Startup And Checkout - Belimo AF24 US Manual

Startup and Checkout

Instructions For AF24-SR US and AF24-MFT US + P-100...
AF24-SR US and AF24-MFT US + P-100... Electrical Check-out Procedure
STEP Procedure
1. Control signal is applied to actuator.
2. Check power wiring.
Correct any problems.
See Note 1.
3. Turn reversing switch to the correct
position. Make sure the switch is
turned all the way left or right.
4. Make sure the control signal positive
(+) is connected to Wire No. 3 and
control signal negative (-) is
connected to wire No. 1. Most
control problems are caused by
reversing these two wires. Verify
that the reversing switch is all the
way CCW or CW.
5. Check input signal with a digital volt
meter (DVM). Make sure the input
is within the range of the actuator.
For AF24-SR US this is 2 to 10 VDC
or 4 to 20 mA.
NOTE: The input signal must be
above the 2 VDC or 4 mA to have
the actuator move.
7. Check damper torque requirement.
8. Actuator works properly. Test
controller by following controller
manufacturer's instructions.
NOTE 1 Check that the transformer(s) are sized properly.
transformer and all No. 2 wires to the other leg of the transformer.
NOTE 2 If failure occurs within 5 years from original installation date, notify Belimo and give details of the application.
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42
Expected Response
Actuator will move to its "Control
Signal" position.
Power supply rating should be the
total power requirement of the
actuator(s). Minimum voltage of
19.2 VAC or 21.6 VDC.
Actuator will move to its "Control
Signal" position.
Drives to "Control Signal" position.
Input voltage or current should be
±1% of what controller's adjustment
or programming
indicate.
Torque requirement is actuator's
minimum torque.
866-805-7089 CANADA
Gives Expected Response
Go To Step...
Actuator operates properly Step 7.
Power wiring corrected, actuator
begins to drive Step 1.
Actuator operates properly Step 7.
Actuator operates properly Step 7.
Controller output (actuator input)
is correct. Input Polarity Correct
Step 6.
Defective Actuator.
Replace Actuator - See Note 2.
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Does Not Give
Expected Response
Go To Step...
No response at all Step 2.
Operation is reversed Step 3.
Does not drive toward "Control
Signal Position" Step 4.
Power wiring corrected, actuator still
does not drive Step 4.
Does not drive toward "Control
Signal Position" Step 4.
Step 5.
Reprogram, adjust repair or replace
controller as needed Step 1.
Recalculate actuator requirement and
correct installation.