Installation and Operational Instructions
for ROBA-stop
®
-silenzio
®
Type 896.213.30
Sizes 500 – 1800
Chr. Mayr GmbH + Co. KG Tel.: +49 8341 804-0 E079 10 228 000 471
Eichenstraße 1 Fax: +49 8341 804-421 Page 3 of 17
D-87665 Mauerstetten www.mayr.com
Germany E-Mail: info@mayr.com 21/06/2012 TK/HW/GF/SU
Safety Regulations
These Safety Regulations are user hints only and may not be complete!
General Guidelines
Danger of death!
Do not touch voltage-carrying cables and
components.
Brakes may generate further risks, among other things:
Contact with
hot
surfaces
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
conditions are ignored.
During the risk assessment required when designing the
machine or system, the dangers involved must be evaluated and
removed by taking appropriate protective measures.
To prevent injury or damage, only professionals and
specialists are allowed to work on the devices. They must be
familiar with the dimensioning, transport, installation, inspection
of the brake equipment, initial operation, maintenance and
disposal according to the relevant standards and regulations.
Before product installation and initial operation,
please read the Installation and Operational
Instructions carefully and observe the Safety
Regulations. Incorrect operation can cause injury
or damage.
At the time these Installation and Operational Instructions go to
print, the electromagnetic brakes accord with the known
technical specifications and are operationally safe at the time of
delivery.
Technical data and specifications (Type tags and
documentation) 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
putting 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
repairs in a de-energised, released state and
secure the system against inadvertent switch-
on.
Guidelines for Electromagnetic Compatibility
(EMC)
In accordance with the EMC directive 2004/108/EC, the
individual components produce no emissions. However,
functional components 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 values. 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
intended application. When dimensioning the
brakes, please remember that installation
situations, torque fluctuations, permitted friction work, run-in
behaviour and wear as well as general ambient conditions can
all affect the given values. 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
installation.
Use of the brake in extreme environmental conditions or
outdoors, directly exposed to the weather, is not permitted.
The brakes are designed for a relative duty cycle of 60 %.
The max. permitted switching frequency is 180 1/h.
These values are valid for intermittent operation S3 60 %.
The permitted surface temperature on the brake flange
must not exceed 70 °C at a max. ambient temperature of
40 °C.
The overexcitation time should be at least double the
separation time t
2
.
For Sizes 500 and 800, the following applies:
A duty cycle of > 60 % leads to higher temperatures, which
cause premature ageing of the noise damping and
therefore lead to an increase in switching noises.
The braking torque is dependent on the present run-in
condition of the brakes.
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 foreign bodies.
The surfaces of the outer components have been zinc
phosphated manufacturer-side to form a basic corrosion
protection.
The rotors may rust up and seize up in
corrosive ambient conditions and/or after longer
downtimes.
The user is responsible for taking appropriate
counter measures.
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