Wilo Stratos MAXO Notice De Montage page 82

Installation and operating instructions Wilo-Stratos MAXO/-D/-Z
Communication interfaces: Setting and function
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 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, select
1. "External interfaces"
2. "Analogue input (AI1) function" or "Analogue input (AI2) function"
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. "Analogue input (AI1) function" or "Analogue input (AI2) function"
3. "Set analogue input".
First select type of use:
Select type of use
Analogue input (AI2)
Not configured
Setpoint controller
Differential pressure sensor
Temperature sensor
External sensor
Fig. 78: Settings dialogue actual value sensor
Select one of the types of use "Differential pressure sensor", "Temperature sensor" or
"External sensor" as one of the usage types.
NOTICE
If another usage type has been set to "Not configured" in the "Select type of use"
menu, check whether the analogue input is already used for another type of use.
If necessary, select a different source.
Select the "Signal type" after selecting the actual value sensor:
en
Use analogue input as
actual value input for
temperature sensor, e.g. for
control mode T-c.
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