Positioners With Stainless Steel Enclosure 6Dr5; Enclosure 6Dr5..6, And Narrow Aluminum Enclosure 6Dr5..1; Replacing The Basic Electronics With The "Fail In Place" Function - Siemens SIPART PS2 Operating Instructions Manual

Service and maintenance

11.3 Replacing the basic electronics with the "Fail in Place" function

11.2.2 Positioners with stainless steel enclosure 6DR5..2, flameproof stainless steel

enclosure 6DR5..6, and narrow aluminum enclosure 6DR5..1

Removal, cleaning and installation of the screens
1. Disconnect the pneumatic auxiliary power supply.
2. Remove the pipelines.
3. Remove the metal screen from the bores carefully.
4. Clean the metal screens, e.g. using compressed air.
5. Insert the screens.
6. Connect the pipelines again.
7. Feed the pneumatic auxiliary power supply.
11.3 Replacing the basic electronics with the "Fail in Place" function
Requirement
You have a positioner with the "Fail in place" function, order suffix -Z F01.
Replacing the basic electronics with the "Fail in Place" function
When replacing the basic electronics for positioning controllers with the function "Fail in
Place", order suffix -Z F01, the parameters for the pneumatic type have to be set. The
procedure is described here.
Note
Possible movement of the actuator
While replacing the basic electronics, the actuator can unintentionally vent itself.
• Observe the procedure described below.
1. Switch off the supply air PZ.
2. Remove the enclosure cover of the positioner.
3. Replace the basic electronics as described in section "General information on installing
option modules (Page 54)".
4. Set the "'51.PNEUM' Fail in place (Page 174)" parameter from "Std" to "FIP".
5. Install the enclosure cover.
6. Switch on the supply air PZ again.
7. Initialize the positioner as described in section "Commissioning (Page 113)"
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SIPART PS2 with and without HART
Operating Instructions, 02/2016, A5E00074631-AB