Product description
INTORQ | BA 14.0217 | 09/2019
14
3
Product description
3.1
Proper and intended usage
3.1.1
Standard applications
INTORQ components are intended for use in machinery and facilities. They may only be used for purposes
as specified in the order and confirmed by INTORQ. The INTORQ components may only be operated under
the conditions specified in these Operating Instructions. They may never be operated beyond their specified
performance limits. The technical specifications (refer to Technical specifications) must be followed to com-
ply with the proper and intended usage. Any other usage is consider improper and prohibited.
3.1.1.1
ATEX
The following is required for safely operating the INTORQ spring-applied brakes BFK458 in hazardous
areas, device category 3, zone 2/22:
The INTORQ spring-applied brakes BFK458 described may only be used in normal operations within the
following areas:
¾
Where an explosive atmosphere caused by gases, vapors, mists or swirled up dust is not expected,
¾
Or where, if these conditions nevertheless occur, then the use under these conditions may only take
place rarely and for a short period of time in the sense of the ATEX guideline 2014/34/EU.
INTORQ spring-applied brakes must never be operated outside the performance limits corresponding to
ATEX brakes!
NOTICE
If the spring-applied brake shall be used as a holding/parking brake (refer to the name plate),
all braking torques listed in the BFK458 spring-applied brake catalog are permissible.
DANGER
Danger of explosion
Increased temperatures on the surfaces and in the friction gap can result when the max-
imum friction work and operating frequencies specified by INTORQ are exceeded. These
can lead to ignition.
¾
Operation is only permitted within the specified specifications.
The following must always be observed when installing ATEX brakes:
¾
The proper functioning and correct dimensioning of the brake must be ensured before it is put into op-
eration. The correct relation between the brake, motor, control and loads must be checked.
¾
If the switching times of the brake in conjunction with the control of the drive is not properly taken into
consideration, the rotational speed could increase when the motor is switched off. As a result, the brak-
ing procedure would be carried out at a much higher speed and higher friction work than assumed in
the preliminary design. This would result in higher temperatures, which would then pose a risk of igni-
tion.
