Johnson Controls EDA-8102 Installation Sheet page 7

Field Adjustments
Changing Rotation
to Less Than 90°
DCCW
The EDA-8102 is factory set for 90° of rotation and a control signal of 1
to 9 VDC. If the amount of rotation or the control signal must be changed
from factory settings, use the following procedures. Refer to Figure 7 for
the location of the potentiometer and terminal blocks in the procedures.
W1
DCW
1. Verify jumper W2 is set to the voltage (V) position.
2. Verify jumper W1 is set in the desired position:
DCW for clockwise driven rotation.
DCCW for counterclockwise driven rotation.
Note: Spring return direction is NOT reversible.
3. Turn the offset potentiometer (R39) to its mid-position.
4. Turn the span potentiometer (R35) fully counterclockwise.
5. Turn the CCW potentiometer (R36) fully clockwise.
6. Connect a jumper from terminal IN (TB1) to terminal +15 (TB2) as
shown in Figure 9. The actuator rotates until the end stop is reached.
7. Slowly adjust the stroke potentiometer (R37) until the actuator rotates
to the desired end stop position.
8. Remove the jumper between terminal IN and +15.
EDA-8102 Electric Damper Actuator
TB1
TB2
I
W2
V
Span
Stroke
(R35) CCW
(R37)
(R36)
Figure 9: Rotation Setting
7
AC COM IN +15 +1 AUXIN
TB2
TB1
Offset
(R39)