Information
PVST can be aborted by sending a Reset command:
●
local (manual), in selector switch position local operation, via push button
Reset.
●
From Remote, in selector switch position Remote control via a digital input.
Assignment: RESET
9.9.1. PVST: activate
Required user level: Specialist (4) or higher.
Device configuration M0053
Application functions M0178
Activation M0212
PVST M0851
Default value: Function not active
Setting values:
Function not active
<PVST> function deactivated.
Function active
<PVST> function activated.
9.9.2. PVST source: set
Customer settings M0041
PVST M0852
PVST source M1139
Default value: Active interface
Setting values:
Active interface
Signals for triggering a PVST are sent via the active interface, i.e. changing the
command source also changes the failure source of the PVST.
I/O interface
Signals for triggering a PVST must be configured as binary signals (default: +24 V
DC) at a digital input.
9.9.3. Operation mode for PVST
Required user level: Specialist (4) or higher.
Customer settings M0041
PVST M0852
PVST operation mode M0889
Default value: Stroke
Setting values:
Stroke
Stroke controlled PVST; operation across defined stroke (parameter PVST stroke)
within a defined time (parameter PVST monitoring). In this operation mode, the PVST
can be started in any valve position (even outside the end position).
End position test
Operating time controlled PVST; operation within a defined time (parameter PVST
operating time) after leaving an end position. In this operation mode, PVST can only
be started from one of the end positions.
9.9.4. Behaviour for PVST: define
The test can be performed in direction OPEN or direction CLOSE.
Customer settings M0041
PVST M0852
PVST behaviour M0853
Default value: OPEN
Setting values:
OPEN
Testing by operation in direction OPEN.
86
Actuator controls
Failure functions ACV 01.2/ACVExC 01.2