Grundfos MAGNA 2000 Series - Priority of Settings

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7.7.3 Temperature influence
Description of function, see section 6.6 Temperature
influence.
Note: If the pump is in control mode AUTO
ADAPT or
constant curve, the temperature influence cannot be
set with the R100.
The temperature influence function can be activated
in this display when the control mode is proportional
pressure or constant pressure, see section
7.7.1 Control mode.
In the case of temperature influence, the pump must
be installed in the flow pipe. It is possible to choose
between maximum temperatures of 50°C and 80°C.
When the temperature influence is active, a small
thermometer is shown in the display "Setpoint" in
menu OPERATION, see section 7.5.1 Setpoint.
7.7.4 Buttons on pump
To prevent unauthorized persons from operating the
pump, the function of the buttons , and can
be deactivated in this display. The buttons can be re-
activated only with the R100.
The buttons can be set to:
• Active
• Not active.
7.7.5 Signal relay
If an expansion module has been fitted, the signal re-
lay function can be set in this display.
• Fault (functions as a fault signal relay)
• Ready (functions as a ready signal relay)
• Operation (functions as an operating signal relay).
7.7.6 Pump number
A number from 1 up to and including 64 can be allo-
cated to a pump or can be changed so that the R100,
Pump Management System 2000 or other systems
can distinguish between two or more pumps.
7.8 Priority of settings
The external forced-control signals will influence the
settings available on the pump control panel and with
the R100. However, the pump can always be set to
max. curve duty or to stop on the pump control panel
or with the R100.
If two or more functions are activated at the same
time, the pump will operate according to the setting
with the highest priority.
The priority of the settings is as shown in the table.
Example: If the pump has been forced to stop via an
external signal, the pump control panel or the R100
can only set the pump to max. curve.
With expansion module:
As illustrated in the table, the pump does not react to
external signals (max. curve and min. curve) when
the pump is controlled via bus.
If the pump is to react to external signals (max. curve
and min. curve), the system must be configured for
that function.
For further details, please contact Grundfos.
Priority
Possible settings
Pump
control
panel
or R100
External
signals
Bus signal
1Stop
2 Max. curve
3Stop
Stop
4
Max. curve Max. curve
5
Min. curve Min. curve Min. curve
6
Setpoint
setting
Setpoint
setting
Not active when the pump is controlled
via bus.
Only active when the pump is controlled
via bus.