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Configuration
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WILO SE 2020-12
6.6.9.1
PID Settings
Basic settings for the PID control.
ƒ
Control Value
Specifying the control parameter.
Factory setting: Level
Input: Level, Pressure, Flow
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Set Point Source
Setpoint specification for the control.
Factory setting: Analog Input
Input: Analog Input, Bus Input, Fix
–
Analog Input
The values of the lower-level control are transmitted in analogue form to the I/O
module 2 (ET-7002).
NOTICE! Configure the analogue input with the "setpoint"
value!
–
Bus Input
The values of the primary control are transmitted to the pump via the Ethernet
network. ModBus TCP or OPC UA are used as communication protocols.
–
Fix
Fixed specification for the setpoint.
ƒ
Set Point fix Value
If the "Fix" value is selected in the setting "Set Point Source", enter the correspond-
ing setpoint here.
Factory setting: 0
Input: free input of the desired setpoint. The units for the control values are:
- Level = m
- Pressure = bar
- Flow = l/s
ƒ
Start Level
When the set level is reached, at least one pump starts. The actual number of pumps
started depends on the deviation from the target value. The maximum number of
pumps to be started is set in the menu "System Limits" (see System Limits ➜ Pump
Limits and Changer).
Factory setting: 0.05 m
Input: 0.05 to 100 m
ƒ
Stop Level
All pumps are switched off when the set level has been reached.
Factory setting: 0.05 m
Input: 0.05 to 100 m
6.6.9.2
Controller Parameter
Basic settings for the PID controller.
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Proportional Kp
Gain factor
Factory setting: 1
Input: -1000 to 1000
NOTICE! For fill level control, set the proportional value Kp negative (-)!
ƒ
Integral Time Ti
Reset/integral time
Factory setting: 0.01 min
Input: 0 to 10000 min
ƒ
Derivative Time Td
Differential/retention time
Factory setting: 0 min
Input: 0 to 1000 min
NOTICE! The differential component Td is generally not used in wastewater ap-
plications. Preferably set value to "0"!
ƒ
Deviation
Permissible deviation between actual value and setpoint.
Factory setting: 5 %
Input: 0 to 100 %
Control conditions
–
Setpoint deviation is outside the defined limit.
Summary of Contents for DD-I
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