MOV Jinda JDIDL-A Calibration

In this post, I will share how to calibrate the Motor Operated Valve (MOV) Jinda type JDIDL-A.

Generally this type of MOV is used in the damper for the FAN. It looks like the following

Calibration Method:

1. Position the MOV to 'LOCAL' mode by pressing and holding the 'SETTING' button for 10 seconds. The '01' indicator will appear, press 'SETTING' until the '-01' indicator appears indicating the MOV is in 'LOCAL' mode.

2. Close the damper manually using the handwheel (pull the handwheel out for manual clutch), if the damper is fully closed, turn the handwheel back 1/2 turn.

3. Set the limit switch CLOSE.

4. Set the feedback CLOSE, press and hold the 'SETTING' button for 10 seconds, the '001' indicator will appear, press 'SETTING' until the '101' indicator appears, press the '+' button the indicator will flash 3 times and the feedback is set to 4 mA.

5. Mark the CLOSE position on the gearbox using a permanent marker.

6. Open the damper manually using the handwheel (pull the handwheel out for manual clutch), if the damper is fully open, turn the handwheel back 1/2 turn.

7. Set the limit switch OPEN.

8. Set the feedback OPEN, press 'SETTING' until the '102' indicator appears, press the '+' button the indicator will flash 3x and the feedback is set to 20 mA.

9. Mark the OPEN position on the gearbox using a permanent marker.

10. Do stroking LOCAL, make sure the Open and Close positions are in accordance with the markers.

11. Position the MOV to REMOTE mode, Press the 'SETTING' button until the '01' indicator appears.

12. Do strooking REMOTE, give the command 0%, 25%, 50%, 75%, 100%, then 100%, 75%, 50%, 25%, 0%, observe the damper position and record the feedback.

For the setting button like this,