Kendrion EEX Series User manual

KENDRION INDUSTRIAL BRAKES
EEX Line
Spring-applied single-disc brake
Operating Instructions 76..G..B00
Types: 76 14G10B00 76 16G10B00 76 24G10B00 76 26G10B00
76 14G11B00 7616G11B00 76 24G11B00 76 26G11B00
76 14G13B00 76 16G13B00 76 24G13B00 76 26G13B00
76 14G16B00 76 16G16B00 76 24G16B00 76 26G16B00
76 14G19B00 76 16G19B00 76 24G19B00 76 26G19B00
76 14G24B00 76 16G24B00 76 24G24B00 76 26G24B00

Operating Instructions BA 76..G..B00 // Last updated: 13/03/2020 // Page 2 of 34
Contents
1. General ................................................................................................................................................... 3
1.1 Introduction ........................................................................................................................................... 3
1.2 Standards and directives ...................................................................................................................... 3
1.3 Declaration of Incorporation (in accordance with Annex II, part 1, Section B of Machinery Directive
2006/42/EC).......................................................................................................................................... 4
1.4 Declarations of conformity .................................................................................................................... 5
1.4.1 ATEX Directive 2014/34/EU (equipment and protective systems intended for use in potentially
explosive atmospheres) ..................................................................................................................... 5
1.4.2 Directives 2014/35/EU (Low Voltage Directive) and 2011/65/EU (RoHS Directive).......................... 6
1.5 Manufacturer's liability .......................................................................................................................... 6
2. Product description............................................................................................................................... 7
2.1 Operating principle................................................................................................................................ 7
2.2 Brake design ......................................................................................................................................... 7
3. Installation............................................................................................................................................ 10
3.1 Mechanical installation........................................................................................................................ 10
3.2 Installation of the hand release (29) (brake types with hand release)................................................ 11
3.3 Electrical connection and operation.................................................................................................... 11
3.3.1 AC power supply .............................................................................................................................. 12
3.3.2 Microswitch (13) and thermoswitch (11 & 12) connection ............................................................... 14
3.4 Electromagnetic compatibility ............................................................................................................. 15
3.5 Set-up and start-up ............................................................................................................................. 17
3.6 M2rated torque adjustments............................................................................................................... 18
4. Maintenance......................................................................................................................................... 19
4.1 Checks and service............................................................................................................................. 19
4.2 Spare parts and accessories .............................................................................................................. 22
5. Condition at delivery........................................................................................................................... 22
6. Emissions............................................................................................................................................. 23
6.1 Noise ................................................................................................................................................... 23
6.2 Heat..................................................................................................................................................... 23
7. Troubleshooting .................................................................................................................................. 24
8. Safety .................................................................................................................................................... 25
8.1 Intended use ....................................................................................................................................... 25
8.2 General safety information.................................................................................................................. 25
8.2.1 Set-up............................................................................................................................................... 26
8.2.2 Start-up............................................................................................................................................. 26
8.2.3 Installation ........................................................................................................................................ 26
8.2.4 Operation.......................................................................................................................................... 26
8.2.5 Maintenance, repair and replacement.............................................................................................. 27
8.3 Warning symbols ................................................................................................................................ 27
9. Definitions ............................................................................................................................................ 28
10. Technical specifications ..................................................................................................................... 30
11. Product versions (types) .................................................................................................................... 33
12. Product number / type number / version number............................................................................ 33
13. Specialist repair shops ....................................................................................................................... 33
14. Revision history................................................................................................................................... 33
Document information:
Issued by: Kendrion (Villingen) GmbH Last updated: 13/03/2020
Replaces document: - Replaces the issue dated: 01/04.2018
Document type:translation of original German operating Document status: released
instructions BA 76 ..G..B00
Document title: BA 76 ..G..B00 Englisch

Operating Instructions BA 76..G..B00 // Last updated: 13/03/2020 // Page 3 of 34
1. General
1.1 Introduction
These operating instructions describe the operating principle and features of the spring-applied brake types
76 ..G..B00. The safety information provided in this manual must be strictly observed during the set-up of the
machine (e.g. motor) and during the start-up, operation and maintenance of the spring-applied brake.
Should any queries arise with respect to torques, torque variations, installation position, wear, wear reserve,
switching work, break-in conditions, release range, ambient conditions and the like, please contact Kendrion
(Villingen) and ask for clarification before starting to use the brake. Spring-applied brakes are not ready-to-use
devices, but are intended to be incorporated into or assembled with other equipment. Consequently, they will
be referred to as components in the following sections.
1.2 Standards and directives
The state-of-the-art brakes have been designed, built and tested in accordance with the requirements of DIN
VDE 0580 concerning electromagnetic devices and components.
The brakes are intended for use in dust and potentially explosive atmospheres. Brake versions protected to
IP56 are only designed for use in potentially explosive atmospheres. The brakes are suitable for ambient
temperatures between -20°C and +40°C. They are approved to the ATEX Directive (2014/34/EU).
Approvals: dust & explosion protection II Option: explosion protection II
II 2G Ex db eb IIC T5 Gb; -20°C ≤ Ta ≤ 40°C II 2G Ex db eb IIC T4 Gb
II 2D Ex tb lllC T95°C Db IP67 IP56; -20°C ≤ Ta ≤ 40°C
DMT 02 ATEX E 122 X DMT 02 ATEX E 122 X
IECEX BVS 11.0025X IECEX BVS 11.0025X
Being classified as “electromagnetic components”, spring-applied brakes are also subject to the Low Voltage
Directive 2014/35/EU. The user is required to employ suitable switching devices and controls to ensure use of
the brakes in accordance with EMC Directive 2014/30/EU.

Operating Instructions BA 76..G..B00 // Last updated: 13/03/2020 // Page 4 of 34
1.3 Declaration of Incorporation
(in accordance with Annex II, part 1, Section B of Machinery Directive 2006/42/EC)
We hereby declare that the products below comply with the essential health and safety requirements specified
in Annex I of Machinery Directive 2006/42/EC:
Annex I General Principles and Sections 1.1.2, 1.1.3, 1.1.5, 1.3.2, 1.5.1
The partly completed machinery must not be put into service until the final machinery into which it is to be
incorporated has been declared in conformity with the provisions of Machinery Directive 2006/42/EC. The
relevant technical documentation required for the partly completed machinery has been compiled in
accordance with Annex VII, part B of Machinery Directive 2006/42/EC. The manufacturer undertakes to submit
an electronic copy of the relevant technical documentation compiled for the partly completed machinery if
reasonably requested by national authorities.
Manufacturer: Kendrion (Villingen) GmbH Person authorized Dominik Hettich
Wilhelm-Binder-Str. 4-6 to compile the Kendrion (Villingen) GmbH
78048 Villingen-Schwenningen documentation: Wilhelm-Binder-Str. 4-6
Germany 78048 Villingen-Schwenningen
Germany
Applied harmonized standards and other technical standards and regulations:
EN 60529 Enclosure protection ratings
DIN VDE 0580 Electromagnetic devices and components
EN 60079-0:2012/A11:2013 Explosive atmospheres –
IEC 60079-0:2011 (modified) + IS1:2013 Part 0: Equipment – General requirements
EN 60079-1:2014 Explosive atmospheres –
IEC 60079-1:2014 Part 1: Equipment protection by flameproof enclosures “d”
EN 60079-7:2015 Explosive atmospheres –
IEC 60079-7:2015 Part 7: Equipment protection by increased safety “e”
EN 60079-31:2014 Explosive atmospheres –
IEC 60079-31:2013 Part 31: Equipment dust ignition protection by enclosure “t”
Product: Electromagnetically released spring-applied single-disc brake
Types:76 14G10B00 76 16G10B00 76 24G10B00 76 26G10B00
76 14G11B00 76 16G11B00 76 24G11B00 76 26G11B00
76 14G13B00 76 16G13B00 76 24G13B00 76 26G13B00
76 14G16B00 76 16G16B00 76 24G16B00 76 26G16B00
76 14G19B00 76 16G19B00 76 24G19B00 76 26G19B00
76 14G24B00 76 16G24B00 76 24G24B00 76 26G24B00
Kendrion (Villingen) GmbH Villingen Authorized signatory: .......................................................
13/03/2020 Dominik Hettich
(Head of Development)

Operating Instructions BA 76..G..B00 // Last updated: 13/03/2020 // Page 5 of 34
1.4 Declarations of conformity
1.4.1 ATEX Directive 2014/34/EU (equipment and protective systems intended for use in potentially
explosive atmospheres)
We hereby declare that the products below, specifically the product versions brought into circulation, have
been designed and built in accordance with the requirements of Directive 2014/34/EU (ATEX Directive). This
declaration will cease to be valid if modifications are made to the product without prior permission from the
manufacturer.
Manufacturer: Kendrion (Villingen) GmbH Person authorized: Dominik Hettich
Wilhelm-Binder-Str. 4-6 Kendrion (Villingen) GmbH
78048 Villingen-Schwenningen Wilhelm-Binder-Str. 4-6
Germany 78048 Villingen-Schwenningen
Germany
Applied harmonized standards and other technical standards and regulations:
EN 60529 Enclosure protection ratings
DIN VDE 0580 Electromagnetic devices and components
EN 60079-0:2012/A11:2013 Explosive atmospheres –
IEC 60079-0:2011 (modified) + IS1:2013 Part 0: Equipment – General requirements
EN 60079-1:2014 Explosive atmospheres –
IEC 60079-1:2014 Part 1: Equipment protection by flameproof enclosures “d”
EN 60079-7:2015 Explosive atmospheres –
IEC 60079-7:2015 Part 7: Equipment protection by increased safety “e”
EN 60079-31:2014 Explosive atmospheres –
IEC 60079-31:2013 Part 31: Equipment dust ignition protection by enclosure “t”
Product: Electromagnetically released spring-applied single-disc brake
Types:76 14G10B00 76 16G10B00 76 24G10B00 76 26G10B00
76 14G11B00 76 16G11B00 76 24G11B00 76 26G11B00
76 14G13B00 76 16G13B00 76 24G13B00 76 26G13B00
76 14G16B00 76 16G16B00 76 24G16B00 76 26G16B00
76 14G19B00 76 16G19B00 76 24G19B00 76 26G19B00
76 14G24B00 76 16G24B00 76 24G24B00 76 26G24B00
Notified body: DEKRA EXAM GmbH EC type-examination
Dinnendahlstr. 9 certificate: DMT 02 ATEX E 122 X
44809 Bochum
Germany IECEx certificate: IECEx BVS 11.0025X
Kendrion (Villingen) GmbH Villingen Authorized signatory: .......................................................
13/03/2020 Dominik Hettich
(Head of Development)

Operating Instructions BA 76..G..B00 // Last updated: 13/03/2020 // Page 6 of 34
1.4.2 Directives 2014/35/EU (Low Voltage Directive) and 2011/65/EU (RoHS Directive)
We hereby declare that the products below, specifically the product versions brought into circulation, have
been designed and built in accordance with the requirements of Directives 2014/35/EU (Low Voltage Directive)
and 2011/65/EU (RoHS Directive). The products are classified as category 11 equipment subject to Directive
2011/65/EU (RoHS Directive). This declaration will cease to be valid if modifications are made to the product
without prior permission from the manufacturer.
Manufacturer: Kendrion (Villingen) GmbH Person authorized: Dominik Hettich
Wilhelm-Binder-Str. 4-6 Kendrion (Villingen) GmbH
78048 Villingen-Schwenningen Wilhelm-Binder-Str. 4-6
Germany 78048 Villingen-Schwenningen
Germany
Applied harmonized standards and other technical standards and regulations:
EN 60529 Enclosure protection ratings
DIN VDE 0580 Electromagnetic devices and components
EN 60079-0:2012/A11:2013 Explosive atmospheres –
IEC 60079-0:2011 (modified) + IS1:2013 Part 0: Equipment – General requirements
EN 60079-1:2014 Explosive atmospheres –
IEC 60079-1:2014 Part 1: Equipment protection by flameproof enclosures “d”
EN 60079-7:2015 Explosive atmospheres –
IEC 60079-7:2015 Part 7: Equipment protection by increased safety “e”
EN 60079-31:2014 Explosive atmospheres –
IEC 60079-31:2013 Part 31: Equipment dust ignition protection by enclosure “t”
Product: Electromagnetically released spring-applied single-disc brake
Types: 76 14G10B00 76 16G10B00 76 24G10B00 76 26G10B00
76 14G11B00 76 16G11B00 76 24G11B00 76 26G11B00
76 14G13B00 76 16G13B00 76 24G13B00 76 26G13B00
76 14G16B00 76 16G16B00 76 24G16B00 76 26G16B00
76 14G19B00 76 16G19B00 76 24G19B00 76 26G19B00
76 14G24B00 76 16G24B00 76 24G24B00 76 26G24B00
Kendrion (Villingen) GmbH Villingen Authorized signatory: .......................................................
13/03/2020 Dominik Hettich
(Head of Development)
1.5 Manufacturer's liability
The manufacturer will not assume any responsibility for damage caused by failure to use the products in
accordance with their intended use or by failure to observe safety information and other instructions provided
in this manual. The information in this manual was correct and up-to-date before going to print. The information
contained herein shall not entitle users to raise claims with respect to components purchased at an earlier
date.

Operating Instructions BA 76..G..B00 // Last updated: 13/03/2020 // Page 7 of 34
2. Product description
2.1 Operating principle
The spring-applied single-disc brake is designed to operate dry. The force generated by an electromagnetic
field is utilized to overcome the braking effect produced by the spring force. The spring-applied single-disc
brake engages in unpowered condition and releases when AC voltage is applied. The form-fit connection
between the friction disc and hub and the connection of the hub with the machine shaft (e.g. motor shaft)
ensure that the torque generated by the spring-applied brake (brake torque) is reliably transmitted to the
machine (motor). Explosion-protected spring-applied single-disc brakes are characterized by the fact that all
components that may ignite explosive mixtures are placed in an enclosure. This enclosure is designed to
withstand the specified test pressure in case the mixture explodes inside the enclosure. It also ensures that
mixtures outside the enclosure are not affected by the explosion.
2.2 Brake design
The solenoid housing (1.1) of the spring-applied single-disc brake accommodates the firmly fitted field coil
(1.2) with wire leads. The wire leads are connected to the terminal block (19) inside the junction box (25). The
flange (3) and friction plate (33) are screwed to the solenoid housing (1.1) by means of socket head cap screws
(22). The solenoid housing (1.1) is pressure-sealed by a cover (7) that is attached with socket head cap screws
(20). Owing to the spring force generated by the compression springs (4 & 35), the friction disc (5) is pressed
over the armature (2) against the friction plate (33) and flange (3) to generate the braking effect of the spring-
applied brake. The friction disc (5) and hub (17), which form the rotating part of the spring-applied brake, are
connected with the shaft to be braked. The friction disc (5) features a square socket and can be moved on the
hub (17) in axial direction. Spacer sleeves (6) are provided to adjust the air gap 's'. The customer-specific
connecting cable can be introduced into the junction box (25) through a cable gland (30) (M20x1.5). When AC
voltage is applied to the built-in bridge rectifier of the spring-applied single-disc brake, the force of the
electromagnetic field thus generated counteracts the spring force. The armature (2) is released and the braking
action is neutralized. The shaft to be braked is not exposed to any axial force by the brake. The spring-applied
single-disc brake is equipped with a redundant thermoswitch system (2x2 thermoswitches) (11 & 12) and with
a microswitch (13)1). The microswitch (13) is provided to prevent machine (e.g. motor) start-up before the brake
has been released. The four (2x2) thermoswitches (11 & 12) are connected in series with the microswitch (13).
They interrupt the control circuit of the machine (e.g. motor) as soon as the maximum permitted brake
temperature is exceeded. When using brakes with hand release (29), openings must be provided in the part
enclosing the brake (e.g. fan cover) so that the hand release can be installed. The hand release (29)2) allows
the brake to be released manually (e.g. in case of power failure).
1) Brake types with microswitch.
2) Brake types with hand release.

Operating Instructions BA 76..G..B00 // Last updated: 13/03/2020 // Page 8 of 34
List of reference numerals in Fig. 9/1:
1.1 Solenoid housing 13.3 Angle 25 Junction box
1.2 Field coil 13.4 Countersunk screw 26 Cover
2 Armature 13.5 Plate 27 Socket head cap screw
3 Flange 13.6 Socket head cap screw 28 Spring washer
4 Compression spring 13.7 Connecting cable (microswitch) 29 Hand release
5 Friction disc 14 Circlip (outer ring) 29.1 Cam
6 Spacer sleeve 15 Circlip (inner ring) 30 Cable gland
7 Cover 16 O-ring 30.1 Cap nut
8 Mounting surface 17 Hub 30.2 Connector sleeve
9 Flat seal 18 Deep groove ball bearing 30.3 Sealing ring
10 Mounting screw 19 Terminal block 31 Locknut
11 Thermoswitch (x2) 20 Socket head cap screw 32 Socket head cap screw
12 Thermoswitch (x2) 21 Spring washer 33 Friction plate
13 Microswitch 22 Socket head cap screw 34 Rating plate
13.1 Locknut 23 Spring washer 35 Compression spring
13.2 Set screw 24 O-ring 36 Duct
Table 8/1: List of reference numerals for spring-applied single-disc brake

Operating Instructions BA 76..G..B00 // Last updated: 13/03/2020 // Page 9 of 34
Fig. 9/1: Spring-applied single-disc brake 76 26G..B00
Rated air gap

Operating Instructions BA 76..G..B00 // Last updated: 13/03/2020 // Page 10 of 34
3. Installation
3.1 Mechanical installation
Slip the hub (17) of the spring-applied single-disc brake on a shaft (tolerance
h6) provided with a feather key to DIN 6885, sheet 1. As the hub (17) is firmly
fitted to the brake, it need not be axially secured on the machine shaft (e.g.
motor shaft). Ensure that no radial forces act on the deep groove ball bearing
(18) during installation and operation (vertical installation, if possible) and that
the hub (17) is not exposed to any permanent axial force (e.g. exerted by shaft
shoulder) after installation has been completed. The spring-applied brake is
centred through the deep groove ball bearing (18) of the hub (17). Mounting
screws (10) are provided to attach the spring-applied single-disc brake to the
mounting surface (8) of the machine (e.g. motor). Before starting installation
work, insert the O-ring (16) into the groove provided in the solenoid housing
(1.1). Tighten the mounting screws (10) evenly in several steps and make
sure not to exceed the specified tightening torque (see Table 10/1).
Note!
Ensure that the deep groove ball bearing (18) is not distorted during
installation of the spring-applied single-disc brake and that the shaft rotates easily when the brake is released.
Check that there are no grinding sounds.
Size
10
11
13
16
19
24
L [mm] 70 70 90 90 100 100
MA[Nm] 9.7 9.7 24 24 45 45
Table 10/1: Hub (17) dimensions; tightening torques for mounting screws (10)
Check that the mounting surface (8) meets the following requirements before installing the brake:
•Axial runout relative to the shaft end to EN 50347
(measuring radius = hole circle)
•Material: steel, aluminium, cast iron – with excellent thermal conductivity
•Absence of oil and grease
Radial runout of the shaft end relative to the mounting surface (8) to EN 50347
Attention!
The specified axial runout of the mounting surface (8) relative to the shaft end and the specified radial runout
of the shaft end must be strictly observed in order not to reduce the reliability and service life of the spring-
applied single-disc brake. Before installing the brake, the shaft end must be slightly brushed with a high-
temperature grease (e.g. Copaslip). This is essential to facilitate brake removal if maintenance work needs to
be carried out at a later date.
Attention!
The MAtightening torque specified for the mounting screws (10) must be strictly observed. Tighten the
mounting screws (10) evenly in several steps.