KSB PumpDrive 2 - Page 147

10 Parameter List PumpDrive 2
147 of
212
Parameter Description Help text Possible settings Unit Factory setting
3-6-3 Actual Value Source Selecting the source for the actual value:
Activating the field bus as the actual value
source. Analog inputs or PumpMeter have
the highest priority.
▪ Local
▪ Field Bus
Local
3-6-4 Controller Settings
3-6-4-1 Automatic
determination of
controller parameters
3-6-4-1-1 Start Test Sequence Starting the test sequence for automatically
determining the controller parameters
3-6-4-1-2 Amount of Sudden
Speed Change
Extent of speed changes during the test
sequence for automatic determination of
the controller parameters.
0 … 3.2.2.2 rpm 150
3-6-4-1-3 Controller Type Selection of the controller type: PI or PID ▪ PI
▪ PID
PI
3-6-4-1-4 Process Response Time Time that lapses after a speed change until
the controlled variable exhibits almost no
change at all (after this time, the controlled
variable has reached approximately
95percent of its full-scale value)
0,1..10000,0 s 3
3-6-4-2 Proportional Constant Setting the proportional constant of the
controller
0,01 … 100,00 Dependent on
size
3-6-4-3 Integral Time (Integral
Constant)
Setting the integral constant of the
controller
0,1 … 9999,9 s Dependent on
size
3-6-4-4 Rate Time (Differential
Constant)
Setting the differential constant of the
controller
0,00 … 100,00 s Dependent on
size
3-6-4-5 Controller Operating
Point
Controller operating point. This corresponds
with the speed of the pumps at the typical
operating point.
0 … 3-2-2-2 rpm 1500
3-6-4-6 Setpoint Ramp Time Time defining the setpoint ramp 0,0 … 600,0 s 3,0
3-6-4-7 Deviation Permitted
when Actual Value =
Setpoint
Configurable band within which the Actual
Value = Setpoint message is active via a
digital output.
Minimum to maximum limit of value range
set
Dependent on the
unit set
3-6-4-8 Differential Constant
Limitation
The maximum differential gain is limited in
order to suppress measurement noise, for
example.
1,00 … 20,00 3,00
3-6-4-9 ARW Delay Configuration of the ARW measure, time
sampling factor at least 5 * ts
0,0 … 1000,0 s 2,0