4
Mechanical installation
Options
Operating Instructions – AC Motors
54
4.10
Options
4.10.1
/HR, /HF Manual brake release
The option manual brake release /HR, /HF is preinstalled and set at the factory for
some brake sizes. If your drive was not delivered with manual brake release and you
wish to retrofit it, observe the instructions in chapter "Retrofitting the /HR, /HF manual
brake release" (→
172).
Activating and loosening the /HF manual brake release
You can use the option /HF (lockable manual brake release) to continuously mechan-
ically release the BE.. brake with a set screw and a releasing lever.
On delivery, the set screw is inserted far enough to not fall out and to not affect the
brake performance. The set screw is self-locking. This prevents it from unintended
turning in or from falling out.
In case of BE03 brakes, the set screw is stored in the grommets between the stator
fins.
WARNING
No brake function due to activated manual brake release.
Severe or fatal injuries.
•
Before startup, make sure that the hand lever has been removed or secured
against unintentional activation to prevent unintentional brake release during
operation.
Activating the /HF manual brake release with BE03 brake
Proceed as follows:
1. Screw in the set screw until there is no more clearance at the releasing lever.
2. To release the brake manually, screw in the set screw by 1/2 – 1 turn.
Activating the /HF manual brake release with BE05 – BE122 brake
Proceed as follows:
1. Screw in the set screw until there is no more clearance at the releasing lever.
2. To release the brake manually, screw in the set screw by 1/4 – 1/2 turn.
Loosening the /HF manual brake release with BE03 brake
Proceed as follows:
1. Remove the set screw completely from the thread. Fasten the set screw between
the stator fins with both grommets.
Loosening the /HF manual brake release with BE05 – BE122 brake
Proceed as follows:
1. Loosen the set screw at least until the floating clearance of the manual brake re-
lease has completely returned, see chapter "Retrofitting the /HR, /HF manual
brake release".
25851535/EN – 02/2019
Содержание DR 315 Series
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