819-0289_P-237-HIres
Contents
1. 4 Release the drive pins and the armature will spring back approximately 1 32 inch The armature gap will now be provided by the autogap mechanism Warner Electric e 800 825 9050 Operating Instructions A worn out Electrically Released Brake can lose its ability to produce torque Consequently it is imperative that the brake be inspected frequent ly for wear and to insure that it engages and dis engages properly The frequency of inspections is dictated by usage a brake used in a high cycle rate and or heavy load application must be inspected more often than one used less severely Experience will determine proper inspection intervals The end of normal service will occur when the armature wears through the friction material and into the coil causing an open circuit and failure to release when voltage is applied Brake wear is determined by two checks The first deter mines whether the brake is about to lose torque the second ensures that the armature has not worn through the friction material endangering the coil If either of these checks indicates excessive wear the unit should be replaced Check No 1 Examine the three autogap release springs to assure that none of them are approaching total compression If any one of them is approaching total compression or if the distance from the underside of the drive pin head to the top of the detent cup washer is less than 062 inch the brake should be replaced Must be gre2. Tab ELECTRICALLY RELEASED BRAKE VIEWED FROM ARMATURE SIDE Figure 4 Warner Electric e 800 825 9050 819 0289 5 BES MNaaza MEX 55 53 63 2331 MTY 81 83 54 10 18 DIST AUTORIZADO QRO 442 1 95 72 60 ventas industrialmagza com Power Supplies for Electrically Released Brakes Electrical Connections and Adjustments Step 4 Connect the brake to an adjustable voltage current control following the instruc tions for that control Warner Electric s con trols are suitable for these brakes Note FB brakes are polarity sensitive The positive terminal of the brake must be con nected to the positive terminal of the con trol and vice versa Note For failsafe or Electrically released brake units FBB MBFB FBC ER or FB see instruction on proper electrical setup procedure Instructions for setting the optimum release voltage of permanent magnet applied electrically released brakes In a permanent magnet applied electrically released brake the attractive force between the brake surface is created by permanent magnets The brake is electrically released by applying DC power to the electro magnetic coil in the brake that opposes the permanent magnets Electrically released brakes are polarity sensi tive the positive lead of the power supply must be connected to the positive lead of the brake and the negative lead of the power supply must be connected to the negative lead of the brake The power supply applied to the brak
3. drench the friction material If the friction materi al has been saturated with oil or grease no amount of cleaning will be completely effective Once such a unit has been placed back in serv ice heat will cause the oil to be boiled to the surface resulting in further torque loss The drive pins should be kept free of foreign materials to ensure proper function of the brake 8 Warner Electric e 800 825 9050 Fails to Release If the Electrically Released Brake does not release completely make the following checks 1 Check that the electrical connections polari ty between the brake coil and the power supply are correct for the power supply being used refer to Step 4 page 6 2 Connect a DC voltmeter across the brake ter minals Do not disconnect the leads to the terminals The voltmeter should indicate a voltage in the range of 75 to 110 volts 3 The above checks are normally sufficient Further checks may be made by checking the brake coil resistance a Turn off the power to the brake b Disconnect one lead from the coil to make sure the circuit is open c Connect an ohmmeter across the brake terminals The resistance should be as shown 24V Coil Resistance 90V Coil Resistance Brake Size at 20 C 10 at 20 C 10 FB 375 29 447 FB 475 22 310 FB 650 16 235 A very high or infinite resistance reading would indicate an open coil A very low resistance would indicate a shorted coil In either
4. furnished Size Bore Dia Keyway FB 375 626 625 3 16 x 3 32 501 500 1 8 x 1 16 FB 475 500 562 1 8 x 1 16 Dodge 1008 625 875 3 16 x 3 32 937 1 000 1 4 x 1 8 FB 650 500 562 1 8 x 1 16 Dodge 1310 625 875 3 16 x 3 32 937 1 250 1 4 x 1 8 1 312 1 375 5 16 x 5 32 UL SR Note FB 375 has a straight bore Bushing not required Bushings also available in metric bores All dimensions are nominal unless otherwise noted A B Cc D E G M Size Max Dia Min Dia Min F Dia H J K L Max N 0 P 375 4 078 3 125 7505 031 1 906 1 375 3 359 187 1 281 1 546 2 750 860 281 531 475 5 171 4 000 1 663 1 593 1 875 1 781 3 875 1 218 1 546 3 330 1 093 312 531 650 6 578 5 125 2 343 2 281 2 250 2 562 4 800 1 550 1 546 3 718 1 065 343 640 Q S AA Size Max R Dia T U v Ww Max BB cc DD EE FF GG HH 375 2 000 1 500 270 250 781 359 4 468 3 750 1 000 8 000 666 781 2 582 1 500 260 475 281 2 000 1 500 270 250 781 390 4 984 3 750 1 000 10 000 696 687 3 093 1 500 260 650 359 2 000 1 500 270 250 781 437 5 843 3 750 1 125 11 000 843 843 4 062 1 500 260 10 Warner Electric e 800 825 9050 819 0289 BES MNaaza MEX 55 53 63 2331 MTY 81 83 54 10 18 Qe DIST AUTORIZADO QRO 442 1 95 72 60 FB 375 FB 475 FB 650 ventas industrialmagza com Electrically Released Static Max Total Brake Size Torque S
5. x 1008 4 516 2 3 4 641 2 3 4 1 2 13 1 750 1 8 3 16 1 8 1 4 484 609 UNG FB 650 1 3 8 5 16x 2 1 2x 590 0042 1 3 8 5 16x 590 0044 1310 5 547 3 3 8 641 3 3 8 1 2 13 2 125 5 32 1 4 5 32 1 3 8 5 515 609 UNG FB 650 1 5 8 3 8x 2 1 4 1 2x 590 0042 1 3 8 5 16x 590 0044 1310 6 172 4 641 4 1 2 13 2 375 3 16 1 4 5 32 1 3 8 6 140 609 UNC All dimensions are nominal unless otherwise noted Warner Electric e 800 825 9050 819 0289 11 BES MNaaza MEX 55 53 63 2331 MTY 81 83 54 10 18 Qe DIST AUTORIZADO QRO 442 1 95 72 60 ventas industrialmagza com FB 375 FB 475 FB 650 How to order 1 For thru shaft mounting specify bore size For FB 475 and FB 650 order bushing sepa rately FB 375 does not require a bushing bore size required for mounting the Electrically Released Brake on the end of the motor adapter FB 375 5 8 bore 2 For motor mounting order adapter separate FB 475 1 1 8 bore ly Item 10 Specify the following bore size for FB 650 1 3 8 bore the Electrically Released Brake This is the FB 375 FB 475 FB 650 Item Description Part Number Qty Part Number Qty Part Number Qty Optional Parts 1 Bushing N A 180 0410 1 2 bore 180 0421 1 2 bore to 180 0418 1 bore 1 to 180 0435 1 3 8 bore 1 2 Adapter optional 1 1 1 5 8 motor shaft 5380 101 005 7 8 motor shaft 5380 101 004 1 1 8 motor shaft 1 3 8 motor shaft 1 5 8 motor shaft Service Parts 5381 101 003 5382 101 003
6. 0435 Warner Electric e 800 825 9050 819 0289 13 BES MNaaza MEX 55 53 63 2331 MTY 81 83 54 10 18 DIST AUTORIZADO QRO 442 1 95 7260 ventas industrialmagza com Warranty Warner Electric LLC warrants that it will repair or replace whichever it deems advisable any product manufactured and sold by it which proves to be defective in material or workmanship within a period of one 1 year from the date of original purchase for consumer commercial or industrial use This warranty extends only to the original purchaser and is not transferable or assignable without Warner Electric LLC s prior consent Warranty service can be obtained in the U S A by returning any defective product transportation charges prepaid to the appropriate Warner Electric LLC factory Additional warranty information may be obtained by writing the Customer Satisfaction Department Warner Electric LLC 449 Gardner Street South Beloit Illinois 61080 or by calling 815 389 3771 A purchase receipt or other proof of original purchase will be required before warranty service is rendered If found defective under the terms of this warranty repair or replacement will be made without charge together with a refund for transportation costs If found not to be defective you will be notified and with your consent the item will be repaired or replaced and returned to you at your expense This warranty covers normal use and does not cover damage or defect which result
7. 5382 101 002 Retainer ring 748 0101 748 0102 748 0104 Ball bearing 166 0150 166 0110 166 0104 Retainer ring 748 0018 748 0002 748 0004 Torque arm mount assembly 5380 101 007 5381 101 006 5382 101 007 Torque arm rod assembly 5380 1 12 001 5381 112 001 5382 112 001 Terminal accessory 5311 101 001 5311 101 001 5311 101 001 O O IN O a R o Conduit Box 5200 101 010 a oayjoaf ajasyaja 5200 101 010 k ak a a l at 5200 101 010 a See page 13 for specific part numbers These units when used with the correct Warner Electric conduit box meet the standards of UL508 and are listed under guide card NMTR2 file 59164 and are CSA certified under file LR11543 Magnet and armature are not field replaceable 12 Warner Electric e 800 825 9050 819 0289 BES MNaaza MEX 55 53 63 2331 MTY 81 83 54 10 18 DIST AUTORIZADO QRO 442 1 95 72 60 ventas industrialmagza com Bushing Part Numbers Shaft Size Part No Dodge 1008 1 2 180 0410 9 16 180 0411 5 8 180 0412 11 16 180 0413 3 4 180 0414 13 16 180 0415 7 8 180 0416 15 16 180 0417 1 180 0418 Dodge 1310 1 2 180 0421 9 16 180 0422 5 8 180 0423 11 16 180 0424 3 4 180 0425 13 16 180 0426 7 8 180 0427 15 16 180 0428 1 180 0429 1 1 16 180 0430 1 1 8 180 0431 1 3 16 180 0432 1 1 4 180 0433 1 5 16 180 0434 1 3 8 180
8. BES MNaaza MEX 55 53632331 MTY 81 83 54 10 18 SEE DIST AUTORIZADO QRO 442 195 7260 ventas industrialmagza com Electrically Released Brakes FB 375 475 650 psig Installation Instructions 819 0289 Warner Electric INDUSTRIAL MEX 55 53 63 2331 MTY 81 83 54 10 18 DIST AUTORIZADO QRO 442 1 95 72 60 ventas industrialmagza com Contents INtrOdUCTION sesioa ea eaed aed dean ee eee 3 Installing the Brake oi 5 s0hssse see aessun ss 4 Power Supplies and Electrical Connections 6 Autogap Adjustment 005 6 Operating Instructions ei ws 24 2 aac d ee oe wee 7 Illustration Drawings 46 0sse enue 10 Motor Adapter Dimensions 11 Bushing Part Numbers 13 Warranty secs e eau a ne vedas Back Page Failure to follow these instructions may result in product dam age equipment damage and serious or fatal injury to personnel 2 Warner Electric e 800 825 9050 This service manual tells how to install adjust and maintain your Warner Electric brake It also contains information for part replacements when needed Warner Electrically Released Brakes are high performance high torque units To obtain the required performance and life the brake must be installed exactly in accordance with the instructions of this service manual Failure to do so can result in unit breakdown or destruction and possible injury or damage to persons and property Afte
9. Consult the fac tory for recommendations on a longer arm The threaded rod can be cut to any desired length One rod end must be secured to the tab on the Electrically Released Brake and the other end must be secured to a solid base Although the torque arm may be mounted in either direction the position of the tab and arm is important Recommended position relative to shaft rotation is shown in Figure 4 On reversing applications where the rod is in compression every other cycle the rod must be relatively short or a special heavier rod may be necessary Bushing Key Bushing ZB Screws n Shaft Bushing FB 475 or FB 650 Figure 3 ACAUTION Do not connect rigid conduit directly to the conduit box A minimum of 12 of flexible liquid tight conduit or other suitable flex ible wiring iwth appropriate fittings is required Flexible wiring is required to prevent side load ing of bearing on bearing mounted clutches and possible deformation or breakage of the conduit box or clutch brake components during assem bly Torque Arm May Be Mounted in Any Direction Clockwise Rotation If Direction of Belt Pull gt lt Belt Pull Q o QO Then Locate Then Locate Roni Torque Arm Tab Torque Arm Tab PeT Counterclockwise Rotation wre pirsssesssssssss2gefOXy If Direction of Q lt Belt Pull Then Locate O O If Direction of Torque Arm Tab Rotation Belt Pull gt Then Locate Torque Arm
10. Electric e 800 825 9050 819 0289 3 INDUSTRIAL MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO QRO 442 1 95 72 60 ventas industrialmagza com Installation Instructions Sizes FB 375 Through FB 650 Installing the Brake Note Failure to set autogap using the proce dures in this manual may cause overheating and premature failure Step1 The first installation step applies only to the optional motor adapter See Figure 1 For installation on a double shaft extension motor or through shaft proceed to Step 2A for the FB 375 or Step 2B for the FB 475 or FB 650 All parts must be clean and free from burrs or chips before assembly Insert the motor shaft key in the motor shaft Tighten the motor adapter set screws Insert the sheave or sprock et key into the motor adapter keyway Install the sheave or sprocket on the motor adapter either with a tapered bushing or straight bore Install the belts or chain To assemble the brake on the motor adapter proceed to Step 2A for the FB Motor Shaft Key Motor Shaft ja Set Screws 2 lt Adapter Set Screws 2 Sheave Key Electrically Released Brake Key FB 375 Figure 1 FB 375 with Motor Adapter 4 Warner Electric e 800 825 9050 375 or Step 2B for the FB 475 or FB 650 Step 2A Check to insure that all parts are clean and free from burrs and chips Insert the key in the shaft extension keyway Slide the brake assembly into position on the sh
11. Step 5 Turn the power on to electrically release the brake The armature should spring back approximately 1 32 inch as shown If the armature fails to disengage turn the control knob on the brake control CCW to 0 and then CW until the armature releases You ve now reached the minimum release voltage The knob can be turned further CW to find the most favorable release point If the armature does not spring back fol low the autogap adjustment procedure as fol lows refer to Figure 6 819 0289 INDUSTRIAL MEX 55 53 63 2331 MTY 81 83 54 10 18 DIST AUTORIZADO QRO 442 1 95 72 60 ventas industrialmagza com Armature Garnier Armature Spring aT ee Back 1 32 Inch etent Spring Retainer i Magnet I Drive Pin Detent Spring Figure 6 ACAUTION Keep fingers clear of area between the magnet and the armature because the armature will be pulled sharply toward the magnet if the release voltage is altered for any reason 1 With the brake power on pull gently on the O D of the armature to separate it from the magnet by a 1 32 inch or greater airgap Do not pry This could damage the components 2 Slide the detent spring retainer on each drive pin until it bottoms against the carrier If armature cannot be moved check voltage and polarity See Operating Instructions Fails to Release on page 8 3 Push against the drive pins to push the arma ture into contact with the magnet
12. aft exten sion See Figure 1 or 2 Tighten the set screws Go to Step 3 Step 2B Check to insure that all parts are clean and free from burrs or chips Insert the key into the shaft keyway Place the bushing into the hub and match half holes to make complete holes Each hole will be threaded on one side only Place the screws loosely into the holes which are threaded on the hub side Slip the assem bly onto the shaft and locate it in the desired position See Figure 3 Motor Shaft Brake Key Shaft Set Screws 2 FB 375 Figure 2 FB 375 without Motor Adapter Tighten the screws alternately and evenly until all are pulled up very lightly Tap against the large end of the bushing with a plastic hammer to avoid damaging the bushing The screws can then be tightened again using the follow ing torque specifications FB 475 55 in Ib FB 650 175 in Ib Repeat this alternate tapping and retightening until the specified wrench torque no longer turns the screws 819 0289 INDUSTRIAL MEX 55 53 632331 MTY 81 83 54 10 18 DIST AUTORIZADO QRO 442 1 95 72 60 ventas industrialmagza com To disassemble remove both screws and reinsert one screw in the vacant hole threads on bushing Tighten this screw until the bushing is loosened in the hub If the bushing does not loosen tap on the hub Go to Step 3 Installing The Torque Arm Step 3 The maximum length threaded rod is fur nished for normal mounting
13. ater than 062 inch Step indicating friction material thickness Check No 1 819 0289 7 INDUSTRIAL MEX 55 53 63 2331 MTY 81 83 54 10 18 DIST AUTORIZADO QRO 442 1 95 7260 ventas industrialmagza com Check No 2 A step is machined on the O D of the brake magnet where the armature and magnet meet This step is equal to the friction material thick ness When this step is completely covered by the armature with the brake engaged the brake is worn out and should be replaced Magnet worn to step Worn out Check No 2 After completing an inspection with the machine turned off cycle it several times If the Electrically Released Brake stopping time has more than doubled since the original set up this also indicates the brake is worn out and should be replaced Foreign Materials If units are used on machin ery where fine abrasive dust chips or grit are dispelled into the atmosphere a protective screen over the unit may be necessary Where units are used near gear boxes or transmis sions requiring frequent lubrication s means should be provided to protect the friction surfaces from oil and great to prevent seri ous loss of torque by reducing the coefficient of friction and swelling the friction material Oil and grease accidentally reaching the friction surfaces may be removed by wiping with a rag dampened with a suitable cleaner which leaves no resdue In performing this operation do not
14. case the unit should be replaced Wear Pattern Wear grooves appear on the fric tion surfaces This is a normal wear condition and does not impair functioning of the unit Never machine the friction surfaces to remove grooves or score marks resulting from normal wear There are two main wear parts magnet and armature When either is worn out the complete brake must be replaced 819 0289 BES Maaza MEX 55 53 63 2331 MTY 81 83 54 10 18 DIST AUTORIZADO QRO 442 1 95 7260 ventas industrialmagza com Heat Excessive heat and high operating tem peratures are causes of rapid wear Air should be allowed to circulate around the unit as effi ciently as possible especially if the application requires fast repetitive cycle operation If the above checks indicate that the proper voltage and current is being supplied to the coil mechanical parts should be checked to assure that they are in good operating condition and properly installed Wear Pattern Warner Electric e 800 825 9050 819 0289 9 BES MNaaza MEX 55 53 63 2331 MTY 81 83 54 10 18 Qe DIST AUTORIZADO QRO 442 1 95 72 60 ventas industrialmagza com FB 375 FB 475 FB 650 lt L e H A H A H A LI j Ee G ABCD 4 U C a yd yO HH 0 lt p N gt m M Bore Data Key
15. cifications shown in Warner Electric catalogs are subject to change without notice Weights do not include weight of boxing for shipment Certified prints will be furnished without charge on request to Warner Electric Warner Electric LLC arner 449 Gardner Street South Beloit IL 61080 z 815 389 3771 Fax 815 389 2582 Electric www warnerelectric com P 237 819 0289 6 05 Printed in USA
16. e must also be adjustable so that the optimum release voltage for each individual brake can be deter mined and set The following procedure describes how to set the adjustable power supply to the optimum release point of the brake A volt meter is required to perform the procedure 1 With the power off connect the positive lead of the power supply to the positive lead of the brake and the negative lead of the power 6 Warner Electric e 800 825 9050 supply to the negative lead of the brake 2 Connect a volt meter to measure the voltage applied across the brake 3 Adjust the power supply to its lowest possi ble output then energize the supply to apply power to the brake 4 Starting from the low point slowly increase the applied voltage until the brake armature disengages from the magnet Note and record the applied voltage at this point 5 Continue to slowly increase the applied volt age until the armature re engages the mag net If the maximum voltage available from the supply does not cause the armature to re engage the armature should be manually assisted into engagement 6 With the armature re engaged slowly reduce the applied voltage until the armature disen gages from the magnet Note and record the applied voltage at this point 7 The optimum release point for the brake is half way between the two recorded voltage readings Adjust the supply to this optimum release voltage Autogap Adjustment
17. peed Weight FB 375 10 5 lb ft 5000 4 5 Ibs FB 475 21 Ib ft 4500 6 3 Ibs FB 650 56 Ib ft 3600 13 2 Ibs Motor Adapter Bore Sizes Motor Adapter Motor A When using an adapter Model Shaft Usable B order the following Size Size Length Dia Adapter Dodge Bushing 375 625 2 000 875 5380 101 005 None 875 2 250 1 250 5380 101 004 None 475 1 125 2 750 1 625 5381 101 003 1008 1 650 1 375 3 000 2 000 5382 101 003 1310 1 375 1 625 3 625 2 250 5382 101 002 1310 1 375 Order FB 375 with 5 8 bore FB Shaft Adapter Shown below are dimensions and specifications for the optional shaft adapter available for mounting FB Series brakes on a motor A stan dard sheave pulley or sprocket with either a tapered bushing or straight bore can be installed on the shaft adapter The brake is H Threaded mounted on the end of the shaft adapter and the Removal Hole G gt l complete assembly fits onto the motor shaft secured with setscrews Fitting the belts or chain and torque arm completes the installation Dodge Key Key Bushing Model A Kwy B Kwy PartNo C Kwy PartNo Size D E F G H I FB 375 5 8 3 16x 7 8 3 16x 590 0016 5 8 3 16x 590 0043 None 4 391 2 391 2 1 4 20 1 125 3 32 3 32 3 32 4 359 359 UNC FB 375 7 8 3 16x 1 1 4 1 4x 590 0022 5 8 3 16x 590 0043 None 4 578 2 1 4 516 2 1 4 1 4 20 1 500 3 32 1 8 3 32 4 742 484 UNG FB 475 1 1 8 1 4x 1 5 8 3 8x 590 0041 1 1 4
18. r carefully reading these instruc tions no assembly or installation difficulties should be encountered The Warner Electric warranty does not apply to any unit which is not installed used operated and maintained in accordance with Warner Electric s instructions 819 0289 BES MNaaza MEX 55 53 63 23 31 MTY 81 83 54 10 18 QZ DIST AUTORIZADO QRO 442 1 95 72 60 ventas industrialmagza com Introduction Warner Electric Electrically Released Brakes produces full braking torque The brake is function on the same principle of response to released by generating an electromagnetic field magnetic attraction that operates other Warner which opposes the field produced by the per Electric brakes and clutches Braking torque in manent magnets An adjustable voltage or cur these brakes depends on ceramic permanent rent control should be used to achieve best magnets which have a high resistance to release demagnetization With the power off the unit Autogap Automatic wear adjust Long Life High Cycle Rates Segmented armature provides high heat dissipation and long service life Capable of rapid cycling High Torque Powerful permanent magnets Electrically Released Brake automatically engages when power is turned off releases when power is applied Mounting Flexibility The FB torque arm feature per SJ s lt j mits mounting on any shaft Wide NS range of shaft sizes a J Warner
19. s from alteration accident neglect or improper installation operation or maintenance Some states do not allow limitation on how long an implied warranty lasts so the above limitation may not apply to you Warner Electric LLC s obligation under this warranty is limited to the repair or replacement of the defective product and in no event shall Warner Electric LLC be liable for consequential indirect or incidental damages of any kind incurred by reason of the manufacture sale or use of any defective product Warner Electric LLC neither assumes nor authorizes any other person to give any other warranty or to assume any other obligation or liability on its behalf WITH RESPECT TO CONSUMER USE OF THE PRODUCT ANY IMPLIED WARRANTIES WHICH THE CONSUMER MAY HAVE ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL CONSUMER PURCHASE WITH RESPECT TO COMMERCIAL AND INDUSTRIAL USES OF THE PRODUCT THE FOREGOING WARRANTY IS IN LIEU OF AND EXCLUDES ALL OTHER WARRANTIES WHETHER EXPRESSED OR IMPLIED BY OPERATION OF LAW OR OTHERWISE INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state Changes in Dimensions and Specifications All dimensions and spe
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