spike Considerations for AC Drive Control 5 2 Double Punched Motors anasa uaaa aaea 5 3 Fan MOUNINO 2a ANDAS AA Dha bene 5 4 Junction Box Dimensions 0 ces 5 5 Minimum Sheave Diameters 5 6 Decibel LOVES ia a a DAA AK BAAL KALAKAL KA AA 5 7 Shipping Crate Dimensions ce eee eee 5 8 Chapter 5 Reference Using IronHorse Motors with AC Drives IronH orse 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 IronH orse motor with an AC drive Single phase AC motors cannot be controlled by typical AC drives The advantages of using an AC drive include e Lower inrush current at motor startup e Ability to change motor speed at any time e Greater efficiency in some applications Fan and Pump applications can use an AC drive to provide motor flow control by varying the motor speed e 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 speed The cooling ability of the fan is reduced when motors run at lower speeds Therefore there are
5. neral Purpose Motors User Manual 5 7 Chapter 5 Reference KG uuusseexzzee iAAAACACACARn JF 2g eppyum ua xna Shipping Crate Dimensions Nominal Shipping Crate Dimensions Width x Depth x Height Frame Size in 15x 11x10 17x 11x10 143T 145T 14x11x17 145T 182T 184T 213T 215T 254T 256T 284T 286T 324T 326T 364T 365T 405T 44 x 32 x 30 444T 445T 150 47 x 33 x 32 445 7T 200 250 449T 63 x 33 x 37 300 TC frame motors ship in the same crates as the comparable T frame motors Shipping weights are listed in the Motor Specifications tables in Chapter 1 Getting Started 16 x 14 x 20 18 x 16 x 25 31 x 23 x 22 33 x 24 x24 36x26x25 39 x 28 x 27 5 8 l IronHorse General Purpose Motors User Manual 3rd Edition 06 2009
6. on 06 2009 IronHorse General Purpose Motors User Manual l 5 5 Chapter 5 Reference ET 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 2 Ol Conventional Narrow Frame Size D A B C D and E 3 3V 5V and 8V 4 Minimum Pitch Diameter Minimum Outside Diameter 143T 2 2 2 2 145T 182T 184T 213T 215T 3 8 3 8 254T 4 4 256T 4 6 4 4 284T 5 0 286T 5 4 5 2 324T 6 0 6 0 326T 6 8 6 8 364T 7 4 7 4 365T 9 0 405T 444T p 9 5 445T 10 5 449T 13 2 Notes 2 4 2 4 3 0 3 0 8 6 1 TC frame motors have the same minimum sheave diameters as the comparable T frame motors 2 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 c Speed reduction 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 in notes 2 amp 3 below 3 As covered by IP 20 Specifications for Drives U sing Classical V Belts and Sheaves Go to www mpta org and www rma org for
7. r the drive output to reduce the voltage spikes e 230V amp 460V without reactor 125 ft maximum cable length between the drive and motor e 230V amp 460V with reactor 250 ft maximum cable length between the drive and motor AN To avoid overheating the AC Drive carrier frequency must be set at or below 6kHz D 2 l IronHorse General Purpose Motors User Manual 3rd Edition 06 2009 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 Mounting and Initial Startup for complete motor dimensions Motor Mounting Bolt Sizes Punched for Additional Frame Size 56 Yes 143T 143T No 145T Yes 143T 182T No 184T Yes 182T 213T No 215T Yes 213T 254T No 256T Yes 254T 284T No 286T Yes 284T 324T No 326T Yes 324T 364T No 365T Yes 364T 405T Yes 404T 444T No 445T Yes 444T 445 7T Yes 445T 449T No TC frame motors have the same mounting foot punching as the comparable T frame motors Frame Size Double Punched 3rd Edition 06 2009 IronHorse General Purpose Motors User Manual 5 3 Chapter 5 Reference ee F1 and F2 Mounting F1 and F2 mounting refers to the location of the junction box on an AC motor
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