7 VG9H 70 en
17
4.2
Guided start-up
Guided startup offers a fast view of the most critical param-
eters of the ValvGuard controller, actuator and valve config-
uration. After verifying the parameters the valve travel
calibration is recommended. The guided start-up is entered
by pressing the
=
and
?
keys simultaneously.
The configuration parameters are listed in following order,
see explanation from 4.4:
Actuator type
ATYP
Valve type
VTYP
Positioner fail action
PFA
Extra pneumatics instrumentation
EXTI
Actuator size
ACTS
Spool valve type
STYP
Automatic travel calibration
CAL
If you modify any of the parameters you will also need to
calibrate the device. See 4.5 for detailed description.
4.3
Configuration menu
The local user interface is organised in a menu structure. To
enter the menus press
+
and
-
simultaneously in the
measurement monitoring view panel. To move to the next
or previous selection by pressing
+
or
-
accordingly (see
Fig. 18.)
4.4
Configuration parameters
When
PAR
is on the display you may enter the configuration
menu by pressing the
?
key. In this menu the most important
configuration and signal modification parameters are viewa-
ble. You may view the current value and edit them by pressing
the
?
key at the relevant parameter. The name of the param-
eter will appear on the upper row of the display and the cur-
rent value is on the lower row. Default parameters and
parameter ranges can be seen in table in Chapter 13.
4.4.1
Actuator type,
ATYP
In order to optimise the control performance the device
needs to be informed about the actuator type.
After selecting
ATYP
on the display, press the
?
key
to enter the edit state and
ATYP
starts to blink.
Select between two values
1
-
A
or
2
-
A
using the
+
and
-
keys. The value
1
-
A
indicates a single acting
actuator and
2
-
A
a double acting actuator.
To conclude press the
?
key when the desired
value is shown on the display.
4.4.2
Valve type,
VTYP
To compensate for nonlinearity of the position feedback
caused by the actuator linkage mechanism of a linear con-
trol valve, the appropriate selection must be made on the
VTYP
display.
After selecting
VTYP
on the display, press the
?
key
to enter the edit state and the
VTYP
starts to blink.
Select between two values
rot
or
LIn
using the
+
and
-
keys. The value
rot
indicates a rotary valve
and
LIn
a linear valve.
To conclude press the
?
key when the desired value is
shown on the display.
4.4.3
Positioner fail action,
PFA
This section describes the function of the actuator.
Set value according to Fig. 10 for double acting actuators.
Generally set value according to the valve fail safe position.
For single acting actuators set value in the spring direction.
This action will also take place when the controller software
discovers a fatal device failure. See Fig. 10 for correct set-
tings.
Once
PFA
is displayed, press the
?
key to enter the
edit state and the
PFA
will start blinking.
You may select between two values by pressing the
+
or
-
key. The
CLO
value indicates that the valve
ought to be closed in fail action situations. The
OPE
value indicates the valve to be opened in fail action
situations.
After the desired value is displayed, press the key
?
to conclude the operation.
NOTE:
You may cancel any action by pressing the
=
button.
Cancelling of operation returns user interface view one
level up in menu hierarchy.
Fig. 17
Guided start-up
— brief push
NOTE:
Default values can be restored by using DTM.
