Behaviour For Pvst: Define; Partial Stroke For Pvst: Set; Pvst Monitoring Time: Set; Pvst Operating Time: Set - AUMA AC 01.2 Manual

Actuator controls
AC 01.2/ACExC 01.2
9.9.3.

Behaviour for PVST: define

OPEN
CLOSE
9.9.4.

Partial stroke for PVST: set

9.9.5.

PVST monitoring time: set

9.9.6.

PVST operating time: set

9.9.7.

PVST reverse time: set

The test can be performed in direction OPEN or direction CLOSE.
Customer settings M0041
PVST M0852
PVST behaviour M0853
Default value: OPEN
Setting values:
Testing by operation in direction OPEN.
Testing by operation in direction CLOSE.
During stroke controlled PVST execution (parameter PVST operation mode M0889
= Stroke), this parameter determines the partial stroke for a PVST.
Usually, the valve stroke amounts to 10 to 15 %. The amount of the partial stroke
depends on process requirements and the required diagnostic coverage rate.
Customer settings M0041
PVST M0852
PVST stroke M0854
Default value: 10.0 %
Setting range: 0.0 ... 100.0 %
The actuator remains in the current position, if the test could not be completed within
the pre-set time.
Customer settings M0041
PVST M0852
PVST monitoring M0855
Default value: 01:00.0 min:s (1 minute)
Setting range: 00:01.0 ... 50:00.0 min:s (minutes:seconds)
During operating time controlled PVST execution (parameter PVST operation mode
M0889 = End position test), this parameter determines the permissible PVST
operating time.
Customer settings M0041
PVST M0852
PVST operating time M0890
Default value: 00:02,0 min:s (2 Sekunden)
Setting range: 00:00,1 ... 15:00.0 min:s (minutes:seconds)
Waiting time during PVST prior to returning to initial position.
Customer settings M0041
PVST M0852
PVST reversing time M0891
Default value: 00:02.0 min:s (2 seconds)
Setting range: 00:00.1 ... 15:00.0 min:s (minutes:seconds)
Failure functions
91