Installation and operational instructions for
ROBA
®
-servostop
®
Type 8982.00_01
Size 40
– 100
(B.8982.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 5 of 27
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2.3
Intended Use
mayr
®
-brakes have been developed, manufactured and
tested in compliance with the DIN VDE 0580 standard
and in accordance with the EU Low Voltage Directive as
electromagnetic components. During installation, opera-
tion and maintenance of the product, the requirements for
the standard must be observed.
mayr
®
-brakes are for use in machines and systems and
must only be used in the situations for which they are or-
dered and confirmed. Using them for any other purpose is
not allowed.
2.4
Handling
Before installation
, the brake must be inspected and
found to be in proper condition (visual inspection). The
following are not considered as being representative of a
proper condition:
External damage
External oiling
External contamination
The brake function must be inspected both
once attach-
ment has taken place
as well as
after longer system
downtimes
, in order to prevent the drive starting up
against possibly seized linings.
2.5
User-implemented Protective Measures
Brakes with a nominal voltage ≤ 50 V (VDE 0580)
must only be connected to a current source in accord-
ance with IEC 60364-4-41 Extra-Low Voltage SELV /
PELV.
Please cover moving parts to protect
against injury
through seizure
.
Place a cover on the magnetic part to protect
against
injury through high temperatures
.
Protection circuit:
When using DC-side switching,
the coil must be protected by a suitable protection cir-
cuit according to VDE 0580, which is integrated in
mayr
®
-rectifiers. To protect the switching contact from
consumption when using DC-side switching, addi-
tional protective measures are necessary (e.g. series
connection of switching contacts). The switching con-
tacts used should have a minimum contact opening of
3 mm and should be suitable for inductive load switch-
ing. Please make sure on selection that the rated volt-
age and the rated operating current are sufficient. De-
pending on the application, the switching contact can
also be protected by other protection circuits (e.g.
mayr
®
-spark quenching unit, half-wave and bridge
rectifiers), although this may of course then alter the
switching times.
Take precautions
against freeze-up of the fric-
tion surfaces
in high humidity and at low temper-
atures.
2.6
Dimensioning Other Machine Elements
The effects of the maximum and
minimum braking torque on the other
machine components must be observed
in order to provide sufficient
dimensioning. If other brakes are
positioned in the drive line, and if the
braking times of the different brakes
overlap, the loads will add up.
