ABB ControlMaster CM10 User Manual page 33

ControlMaster CM10, CM30 and CM50
Universal process controllers,
...Basic / ...Loop 1 Control / ...PID
Derivative Time 1
Manual Reset
: The controller is shipped with null PID values (P=100, I=off & D=0). To enable the controller to control the process
Note
it is connected to, these values must be tuned accordingly. This can be achieved via the AutoTune function or manual
adjustment. If the controller is tuned manually the table below provides details of some suggested values to start from.
These values are only suggested starting values and should not be used as an alternative to proper tuning of the Controller.
Process Type
Temperature (fast)*
Temperature (slow)*
Pressure (fast)
Pressure (slow)
Level (fast)
Level (slow)
Flow
*For temperature loops, control performance can be improved via the use of Derivative.
A suggested starting value is
IM/CM/S–EN Rev. R
1 1 1
/ , / and / DIN
8 4 2
Set in seconds.
When the Integral Time is Off, the manual reset parameter is activated. When the process
variable is equal to the control setpoint, the output value is equal to the manual reset value.
P I
10 30
10 300
100 1
10 30
100 1
10 30
100 1
1 6 th
/ of the Integral value.
6 Basic Level
31