Description Of The Equipment; Types Of Arms, Including Accessories; Accessories And Special Applications For The Dfa 127; Low Energy Drive (Low Energy) - Record DFA 127 User Manual

1

Description of the equipment

The record DFA 127 (Full Power) is a compact, self-monitoring, microprocessor-
controlled swing door operator (abbreviated to DFA). With its many special and
additional functions, it is suitable for a very wide application spectrum. The path of
every door movement is controlled by the microprocessor, which evaluates the cur-
rent door position, the door speed and the final position at every instant and pre-
cisely calculates the optimum motion. This makes the familiar end-stops, jerky
braking actions, creep speeds etc. unnecessary. Depending on the door width, the
corresponding spring range must be selected in the range of EN 4 to EN 6 (accord-
ing to European Norm EN 1154). Safety is also additionally increased by the use of
a redundant force limitation.

Low energy drive (Low Energy)

In the parameterisation of the Low Energy door type, the DFA acts as an automatic
low energy operator. The opening and closing speeds are limited and the operator
is more sensitive in case of a collision. The closing action takes place using spring
force and reduced kinetic energy. To prevent unintentional or malicious modifica-
tions to the program, user access to the parameters is blocked.
The set values for the permitted speeds are indicated in DIN 18650-2. They are
calculated depending ion the weight of the door leaf and the width of the door.

1.1 Types of arms, including accessories

The power transmission from the motorisation unit to the door leaf is carried out by
a set of arms. Depending on the installation situation, the optimal solution can be
selected from two different types of arms (standard or slide arm). Standard arms
are available in different lengths for various lintel depths. By using optional exten-
sion pieces, so-called adaptors, different lintel heights can be compensated.

1.2 Accessories and special applications for the DFA 127

5 operational modes can be remotely selected with the external BDE-D, which is
available as a flush-mounted or surface-mounted model.
Master / Slave
In the Master / Slave operation, two DFA 127 can be sequentially controlled without
additional mechanical door locking systems.
Not suitable for fire protection doors!
Extended operator casing
The installation of additional sensor devices is possible using an extended operator
casing.
Flexible cable connection
With the flexible cable connection, the wiring of DFAs that are mounted on the
moving door leaf can be carried out in an elegant manner.
5 operational modes can be remotely selected with the external BDE-D, which is
available as a flush-mounted or surface-mounted model.
Page 2 of 55 12/2006 Rev. B Manual DFA 127 Full Power