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Kendrion INTORQ BFK551, Translation Of The Original Operating Instructions

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Maintenance and repair

Kendrion INTORQ | BA 14.0224 | 02/2021

40

8.3.3

Release / voltage

 DANGER

Danger: rotating parts!

The running rotor must not be touched.

 DANGER

There is a risk of injury by electrical shock!

The live connections must not be touched.

1. Check the brake functionality when the drive is running: The armature plate must be tightened and the

rotor must move without residual torque.

2. Measure the DC voltage at the brake.

3. Compare the measured voltage to the voltage specified on the name plate. A deviation of up to 10% is

permitted.

8.3.4

Brake replacement

 DANGER

Danger: rotating parts!

Switch off the voltage. The brake must be free of residual torque.
Your system should be mechanically immobilized in the event that it could start moving
when the brake is released.

1. Remove the connection cables.

2. Loosen the screws evenly and then remove them.

3. Pay attention to the connection cable during this step! Remove the complete brake from the end

shield.

4. Pull the brake off the hub.

5. Check the hub's gear teeth.

6. Replace the hub if wear is visible.

7. Check the function of the brake as described in the Release / voltage, Page 40 section. Mount a new

brake if necessary.

8. Reconnect the connection cable and put the brake back into operations.

9. If necessary, deactivate the mechanical shutdown of the system.

Summary of Contents for INTORQ BFK551

Page 1: ...INTORQ BFK551 Spring applied brake with electromagnetic release Translation of the Original Operating Instructions www kendrion com...

Page 2: ...ved from this infor mation illustrations and descriptions We do not accept any liability for damage and operating interference caused by inappropriate use unauthorized modifications to the product imp...

Page 3: ...ered match the accompanying pa pers Kendrion INTORQ does not accept any liability for deficiencies claimed subsequently Claim visible transport damage immediately to the deliverer Claim visible defect...

Page 4: ...5 Project planning notes 12 4 Technical specifications 13 4 1 Possible applications of the Kendrion INTORQ spring applied brake 13 4 2 Characteristics 13 4 3 Switching times 15 4 4 Friction work opera...

Page 5: ...and operation 33 7 1 operating range for the Kendrion INTORQ spring applied brake 33 7 2 Function checks before initial commissioning 34 7 2 1 Function check of the brake 34 7 2 2 Release voltage cont...

Page 6: ...tes relevant for them The Operating Instructions must always be in a complete and perfectly readable condition 1 2 Conventions in use This document uses the following styles to distinguish between dif...

Page 7: ...ired to avoid the danger Danger level DANGER DANGER indicates a hazardous situation which if not avoided will result in death or seri ous injury WARNING WARNING indicates a potentially hazardous situa...

Page 8: ...oltage and 20 C Q J Quantity of heat energy QE J Max permissible friction energy for one time switching thermal parameter of the brake QR J Braking energy friction energy QSmax J Maximally permissible...

Page 9: ...ginning of the torque rise t12 ms Rise time of the braking torque time from the start of torque rise until reach ing the braking torque tue s Over excitation period U V Voltage UH V DC Holding voltage...

Page 10: ...operation Take appropriate safety measures to ensure contact touch protection Follow all specifications and information found in the Operating Instructions and the corresponding documentation These m...

Page 11: ...ating Instructions They may never be operated beyond their specified performance limits The technical specifications refer to Techni cal specifications Page 13 must be followed to comply with the prop...

Page 12: ...etween the hub and the rotor via gear teeth When the brakes are applied an air gap sL is present between the stator and the armature plate To re lease the brake the coil of the stator is energized wit...

Page 13: ...t of inertia of rotor Weight of brake MK SLN 1 SLmax JRotor 2 Nm mm mm kg mm2 kg 01 0 24 0 15 0 08 0 05 0 28 0 369 0 14 02 0 5 1 24 0 24 03 0 5 0 15 0 1 0 05 0 4 2 794 0 32 1 0 3 04 1 0 4 7 719 0 45 2...

Page 14: ...of the end shield refer to the Mounting data Page 14 table If the required thread depth is not maintained the fastening screws may run onto the thread root This has the effect that the required pre lo...

Page 15: ...M 0 1 Mdyn t12 Rise time of the braking torque Mdyn Braking torque at a constant speed of rotation U Voltage Size Rated brake torque at n 100 rpm MK 1 QE 1 Shue Operating times 2 Maximum speed nmax DC...

Page 16: ...dmissible for safety reasons e g with hoists and lifts the spark suppressor can also be connected in parallel to the brake coil If the drive system is operated with a frequency inverter so that the br...

Page 17: ...05 Size 04 Size 03 Size 02 Size 01 Fig 3 Friction work as a function of the operating frequency Shue 1 QR QE Shmax In e 1 QSmax QE Shue Sh The permissible operating frequency Shmax depends on the fri...

Page 18: ...it may become necessary to connect a spark suppressor in parallel with the AC voltage Spark suppressors are available on request depending on the coil voltage 4 6 Emissions Heat Since the brake conve...

Page 19: ...the package The name plate is glued to the lateral surface of the brake Fig 4 Name plate example Kendrion INTORQ Manufacturer BFK551 01 Type refer to Product key Page 3 24 V DC Rated voltage 4 9 W Ra...

Page 20: ...turer 33008121 ID number BFK551 01 Type refer to Product key Page 3 Bar code SPRING APPLIED BRAKE Designation of the product family 24 V DC Rated voltage 0 24 NM Rated torque 10 pc Qty per box 4 9 W R...

Page 21: ...shaft to ensure a correct function of the brake The diameter of the shaft shoulder must not be greater than the tooth root diameter of the hub The brake flange must be supported by the end shield acro...

Page 22: ...04 05 T20 NOTICE Tightening torques refer to the Mounting data Page 14 table in chapter Mounting data Page 14 Multimeter Caliper gauge Feeler gauge 5 3 Preparing the installation 1 Remove the packagin...

Page 23: ...Tensile strength Rm 460 N mm2 Notice Depending on the brake size the braking torque is transmitted to the shaft either by means of a key or grub screws NOTICE If you are using the spring applied brake...

Page 24: ...stator or the flange when mounted on the housing side before during and of course after the assembly During assembly only the gap between the spacers and the flange of the brake is reduced This gap i...

Page 25: ...inimum bending radius for the brake connection cable Page 32 Mounting the brake on the flange side A B C D Fig 8 Mounting the brake on the flange side A Fastening screw B Spring applied brake C End sh...

Page 26: ...ounting the brake on the housing side A Fastening screw B Spring applied brake C End shield D Hub 3 Push the spring applied brake on the hub 4 Screw the spring applied brake to the end shield using th...

Page 27: ...ly be made by trained electricians Make sure that you switch off the electricity before working on the connections There is a risk of unintended start ups or electric shock NOTICE Make sure that the s...

Page 28: ...Fig 10 Supply Phase neutral Bridge rectifiers Half wave rectifiers BEG 1xx UN V DC 0 9 UV V AC BEG 2xx UN V DC 0 45 UV V AC 3 3 U2 W2 V2 UN L1 L2 L3 UV V1 U1 W1 UV 4 pole BEG 14x BEG 24x 6 pole BEG 16...

Page 29: ...Supply Phase neutral Bridge rectifiers Half wave rectifiers BEG 1xx UN V DC 0 9 UV V AC BEG 2xx UN V DC 0 45 UV V AC 3 3 U2 W2 V2 UN L1 L2 L3 UV V1 U1 W1 UV 6 pole BEG 16x BEG 26x Fig 13 Supply Phase...

Page 30: ...14 Supply Phase N Bridge rectifiers Half wave rectifiers BEG 1xx UN V DC 0 9 UV V AC BEG 2xx UN V DC 0 45 UV V AC L1 L2 UV UN 4 pole BEG 14x BEG 24x 6 pole BEG 16x BEG 26x Fig 15 Supply Phase phase B...

Page 31: ...0 45 UV V AC 1 For most regional national high voltage mains voltages this only makes sense for supplies on L1 and N L1 N L1 L2 UV UN 4 pole BEG 14x BEG 24x 14 198 00 xx or Fig 17 Supply Phase phase o...

Page 32: ...UV 14 198 00 xx or Fig 18 Supply 24V DC Notice Spark suppressor 14 198 00 xx required once select position 6 2 Minimum bending radius for the brake connection cable Size Wire cross section Minimum ben...

Page 33: ...t be touched The brake is designed for operation under the environmental conditions that apply to IP00 protection Because of the many ways the brake can be used it is necessary to check the functional...

Page 34: ...re is a risk of injury by electrical shock The live connections must not be touched 7 2 1 Function check of the brake If a fault or malfunction arises during the function check you can find important...

Page 35: ...rts The brake must be free of residual torque The drive must not be running when checking the brake DANGER There is a risk of injury by electrical shock The live connections must not be touched 1 Swit...

Page 36: ...se fixing attachment elements the condition of the electrical cables While current is being applied to the brake make sure that the armature plate is completely tightened and the drive moves without r...

Page 37: ...Cause Effect Influencing factors Rotor Service braking Wear of the friction lining Friction work Emergency stops Overlapping wear during start and stop of drive Active braking via the drive motor wit...

Page 38: ...amage to the system may occur when the brakes are not serviced There fore a maintenance strategy that is adapted to the particular operating conditions and brake loads must be defined for every applic...

Page 39: ...plate and the flange Flatness depending on the size Max run in depth rated air gap for the size Refer to the General data Page 13 table 8 3 2 Checking the air gap DANGER Danger rotating parts The moto...

Page 40: ...eplacement DANGER Danger rotating parts Switch off the voltage The brake must be free of residual torque Your system should be mechanically immobilized in the event that it could start moving when the...

Page 41: ...2 2021 41 8 4 Spare parts list A B A B Fig 19 INTORQ BFK551 spring applied brake left figure mounting on flange side right figure mounting on housing side Designation Variant A Brake Size Voltage Brak...

Page 42: ...plete spring applied brake Check the coil for short to ground using a multimeter If there is a short to ground replace the complete spring applied brake Check the brake voltage refer to section on def...

Page 43: ...Replace the complete brake Voltage too high Brake voltage does not match the rectifier Adjust rectifier and brake voltage to each other Voltage too low Brake voltage does not match the rectifier Adjus...

Page 44: ...les F INTORQ Shanghai Co Ltd 600 6 B No 600 Xin Yuan Nan Road Building No 6 Zone B Nicheng town Pudong 201306 Shanghai 86 21 20363 810 86 21 20363 805 info cn intorq com F INTORQ US Inc USA 300 Lake R...

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