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2.4
Configuring notes
To guarantee safe operation, the safety-related brake must be configured on an application-
specific basis.
When doing this, braking torque tolerances, thermal load capacity of the brake, the speed
limits of rotors and active environmental influences must be carefully taken into
consideration.
The safety-related brakes may only be used as a holding brake with emergency stop function.
The brake may only be switched (opened or closed) when it is at a standstill. Emergency
stops are an exception to this rule. A maximum of 2000 emergency stop operations are
permissible over the complete service life of the brake. The brake holding torque must be
used when selecting and dimensioning brakes (M4 torque).
The safety characteristic values of the safety-related brake are applicable under the
precondition that the system is designed so that 80% of the rated brake torque is adequate
for the safety function. This must be carefully ensured when selecting and dimensioning the
brake.
When used in safety-related application, rotors must always be replaced after 10 years.
For technical reasons, the specified rated torques can generally only be reliably achieved after
a brief run-in procedure. The run-in procedure has been completed after applying a braking
energy of 5xW
for the calculation are provided in the configuration notes for the brake provided in Catalog
D50.1.
However, actual torques can deviate from the specified braking torques as a result of
fluctuating properties of the organic friction lining and changing environmental conditions.
These must be taken into account by applying the appropriate safety margins when selecting
and dimensioning the brake. Especially in humid conditions and fluctuating temperatures, an
increased break loose torque can occur after long non-operational periods.
The friction lining must be reactivated at regular intervals if the brake is solely used as
holding brake without any dynamic load being applied. You can achieve this by applying
friction work, e.g. by braking from moderate motion or slow movement. This should be
repeated several times.
The safety application involved does not take into account any friction lining wear or the load
on the brake as the result of an emergency stop. These points must be separately checked
carefully when configuring the brake.
Further, all of the restrictions relating to the standard and low-wear friction linings
(permissible frequency of operation, permissible work as a result of frictional force,
temperature range, etc.) specified in the catalog and these operating instructions strictly
apply.
The geared motor complies with the requirements of the Machinery Directive 2006/42/EC.
The geared motor is certified for use at installation altitudes up to 1 000 m above sea level.
The safety-related brake is certified for ambient temperatures from -20 °C up to +40 °C, for
simultaneous motor utilization according to temperature Class 155 (F) as a maximum.
SIMOGEAR 2332 - Safety-related brake
Operating Instructions, 11/2021, A5E51390096A/RS-AA
distributed over 10 braking operations. The formulas and values required
1max
General information and safety instructions
2.4 Configuring notes
23
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