Operating instructions

Commissioning
9.3 Commissioning part-turn actuators
SIPART PS2 with and without HART communications
Operating Instructions, 09/2007, A5E00074631-07
121
Setting the actuator
1. The positioner is in the "P manual mode". The current potentiometer voltage P in percent
is shown on the upper line in the digital display. "NOINI" blinks in the lower line of the
display. Examples of corresponding displays are given below:
2. Check whether the mechanical unit can be moved freely in the entire actuating range. For
this purpose, move the actuator to the top and the bottom end positions alternately using
the
increment or the decrement buttons.
Note
Press the
increment or decrement buttons additionally to reach the end position
faster.
3. After checking, move the actuator to a central position. This accelerates the initialization
process.
See also
External position displacement sensor (Page 48)
Pneumatic connection (Page 89)
Basic device (Page 70)
Switching the transmission ratio (Page 47)
9.3.2 Automatic initialization of part-turn actuators
Condition
The following conditions must be fulfilled before activating the automatic initialization:
1. The actuating range of the actuator can be passed through completely.
2. The actuator shaft is at a central position.
Initializing the positioner automatically
1. Switch to the "Configuration" mode. To do this, press the operating mode button for at
least 5 seconds. The following is shown on the digital display: