Siemens SIPART PS2 Service Manual

Appendix A
A.3 NOINI (P-Manual Mode) Troubleshooting
PS2 Troubleshooting Guide
60 Service Manual, 03/2017, A5E36661550-AA
● The large number should be repeatable at each end-stop.
– To check for loose linkage, move valve to fully closed position.
○ Take note of the numerical value on display.
● Move valve to fully open position.
– Take note of the numerical value on display.
● Move valve back to fully closed position. Is the numerical value within 0.5 of previous
value?
– If no; check for loose mechanical feedback linkage, see Loose or Worn Linkage
(Page 29) section.
– If yes; move valve to fully open position. Is the numerical value the same?
– If no; check for loose mechanical feedback linkage, see Loose or Worn Linkage
(Page 29) section.
– If yes; linkage is most likely secure. Run the last few steps again just to be sure.
Check For An Air Leak:
● Using the above push button procedure to move the valve, move valve to the mid-travel
position.
Note
Do not use the large number on the display to determine mid
-travel position, use the
mechanical indic
ator on the actuator.
● Once at the mid-travel position, release push-buttons.
– The valve should stay at that position, if not:
○ Check for air leaks. If equipped, use pressure gauges to determine which port is
losing air pressure.
○ Check pneumatic fittings, air lines and actuator.
○ Use some form of leak detection or soap and water around the pneumatic
connections, taking care not to wet the internals of the unit.
○ Identify leak and use appropriate method(s) for leak correction.
○ Repeat leak check to confirm corrective action was successful.
○ If valve assembly is equipped with volume boosters, be sure they are properly tuned
before initialization. See Booster(s) Not Properly Tuned (Page 18)
Determine Proper Slide Bar Setting:
● Using the above push button procedure to move valve, move valve to the mid-travel
position.

Siemens SIPART PS2 Specifications

General

Supply Pressure	1.4 to 7 bar (20 to 100 psi)
Enclosure Rating	IP66/NEMA 4X
Communication Protocols	HART, PROFIBUS PA, FOUNDATION Fieldbus
Output Pressure	0 to 100% of supply pressure
Hazardous Area Certification	ATEX, IECEx, FM, CSA
Type	Electropneumatic
Input Signal	4-20 mA
Rotation Angle	30° to 90°
Operating Temperature	-40°C to +80°C
Mounting	Linear and rotary actuators
Air Consumption	Typically less than 0.1 kg/h