Wilo Stratos GIGA2.0-I Notice De Montage Et De Mise En Service page 229

Installation and operating instructions Wilo-Stratos GIGA2.0-I, Wilo-Stratos GIGA2.0-D
Communication interfaces: Setting and function
Select substitute setpoint. This setpoint is used when detecting a cable break at the
external setpoint source.
Actual value sensor
The actual value sensor provides:
ƒ
Temperature sensor values for temperature-dependent control modes
–
Constant temperature
–
Differential temperature
–
Room temperature
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Temperature sensors values for temperature-dependent additional functions
–
Heating/cooling quantity measurement
–
Automatic heating/cooling switchover
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Differential pressure sensor values for:
–
differential pressure control with index circuit actual value logging
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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
NOTICE
The selection of the analogue input as a connection for a sensor requires the corre-
sponding configuration of the analogue input.
First open the overview menu to view the current configuration and use of analogue in-
put.
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 dis-
played. In order to make or change settings:
In the "Settings" menu , select
1. "External interfaces"
2. "Function analogue input AI1" ... "Function analogue input AI4"
3. "Set analogue input".
First, select type of use:
, select
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