Burkert Type 8635 - Manual (Page 107)

8635 - 105
O
PERATING THE
P
ROCESS
C
ONTROLLER
(S/HART)
Displays in operating mode AUTOMATIC
With the process controller activated, the following parameters can be displayed:
• Actual value of process variable (process value) PV_____ (- 999 ... 9999)
• Setpoint of process variable (process setpoint) SP_____ (- 999 ... 9999)
• Actual position of valve actuator POS __XXX (0 ... 100 %)
• Setpoint position of valve actuator after rescaling
or correction curve CMD __XXX (0 ... 100 %)
By pressing the arrow keys, you can switch between these display options.
In the AUTOMATIC mode, normal controlled operation is executed and monitored.
Meaning of the keys in the AUTOMATIC mode
Operating mode AUTOMATIC
Switch over the display
Change the process setpoint:
With configured supplementary functions
P.CONTRL / P.CO SETP / SETP INT
and SP display set.
or
or
> 3 s
NOTE If the device is in the safety position (for the relevant configuration, see menu item SIG-
ERR or BIN-IN), the message SAFE XXX appears on the display.
If the menu item
CUTOFF is activated and the process valve is in the tight-closing range,
a flashing MIN or MAX symbol appears on the display.
If the process value (PV) is outside the range of measurement (above or below), a
flashing bar appears on the display.
Make P.TUNE (process tune) ready for start:
With PID self-optimization activated, P.CONTRL / P.CO TUNE / P.TUN ACT
and
AUTOMATIC
mode
MANUAL mode
or
(> 5 s)
Switch over
display
Menu item
Configuration
or
Release key
END
active
SP
No
operating
action
P.TUNE
Make (process
tune) ready for
start
PV_____
SP_____
POS__XXX
CMD __XXX
and
Set process
setpoint P.TUNE
(process tune)
(> 3 s)
Release key