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Figure 31. Always Insert the Cable From the Left.
Figure 32. Input Cable Installed in Bottom Three Contacts.
Daisy Chain Cables
DA-985-134
12 ft
12 pk
DA-985-135
25 ft
12 pk
Daisy Chain Configuration
Figure 33.
Note:
You must select either the top 3 contacts or the bottom 3
contacts.
Do not configure more than 12 actuators in a daisy chain at
any time.
Start-Up / Commissioning
1. Check that the wires are connected correctly.
2. Check that offset and slope are set correctly, if used.
3. Check that the direction of rotation switch/cable matches the
rotation of the damper shaft.
4. Connect wires 1 (red) and 2 (black) to a Digital Multimeter (DMM)
with the dial set at AC V to verify that the operating voltage is within
range.
Check operation:
1. Connect wires 1 (red) and 2 (black) to the actuator.
2. Set the DMM dial to Vdc.
3. Connect wires 2 (black) and 8 (gray) to the DMM.
4. Apply a full-scale input signal (10 Vdc) to wire 8 (gray).
5. Allow the actuator shaft coupling to rotate from 0 to 90°.
6.
Disconnect wire 8 (gray) and the shaft coupling returns to the “0”
position.
Check Feedback:
1. Set the DMM dial to Vdc.
2. Attach wires 2 (black) and 9 (pink) to the DMM.
3. Apply a full-scale input signal to wire 8 (gray). The reading at the
DMM should increase.
4.
Remove the signal from wire 8 (gray). The reading at the DMM
should decrease and the actuator shaft coupling returns to the “0”
position.
Check the Auxiliary Switch A:
1. Set the DMM dial to ohms (resistance) or continuity check.
2. Connect
wires
S1
and
S3
to
the
DMM.
The DMM should indicate open circuit or no resistance.
3. Apply a full-scale input signal to wire 8 (gray). The DMM should
indicate contact closure as the actuator shaft coupling reaches the
setting of switch A.
4. Connect wires S1 and S2 to the DMM. The DMM should indicate
open circuit or no resistance.
5.
Stop the signal to wire 8 (gray). The DMM should indicate contact
closure as the actuator shaft coupling reaches the setting of switch
A.
Check the Auxiliary Switch B:
1. Set the DMM dial to ohms (resistance) or continuity check.
2. Connect wires S4 and S6 to the DMM. The DMM should indicate
open circuit or no resistance.
3. Apply a full-scale input signal to wire 8 (gray). The DMM should
indicate contact closure as the actuator shaft coupling reaches the
setting of switch B.
4. Connect wires S4 and S5 to the DMM. The DMM should indicate
open circuit or no resistance.
5. Stop the signal to wire 8 (gray). The DMM should indicate contact
closure as the actuator shaft coupling reaches the setting of switch
B.
Note:
You must
select either the top
3 contacts or the
bottom 3 contacts.
