Mayr ROBA-servostop 8980.00 00 Operational Instructions Download Page 24

Installation and operational instructions for 
ROBA

®

-servostop

®

 Type 8980.00_00 

Sizes 50 - 160

 

(B.8980.EN)

 

06/10/2022 GF  

Chr. Mayr GmbH + Co. KG

 

 

Eichenstraße 1, D-87665 Mauerstetten

 

 

Phone: +49 8341 804-0, Fax: +49 8341 804-421

 

Page 24 of 26 

www.mayr.com

, E-Mail

[email protected]

 

your reliable partner

 

11 

Maintenance / Inspection 

 
ROBA

®

-servostop

®

 brakes are mainly maintenance-free.  

However, the friction linings of the rotor (4) are subject to 
operational wear. The friction lining pairing is robust and 
wear-resistant. This ensures a long service lifetime of the 
brake. 
If the rotor (4) does become worn due to the high total 
friction work, and the function of the brake can no longer 
be guaranteed, the brake must be replaced. 
 

12 

Wear 

The wear condition of the rotor (4) is determined by 
measuring the release voltage. The release voltage may 
be up to max. 90 % of the nominal voltage on a warm 
brake (= maximum temperature in case of application). 
The amount of wear on the rotor (4) must be examined 
during the regular inspection intervals: 
 
Wear times are influenced by many factors and can vary 
substantially. The required inspection and maintenance 
intervals must be calculated individually according to the 
system manufacturer's planning documentation. 
 

12.1  Cleaning:  

 

 

Do not clean the brake using compressed 
air, brushes or similar devices! 

  Wear safety gloves / safety goggles. 

  Use a suction system or wet towels to clean off the 

brake dust. 

  Do not inhale brake dust. 

  In case of dust formation, a dust mask FFP 2 is 

recommended. 

 

 

13 

De-installation 

 

WARNING  Load crash possible 

The brake must be load-free. 
Please check that it is load-free before 
de-installation. 
 

  Provide security in the danger zone. 

  Support the load 

 
De-installation takes place by following the "Installation 
Procedure" section 9.3 backwards. 
 
 

14 

Information on the Components 

The 

friction material

 contains different inorganic and 

organic compounds, which are integrated into a system of 
hardened binding agents and fibers. 

Possible hazards: 

No potential dangers have been recognized so far when 
the brake is used according to its intended purpose. 
When grinding in the brake linings (new condition) and 
also in case of EMERGENCY STOP braking actions, 
functional wear can occur (wear on the friction linings); on 
open brake designs, fine dust can be emitted. 
 

Classification: Hazardous property

 

Attention: H-classification: H372

 

 

Protective measures and rules of behavior: 

Do not inhale dusts. 
Vacuum the dusts at the point of origin (tested suction 
devices, tested filters acc. DIN EN 60335-2-69 for dust 
classes H; maintenance of the suction devices and filter 
replacement at regular intervals). 
If local dust suction is not possible or is insufficient, the 
entire work area must be ventilated using appropriate 
technology. 

Additional information: 

This friction lining (asbestos free) is not a dangerous 
product in terms of the EU Directive. 
 

 

Summary of Contents for ROBA-servostop 8980.00 00

Page 1: ...Sizes 50 160 Issue status 2022 10 Translation of the Original Operational Instructions B 8980 EN Copyright by mayr power transmission All rights reserved Reprints and copies even extracts are only pe...

Page 2: ...sition 13 5 1 7 Pre requisites for Product Application 13 5 2 Technical Data 14 5 2 1 General 14 5 2 2 Tightening torques 15 5 2 3 Friction Work 15 5 2 4 Permitted hub bore 15 5 2 5 Dimensions 16 5 2...

Page 3: ...designation The braking torque lies within the stated braking torque tolerances The braking torque tolerance is stated in of the braking torque Standard Load torque Holding torque which is required to...

Page 4: ...ements To prevent injury or damage only professionals and specialists are allowed to work on the components They must be familiar with the dimensioning transport installation initial operation mainten...

Page 5: ...age 50 V VDE 0580 must only be connected to a current source in accordance with IEC 60364 4 41 Extra Low Voltage SELV PELV Please cover moving parts to protect against injury through seizure Place a c...

Page 6: ...principles for design Risk assessment and risk reduction DIN EN 61000 6 4 Interference emission EN ISO 13849 2 Safety of machinery Safety related parts of control systems Validation 3 2 Liability The...

Page 7: ...this product is not suitable for use in areas where there is a high danger of explosion For application of this product in areas where there is a high danger of explosion it must be classified and mar...

Page 8: ...ording to the Low Voltage Directive 2014 35 EU only for voltage 75 V and or RoHS Directive 2011 65 EU with 2015 863 EU 3 6 Identification Type tag mayr components are clearly marked and described on t...

Page 9: ...he function principle applied here accords with the application of the energy separation principle in accordance with EN ISO 13849 2 Appendix A 2 List of basic safety principles The reliable condition...

Page 10: ...eliable partner 4 3 Views Information regarding the strand 2x SPEC 44 Conductor cross section Sizes 50 80 AWG 24 or 0 25 mm Sizes 90 160 AWG 20 or 0 6 mm Strand diameter Sizes 50 80 1 02 mm Sizes 90 1...

Page 11: ...04 421 Page 11 of 26 www mayr com E Mail public mayr mayr com your reliable partner 4 4 Parts List Only use mayr original parts Item Name 1 Coil carrier assembly with coil 2 Armature disk 3 Thrust spr...

Page 12: ...have been provided with a phosphated or a gas nitrated surface manufacturer side to form a basic corrosion protection CAUTION The rotors 4 may rust up and seize up in corrosive ambient conditions and...

Page 13: ...armature disk is switched the impact pulse from the armature disk onto the coil carrier or the armature disk onto the rotor 4 generates a switching noise which can reach approx 90 dB A The brake is no...

Page 14: ...For higher temperatures please consider the following braking torque reductions 60 C to 80 C 10 reduction 80 C to 100 C 20 reduction 100 C to 120 C 30 reduction For temperatures of 20 to 0 C Observe...

Page 15: ...500 2100 3500 Dynamic braking torque restrictions Mdyn min in the speed range Mdyn min MN n rpm 0 5000 0 4000 0 3600 0 3200 0 3000 0 2500 0 2000 0 1700 0 1500 Mdyn min MN 15 n rpm 5000 7500 4000 6200...

Page 16: ...max 5 12 15 20 20 25 30 35 45 50 D 46 56 64 72 80 90 112 132 150 G 25 28 38 38 45 55 62 85 90 H 52 62 72 80 90 102 124 147 166 L 31 15 31 15 34 25 35 25 39 3 42 4 44 4 53 4 57 45 I 0 2 7 4 8 9 2 9 2...

Page 17: ...Braking torque ML Load torque t1 Connection time t11 Response delay on connection t2 Separation time UN Coil nominal voltage coil voltage These values are mean values referring to a nominal air gap a...

Page 18: ...nd liquids such as oils can have a negative effect on the braking function Application in enclosed buildings In tropical regions in high humidity with long downtimes and sea climates only after taking...

Page 19: ...tic disturbance or potential equalization for example 7 2 Fuse Element To protect against damage from short circuits please add suitable fuse elements to the mains cable supply line 7 3 Switching Beha...

Page 20: ...C side switching the coil must be protected by a suitable protection circuit according to VDE 0580 which is integrated in mayr supply and monitoring modules To protect the switching contact from consu...

Page 21: ...e possible to release the brake This can lead to continuous grinding or an unintended drop out of the armature disk 2 The tensile strength Rm of the attachment wall must be at least 300 N mm Lower str...

Page 22: ...responsible for providing the cap screws 8 Sizes and tightening torques see 5 2 2 4 Mount the hub 6 onto the shaft with inserted key bring it into the correct position as per installation dimension I...

Page 23: ...un in during operation In case of longer storage or downtime the brakes may have to be run in to achieve the specified braking torque 10 3 Brake Inspection Before Initial Operation Braking torque insp...

Page 24: ...loves safety goggles Use a suction system or wet towels to clean off the brake dust Do not inhale brake dust In case of dust formation a dust mask FFP 2 is recommended 13 De installation WARNING Load...

Page 25: ...able and all other steel components Steel scrap Code No 160117 Brake rotor steel or aluminum pads with friction linings Brake linings Code No 160112 Guidelines on the WEEE Directive 2012 19 EU Avoidan...

Page 26: ...s Breakdowns Malfunction Possible Causes Solutions Brake does not release Incorrect voltage on rectifier No power Air gap too large worn rotor Coil interrupted Screws in thread s1 too long Apply corre...

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