4.1 Construction
Key to illustration:
1 Mains connection terminals switch
9* Slide switch S1 (rotating direction)
2 Fine-wire fuse
10* Multifunctional switch MF on STG
3 Power supply NET
11 Closing spring
4 Drive unit ATM
12 Vision panel adjust. spring tension
5 Control unit STG
13* Adjusting screw for spring tension
6 Connection terminals control unit
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
⚠ Do not change any settings or adjustments! These operations are reserved exclusively for trained and authorized persons.
4.2 Components
The record DFA 127 swing door operator forms part of an electromechanical swing door system and comprises the following main components:
- Control unit STG
- Intelligent, learning, microprocessor-controlled control system.
- Driving unit ATE
- Low maintenance DC geared motor with electronic path measurement and integral thermostatic protective switch, gear box with adjustable spring tension.
- Power supply NET
- Compact 230 V power supply with integral input filter and over-voltage protection.
- Control unit BDE
- As required with convenient, simple mechanical control unit and / or a programmable electronic BDE-D.
- Arm types
- Power transmission to the door leaf by use of standard arm pushing or sliding arm pulling/pushing.
- Locking VRR (optional)
- It is possible to connect an electrical door opener (24VDC) to the operator.
- Sensing units
- Aesthetic actuating and self-monitoring safety elements with adjustable sensitivity ensure optimum, smooth and reliable operation of the door system.
4.3 Functional description
In the standard "Automatic" mode of operation the door system opens by the response of an actuating device (e.g. radar unit) to persons or objects approaching. The door closes after the door hold-open time, provided no further opening pulse is received.
In the "Lock" mode of operation, the door is only opened by actuation of an optional key-operated contact (SSK). The door closes after the SSK door hold-open time, provided no further opening pulse is received.
An obstacle to the swing door leave during Closing leads to an immediate re-opening (reverse). The obstacle position is recorded in the door operator and this position is approached slowly when next closing. An obstacle to the swing door leaf when Opening results in an immediate stop.