Deactivate feedback
This block provides the standard "Disabling feedback for valves" function that is described in
the APL Online Help. Feedback monitoring can be deactivated separately for each feedback
with
NoFbkOpen
or
NoFbkClose
as required.
Suppressing messages using the
MsgLock
parameter
This block provides the standard "Suppressing messages using the
MsgLock
parameter"
function that is described in the APL Online Help.
Monitoring the feedback for the auxiliary valve
The auxiliary valve provides dynamic and static monitoring of the feedback. No special
monitoring time can be configured for overseeing the retention of the end position of the
auxiliary valve. If the end position is exited without the corresponding command, a "monitoring
runtime error" is reported after expiration of the time configured under "Control".
Monitoring is disabled by default and no connections are displayed.
The following parameters can be used to monitor the auxiliary valve.
Parameter
Function
FbkAuxVOpen
1 = Auxiliary valve open feedback signal
FbkAuxVClose
1 = Auxiliary valve closed feedback signal
NoFbkAuxVOpen
1 = No feedback present for "auxiliary valve open" (default = 1)
NoFbkAuxVClose
1 = No feedback present for "auxiliary valve closed" (default = 1)
MonitorAuxV
1 = Feedback monitoring of the auxiliary valve (default = 0)
MonAuxVTime
Monitoring time after auxiliary valve operation in [s]
MonDynAuxVErr
Dynamic monitoring error pending
MonStaAuxVErr
Static monitoring error pending
Otherwise, the monitoring works like the monitoring function of the control valve.
Selecting a unit of measure
This block provides the standard "Select unit of measurement" function that is described in the
APL Online Help.
Neutral position
This block provides the standard "Neutral position for motors, valves and actuators" function
that is described in the APL Online Help.
The neutral position (de-energized state) for the auxiliary valve is set using the
SafePosAux
parameter.
●
SafePosAux
= 0 means that the auxiliary valve closes with
Ctrl
= 0 and opens with
Ctrl
= 1.
●
SafePosAux
= 1 means that the auxiliary valve opens with
Ctrl
= 0 and closes with
Ctrl
= 1.
SIPART PS2 HART
7.1 SipPS2HA
SITRANS Library for PCS 7
204
Function Manual, 05/2019, A5E35351976-11
Summary of Contents for SITRANS PCS 7
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Page 418: ...SITRANS P 10 2 SitraPDr SITRANS Library for PCS 7 418 Function Manual 05 2019 A5E35351976 11 ...
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