Distech Controls DA-016N024PX Installation Instructions Manual page 3

English
READ THIS INSTRUCTION SHEET AND THE SAFETY
WARNINGS CAREFULLY BEFORE INSTALLING AND
SAVE IT FOR FUTURE USE
General Features
The actuators are intended for the operation of air dampers in
HVAC systems. The universal adapter allows them to be
mounted directly on the damper spindle where they are
secured with the locking device supplied.
Figure 1: Dimensions in mm
(a). Cover screw
Mode of operation
Figure 2: Actuator open
(a). Direction of rotation
(b). Self adapting:
b1: Dectivated
ON: Activated
(c). Manual button
(d). Adapter for:
Round spindles: Ø 10...20 mm
Square spindles:
(e). 1 - Angle of rotation limiting
2 - Releasing the adapter
(f). Adjusting control signals
The actuators are controlled by a 0...10 VDC or 0...20 mA
signal. The motor stops running when the damper end-stop or
actuator end-stop is reached. For manual operation of the
damper the gearing is disengaged by means of the self-
resetting button (See figure 2 c.).
WARNING: When calculating the torque required
to operate dampers, it is essential to take info
account all the data supplied by the damper
manufacturer.
Installation and adjustment
Figure 3: Mounting Instructions
Installation
Attach the actuator to the damper spindle by means of the
adapter and secure the locking device with the screws
provided.
Angle of rotation limiting
An angle-of-rotation/working range (figure 2 e1.) of less than
90° can be limited mechanically by repositioning the adapter
in 5° steps as required.
The adapter is released by simply pressing the adapter clips
on the lower side of the actuator (figure 2 e2.).
Selecting the direction of rotation
• In order to reverse the direction of rotation (CW/CCW),
loosen screw (See figure 1 a.) and remove the cover.
• The direction of rotation can be changed by switching
microswitch a (See figure 2 a.).
• Factory setting: Clockwise (CW) rotation.
Control Signal Adapting
By switching microswitch b1 to ON position, the control signal
Y1 or Y2 will be adapted to the chosen angle of rotation (See
figure 2 b.).
Setting Span and OFFSET
The potentiometers O and S help to match control signals Y1
and Y2 to any make of controller (see figure 5).
IS_DA-016N024PX / DA-024N024PX_14-88360-03303_Rev. -_07 2017
10...16 mm
Wiring
WARNING:
• The electrical connections for the actuators must
be executed in accordance with the relevant legal
requirements.
• In order to avoid any personal injury or damage
to the equipment or other property, always
isolate the power supply before commencing
any work on the electrical wiring.
• In order to avoid danger to property, it is important
for the equipment to be used solely for which it is
intended.
WARNING: The integrated circuits in the
actuator are sensitive to static electricity. Take
suitable precautions.
Wiring Diagrams
Figure 4: Proportional Control
Figure 5: Setting Span and OFFSET
(a). Start point O
(b). Working Range S
Figure 6: Parallel connection
Electrical connections via safety isolating
transformer
• In order to make the electrical connections, loosen screw
(fig. 1 a.) and remove the cover.
• Actuator wiring diagram: according to terminal connection
(Fig. 4).
• Parallel connection: according to terminal connection (fig. 6).
• Feedback potentiometer: not possible.
• The electrical installation work should be carried out by
a qualified electrician.
• Wrong connections can damage the equipment. Check the
connections before energizing the power supply.
• Local accident prevention regulations should always be
adhered to when installing the actuators.
• The actuator moves about slightly while it is working so it is
important to use flexible leads for the electrical connections.
This document is subject to change without notice
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