Construction And Function; Construction; Functions - Record DFA127 Instructions Manual

5

Construction and Function

5.1

Construction

Key:
1 Mains connection terminals
2 Fine-wire fuse
3 NET power supply
4 ATM drive unit
5 STG control unit
6 STG connection terminals
7 Motor print MOT
8 ATE drive unit terminals
5.2

Functions

The record DFA 127 has been designed to close without electrical power. It can be easily
opened by hand and closes using the energy stored in the spring, with the motion damped
by the motor acting as a generator.
If the door operator is connected to the mains power, the opening and closing movements
will be assisted by the motor.
The following functions are provided exclusively for the safety of the user:
Collision detection: If the door strikes an obstacle while opening, it stops immediately and
stores the position of the impact. During the time delay, the drive briefly tries to reach the
open position. Once the time delay has expired, the door closes, and, when next opened,
the door passes the impact position very carefully in slow mode. This prevents a further vio-
lent impact.
Reversing:If the door strikes an obstacle when closing, it is reopened immediately.
102-127108955
Construction and Function
9 Slide switch in rotation direction
10 Multifunctional switch on STG
11 Closing spring
12 Vision panel, adjust. spring tension
13 Adjusting screw for spring tension
14 Connectors for arms (both sides)
15 Standard switch BDI
16 Status signal and Reset button
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