Manual
Sectional Door Drive
4
DAS
–
Deutsche Antriebs und Steuerungstechnik GmbH
Otto-Hahn-Str. 3
•
48301 Nottuln
•
Germany
The words “Original instructions” shall appear on the language
version(s) verified by the
manufacturer or by the authorized representative. When a translation of the original instructions has
been provided by a person introducing the appliance on the market; the meaning of the sentence
“Translation of the original instructions”
must appear in the relevant instructions delivered with the
appliance. The instructions for maintenance/service to be done by specialized personnel, mandated
by the manufacturer or the authorized representative may be supplied in only one Community
language which the specialized personnel understand.
The instructions shall indicate the type and frequency of inspections and maintenance required for
safe operation including the preventive maintenance measures.
GENERAL DANGER WARNINGS AND PREVENTIVE SAFETY
According to the VDE 0113 booklet, the emergency stop devices must also be perfectly efficient
regardless of the gearmotor operation mode. Any release of the emergency stop device must not
cause an uncontrolled or undefined restarting.
OVERTURNING MOMENT: The fall of the balanced door wings by weights can be avoided if the
gearmotor is still able to support the wing weight even if the spring breaks.
This provision is based on the regulations of the National Insurance Institute for Industrial Accidents
BGR 232. The static overturning moment is the maximum load allowed for the mechanism at the
time the spring breaks. The Mstat static overturning moment is calculated with the following
formula:
Mstat [Nm] = Wing weight [N] × cable winder drum radius [m] Considering that two balancing springs
can yield at the same time, the Commission of experts about building devices recommends sizing the
gearmotor so that it is able to support
- the total weight of the wing when there are one or two springs
- 2/3 of the weight of the wing when there are three springs
- 1/2 of the weight of the wing when there are four springs.
Pursuant to the directives mentioned above, the considerably greater gearmotor breaking load is not
to be contemplated in defining the gearmotor sizing. In the case of cable winder drums of the scalar
type, the greater winding diameter is to be considered.
Consider the allowed forces of the cables!
ASSEMBLY INSTRUCTIONS / FIXING THE MECHANISM
Clutch gearmotor
The gearmotor is to be pushed not too forcefully on the relevant part of the previously greased
flexible shaft.
The key (tab) is to be blocked on the through seat of the shaft with 1 screw (or, as an alternative,
with a fixing ring) to prevent accidental movement (Fig. 1).
There are fixing holes (on the bracket) o secure the support (bracket) to the reduction unit flange.
Precise fixing of the support (bracket) is specified in the instructions of the main door (Fig. 2).
Fixing must be performed using 4 M 8x12 screws and the washers supplied. Tightening torque must
be 20 Nm. The support is to be secured on the building side with 2 8/M10 screws.
