Is the Siemens positioner broken? What’s broken?
Thread Content
The letter “no” is displayed on both the auto-tuning and manual tuning screens. During manual tuning, values from 0 to 100 work fine, but the letter “no” still appears after the tuning is complete. With auto-tuning, the process stops after the second step; the screen shows a character other than “finish”. A signal was sent from the control panel, but the valve did not move at all; it has been confirmed that the signal reached the actuator and there is no issue with the air supply. I really can’t figure it out. Is there anyone who could help analyze the reason?
If nothing else works, restore to factory settings first
If you can’t even get past the second step, then there’s an issue with the settings. What is that letter code? Follow the instructions. I guess I need to adjust one of the plastic gears inside; I need to turn it a bit. I can’t remember which parameter needs to be adjusted in the second step. It’s basically just things like action and reaction forces, the angle of the feedback rod, its length, response time, and so on. Take a look at the manual for the Baidu Siemens locator.
I have compared the parameters with valves of the same type; all parameters such as forward/reverse action, feedback rod, angle, etc., are identical. Yet it still doesn’t work – in particular, the letter ‘NO’ is always present, while the actuators that work properly do not have this letter
The plastic gear was adjusted during manual tuning
Then reset to factory settings and try setting it up again. Then self-check again! If nothing else works, then it’s necessary to take it apart and play with it slowly. Change the board, change the IP – you can always find the problem; I’ll know next time it happens.
This manual does provide an introduction, right?
Take a look and see if this material can solve it
The manual full-off value should be between 5 and 9, while the manual full-on value should not exceed 95. It is essential to set this value correctly; otherwise, self-tuning will not succeed