Construction and Function
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Construction and Function
Construction
Key:
1 Mains connection terminals 9 Slide switch in rotation direction
2 Fine-wire fuse 10 Multifunctional switch on STG
3 NET power supply 11 Closing spring
4 ATM drive unit 12 Vision panel, adjust. spring tension
5 STG control unit 13 Adjusting screw for spring tension
6 STG connection terminals 14 Connectors for arms (both sides)
7 Motor print MOT 15 Standard switch BDI
8 ATE drive unit terminals 16 Status signal and Reset button
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.
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