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Start-Up/Commissioning
DA-020S024QXxxx
Spring Return, Modulating Control, 24 Vac/dc
1. Check Operation:
a)
Connect wires 1 (red) and 2 (black) to the 24 Vac/dc
power supply.
NOTE:
With no input signal present, the DA-
020S024QXXXP actuator with input signal inversion
switch set to Inverse Acting, will start driving towards
90°.
b)
Use a Digital Multimeter (DDM) and set the dial to Vdc
for the actuator input signal.
c)
Connect wires 2 (black) and 8 (gray) to the DMM.
d)
Apply to input signal wire 8 (gray):
Y = 10 Vdc (DA-020S024QXXXP with input signal
inversion switch set to Direct Acting).
Y = 2 Vdc (DA-020S024QXXXP with input signal
inversion switch set to Inverse Acting).
Allow the actuator shaft coupling to rotate from 0° to 90°.
e)
Apply to input signal wire 8 (gray):
Y = 2 Vdc (DA-020S024QXXXP with input signal
inversion switch set to Direct Acting).
Y = 10 Vdc (DA-020S024QXXXP with input signal
inversion switch set to Inverse Acting).
The shaft coupling returns to the "0" position.
DA-020S024DXxxx
Spring Return, 2-Position, 24 Vac/dc
2. Check Operation:
a)
Connect wires 1 (red) and 2 (black) to 24 Vac/dc power
supply. Allow the actuator shaft coupling to rotate from
0° to 90°.
b)
Disconnect wire 1 (red) and the actuator shaft coupling
returns to the "0" position.
3. Check Spring Return:
a)
Connect wire 1 (red). Allow the actuator shaft coupling
to rotate halfway.
b)
Disconnect wire 1 (red). The spring returns the actuator
shaft coupling to the fail-safe "0" position.
DA-020S024FXxxx
Spring Return, Floating, 24 Vac/dc
1. Check Operation:
a)
Connect wires 1 (red) and 2 (black) to a 24 Vac/dc
power supply.
b)
Apply a control signal (24 Vac/dc) to wire 6 (violet).
Allow the actuator shaft coupling to rotate from 0 to 90°.
c)
Stop the control signal to wire 6 (violet).
d)
Apply a control signal (24 Vac/dc) to wire 7 (orange).
Allow the actuator shaft coupling to rotate from 90° to 0°.
2. Check Spring Return:
a)
Apply a control signal (24 Vac/dc) to wire 6 (violet).
Allow the actuator shaft coupling to rotate half way.
b)
Disconnect wire 1 (red). The spring returns the actuator
shaft coupling to the fail-safe "0" position.
c)
Connect wire 1 (red). The actuator shaft coupling begins
to move.
DA-020S120DXxxx
Two-Position, 120 Vac
1. Check Operation:
a)
Switch on 120 Vac power.
b)
Allow the actuator shaft coupling to rotate from 0 to 90°.
2. Switch off power. The actuator shaft coupling will return to the "0"
position.
3. Check Spring Return:
a)
Switch on 120 Vac power.
b)
Allow the actuator shaft coupling to rotate halfway.
c)
Switch off 120 Vac power. The spring returns the
actuator shaft coupling to the fail "0" position.
Troubleshooting
To avoid injury or loss of life, pay attention to any
hazardous voltage (for example, 120 Vac) when
performing checks.
-
Check that the wires are connected correctly.
-
Check that DIP switch is set correctly, if used.
-
Use a Digital Multimeter (DMM) to verify that the operating
voltage is within range.
-
If the actuator is not working, check the damper for blockage.
-
If blocked, remove the obstacle and cycle the actuator power off
and on. The actuator should resume normal operating mode.
