SIPART PS2 (6DR5...)
30 A5E03436620-06, 04/2015
5.5 Purge air switching
When the enclosure is open, the purge air switch above the pneumatic terminal strip on the pneumatic block can be
accessed.
● In the IN position, the enclosure is flushed from inside with a small volume of clean and dry instrument air.
● In the OUT position, the purge air is directly directed towards outside.
Pneumatic connections Y1, PZ and Y2
Figure 5-1 Purge air switch on the pneumatic block; view of the positioner on the pneumatic connection side when the
cover is open
The factory setting is the "IN" position.
5.6 Commissioning linear actuators
5.6.1 Preparing linear actuators for commissioning
Requirements
You have already installed the positioner using the suitable mounting kit.
Setting the transmission ratio selector
Note
Commissioning
The setting of the transmission ratio selector is extremely important to
commission the positioner.
Position of the transmission ratio selector
Connecting the positioner
1. Connect a suitable current or voltage source. The positioner is now in the "P manual mode". The current potentiometer
voltage (P) in percent is shown in the upper line of the display, e.g.: "P37.5", and "NOINI" blinks in the lower line:
2. Connect the actuator and the positioner to the pneumatic lines.
3. Supply the pneumatic auxiliary power to the positioner.
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