Technical Instructions
OpenAir GEB Non-Spring Return, 24 Vac,132 lb-in, Rotary Electronic Damper Actuators
Document Number 155-318P25
May 19, 2014
Page 14
Siemens Industry, Inc.
Non-spring Return
Floating
24 Vac
1. Check Operation:
a. Apply a control signal (24 Vac) to wires 1 (red) and 6 (violet).
b. Allow the actuator shaft coupling to rotate from 0 to 90°.
c.
Stop applying a control signal to wires 1 (red) and 6 (violet).
d. Apply a control signal (24 Vac) to wires 1 (red) and 7 (orange).
e.
Allow the actuator shaft coupling to rotate from 90° to 0°.
2. Check Feedback:
a. Set the DMM dial to ohms.
b. Connect wires P1 and P2 to the DMM.
The DMM should indicate a resistive value.
c.
Apply a control signal (24 Vac) to wires 1 (red) and 6 (violet).
The reading of the DMM should increase.
d. Stop applying a control signal to wires 1 (red) and 6 (violet).
e. Connect wires P2 and P3 to the DMM. The DMM should indicate a resistive value.
f.
Apply a control signal (24 Vac) to wires 1 (red) and 7 (orange).
The reading of the DMM should increase.
3. Check the Auxiliary Switch A:
a. Set the DMM dial to ohms (resistance) or continuity check.
b. Connect wires S1 and S3 to the DMM.
The DMM should indicate an open circuit or no resistance.
c.
Apply a control signal (24 Vac) to wires 1 (red) and 6 (violet).
The DMM should indicate contact closure as the actuator shaft coupling reaches the setting of
switch A.
d. Stop applying a control signal to wires 1 (red) and 6 (violet).
e. Connect wires S1 and S2 to the DMM.
The DMM should indicate an open circuit or no resistance.
f.
Apply a control signal (24 Vac) to wires 1 (red) and 7 (orange).
The DMM should indicate contact closure as the actuator shaft coupling reaches the setting of
switch A.
4. Check the Auxiliary Switch B:
a. Set the DMM dial to ohms (resistance) or continuity check.
b. Connect wires S4 and S6 to the DMM.
The DMM should indicate an open circuit or no resistance.
c.
Apply a control signal to wires 1 (red) and 6 (violet).
The DMM should indicate contact closure as the actuator shaft coupling reaches the setting of
switch B.
d. Stop applying a control signal to wires 1 (red) and 6 (violet).
e. Connect wires S4 and S5 to the DMM.
The DMM should indicate an open circuit or no resistance.
f.
Apply a control signal (24 Vac) to wires 1 (red) and 7 (orange).
DMM should indicate contact closure as the actuator shaft coupling reaches setting for
switch B.