INTORQ BFK458 Quick guide

INTORQ BFK458 for NORD Drivesystems
Spring-applied brake with electromagnetic release
Translation of the Original Operating Instructions
www.kendrion.com

Document history
Material number Version Description
33009766 1.0 09/2021 SC First edition for the series
33009766 2.0 05/2022 SC Update of chapters 4.2 and 4.3
Assignments for brake designations
NORD Drive Systems Kendrion INTORQ
BRE 5Nm ≙BFK 458-06
BRE 10Nm ≙BFK 458-08
BRE 20Nm ≙BFK 458-10
Tab.1: Table assigning brake designations of NORD Drive Systems to Kendrion INTORQ
Legal regulations
Liability
¾
The information, data and notes in these Operating Instructions are up to date at the time of printing.
Claims referring to drive systems which have already been supplied cannot be derived from this infor-
mation, illustrations and descriptions.
¾
We do not accept any liability for damage and operating interference caused by:
– inappropriate use
– unauthorized modifications to the product
– improper work on or with the product
– operating errors
– disregarding the documentation
Warranty
Notice
The warranty conditions can be found in the terms and conditions of Kendrion INTORQ
GmbH.
¾
Warranty claims must be made to Kendrion INTORQ immediately after the defects or faults are de-
tected.
¾
The warranty is void in all cases when liability claims cannot be made.
Kendrion INTORQ | BA 14.0225 | 05/2022 2

Spring-applied brakes of type BFK458-06...10
Design E Design N
Product key
Product group: Brakes
Product family: Spring-applied brake
Type: 458
Size: 06, 08, 10
Design/type:
E - adjustable (brake torque can be reduced via torque adjustment ring)
N - not adjustable
B FKINTORQ
Not coded: Connection voltage, hub bore diameter, options
Checking the delivery
After receipt of the delivery, check immediately whether the items delivered match the accompanying pa-
pers.
Kendrion INTORQ does not accept any liability for deficiencies claimed subsequently.
¾
Claim visible transport damage immediately to the deliverer.
¾
Claim visible defects or incompleteness of the delivery immediately to Kendrion INTORQ.
Kendrion INTORQ | BA 14.0225 | 05/2022 3

Contents
1 General information....................................................................................................................................................6
1.1 Using these Operating Instructions.......................................................................................................................6
1.2 Conventions in use ...............................................................................................................................................6
1.3 Safety instructions and notices .............................................................................................................................6
1.4 Terminology used .................................................................................................................................................7
1.5 Abbreviations used ...............................................................................................................................................7
2 Safety instructions .....................................................................................................................................................9
2.1 General safety instructions ...................................................................................................................................9
2.2 Disposal................................................................................................................................................................9
3 Product description..................................................................................................................................................10
3.1 Proper and intended usage ................................................................................................................................10
3.1.1 Standard applications.............................................................................................................................10
3.1.2 Applications with special safety requirements ("Safety Brake") .............................................................10
3.2 Design.................................................................................................................................................................12
3.2.1 Basic module E ......................................................................................................................................12
3.2.2 Basic module N ......................................................................................................................................13
3.3 Function..............................................................................................................................................................13
3.4 Braking and release............................................................................................................................................14
3.5 Project planning notes ........................................................................................................................................14
3.6 Brake torque reduction .......................................................................................................................................14
3.7 Optional configuration.........................................................................................................................................14
3.7.1 Hand-release (optional)..........................................................................................................................14
4 Technical specifications ..........................................................................................................................................15
4.1 operating range for the Kendrion INTORQ spring-applied brake .......................................................................15
4.2 Brake torques .....................................................................................................................................................16
4.3 Characteristics....................................................................................................................................................17
4.4 Switching times...................................................................................................................................................20
4.5 Friction work / operating frequency.....................................................................................................................22
4.6 Electromagnetic compatibility .............................................................................................................................23
4.7 Emissions ...........................................................................................................................................................23
4.8 Hand-release ......................................................................................................................................................24
4.9 Labels on product ...............................................................................................................................................24
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5 Mechanical installation ............................................................................................................................................26
5.1 Design of end shield and shaft ...........................................................................................................................26
5.2 Tools...................................................................................................................................................................27
5.3 Preparing the installation ....................................................................................................................................27
5.4 Installing the hub onto the shaft..........................................................................................................................28
5.5 Mounting the brake.............................................................................................................................................29
5.6 Installing the friction plate (optional) ...................................................................................................................32
5.7 Cover ring assembly ...........................................................................................................................................33
5.8 Mounting the hand-release (retrofitting)..............................................................................................................34
6 Electrical installation................................................................................................................................................35
6.1 Electrical connection...........................................................................................................................................35
6.2 AC switching at the motor – extremely delayed engagement.............................................................................36
6.3 DC switching at the motor – fast engagement....................................................................................................37
6.4 AC switching at mains – delayed engagement...................................................................................................38
6.5 DC switching at mains – fast engagement .........................................................................................................39
6.6 Minimum bending radius for the brake connection cable ...................................................................................40
7 Commissioning and operation ................................................................................................................................41
7.1 Possible applications of the Kendrion INTORQ spring-applied brake ................................................................41
7.2 Function checks before initial commissioning.....................................................................................................42
7.2.1 Function check of the brake ...................................................................................................................42
7.2.2 Release / voltage control........................................................................................................................42
7.2.3 Testing the hand-release functionality....................................................................................................43
7.3 Commissioning ...................................................................................................................................................44
7.4 Operation............................................................................................................................................................44
7.4.1 Brake torque reduction (for the optional adjustable braking torque) ......................................................45
8 Maintenance and repair............................................................................................................................................46
8.1 Wear of spring-applied brakes............................................................................................................................46
8.2 Inspections..........................................................................................................................................................47
8.2.1 Maintenance intervals ............................................................................................................................47
8.3 Maintenance .......................................................................................................................................................48
8.3.1 Brake testing ..........................................................................................................................................48
8.3.2 Checking the air gap ..............................................................................................................................48
8.3.3 Release / voltage....................................................................................................................................49
8.3.4 Adjusting the air gap...............................................................................................................................49
8.3.5 Checking the rotor thickness..................................................................................................................50
8.3.6 Replacing the rotor.................................................................................................................................50
8.4 Spare parts list....................................................................................................................................................51
9 Troubleshooting and fault elimination....................................................................................................................52
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