System (1.2); Operating Mode (1.2.1) - Grundfos Control DDD Montage- Und Betriebsanleitung

8.4.2 System (1.2)

Fig. 20 System
Description
The display shows the operational state of the system. Go to
subdisplays showing details.
The display allows you to open the displays below:
• Operating mode
• Setpoint
• Setpoint influence
• Measured values
• Analog inputs
• Log graph
• Battery status
• Status of remote sensors
• CU354 GSM.
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8.4.3 Operating mode (1.2.1)

Fig. 21 Operating mode
Description
The display shows the operating mode of the system and from
where it is controlled.
Operating modes
The system has four operating modes:
1. Normal
– The pumps adapt their performance to the requirement.
2. User-defined
– The pumps run at a constant speed set by the user. It is
usually a performance between "Max." and "Min.".
3. Stop
– All pumps have been stopped.
4. Emergency run
– The pumps run according to the setting made in the
Emergency run (4.3.5) display.
The performance required in these operating modes can be set in
the "Settings" menu.
• User-defined
• Emergency run.
See sections 8.7.44 User-defined duty (4.3.26)
8.7.25 Emergency run (4.3.5).
The current operating mode can be controlled from four different
sources that are mentioned below in prioritised order:
• fault
• external signal
• CU 354
• bus.
Control source
You can set the system to remote control via an external bus
(option). In this case, you must set a setpoint and an operating
mode via the bus.
In the "Settings" menu, you can select whether CU 354 or the
external bus is to be the control source.
The status of this setting is shown in the "Operating mode"
display.
and