7.7.5 Rate time Td setting
The rate time determines the D portion of the controller. Typically, no setting
is required here (= 0), since actuator and valve – due to the operating time –
cannot react abruptly to a sudden occurrence of an error variable.
Æ
Via the menu to parameter:
MAIN MENU (M0)
SETTINGS (M1)
PROCESS CONTROL PID (M1I)
RATE TIME Td (M1I12)
Default value: 0 s
Setting range:
0 to 100 seconds
Information Ò Increase Td in case of propensity to oscillation
Ò Initial v
alue for actuators: 0
7.7.6 Derivative gain Kd setting
The derivative gain determines the D portion of the controller. Typically, no setting is
required here (= 0), since the actuator and valve – due to the operating time - can-
not react abruptly to a sudden occurrence of an error variable.
Æ
Via the menu to parameter:
MAIN MENU (M0)
SETTINGS (M1)
PROCESS CONTROL PID (M1I)
DERIVATIVE GAIN Kd (M1I13)
Default value: 0
Setting range: 0 to 100
64
Actuator controls
AUMATIC AC 01.1/ACExC 01.1 Profibus DP Manual
EDIT M1I13
DERIVATIVE GAIN Kd
0
:EDIT ¿:OK C:ESC
EDIT M1I12
RATE TIME Td
0s
:EDIT ¿:OK C:ESC