Installation and Operational Instructions for BRE250 and BRE400
ROBA-stop
®
-M brake Type 891.
0_ _._
Sizes 250 and 500
(E070 09 203 001 4 EN)
31/10/2019 TK/MW
Chr. Mayr GmbH + Co. KG
Eichenstraße 1, D-87665 Mauerstetten, Germany
Phone: +49 8341 804-0, Fax: +49 8341 804-421
Page 4 of 20
your reliable partner
Safety Regulations
These Safety Regulations are user hints only and may not be complete!
General Guidelines
DANGER
Danger of death!
Do not touch voltage-carrying lines and compo-
nents.
Brakes may generate further risks, among other things:
Hand injuries
Danger of
seizure
Contact with
hot surfaces
Magnetic
fields
Severe injury to people and damage to objects may result if:
the electromagnetic brake is used incorrectly.
the electromagnetic brake is modified.
the relevant standards for safety and / or installation condi-
tions are ignored.
During the risk assessment required when designing the ma-
chine or system, the dangers involved must be evaluated and re-
moved by taking appropriate protective measures.
To prevent injury or damage, only specialist personnel are
allowed to work on the components.
They must be familiar with the dimensioning, transport, installa-
tion, inspection of the brake equipment, initial operation, mainte-
nance and disposal according to the relevant standards and reg-
ulations.
Before product installation and initial operation,
please read the Installation and Operational In-
structions carefully and observe the Safety Reg-
ulations. Incorrect operation can cause injury or
damage. At the time these Installation and Oper-
ational Instructions go to print, the electromagnetic brakes ac-
cord with the known technical specifications and are operation-
ally safe at the time of delivery.
Technical data and specifications (Type tags and documen-
tation) must be followed.
The correct connection voltage must be connected according
to the Type tag and wiring guidelines.
Check electrical components for signs of damage before put-
ting them into operation. Never bring them into contact with
water or other fluids.
Please observe the EN 60204-1 requirements for electrical
connection when using in machines.
Only carry out installation, maintenance and re-
pairs in a de-energised, disengaged state and
secure the system against inadvertent switch-
on.
Guidelines for Electromagnetic Compatibility
(EMC)
In accordance with the EMC directive 2014/30/EU, the individual
components produce no emissions. However, functional compo-
nents e.g. mains-side energisation of the brakes with rectifiers,
phase demodulators, ROBA
®
-switch devices or similar controls
can produce disturbance which lies above the allowed limit val-
ues. For this reason it is important to read the Installation and
Operational Instructions very carefully and to keep to the EMC
directives.
Application Conditions
The catalogue values are guideline values which
have been determined in test facilities. It may be
necessary to carry out your own tests for the in-
tended application. When dimensioning the
brakes, please remember that installation situa-
tions, braking torque fluctuations, permitted friction work, bed-
ding-in condition / conditioning of the brake linings and wear as
well as general ambient conditions can all affect the given val-
ues. These factors should therefore be carefully assessed, and
alignments made accordingly.
Mounting dimensions and connection dimensions must be
adjusted according to the size of the brake at the place of in-
stallation.
Use of the brake in extreme environmental conditions or out-
doors, directly exposed to the weather, is not permitted.
The brakes are designed for a relative duty cycle of 100 %.
The braking torque is dependent on the current bedding-in
condition of the brake. Bedding in / conditioning of the friction
linings is necessary.
The brakes are only designed for dry running. The torque is
lost if the friction surfaces come into contact with oil, grease,
water or similar substances or any other foreign bodies.
The surfaces of the outer components have been phos-
phated manufacturer-side to form a basic corrosion protec-
tion.
CAUTION
The rotors may rust up and seize up in corro-
sive ambient conditions and / or after longer
downtimes.
The user is responsible for taking appropriate
countermeasures.
Dimensioning
Attention!
When dimensioning the brake, please take into consideration
whether a load torque is present when selecting the protection.
Load torques reduce the deceleration torque available.
Load torques may increase the output speed:
during a possible processing time in the controls
during the brake downtime
When calculating the friction work, please observe that the brake
nominal torque is subject to a tolerance.
