Controlli MDL46 Manual

Damper Actuators
Stroking time (s) Torque
Part.
Number
90 (1) 160
MDL22 15 27
MDL24 45 80
MDL26 60 107
MDL62 15 27
MDL64 45 80
MDL66 60 107
MDL42 15 27
MDL44 45 80
MDL46 60 107
MDL32 15 27
MDL34 45 80
MDL36 60 107
MDL52 15 27
MDL54 45 80
MDL56 60 107
(1) Factory setting.
(2) The values in brackets indicate the starting torque.
(3) Models that may be set for voltage or current proportional
control, using the options described further.
(4) Fixed-range proportional models. This version is physically
obtained by including the MDLS5 module in the MDL3.
series actuator.
APPLICATIONS AND USE
MDL actuators are used in civil and industrial systems for driv-
ing dampers and other devices, which require the control of an
angular position within a max. angle of 160° (e.g. for adjusting
the fl ame in liquid or gas burners).
MDL actuators are equipped with a double shaft output; their
size is such that they are interchangeable with other qualifi ed
manufacturers' actuators. Using the appropriate bracket, they
are also interchangeable with Controlli SL old-model actuators.
MDL actuators can be installed in any position.
Each actuator is available in three basic model types:
− Floating (3p)
− Proportional potentiometric (pot.)
− Proportional voltage or current, with fi xed ranges (prop.)
By means of easily mountable additional modules, the models
with proportional potentiometric control may be voltage or current
controlled in the following versions:
− Selectable fi xed ranges; see MDLS5 option
− Variable range start and slope, see MDLV5 option
2° Emissione
ISO 9001
Power
Control
(2)
Nm supply
6 (8) 230 V~ 3 p
20 (27) 230 V~ 3 p
30 (40) 230 V~ 3 p
6 (8) 110 V~ 3 p
20 (27) 110 V~ 3 p
30 (40) 110 V~ 3 p
6 (8) 24 V~ 3 p
20 (27) 24 V~ 3 p
30 (40) 24 V~ 3 p
6 (8) 24 V~ pot. (3)
20 (27) 24 V~ pot. (3)
30 (40) 24 V~ pot. (3)
(4)
6 (8) 24 V~ prop.
(4)
20 (27) 24 V~ prop.
30 (40) 24 V~ prop. (4)
05/12
CONTROLLI S.p.A.
16010 SANT'OLCESE Genova - Italy
Tel.: +39 01073061
E-mail: info@controlli.eu
OPERATION
All models are equipped with a permanent magnet synchronous
motor, which makes stroke time independent from load, and
increases reliability, avoiding the use of mechanical brake. The
stroke angle of the actuator can be adjusted easily by means of
graduated cam disks fi tted internally. On the outside is located
a disk that indicates the angular position of the shaft.
All 24 V~ models have an electrical device for the manual control
in both directions of the actuator in case of absence of control
signal or of failure of the electronic card.
The electric manual control can also be remote, according to the
wiring diagram illustrated in fi g. 5.
It is available an internal mechanism for unlocking the main shaft;
this mechanism permits the shaft to rotate freely in both direc-
tions, simplifying assembly operations and cam calibration.
In the models with fl oating control is available, as an optional
accessory, an auxiliary potentiometer (its card is preset for mount-
ing 1 additional potentiometer, on request). In the models with
proportional control it is also available an output signal depending
on the angular position of the shaft, and a device for reversing
the direction of rotation.
The rotation directions are defi ned as "clockwise" or "coun-
terclockwise", in respect with the position indicator side.
MANUFACTURING CHARACTERISTICS
The actuator does not require any maintenance. It consists of
an aluminium die-cast case and upper cover in thermoplastic
material.
Holes for installation are provided both on the base and on the
front.
The reduction gear has output shaft supported by self-lubricating
bushings. The electronic card is fi tted on top, it can be reached
by removing the cover, also providing an easy access to the
terminals for wiring connections.
1
Fax: +39 0107306870/871
Web: www.controlli.eu
MDL
DBL021e