Appendix A
A.2 Initialization Procedure
PS2 Troubleshooting Guide
56 Service Manual, 03/2017, A5E36661550-AA
15.At this point the positioner is calibrated for the valve assembly. The next task is to go to
"AUTOMATIC OPERATION" or any of the remaining parameters.
16.To return to automatic mode, press and
the button for 5 seconds.
The display will automatically change to show it is in Manual Mode. The valve can be
manually operated from here using the
or , if required.
17.Push the
button once. The display will show:
Note
For Profibus and Foundation Fieldbus, please see the following Digital Communicatio
n
A 4-20 mA positioner should now respond to the control signal. A digital unit such as
Profibus or Foundation Fieldbus requires other steps for communication.
18. Lock the Transmission Ratio Selector according to application; 33 or 90 degrees.
19.Lock the Friction Clutch; Move the slots left to lock (see ⑦ on image above)
Manual mode can be used for bench testing various positions without the need for a digital
network.
● A Profibus unit will also need to have the address set. The address can be changed in the
configuration menu. Factory default is 126.
– This parameter is Station Number,
. The parameter number is different
depending on firmware revision. Check Leaflet provided inside the housing for
parameter number.
● Foundation Fieldbus requires a special process for configuring the function blocks in
order to control the valve. For help with the communication step, contact Siemens
Technical Support.
How to reverse the action:
If it is found that the valve action is backwards for the application, there are two ways to
address this but one requires re-initialization.
One (Requires re-calibration procedure):
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