Installation Instructions

Document No. 129-386
Installation Instructions
October 2, 2009
Siemens Industry, Inc. Page 3 of 5
Figure 8. Attaching the Mounting Bracket.
Manual Override
To move the damper blades and lock the position
with no power present, do the following:
1. Slide the red manual override knob toward the
back of the actuator.
2. Make adjustments to the damper position.
3. Slide the red manual override knob toward the
front of the actuator.
Once power is restored, the actuator returns to
automated control.
Figure 9. Manual Override.
Mechanical Range Adjustment
Figure 10. Moving the Mechanical Range Stop.
1. Loosen the stop set screw.
2. Move it along the track to the desired position, and
fasten it in place.
Mechanical range limitation and
self–adapt feature
1. To use the entire 0 to 10V input signal to control
the adjusted range, raise the tab located on the
lower left-hand side of the actuator and locate the
DIP switches. See Figure 2.
2. Set the self-adapt DIP switch to
(ON).
3. Close the tab over the DIP switches.
For example, if you set the locking screw at 70° and
turn the self-adapt switch ON, a 5V input signal will
drive the damper to 35° (50% of its adjusted range).
Figure 11. Self-adapt Switch in the On Position.
Factory setting 0 (OFF)
CAUTION:
When turning the self-adaptive feature
on, or after software reset with the
feature on, the actuator will enter a five-
minute calibration cycle as the actuator
adjusts to the rotation limits of the
system. The software reset happens
after power on, or may be caused by
electrostatic discharge (ESD) at levels of
2 kV and above.
Wiring
All wiring must conform to NEC and local codes and
regulations.
Use earth ground isolating step-down Class 2
transformers. Do not use autotransformers.
Determine the supply transformer rating by summing
the total VA of all actuators used. It is recommended
that one transformer power no more than 10 actuators.
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