Flowlimit; Automatic Night Setback; Relay Outputs - Grundfos MAGNA3 Montage- Und Betriebsanleitung

12.4 FLOW
LIMIT
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Home > Settings > FLOW
LIMIT
FLOW
LIMIT
Enable FLOWLIMIT function
•
Set FLOWLIMIT.
•
Setting:
1. To enable the function, select "Active" with
[OK].
2. To set the FLOW , press [OK] to start the setting.
LIMIT
3. Select digit with and and adjust with
4. Press [OK] to save.
H
25 %
Setting range
Q
Fig. 26 FLOW
LIMIT
The FLOW function can be combined with the following
LIMIT
control modes:
Prop. press.
•
Const. press.
•
Const. temp.
•
Constant curve.
•
A flow-limiting function ensures that the flow never exceeds the
entered FLOW value.
LIMIT
The setting range for FLOW
LIMIT
pump.
The factory setting of the FLOW
AUTO factory setting meets the max. curve. See fig. 20.
ADAPT
28
or and press
or .
Q
90 %
max
Q
Q
set max
is 25 to 90 % of the Q of the
max
is the flow where the
LIMIT

12.5 Automatic Night Setback

Navigation
Home > Settings > Automatic Night Setback
Automatic Night Setback
To enable the function, select "Active" with
[OK].
Once Automatic Night Setback has been enabled, the pump
automatically changes between normal duty and night setback
(duty at low performance).
Changeover between normal duty and night setback depends on
the flow-pipe temperature.
The pump automatically changes over to night setback when the
built-in sensor registers a flow-pipe temperature drop of more
than 10 to 15 °C within approx. two hours. The temperature drop
must be at least 0.1 °C/min.
Changeover to normal duty takes place without a time lag when
the temperature has increased by approx. 10 °C.
Automatic Night Setback cannot be enabled
Note
when the pump is in constant-curve mode.

12.6 Relay outputs

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Home > Settings > Relay outputs
Relay outputs
Relay output 1
•
Relay output 2.
•
The relay outputs can be set to the following:
Not active
•
Ready
•
Alarm
•
Operation.
•
The pump incorporates two signal relays, terminals 1, 2 and 3, for
a potential-free alarm signal, ready signal and operating signal.
For further information, see section 4.5.1 Relay outputs.
Set the function of the signal relays, alarm signal (factory setting),
ready signal and operating signal, on the pump control panel.
The output, terminals 1, 2 and 3, is electrically separated from the
rest of the controller.
The signal relay is operated as follows:
Not active
•
The signal relay is deactivated.
Ready
•
The signal relay is active when the pump is running or has
been set to stop, but is ready to run.
or and press