Operating Modes; Local Mode, External Stop Not Activated; Local Mode, External Stop Activated - Grundfos Hydro Multi-B Instrucciones De Instalación Y Funcionamiento

10. Operating modes

User operation depends on the system mode. The system modes are described in the following sections.

10.1 Local mode, external stop not activated

In this mode, the system is locally controlled, and the external stop via digital input is not activated.
The flow charts below show examples of how settings can be made.
Starting and stopping the system
Changing the setpoint while the system is running
Changing the setpoint while the system is in "OFF" mode

10.2 Local mode, external stop activated

In this mode, the system is locally controlled, and the external stop via digital input is activated.
External stop via digital input has higher priority than local control. This means that settings can be changed locally, but they will not be
effective until external stop has been deactivated. The flow charts below show examples of how settings can be made.
Starting and stopping the system
Note
If the buttons are not touched for 3 seconds, the CU 323 will revert to the initial display.
Changing the setpoint
Note
If the buttons are not touched for 3 seconds, the CU 323 will revert to the initial display.
Starting the system
ON
OFF
On
Off
Changing the setpoint
3.5
OFF
or
E.st
On
Off
E.st
or
Stopping the system
3.5
On
Off
3.6
3.4
Changing the setpoint
3.6
3.5
3.4
Stopping the system
ON
OFF
On
Off
Starting the system
OFF
ON
On
Off
Changing the setpoint
3.6
3.5
3.4
OFF
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