Abloy DA461, Installation And Commissioning Manual, Page: 7 / 32

7
4 OPERATION
5 MAIN SWITCH AND MODE SWITCH
The
ABLOY ® DA461
electromechanical swing door operator is especially suited to external and fi re resisting
doors.
The door is opened by motor force, and closed with the on board door closer. The motor and door closer are
connected via clutch mechanism, which is engaged during the opening cycle, and released for the closing cycle.
If the opening cycle of the door operator is interrupted, the clutch mechanism will disengage, the
ABLOY ®
DA461
will try to open the door four times, stopping for one second before each attempt. After fourth attempt
the clutch will release, and the door will close via the on board door closer.
The Abloy door operator is controlled with normally open devices, triggering closed. In the event of power
failure the door operator reverts to manual opening, closing via the on board door closer making the product
an ideal speci fi cation for Fire Resisting door sets. When the
ABLOY ® DA461
is used on Fire Resisting door sets
the unit must be interfaced with the Fire Detection system, ensuring that the door closes, in line with current
European and local standards. [Local standards may vary due to local requirements, and the Installer must
ensure that these have been adhered to]. The door operator will allow for manual escape, [and re closing] even
after activation of the Fire Detection system.
The
ABLOY ® DA461
has a ”Push&Go” function. When Push&Go is in operation and door is pushed or pulled
manually, operator opens the door to adjusted opening angle and closes the door after a 5 second of hold open
time.
AUTO
MAN
OPEN
The door opens via an impulse and closes after the
adjusted hold open time.
Manual use.
The door opens and stays open.
Main switch
Mode
switch
When the power is switched on,
the mains switch lights up.
I = on
0 = off
Note! There is 3 seconds constant delay when mode
switch is changed position OPEN to AUTO or MANUAL.