3.5 Locking Device
In general, devices of the following type are referred to as
locking devices:
electric strike plates (e-openers), motor locks, multi-point
locking devices with feedback contact, magnetic clamps
Motor locks without feedback contact can be connected to
the drive directly provided that the delayed opening for the
locking mechanism is less than 4 seconds. To ensure that
the drive and locking device work safely when combined, the
locking device must comply with the following specifications:
Minimum requirements
Operating voltage with power supply via drive:
24 V DC +/- 5%
Operating voltage with external power supply:
max. 48 V DC/AC
Load of locking device’s relay contact:
max. 1 A
Duty factor of electric strike:
min. 30%
Duty factor of motor lock:
100%
3.6 Low-Energy Product
The ED 100/250 can be adjusted to meet the requirements
of a low-energy application (low-energy drive) pursuant to
EN 16005 or DIN 18650, ANSI 156.19 and BS 7036-4.
During commissioning, the drive’s parameters must be
adjusted in line with the specifications set down in the valid
standard.
Due to system tolerances, the actual forces on the door leaf
must be measured following the automatic learning cycle
and changed, if necessary, to ensure compliance with local
standards and regulations.
The required system safety is achieved by means of the
following properties:
• Reduced dynamic door leaf / contact forces
• Low driving speeds
• Reduced static door leaf / contact forces
• Force limitation
While the use of additional safety sensors to safeguard the
swing movement is not explicitly stipulated, it can take
place as an option if necessary due to the risk assessment
to be performed individually. Safeguarding of the secondary
closing edge must be considered separately.
3.7 Power Assist Function
The Power Assist Function can be activated in door closer
mode (hd = 1 parameter). Servo support then takes place
during manual opening.
The servo support is automatically adapted to the set door
closer size. The intensity of servo support can be adjusted
to meet the requirements of DIN 18040, DIN Spec 1104,
CEN/TR 15894, BS 8300/2100 and document “M”, even
up to EN 6.
The smallest opening torque which can be set is
23 Nm/5 lbf., provided that the hold-open system is not
triggered or the supply voltage has failed.
With the Power Assist Function the requirements of EN
1154 can be met, and at the same time, in standard
operation, barrier-free access can be provided.
This cannot be combined with the Push & Go Function or
wind load control, because these counteract easy manual
opening.
3.8 Door Closer Mode & Automatic Mode
There are two operation modes to choose from: door closer
mode and automatic mode. In door closer mode (hd = 1
parameter), the drive is optimized for manual access. With
the Power Assist Function, which is available as an option in
this operation mode, this operation mode should be used if
doors are mainly accessed manually and if door closer-like
behavior is desired. Automatic mode (parameter hd = 0)
is designed for predominantly automatic access following
pulse generation by a motion detector or pushbutton. If the
door encounters an obstacle during the closing, the drive
reverses. When automatic mode is activated, wind load
control is also available. The doors can still be accessed
manually in spite of this. We advise using the Push & Go
Function for this.
3.9 Wind Load Control
The ED 100 and ED 250 drives are particularly suitable for
use on exterior doors exposed to changing wind loads or on
interior doors that separate rooms and where there could be
differences in pressure. In automatic mode, the wind load
control monitors the actual driving speed and intervenes to
balance the driving speed if it deviates from the set value.
In conjunction with the Full-Energy Upgrade Card, the drive
can make up to 150 N available on the main closing edge
which can then be used to compensate for environmental
influences.
During the last 5°, the closing process can also be supported
by the electronic latching action.
ED 100, ED 250
—
5DORMA
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