By-Pass Application: Configure; Lift Plug Valve (Lpv) - AUMA AC 01.2 Manual

Application functions
Function not active
Function active
8.7.2.

By-pass application: configure

Main valve
By-pass valve
8.8.

Lift Plug Valve (LPV)

Application
Requirements
Function
64
Device configuration M0053
Application functions M0178
Activation M0212
By-pass function M0941
Default value: Function not active
Setting values:
Bypass function deactivated.
Bypass function activated.
The actuators for the two MOVs (valves) have to be configured according to their
application (main or by-pass valve).
Customer settings M0041
By-pass function M0942
By-pass application M0943
Default value: Main valve
Setting values:
Actuator for main valve.
Actuator for by-pass valve.
Option
A "Lift Plug Valve" is a special valve whose closing element must first be lifted out
of its seat or locking position before being rotated for opening or closing the valve.
Locking of the valve and/or pressure relief prior to rotation of the closing element
can thus be implemented. Once the end position has been reached, the closing
element has to be lowered again. Such valves are in particular used for significant
pressure differences (pressure relief) and safety-related systems (locking).
Two actuator controls and actuators are required, one of them is considered
as master actuator (MA), the other one as slave actuator (SA).
The actuator controls of the master actuator require an additional <Parallel in-
terface > I/O Interface 2.
Due to the special design of the LPV valves, they can only be operated in
OPEN-CLOSE duty (no modulating duty). For this type of duty, two actuators are
required which are operated as a master-slave-system with master actuator (rotary
movement) and slave actuator (stroke movement). However, only one actuator or
actuator controls is "visible" at the DCS, i.e. the slave actuator is completely controlled
and monitored by the master actuator. Communication between master and slave
actuator is performed via the additional <Parallel interface> I/O Interface 2.
Actuator controls
AC 01.2/ACExC 01.2