Festo CMSX-...-C-U-F1 series, Manual

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CMSX-...-C-U-F1-...
38 Festo – CMSX-...-C-U-F1-... – 1506a English
7.6.7 Menu parameter (3)
The commands in the parameters menu offer access to controller parameters as well as parameters for
scaling the analogue setpoint value specification and the valve operating area.
Display Description
MENU 3 PARA
DEADBAND
Establishes the dead zone of the positioner (
è
Fig. 28).
0.5 ... 10%
Dead zone in % of the scaled work range
(Presetting: 3 %)
PID--P
Establishes the P-part (proportional part) of the PID controller
1 ... 20
P-part (presetting = 1)
PID--D
Establishes the D-part (differential part) of the PID controller
1 ... 20
D-part (presetting = 4)
MIN
Establishes the lower limit of the valve operating area (
è
Fig. 29)
0 ... MAX -1%
Valve position in % of the actual work space
(presetting = 0 %)
MAX
Establishes the upper limit of the valve operating area (
è
Fig. 29)
MIN+1% ... 100%
Valve position in % of the actual work space
(presetting = 100 %)
SPMIN
Establishes the minimum setpoint signal (presetting = 0 %).
1)
0 ... SPMAX-20%
Smallest setpoint value in % of the complete work
range
SPMAX
Establishes the maximum setpoint signal (presetting = 100 %).
1)
SPMIN+20% ... 100%
Largest setpoint value in % of the complete work range
1)
This limits the work range of the setpoint signal (
è
Fig. 30)
Tab. 18 Menu parameter (3)
The parameters can also be selected and set with the Add and Sub key (
è
Fig. 24,
2
). Pressing the
Set key confirms the current selection or setting and returns to the menu.
Note
If the controller is in operation (operating status Running), the new setting becomes
effective immediately after the Set key is pressed.
MENU
3 PARA
*PARA*
deadband
pid--p
pid--d
...
6
3
DEADBAND
...
3.0 %
3.1 %
...
6
1
2
1
2
3
Fig. 27 Movement in the Parameter menu configuration (3) - example DEADBAND – dead zone