Menu Operation; Fault Indications - Grundfos E Serie Instrucciones De Instalación Y Funcionamiento

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8.1 Menu
OPERATION
The first display in the menu is this.
8.1.1 Setpoint
Setpoint set
Actual setpoint
Actual value
Set the desired setpoint in this display.
In control mode controlled, the setting range is equal to the
sensor measuring range, e.g. 0 to 25 m.
In control mode uncontrolled, the setpoint is set in % of the
maximum performance. The setting range will lie between the
min. and max. curves.
If the pump is connected to an external setpoint signal, the value
in this display will be the maximum value of the external setpoint
signal. See section
12. External setpoint
Setpoint and external signal
The setpoint cannot be set if the pump is controlled via external
signals (Stop, Min. curve or Max. curve). The R100 will give this
warning: External control!
Check if the pump is stopped via terminals 2-3 (open circuit) or
set to min. or max. via terminals 1-3 (closed circuit).
See section
10. Priority of
settings.
Setpoint and bus communication
The setpoint cannot be set either if the pump is controlled from an
external control system via bus communication. The R100 will
give this warning: Bus control!
To override bus communication, disconnect the bus connection.
See section
10. Priority of
settings.
18
signal.
8.1.2 Operating mode
Set one of the following operating modes:
Max.
Normal (duty)
Min.
Stop.
The operating modes can be set without changing the setpoint
setting.

8.1.3 Fault indications

In E-pumps, faults may result in two types of indication: alarm or
warning.
An alarm fault will activate an alarm indication in the R100 and
cause the pump to change operating mode, typically to stop.
However, for some faults resulting in alarm, the pump is set to
continue operating even if there is an alarm.
A warning fault will activate a warning indication in the R100, but
the pump will not change operating or control mode.
The indication "Warning" only applies to three-phase
Note
pumps.
Alarm
In case of alarm, the cause will appear in this display.
Possible causes:
No alarm indication
Too high motor temperature
Undervoltage
Mains voltage asymmetry (11-22 kW)
Overvoltage
Too many restarts (after faults)
Overload
Underload (11-22 kW)
Sensor signal outside signal range
Setpoint signal outside signal range
External fault
Other fault.
If the pump has been set up to manual restart, an alarm indication
can be reset in this display if the cause of the fault has
disappeared.

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