Kendrion 7760016A00-0004, Руководство пользователя

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Operating Instructions BA 77 600..A00 // Last updated: 13/03/2020 // Page 25 of 33
8.2.1 Set-up
Requirements in terms of the permitted number of switching operations per hour and the maximum switching
work per switching operation specified in the technical specifications must be strictly observed during the set-
up of machines and plant (inching mode). Failure to observe these instructions may irreversibly diminish the
braking effect and cause malfunctions. The operating conditions at normal rating specified in these Operating
Instructions refer to DIN VDE 0580. The protection type is based on EN 60529. In case of deviations from
these requirements, special precautions may have to be taken after consultation with the brake manufacturer.
If vertical brake operation is envisaged, any special requirements must be agreed with the manufacturer. Bear
in mind that the friction disc may freeze if ambient temperatures fall below -5°C or if the brake remains
unpowered for prolonged periods of time. In this case, special precautions must be taken after consultation
with the manufacturer.
8.2.2 Set-up and start-up
The brakes must not be put into operation when:
• power supply cables/wires or connections are damaged.
• the solenoid housing or coil sheath is damaged.
•
other defects are suspected.
8.2.3 Installation
The voltage and voltage type specified on the rating plate must be strictly observed when connecting the
brakes described in these Operating Instructions. Sufficient heat dissipation must be ensured when the brake
is fitted to or incorporated into other equipment. Adequate precautions must be taken to avoid overvoltage
during disconnection or voltage peaks. The magnetic field of the products may cause interference outside the
brake or even feedback to the brake in case of adverse installation conditions. Should you have queries
concerning mounting and fitting conditions, please contact the brake manufacturer and ask for clarification.
Adequate safety measures (DIN 31000; DIN VDE 0100-420) must be taken by the brake user to avoid hazards
to persons and animals or damage to equipment caused by:
•
direct or indirect effects of electromagnetic fields,
• heated components,
• mobile parts.
8.2.4 Operation
Make sure that live components such as plug contacts or the field coil are not exposed to water. The brake
cable connections must not be crushed, squeezed or exposed to mechanical loads. Make absolutely sure that
the friction surfaces of the friction elements are not contaminated with grease, oil or other liquids to avoid
substantial torque reduction. Bear in mind that the original torque cannot be restored even if the friction
surfaces are cleaned after contact with liquids. The gradual brake wear and the resulting torque reduction of
spring-applied brakes must be taken into consideration during set-up. Due to the diverse ambient conditions
in which the brakes may be used, always check that the brake is in perfect working order before start-up.
Torque reductions cannot be excluded if the brake is used for applications where only minimum friction work
is required. In such cases, the user should ensure that the brake occasionally performs sufficient friction work.
Operation of the brake as pure holding brake without friction work is only allowed after prior consultation with
the manufacturer. If brakes equipped with hand release lever are used, the lever must only be moved up to
the release position in order to avoid deformation or breaks.