Setpoint sensor configuration

NOTICE

When an external signal is used at the analogue input as setpoint source, the setpoint value must be coupled to the analogue signal.
Open the editor’s context menu for the affected setpoint for coupling.

NOTICE

The 24 V DC power supply is only available once the analogue input AI1 or AI2 has been configured for a type of use and a signal type.

The use of an external signal at the analogue input as setpoint source requires coupling of the setpoint value to the analogue signal:

In the “Settings” menu , select

1. “Set control mode”.
2. Depending on the selected control mode, the setpoint editor displays the adjusted setpoint (setpoint delivery head Δp-v, setpoint temperature T-c,…).
2. Select setpoint and confirm by pressing the control knob.
3. Press Context button and select “Setpoint of external source”.

Selection of possible setpoint sources:

NOTICE

When an analogue input is selected as setpoint source, but the type of use for example has been selected as “Not configured” or as actual value input, the pump displays a configuration warning.
The fallback value is assumed to be the setpoint value.
Either another source must be selected or the source must be configured as setpoint source.

NOTICE

After selecting one of the external sources, the setpoint is coupled to this external source and can no longer be adjusted in the setpoint editor or on the home screen.
This coupling can only be cancelled in the context menu of the setpoint editor (as described above) or in the “External setpoint sensor” menu. The setpoint source must be adjusted again to “Internal setpoint”.

The coupling between external source and setpoint is marked both in the home screen, and in the setpoint editor in blue. The status LED also becomes blue.

After selecting one of the external sources, the “External setpoint source” menu is available to configure the parameters of the external source.
For this purpose, go to the “Settings” menu

1. “Set control mode”
2. “External setpoint source”.

Possible selection:

The setpoint source can be changed in select “Setpoint source”.

The setpoint source should be configured when an analogue input is used as source. To do this, select “Set setpoint source”.

Possible selection of type of use to be adjusted:

Select “Setpoint sensor” as setpoint source.

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 type of use:

After selecting the signal type, it is defined how standard values are used:

Defined standards for the transfer of the signal are used with “Use specifications”. Finally the setting of the analogue input is ended as setpoint sensor.

Signal assignment for “Use specifications”

Select “User-defined setting” to configure additional settings:
Optional cable break detection is available for 0 to 10 V and 0 to 20 mA signal types only.

Select “Switched off” to switch off cable break detection.
Select “Switched on” to activate cable break detection only within an adjustable limit value.

Define limit value for cable break by turning the control knob and confirm by pressing it.

In the next step define whether

• the analogue signal only changes the setpoint
• and the pump is additionally switched off through the analogue signal.

A setpoint change can be done through analogue signals without switching on and off the pump through the signals. In this case, “Switched off” is selected.
If the “On/off through analogue signal” function is switched on, the limit values must be defined for switching on/off.
Subsequently, assign the MIN signal/value and MAX signal/value.

For the transfer of analogue signal values to setpoints, only the transfer ramp is now defined. For this purpose, the minimum and maximum support points of the characteristic curve are specified and the respective setpoints are amended (MIN signal/value assignment and MAX signal/value assignment).

The value for the minimum signal describes the lower signal value of the transfer ramp with an associated value of 2 m. In this example, the lower signal value is 2 V.

The value for the maximum signal describes the upper signal value of the transfer ramp with an associated value of 8 m. In this example, the lower signal value is 10 V.

When all signal/value assignments have been performed, the setting of the analogue setpoint source is completed.

An editor for adjusting the substitute setpoint in the event of a cable break or wrong configuration of the analogue input will open.

Select substitute setpoint. This setpoint is used when detecting a cable break at the external setpoint source.