Grundfos MAGNA3 25-100 (N) User manual

GRUNDFOS INSTRUCTIONS
MAGNA3
AUTOADAPT 6.5 m
Control mode
Home Status Settings Assist
Setpoint
Estimated flow rate Head
4.0 m
8 m3/h
MAGNA3
DISPLAY MENU
OVERVIEW
Valid from
model C
GB / DE

HOME
The home screen is
congured with the most
relevant settings (as shortcut)
and status parameters.
This screen can be customized
under general settings.
STATUS SETTINGS ASSIST
Operating status
»Operating mode, from
»Control mode
Pump performance
»Max. curve and duty point
»Resulting setpoint
»Liquid temperature
»Speed
»Operating hours
Power and energy consumption
»Power consumption
»Energy consumption
Warning and alarm
Heat energy monitor
Operating log
»Operating hours
»Trend data
Fitted modules
Date and time
Pump identication
Multi-pump system
»Operating status
»System performance
»Power and energy consumption
»Other pump 1, multi-pump sys.
Setpoint
Operating mode
»Normal
»Stop
»Min.
»Max.
Control mode
»AUTOADAPT
»FLOWADAPT
»Prop. pressure
»Const. pressure
»Const. temp.
»Di. temp
»Constant curve
Controller settings
FLOWLIMIT
Automatic Night Setback
Analog input
Relay outputs
»Relay output 1
»Relay output 2
Setpoint inuence
»External setpoint function
»Temperature inuence
Bus communication
»Pump number
»Forced local mode
General settings
»Enable/disable settings
»Alarm and warning settings
»Dry running (57)
»Internal sensor fault (88)
»Internal fault (157)
»Delete history
»Dene Home display
»Display brightness
»Return to factory settings
»Run start-up guide
Assisted pump setup
»Setting of pump
Setting of date and time
Multi-pump setup
Setup, analog input
Description, control mode
»AUTOADAPT
»FLOWADAPT
»Prop. press.
»Const. press.
»Const. temp.
»Dierential temp.
»Constant curve
Assisted fault advice
»Blocked pump
»Pump communication fault
»Internal fault
»Internal sensor fault
»Dry running
»Forced pumping
»Undervoltage
»Overvoltage
»High motor temperature
»External sensor fault
»High liquid temperature
»Comm. fault, twin-head pump
»This overview only includes
operation-relevant sub
menus.
1
3
5
2
4
1
5
6
2
4
3
Wizard
*
*
Alarms and warnings 6

SETTINGS
Status icons in display footer
1
Operating mode
= Automatic night setback
= Change of settings - locked
= Connected to eldbus
= Multi-pump system
= Master pump (multi-pump system)
= Slave pump (multi-pump system)
= Forced local mode (eldbus is overridden)
Normal
Stop
Min.
Max.
The pump runs according to the selected control
mode. Operating mode overrules Control mode.
See next page
The pump stops.
Minimum curve mode is used in periods
in which a minimum ow is required.
Maximum curve mode is used in periods
in which a maximum ow is required.
control mode 2
AUTOADAPT
Prop. press.
Const. press.
FLOWADAPT
Const. temp.
Dierential temp.
Constant curve
Δt
Δt
Δt
Δt
Operating mode can be externally controlled by digital input.
1
Δt
Δt
Δt

AUTOADAPT
Prop. press.
Const. press.
FLOWADAPT
Const. temp.
Dierential temp.
Constant curve
SETTINGS
Control mode 2
Recommended for most heating systems. During operation, the pump automatically
makes the necessary adjustment to the actual system characteristic.
The FLOWADAPT control mode combines a control mode and a function:
• The pump is running AUTOADAPT
• The delivered ow from the pump will never exceed a selected FLOWLIMIT.
* The FLOWLIMIT function can
be activated in combination
with all of the below
control modes.
Used in systems with relatively large pressure losses in the distribution pipes.
The head of the pump will increase proportionally to the ow in the system to
compensate for the large pressure losses in the distribution pipes.
We recommend this control mode in systems with relatively small pressure
losses. The pump head is kept constant, independent of the ow in the system.
In heating systems with a xed system characteristic, for example domestic hot-water
systems, the control of the pump according to a constant return-pipe temperature is relevant.
Ensures a constant dierential temperature drop across heating and cooling systems.
The pump will maintain a constant dierential temperature between the pump and the external sensor.
The pump can be set to operate according to a constant curve, like an uncontrolled pump.
Set the desired speed in % of the maximum speed in the range from minimum to 100%.
Δt
Two-pipe
Two-pipe
Two-pipe
One-pipe
Underoor
Hot water
Hot water
Δt
Δt
Δt
Two-pipe
The pump must be in operating mode ”Normal” in order for the pump to run according to
the selected control mode. The table shows the dierent control modes along with
a recommended application type.
2
Δt
Δt
Δt

3
Analog input
Building
Management
System/PLC
p
Building
Management
System/PLC
Function of analog input
External sensor feedback (option 1)
Dif. pressure
Contant temperature
Contant curve
Contant pressure
Poportional pressure
External signal input (option 2)
One of the following two options
can be used for analog input setup.
For monotoring the
resulting setpoint, view
the status menu, under
pump performance.
The signal input is an inuence on the given setpoint
(manually set by the user). The outcome from these two
factors is the resulting setpoint.
The locally chosen setpoint is used as the 100% reference
according to the inuence which the signal input provides.
Example: If the setpoint is set at 4m and the signal input gives
a maximum value (10V or 20mA), the resulting setpoint will be
4 m. If the signal input is reduced by 50%, the resulting setpoint
will change accordingly, in a linear manner between the
minimum and the manually entered setpoint.
For more information regarding setpoint inuence,
please see next page.
From factory, the internal temperature
sensor is used for feedback.
Dif. temperature
Heat energy monitor Is automatically activated if an external
temperature sensor is installed
The pump receives a signal (0-10 V or 4-20mA)
which inuences the setpoint of the pump.
Can be used in the following control modes:
Controller settings (Kp and Ti)
From factory, the analog input function is tailored to a generic heating
system with a predened pipe length and sensor position in the system.
We recommend to use the wizard under “Assist setup, analog input”
if these predened settings are not applicable.
These functions are designed for
the connection of an external
sensor feedback.
3
5
SETTINGS

Min.
Max.
2 V 10 V
H
T [°C]
30%
20 50 80
100%
Hactual
T
actual
H
Q
4
Setpoint inuence
External setpoint function Temperature inuence
The external setpoint function allows the
pump to be controlled by means of an
external analog input signal.
External inuence changes the resulting
setpoint in the given control mode.
Please note that AUTOADAPT and
FLOWADAPT are not controlled by
manual setpoints and therefore
cannot be inuenced by an
external signal.
The commonly used control mode
for external setpoint function
is constant curve.
The setpoint inuence is able to adjust the resulting setpoint in a given
control mode based on either a signal feedback (ext. setpoint function)
or the internal temperature measurement (temp. inuence).
Temperature inuence is chosen for
systems where correlation between the
media temperature and the pressure
setpoint of the pump is desired.
The temperature inuence is linear
and can be chosen as either T=50C
or T=80C at 100% setpoint.
This function can be enabled in
proportional pressure, constant
pressure and constant curve.
The resulting setpoint will be
adjusted according to the
liquid temperature.
The pump must be installed
in the ow pipe. The temperature
inuence function cannot be used
in air-conditioning and cooling
systems.
In the above example,
Tmax. = 80 °C has been
selected. The actual
liquid temperature
Tactual (60 °C) causes
the setpoint for head
to be reduced from
100% to Hactual.
4
SETTINGS

ASSIST
5
=
=
=
24 h
24 h 24 h
=
=
=
=
24 h
24 h 24 h
=
One pump is operating continuously.
The backup pump is operated at
intervals to prevent seizing up.
If the duty pump stops due to
a fault, the backup pump
will start automatically.
Connect and congure
on the master pump.
* If monitoring of the slave pump is desired,
a CIM must be mounted on the slave too.
Congure on both
master and slave pump.
Check display to identify the master
pump in multi-pump systems.
Check name plate to identify the
master pump on a twin pump.
All pumps in operation will run at equal speed
and will cut in/out depending on system load.
The Cascade function can be used in control
modes: constant curve and contant pressure.
Pumps will run as
single pumps.
Only one pump is operating at a time.
The change from one pump to the other
depends on time or energy. If a pump fails,
the other pump will take over automatically.
Multi-pump function
Where to connect Input/output
How to identify the master pump
Alternating
operation
Back-up
operation
Cascade
operation
No
multi-pump
function
Analog input
Digital input
Fieldbus
module(CIM)*
Relay
=
=
=
=
Multi-pump setup
Multi-pump systems
Twin pump
Master
Master
Master
Master
Slave
5
Setpoint
5.00 bar
Operaring mode
Normal
Actual controlled value
4.90 bar
Control mode
Const. pressure
Status Settings Assist
Home
XXXXXXXXXXXXXXXXXXXXXXXX
P/N: XXXXXXXX
S/N: XXXXXXXX
PC: XXXX
Model: X
IPXXX TFXXX
GrundfosHolding A/S, DK - 8850 Bjerringbro, Denmark
EEI ≤ X.XX Part X
Madein Germany
Min.
Max.
X.XX
X.X
XXXX
XXXXX.XX
I1[A] P1[W] MPa
=
=
=
24 h
24 h 24 h
=

When operating in multi-pump mode, the operating mode,
control mode and setpoint is active on a system level,
meaning common for both pumps.
When changing settings or reading out multi-pump
parameters, it is only necessary to do this on
one of the pumps.
Grundfos eye and the relays are local and
show the status of the specic pump
(e.g. running, stopped, warning).
The heat energy parameters (ow, volume, heat energy)
are accumulated on system level. Both pumps will
display the same values.
If using the heat energy monitor, the temperature
sensor should only be installed on the master pump.
In applications where the twin pump is autonomously
controlled by a 3rd party controller, it is recommended
to dissolve the factory enabled multi-pump system.
When disabling the internal multi-pump control, it is
necessary to connect input/outputs to both pump
heads.
The pump from which the multi-pump system is formed,
will automatically be the master.
On twin-pumps, where multi-pump is factory enabled, see chapter
”how to identify the master pump ”under” multi-pump setup”.
For changing the master pump, the multi-pump system can be
dissolved and reinitialized from the chosen pump.
Heat energy monitor
Autonomous twin pump control
Selection of master pump
Multi-pump function
Operation
5

Warning 88 – Internal sensor fault
• The pump will continue operation with a yellow light
indicating the warning.
• The internal sensor is either blocked due to impurities in
the media, or the communication from the sensor is faulty.
• Make sure the sensor and the measuring channels
in the pump house are not blocked.
• Replace the sensor if the error persists or disable the alarm
under the settings menu if the reading is not needed and the
product is running in open loop control (Constant curve).
Warning 77 – Multi-pump communication
• Both pumps in the multi-pump system will continue
to operate according to their local settings.
• The error is caused by the two pumps losing
their radio connection.
• The pumps will search for each other and pair
automatically again after reestablishing the connection.
• Make sure both pumps are supplied with power. If the
multi-pump system is not desired, dissolve it under
the “assist” menu.
Alarm 72 – Internal fault
• The pump will stop and display a red light, but automatically try to restart.
• There might be turbine ow in the application, forcing a ow through the pump.
• Irregularities in the voltage supply can also cause this alarm.
• Check the application and take necessary measures to avoid turbine ow.
• If the alarm persists, contact Grundfos Service.
Alarm 51 – Blocked pump
• The pump will stop, but automatically try to restart.
• Make sure the rotor is not physically blocked
(e.g. after being turned o for extended periods of time).
• If the error persists, contact Grundfos Service.
Alarm 57 – Dry run
• The pump will stop with a red light.
• The pump has detected that there is no media in the system.
• Another reason for this error can be that the sensor is blocked and
therefore is measuring an incorrect pressure. See also warning 88.
• This alarm can be disabled/enabled under the settings menu.
It is default disabled on model B/C pumps.
Alarm 10 – Internal fault
• This error can occur if dierent print circuit boards in the pump
have lost connection to each other.
• Please contact Grundfos Service.
6
Alarms and warnings
6

HOME
Auf dem Home-Bildschirm sind die wich-
tigsten Einstellungen (als Verknüpfungen)
und Zustandsparameter voreingestellt.
Diese Anzeige kann unter „Allgemeine
Einstellungen“ angepasst werden.
STATUS EINSTELLUNGEN ASSISTENT
Betriebsstatus
»Betriebsart, von
»Regelungsart
Pumpenleistung
»MAX-Kennlinie und Betriebspunkt
»Resultierender Sollwert
»Medientemperatur
»Drehzahl
»Betriebsstunden
Leistungsaufnahme und Energieverbrauch
»Leistungsaufnahme
»Energieverbrauch
Warnungen und Alarme
Überwachung der Wärmeenergie
Betriebsprotokoll
»Betriebsstunden
»Trenddaten
Eingebaute Module
Datum und Uhrzeit
Identizieren der Pumpe
Mehrpumpenanlage
»Betriebsstatus
»Systemleistung
»Leistungsaufnahme und Energieverbrauch
»Andere Pumpe 1, Mehrpumpenanlage
Sollwert
Betriebsart
»Normal
»Stopp
»Min.
»Max.
Regelungsart
»AUTOADAPT
»FLOWADAPT
»Proportionaldruck
»Konstantdruck
»Konstanttemperatur
»Dierenztemperatur
»Konstantkennlinie
Reglereinstellungen
FLOWLIMIT
Automatische Nachtabsenkung
Analogeingang
Relaisausgänge
»Relaisausgang 1
»Relaisausgang 2
Sollwertverschiebung
»Externe Sollwertfunktion
»Temperaturführung
Buskommunikation
»Pumpennummer
»Vor-Ort-Betrieb
Allgemeine Einstellungen
»Einstellungen aktivieren/deaktivieren
»Einstellungen für Alarme und Warnungen
»Trockenlauf (57)
»Interne Sensorstörung (88)
»Interne Störung (157)
»Verlauf löschen
»Home-Anzeige bearbeiten
»Displayhelligkeit
»Auf Werkseinstellungen zurücksetzen
»Inbetriebnahmeassistent starten
»Diese Übersicht umfasst
nur betriebsrelevante
Untermenüs.
1
3
5
2
4
1
5
6
2
4
3
Wizard
*
*
Alarme und Warnungen 6
Geführtes Einrichten der Pumpe
»Einstellen der Pumpe
Einstellen von Datum und Uhrzeit
Mehrpumpenkonguration
Einrichtung, Analogeingang
Beschreibung, Regelungsart
»AUTOADAPT
»FLOWADAPT
»Proportionaldruck
»Konstantdruck
»Konstanttemperatur
»Dierenztemperatur
»Konstantkennlinie
Geführte Störungssuche
»Pumpe blockiert
»Kommunikationsfehler der Pumpe
»Interne Störung
»Interne Sensorstörung
»Trockenlauf
»Zwangsförderung
»Unterspannung
Ȇberspannung
»Motortemperatur hoch
»Externe Sensorstörung
»Medientemperatur hoch
»Gemeinsame Störung, Doppelpumpe