Preparation For Rotary Actuators; Initialization Of Rotary Actuators - Siemens SIPART PS2 Installationsanleitung

To exit Configuration mode press the mode key
displayed. After you have released the mode key, the unit is in manual mode.
If you want to set further parameters, use the leaflet "Operation – a concise overview" or the Manual.
You can start reinitialization from manual or automatic mode at any time.
7.2

Preparation for rotary actuators

Note
Especially important: Switch the leverage ratio switch (7, leaflet "Operation – a concise overview")
in the positioner into position 90 (usual adjustment angle for rotary actuators).
1. Mount the positioner with the appropriate mounting kit (see Section 3.3).
2. Connect the actuator and positioner with the pneumatic cables and supply pneumatic power to the positioner
(see Fig. 16).
3. Connect a suitable current or voltage source (see Figs. 5 and 6 or Fig. 9 with PROFIBUS PA).
4. The positioner is now in "P manual" mode. On the upper line of the display, the current potentiometer voltage
(P) is displayed as a percentage, e.g. "P12.3", and on the lower line "NOINIT" is blinking:
5. Check that the mechanism is able to move freely over the entire setting range by moving the actuator into
each final position with the
Tip: You can move the actuator quickly by pressing the other direction key while you hold the first direction
key down.
6. The display of the potentiometer voltage in % (upper line of the display) must always remain in the range
P5.0 to P95.0. If that is not the case, adjust the friction clutch (8, Fig. 3) as follows: Move the actuator into
its final position by pressing the
between P90.0 and P95.0
7. Move through the entire range by adjusting the actuator with the
position. The potentiometer voltage should now remain in the range P5.0 to P95.0. If that is still not the case,
adjust the friction clutch (8, Fig. 3) as follows: Move the actuator into its final position again by pressing the
key. This time adjust the friction clutch until the upper line of the display shows a value between P5.0
and P10.0.
7.2.1

Initialization of rotary actuators

Once you can move the actuator through its setting range correctly, leave it in a central position and start automatic
initialization:
1. Press the mode key
Display
2. Set the parameter to "turn" with the
Display:
3. Switch to the second parameter by pressing the mode key
The second parameter is set to 90 automatically.
Display:
4. Switch to the following display with the mode key
Display:
5. Start initialization by pressing the
Display:
C79000–M7474–C156–01
for more than 5 s. After about 5 s, the software version is
and keys.
key. Adjust the friction clutch until the upper display line displays a value
for more than 5 s. This takes you into Configuration mode.
key:
key for more than 5 s.
and keys and move it into the final
briefly.
: