Wilo -Stratos GIGA2.0-I Einbau- Und Betriebsanleitung Seite 203

Max. signal/value assignment
Analogue input (AI2)
Signal value
Corresponding value
Fig. 81: Max. signal/value assignment
...►
Set input for external setpoint
Select setpoint source
Current source: Analogue input 2
Set setpoint source
Setpoint sensor: 4 – 20 mA
Substitute setpoint in the event of a cable break
Current: 6.0 m
Fig. 82: Substitute setpoint in the event of a
cable break
Installation and operating instructions • Wilo-Stratos GIGA2.0-I, Wilo-Stratos GIGA2.0-D • Ed.02/2022-07
The value for the maximum signal describes the upper signal value of the transmission ramp
with an associated value of 100 %. In this example, the upper signal value is 10 V.
When all signal/value assignments have been performed, the setting of the analogue set-
point source is completed.
Set maximum point
An editor for adjusting the substitute setpoint in the event of a cable break or wrong config-
of setpoint pump curve of
delivery head for Δp-v
.
uration of the analogue input will open.
Select substitute setpoint. This setpoint is used when detecting a cable break at the external
setpoint source.
If a
cable break at the
external setpoint source
is detected, this substitute value is
used
as the setpoint.
Actual value sensor
The actual value sensor provides:
• Temperature sensor values for temperature-dependent control modes:
–
Constant temperature
–
Differential temperature
–
Room temperature
• Temperature sensors values for temperature-dependent additional functions:
–
Heating/cooling quantity measurement
–
Automatic heating/cooling switchover
• Differential pressure sensor values for:
–
Differential pressure control with index circuit actual value logging
• User-defined sensor values for:
–
PID control
Possible signal types when selecting the analogue input as actual value input:
Actual value sensor signal types:
0 ... 10 V: voltage range of 0 ... 10 V for transfer of measurement values.
2 ... 10 V: voltage range of 2 ... 10 V for the transfer of measurement values. Cable break is
detected for a voltage below 2 V.
0 ... 20 mA: electric current range of 0 ... 20 mA for transfer of measured values.
4 ... 20 mA: electric current range of 4 ... 20 mA for transfer of measured values. A cable
break is detected in case of electric current below 4 mA.
PT1000: The analogue input evaluates a PT1000 temperature sensor.
Actual value sensor configuration
First open the overview menu to view the current configuration and use of analogue input.
To do this, in the "Settings" menu
1. "External interfaces"
2. "Function analogue input AI1" ... "Function analogue input AI4"
3. "Overview of the analogue input".
Type of use, signal type and other set values for selected analogue input will be displayed. In
order to make or change settings:
NOTICE
The selection of the analogue input as a connection for a sensor requires
the corresponding configuration of the analogue input.
, select
en
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