Grundfos MGE Series User manual

MGE motors
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

English (GB)
2
English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
Page
1. Symbols used in this document 3
2. Abbreviations and definitions 3
3. General description 4
3.1 Radio communication 4
3.2 Battery 4
4. Identification 5
4.1 Nameplate 5
4.2 Type key 6
5. Receiving the product 7
5.1 Transporting the product 7
5.2 Inspecting the product 7
6. Mechanical installation 7
6.1 Handling the product 7
6.2 Mounting 7
6.3 Cable entries 7
6.4 Ensuring motor cooling 7
6.5 Outdoor installation 8
6.6 Drain holes 8
7. Electrical installation 8
7.1 Protection against electric shock,
indirect contact 8
7.2 Cable requirements 9
7.3 Mains supply 9
7.4 Additional protection 10
7.5 Functional modules 11
7.6 Connection terminals on functional
modules 11
7.7 Signal cables 16
7.8 Bus connection cable 16
8. Operating conditions 17
8.1 Maximum number of starts and stops 17
8.2 Ambient temperature 17
8.3 Installation altitude 17
8.4 Humidity 17
8.5 Motor cooling 17
9. User interfaces 18
9.1 Basic control panel 18
9.2 Standard control panel 19
9.3 Advanced control panel 21
9.4 Grundfos GO 26
9.5 R100 remote control 30
10. Description of functions 32
10.1 ""Setpoint"" 32
10.2 ""Operating mode"" 32
10.3 ""Set manual speed"" 32
10.4 "Control mode" 32
10.5 ""Analog inputs"" 32
10.6 ""Pt100/1000 inputs"" 33
10.7 "Digital inputs" 34
10.8 ""Digital inputs/outputs"" 35
10.9 "Signal relay" (""Relay outputs"") 36
10.10 ""Analog output"" 36
10.11 "Controller" (""Controller settings"") 37
10.12 ""Operating range"" 37
10.13 ""External setpoint function"" 37
10.14 "Predefined setpoints" 40
10.15 ""Limit-exceeded function"" 41
10.16 "Ramps" 42
10.17 "Direction of rotation" 42
10.18 "Skip band" 42
10.19 ""Standstill heating"" 42
10.20 ""Motor bearing monitoring"" 42
10.21 "Service" 43
10.22 "Number" (""Pump number"") 43
10.23 "Radio communication"
(""Enable/disable radio comm."") 43
10.24 ""Language"" 43
10.25 "Date and time" (""Set date and time"") 43
10.26 "Unit configuration" (""Units"") 43
10.27 "Buttons on product" (""Enable/disable
settings"") 43
10.28 ""Delete history"" 44
10.29 ""Define Home display"" 44
10.30 ""Display settings"" 44
10.31 "Store settings" (""Store actual
settings"") 44
10.32 "Recall settings" (""Recall stored
settings"") 44
10.33 "Pump name" (motor name) 44
10.34 "Connection code" 44
10.35 ""Run start-up guide"" 45
10.36 ""Alarm log"" 45
10.37 ""Warning log"" 45
10.38 ""Assist"" 45
10.39 ""Assisted pump setup"" (Assisted motor
setup) 45
10.40 ""Setup, analog input"" 46
10.41 ""Setting of date and time"" 46
10.42 ""Setup of multi-pump system""
(Multimotor) 46
10.43 ""Description of control mode"" 49
10.44 ""Assisted fault advice"" 49
11. Bus signal 49
12. Priority of settings 50
13. Grundfos Eye 51
14. Installing a communication interface
module 52
15. Identification of functional module 54
16. Identification of control panel 54
17. Changing the position of the control
panel 55
18. Servicing the product 56
19. Cleaning the product 56
20. Signal relays 57
21. Megging 58

English (GB)
3
1. Symbols used in this document
2. Abbreviations and definitions
22. Technical data, single-phase motors 58
22.1 Supply voltage 58
22.2 Leakage current 58
23. Technical data, three-phase motors 58
23.1 Supply voltage 58
23.2 Leakage current (AC) 58
24. Inputs and outputs 59
25. Other technical data 60
25.1 Sound pressure level 61
26. Disposing of the product 61
Prior to installation, read this document.
Installation and operation must comply
with local regulations and accepted codes
of good practice.
DANGER
Indicates a hazardous situation which, if
not avoided, will result in death or serious
personal injury.
WARNING
Indicates a hazardous situation which, if
not avoided, could result in death or
serious personal injury.
CAUTION
Indicates a hazardous situation which, if
not avoided, could result in minor or
moderate personal injury.
Notes or instructions that make the work
easier and ensure safe operation.
If these instructions are not observed, it
may result in malfunction or damage to the
equipment.
A blue or grey circle with a white graphical
symbol indicates that an action must be
taken.
A red or grey circle with a diagonal bar,
possibly with a black graphical symbol,
indicates that an action must not be taken
or must be stopped.
AI Analog input.
AL Alarm, out of range at lower limit.
AO Analog output.
AU Alarm, out of range at upper limit.
CIM Communication interface module.
Current
sinking
The ability to draw current into the
terminal and guide it towards earth
in the internal circuitry.
Current
sourcing
The ability to push current out of
the terminal and into an external
load which must return it to earth.
DI Digital input.
DO Digital output.
ELCB Earth leakage circuit breaker.
FM Functional module.
GDS
Grundfos Digital Sensor.
Factory-fitted sensor in some
Grundfos pumps.
GENIbus Proprietary Grundfos fieldbus
standard.
GFCI Ground fault circuit interrupter.
GND Ground
Grundfos Eye Status indicator light.
LIVE
Low voltage with the risk of
electric shock if the terminals are
touched.
OC
Open collector:
Configurable open-collector
output.
PE Protective earth.
PELV
Protective extra-low voltage.
A voltage that cannot exceed ELV
under normal conditions and
under single-fault conditions,
except earth faults in other
circuits.
RCD Residual-current device
SELV
Safety extra-low voltage.
A voltage that cannot exceed ELV
under normal conditions and
under single-fault conditions,
including earth faults in other
circuits.

English (GB)
4
3. General description
Grundfos MGE 71-160 are frequency-controlled
permanent-magnet motors for single-phase or
three-phase mains connection. The motors
incorporate a PI controller.
You can connect the motors to a signal from an
external sensor and a setpoint signal enabling
control in closed loop. You can also use the motors
for an open-loop system in which the setpoint signal
is used as a speed control signal.
The motors are intended for machines with a square
torque characteristic, such as ventilators and
centrifugal pumps.
The motors incorporate a control panel which is
available in various versions. See section 9. User
interfaces.
Detailed motor settings are made with the wireless
Grundfos R100 remote control or Grundfos GO.
Furthermore, you can read important operating
parameters via R100 or Grundfos GO.
The motors incorporate a functional module. The
functional module is available in various versions
with different inputs and outputs. See section
7.5 Functional modules.
You can fit the motors with a Grundfos CIM module.
A CIM module is an add-on communication interface
module. The CIM module enables data transmission
between the motor and an external system, for
example a BMS or SCADA system. The CIM module
communicates via fieldbus protocols.
You can connect several MGE motors together via
radio or bus communication to create a multimotor
system.
3.1 Radio communication
This product incorporates a radio module for remote
control which is a class 1 device and which you can
use anywhere in the EU without restrictions.
For use in USA and Canada, see Installation in the
USA and Canada on page 62.
Some variants of the product and products sold in
China and Korea have no radio module.
This product can communicate with Grundfos GO
and other MGE motors of the same type via the
built-in radio module.
3.2 Battery
A Li-ion battery is fitted in the FM 300 functional
module.
The Li-ion battery complies with the Battery Directive
(2006/66/EC). The battery does not contain mercury,
lead and cadmium.

English (GB)
5
4. Identification
You can identify the motor by means of the
nameplate on the terminal box.
4.1 Nameplate
The motor nameplate is located on the side of the
terminal box. See fig. 1, pos. A.
Fig. 1 Nameplate location
Figure 2shows the nameplate. The position
numbers refer to the table below.
Fig. 2 Nameplate, MGE motors
TM06 4924 3115
Env.Type:
Serialno :
SF CL:
PF:
PB
FM
HMIEff
nmax:
CIMWgt:
DE :
kg
NDE:Tamb :
:FAA
V
~
P.C. :
Madein Hung ary
OUTPUT VARIANT INPUT
TEFC
Type:
P.N. :Uin :
I1/1:
fin
Hp
Hz
P2
ISF Amp:
rpm
:::
:
:
:
:
Xxxxxxxxxxx
E.P.Motor
DK-8850 Bjerringbro, Denmark
A
TM06 5553 4915
Env.Type : IP:
CL:
PF
PB
FM
HMIEff
n max:
CIM
Wgt :
DE :
kg
NDE :
T
amb
:
:
CA
V
~
P.C. :
Made in Hungary
OUTPUT VARIANT INPUT
Type :
P.N. :U in :
I
1/1 :
fin
kW
Hz
P2
rpm
:::
:
:
:
:
o
12
23
3456
2627 25 24 22 21
7 8 9 10
14 13
11 12
151617181920
DK - 8850 Bjerringbro, Denmark
- V
Pos. Description Pos. Description
1 Type designation 15 Country of origin
2 Product number 16 Human Machine Interface type
3 Drive-end bearing 17 CIM module type
4 Version number 18 Motor efficiency
5 Environmental type 19 Maximum motor speed [min-1]
6 Production code (year and week) 20 Maximum input current [A]
7 Supply voltage [V] 21 Mains frequency [Hz]
8 Rated power output [kW] 22 Enclosure class according to IEC
60034-5
9 Power board 23 Insulation class according to IEC 62114
10 Functional module type 24 Maximum ambient temperature [°C]
11 CE mark and approvals 25 Power factor
12 Part number of nameplate 26 Weight [kg]
13 Grundfos logo 27 Non-drive-end bearing
14 Grundfos company address

English (GB)
6
4.2 Type key
1) Frame size 71, 80, 90
2) Frame size 100, 112, 132, 160
Code Example MG E 71 M A 2- FT 85 -H A
[ ]
B
K
Type of motor unit
Complete motor with terminal box
Basic motor unit without terminal box
Kit for basic motor unit without terminal box
MG Motor Grundfos
E Electronic control
71
80
90
100
112
132
160
Frame size according to IEC (centre line height of motor shaft in mm,
foot-mounted motor)
[ ]
S
M
L
Size of foot
Not defined for frame sizes 71 and 80
Small
Medium
Large
Maximum motor power, P2 [kW]
Length of
stator core
1450-2000
min-1 1450-2200
min-1 2900-4000 min-1 4000-5900 min-1
A1) 30 0.37 - 0.75 1.1
B1) 45 0.55 - 1.1 1.5
C1) 60 0.75 - 1.5 2.2
D1) 85 1.1 - 2.2 -
A2) 70 - - 3.0 3.0
B2) 80 - 2.2 - -
C2) 95 - - 4.0 4.0 / 4.6
D2) 100 1.51) 3.0 - -
E2) 125 - 4.0 5.5 5.5 / 6.0
F2) 70 - - 7.5 7.5
G2) 80 - 5.5 - -
H2) 105 - 7.5 11.0 11.0
1
2
4
Maximum speed
5900 min-1
4000 min-1
2000/2200 min-1
[ ]
FT
FF
Flange version
Foot-mounted (B3)
Tapped-hole flange
Free-hole flange
[ ]
Pitch circle diameter [mm], flange version
B3
H
I
J
Model designation
Single-phase motor
Three-phase motors up to 2.2 KW
Three-phase motors from 1.5 to 11 kW
A
Version designation
First version

English (GB)
7
5. Receiving the product
5.1 Transporting the product
• Motors from 2.2 to 5.5 kW: Do not stack more
than two motors in their original packaging.
• Motors from 5.5 to 11 kW: Do not stack the
motors.
5.2 Inspecting the product
Before you install the product, do the following.
1. Check that the product is as ordered.
2. Check that no visible parts have been damaged.
3. If parts are damaged or missing, contact your
local Grundfos sales company.
6. Mechanical installation
6.1 Handling the product
Observe local regulations setting limits for manual
lifting or handling. The motor weight is stated on the
nameplate.
6.2 Mounting
6.3 Cable entries
The cable entries are fitted with blanking plugs from
factory. You can order various cable glands from
Grundfos as accessory kits.
See the size of the cable entries in section 25. Other
technical data.
6.4 Ensuring motor cooling
Leave at least 50 mm between the end of the fan
cover and a wall or other fixed objects. See fig. 3.
Fig. 3 Minimum distance [mm]
WARNING
Falling objects
Death or serious personal injury
- Secure the product during
transportation to prevent it from tilting or
falling down.
CAUTION
Crushing of feet
Minor or moderate personal injury
- Wear safety shoes when moving the
product.
CAUTION
Back injury
Minor or moderate personal injury
- Use lifting equipment.
CAUTION
Crushing of feet
Minor or moderate personal injury
- Wear safety shoes and attach lifting
equipment to the motor eyebolts when
handling the product.
Do not lift the product by the terminal box.
CAUTION
Crushing of feet
Minor or moderate personal injury
- Secure the product to a solid foundation
by bolts through the holes in the flange
or the base plate.
In order to maintain the UL mark,
additional requirements apply to the
equipment. See Installation in the USA
and Canada on page 62.
TM06 4925 3115
D
50

English (GB)
8
6.5 Outdoor installation
If you install the motor outdoors, provide the motor
with a suitable cover and open the drain holes to
avoid condensation on the electronic components.
See figures 4and 5.
The cover must be sufficiently large to ensure that
the motor is not exposed to direct sunlight, rain or
snow. Grundfos does not supply covers. We
therefore recommend that you have a cover built for
the specific application. In areas with high humidity,
we recommend that you connect the motor
permanently to the mains supply and activate the
built-in standstill heating function. See section
10.19 ""Standstill heating"".
Fig. 4 Examples of covers (not supplied by
Grundfos)
6.6 Drain holes
If you install the motor in moist surroundings or areas
with high humidity, the bottom drain hole must be
open. The enclosure class of the motor will then be
lower. This helps prevent condensation in the motor
as the motor becomes self-venting, and it allows
water and humid air to escape.
The motor has a plugged drain hole on the drive
side. You can turn the flange 90 ° to both sides or
180 °.
Fig. 5 Drain holes
7. Electrical installation
If the power supply cable is damaged, it must be
replaced by the manufacturer, the manufacturer's
service partner or a similarly qualified person.
The user or the installer is responsible for the
installation of correct earthing and protection
according to local regulations. All operations must be
carried out by a qualified electrician.
7.1 Protection against electric shock,
indirect contact
Protective-earth conductors must always have a
yellow and green (PE) or yellow, green and blue
(PEN) colour marking.
7.1.1 Protection against mains voltage transients
The motor is protected against mains voltage
transients in accordance with EN 61800-3.
7.1.2 Motor protection
The motor requires no external motor protection. The
motor incorporates thermal protection against slow
overloading and blocking.
7.1.3 External switch
We recommend that you connect the motor to an
external switch.
Connect the switch via the terminals 2 (DI1) and 6
(GND). See fig. 10 (FM 100), fig. 11 (FM 200) or fig.
12 (FM 300).
Enable the ""External stop"" function. See section
10.7 "Digital inputs".
When fitting a cover to the motor, observe
the guideline in section 6.4 Ensuring motor
cooling.
TM05 3496 3512TM02 9037 1604
B3 B14 B5
DANGER
Electric shock
- Death or serious personal injury
- Switch off the power supply to the motor
and to the signal relays. Wait at least 5
minutes before you make any
connections in the terminal box. Make
sure that the power supply cannot be
accidentally switched on.
DANGER
Electric shock
- Death or serious personal injury
- Check that the supply voltage and
frequency correspond to the values
stated on the nameplate.
WARNING
Electric shock
- Death or serious personal injury
- Connect the motor to protective earth
and provide protection against indirect
contact in accordance with local
regulations.

English (GB)
9
7.2 Cable requirements
7.2.1 Cable cross-section
Single-phase supply
Three-phase supply
7.2.2 Conductors
Type
Stranded or solid copper conductors.
Temperature rating
Temperature rating for conductor insulation: 60 °C
(140 °F).
Temperature rating for outer cable sheath: 75 °C
(167 °F).
7.3 Mains supply
7.3.1 Single-phase supply voltage
Single-phase motors are available for the voltages
below:
• 1 x 200-240 V - 10 %/+ 10 %, 50/60 Hz, PE
• 1 x 90-240 V - 10 %/+ 10 %, 50/60 Hz, PE or
30-300 VDC (power supply from a
renewable-energy source).
Check that the supply voltage and frequency
correspond to the values stated on the nameplate.
The wires in the motor terminal box must be as short
as possible. Excepted from this is the separated
earth conductor which must be so long that it is the
last one to be disconnected in case the cable is
inadvertently pulled out of the cable entry.
For maximum backup fuse, see section 22.1 Supply
voltage.
Fig. 6 Example of a mains-connected motor
with mains switch, backup fuse and
additional protection
Fig. 7 Mains connection, single-phase motors
DANGER
Electric shock
- Death or serious personal injury
- Always comply with local regulations as
to cable cross-sections.
Conductor
type
Conductor
material
Cross section
[mm2][AWG]
Solid Copper 0.5 - 2.5 28-12
Stranded 0.5 - 2.5 30-12
Conductor
type
Conductor
material
Cross section
[mm2][AWG]
Solid Copper 0.5 - 10 18-8
Stranded 0.5 - 10 18-8
DANGER
Electric shock
- Death or serious personal injury
- Use the recommended fuse size. See
section 22.1 Supply voltage.
If you want to supply the motor through an
IT network, make sure that you have a
suitable motor variant. If you are in doubt,
contact Grundfos.
MGE 71, 80, 90
TM05 4034 1912
MGE 71, 80, 90
TM05 3494 1512
RCD,
type B

English (GB)
10
7.3.2 Three-phase supply voltage
• 3 x 380-500 V - 10 %/+ 10 %, 50/60 Hz, PE.
Check that the supply voltage and frequency
correspond to the values stated on the nameplate.
The wires in the motor terminal box must be as short
as possible. Excepted from this is the separated
earth conductor which must be so long that it is the
last one to be disconnected in case the cable is
inadvertently pulled out of the cable entry.
In order to avoid loose connections, ensure that the
terminal block for L1, L2 and L3 is pressed home in
its socket when the supply cable has been
connected.
For maximum backup fuse, see section 23.1 Supply
voltage.
Fig. 8 Example of a mains-connected
three-phase motor with mains switch,
backup fuses and additional protection
Fig. 9 Mains connection, three-phase motors
7.4 Additional protection
The residual-current circuit breaker must be marked
with the following symbol:
The total leakage current of all the electrical
equipment in the installation must be taken into
account. You find the leakage current of the motor in
section 23.2 Leakage current (AC).
This product can cause a direct current in the
protective earth conductor.
Overvoltage and undervoltage protection
Overvoltage and undervoltage may occur in case of
unstable power supply or a faulty installation. The
motor is stopped if the voltage falls outside the
permissible voltage range. The motor restarts
automatically when the voltage is again within the
permissible voltage range. Therefore, no additional
protection relay is required.
If you want to supply the motor through an
IT network, make sure that you have a
suitable motor variant. If you are in doubt,
contact Grundfos.
Corner earthing is not allowed for supply
voltages above 3 x 480 V, 50/60 Hz.
MGE 71, 80, 90, 100, 112, 132, 160
TM05 3942 1812
MGE 71, 80, 90, 100, 112, 132, 160
TM05 3495 1512
L1
L2
L3
L2
L1
L3
PE
RCD,
type B
DANGER
Electric shock
- Death or serious personal injury
- Only use residual-current circuit
breakers (ELCB, GFCI, RCD) of type B.
The motor is protected against transients
from the power supply according to EN
61800-3. In areas with high lightning
intensity, we recommend external lightning
protection.

English (GB)
11
Overload protection
If the upper load limit is exceeded, the motor
automatically compensates for this by reducing the
speed and stops if the overload condition persists.
The motor remains stopped for a set period. After
this period, the motor automatically attempts to
restart. The overload protection prevents damage to
the motor. Consequently, no additional motor
protection is required.
Overtemperature protection
The electronic unit has a built-in temperature sensor
as an additional protection. When the temperature
rises above a certain level, the motor automatically
compensates for this by reducing the speed and
stops if the temperature keeps rising. The motor
remains stopped for a set period. After this period,
the motor automatically attempts to restart.
Protection against phase unbalance
Connect three-phase motors to a power supply with
a quality corresponding to IEC 60146-1-1, class C, to
ensure correct motor operation at phase unbalance.
This also ensures long life of the components.
7.5 Functional modules
Various functional modules are available:
• basic functional module, FM 100
• standard functional module, FM 200
• advanced functional module, FM 300.
The selection of module depends on the application
and the required number of inputs and outputs.
7.6 Connection terminals on functional
modules
The descriptions and terminal overviews in this
section apply to both single- and three-phase
motors.
For maximum tightening torques, see section
Torques, page 60.
7.6.1 Basic functional module, FM 100
The module has only the most necessary inputs for
closed- and open-loop operation. The module also
enables communication via a GENIbus connection.
The module has these connections:
• analog voltage input
• two digital inputs or one digital input and one
open-collector output
• GENIbus connection.
See fig. 10.
• Inputs and output
The inputs and output are internally separated from
the mains-conducting parts by reinforced insulation
and galvanically separated from other circuits. All
control terminals are supplied by protective extra-low
voltage (PELV), thus ensuring protection against
electric shock.
• Mains supply (terminals N, PE, L or L1, L2, L3,
PE).
Digital input 1 is factory-set to be start/stop
input where open circuit results in stop. A
jumper has been factory-fitted between
terminals 2 and 6. Remove the jumper if
digital input 1 is to be used as external
start/stop or any other external function.
DANGER
Electric shock
- Death or serious personal injury
- Make sure that the wires to be
connected to the connection groups
below are separated from each other by
reinforced insulation in their entire
lengths.

English (GB)
12
* If you use an external supply source, there must
be a connection to earth.
Fig. 10 Connection terminals, FM 100
7.6.2 Standard functional module, FM 200
The module has more inputs and outputs than FM
100 and is suitable for even more demanding
applications.
The module has these connections:
• two analog inputs
• two digital inputs or one digital input and one
open-collector output
• Grundfos Digital Sensor input and output
• two signal relay outputs
• GENIbus connection.
See fig. 11.
• Inputs and outputs
All inputs and outputs are internally separated from
the mains-conducting parts by reinforced insulation
and galvanically separated from other circuits. All
control terminals are supplied by protective extra-low
voltage (PELV), thus ensuring protection against
electric shock.
• Signal relay outputs
– Signal relay 1:
LIVE:
You can connect supply voltages up to 250
VAC to the output.
PELV:
The output is galvanically separated from
other circuits. Therefore, you can connect the
supply voltage or protective extra-low voltage
to the output as desired.
– Signal relay 2:
PELV:
The output is galvanically separated from
other circuits. Therefore, you can connect the
supply voltage or protective extra-low voltage
to the output as desired.
• Mains supply (terminals N, PE, L or L1, L2, L3,
PE).
TM05 3511 1512
Terminal Type Function
10 DI3/OC1
Digital input/output,
configurable.
Open collector: Maximum
24 V resistive or
inductive.
4AI1
Analog input:
0.5 - 3.5 V / 0-5 V / 0-10
V
2 DI1 Digital input, configurable
5+5V Supply to potentiometer
and sensor
6GND Earth
A GENIbus, A GENIbus, A (+)
Y GENIbus, Y GENIbus, GND
B GENIbus, B GENIbus, B (-)
B
Y
6
5
2
4
10
A
GENIbus A
GENIbus B
GENIbus Y
GND
+5 V
DI1
AI1
DI3/OC1
+24 V* OC DI
GND
++
+24 V*/5 V*
Digital input 1 is factory-set to be start/stop
input where open circuit results in stop. A
jumper has been factory-fitted between
terminals 2 and 6. Remove the jumper if
digital input 1 is to be used as external
start/stop or any other external function.
DANGER
Electric shock
- Death or serious personal injury
- Make sure that the wires to be
connected to the connection groups
below are separated from each other by
reinforced insulation in their entire
lengths.

English (GB)
13
* If you use an external supply source, there must
be a connection to earth.
Fig. 11 Connection terminals, FM 200
TM05 3510 3512
3
15
8
26
23
25
24
7
B
Y
6
5
2
4
10
A
AI2
GDS RX
GDS TX
GND
GENIbus A
GENIbus B
+5 V
+24 V
+24 V
GND
GENIbus Y
GND
+5 V
DI1
AI1
DI3/OC1
+24 V*
+
+
+24 V*/5 V*
+24 V*
+5 V*
NC
C2
NO
NC
C1
NO
+24 V*
++
+24 V*/5 V*
+24 V*
+24 V* OC DI
GND
Terminal Type Function
NC Normally
closed contact
Signal relay 1 (LIVE or
PELV)
C1 Common
NO Normally
open contact
NC Normally
closed contact
Signal relay 2 (PELV
only)
C2 Common
NO Normally
open contact
10 DI3/OC1
Digital input/output,
configurable.
Open collector:
Maximum 24 V
resistive or inductive.
4AI1
Analog input:
0-20 mA / 4-20 mA
0.5 - 3.5 V / 0-5 V /
0-10 V
2DI1 Digital input,
configurable
5+5V
Supply to
potentiometer and
sensor
6GND Earth
A GENIbus, A GENIbus, A (+)
Y GENIbus, Y GENIbus, GND
B GENIbus, B GENIbus, B (-)
3GND Earth
15 +24 V Supply
8 +24 V Supply
26 +5 V
Supply to
potentiometer and
sensor
23 GND Earth
25 GDS TX Grundfos Digital
Sensor output
24 GDS RX Grundfos Digital
Sensor input
7AI2
Analog input:
0-20 mA / 4-20 mA
0.5 - 3.5 V / 0-5 V /
0-10 V

English (GB)
14
7.6.3 Advanced functional module, FM 300
The module has a number of inputs and outputs
enabling the motor to be used in advanced
applications where many inputs and outputs are
required.
The module has these connections:
• three analog inputs
• one analog output
• two dedicated digital inputs
• two configurable digital inputs or open-collector
outputs
• Grundfos Digital Sensor input and output
• two Pt100/1000 inputs
• LiqTec sensor inputs
• two signal relay outputs
• GENIbus connection.
See fig. 12.
• Inputs and outputs
All inputs and outputs are internally separated from
the mains-conducting parts by reinforced insulation
and galvanically separated from other circuits. All
control terminals are supplied by protective extra-low
voltage (PELV), thus ensuring protection against
electric shock.
• Signal relay outputs
– Signal relay 1:
LIVE:
You can connect supply voltages up to 250
VAC to the output.
PELV:
The output is galvanically separated from
other circuits. Therefore, you can connect the
supply voltage or protective extra-low voltage
to the output as desired.
– Signal relay 2:
PELV:
The output is galvanically separated from
other circuits. Therefore, you can connect the
supply voltage or protective extra-low voltage
to the output as desired.
• Mains supply (terminals N, PE, L or L1, L2, L3,
PE).
* If you use an external supply source, there must
be a connection to GND.
Fig. 12 Connection terminals, FM 300
Digital input 1 is factory-set to be start/stop
input where open circuit results in stop. A
jumper has been factory-fitted between
terminals 2 and 6. Remove the jumper if
digital input 1 is to be used as external
start/stop or any other external function.
DANGER
Electric shock
- Death or serious personal injury
- Make sure that the wires to be
connected to the connection groups
below are separated from each other by
reinforced insulation in their entire
lengths.
TM05 3509 3512
3
15
8
26
23
25
24
7
21
20
22
B
Y
6
5
2
4
10
A
+24 V*
1
14
9
12
17
19
11
18
+24 V*
+
+24 V* OC DI
+24 V*/5 V*
+24 V*
+
++
+24 V*/5 V*
+24 V*
+24 V*
+
+
+24 V*/5 V*
+24 V*
+5 V*
AI2
GDS RX
GDS TX
GND
GENIbus A
GENIbus B
+5 V
+24 V
+24 V
GND
GENIbus Y
GND
+5 V
DI1
AI1
DI3/OC1
LiqTec
AI3
GND
DI2
LiqTec
GND
AO
Pt100/1000
Pt100/1000
DI4/OC2
GND
+24 V* OC DI
GND
NC
C2
NO
NC
C1
NO
+5 V*

English (GB)
15
Terminal Type Function
NC Normally closed
contact
Signal relay 1
(LIVE or PELV)
C1 Common
NO Normally open
contact
NC Normally closed
contact
Signal relay 2
(PELV only)
C2 Common
NO Normally open
contact
18 GND Earth
11 DI4/OC2
Digital input/output,
configurable.
Open collector:
Maximum 24 V
resistive or
inductive.
19 Pt100/1000
input 2
Pt100/1000 sensor
input
17 Pt100/1000
input 1
Pt100/1000 sensor
input
12 AO
Analog output:
0-20 mA / 4-20 mA
0-10 V
9GND Earth
14 AI3
Analog input:
0-20 mA / 4-20 mA
0-10 V
1DI2 Digital input,
configurable
21 LiqTec sensor
input 1
LiqTec sensor input
(white conductor)
20 GND
Earth
(brown and black
conductors)
22 LiqTec sensor
input 2
LiqTec sensor input
(blue conductor)
10 DI3/OC1
Digital input/output,
configurable.
Open collector:
Maximum 24 V
resistive or
inductive.
4AI1
Analog input:
0-20 mA / 4-20 mA
0.5 - 3.5 V / 0-5 V /
0-10 V
2DI1 Digital input,
configurable
5+5V
Supply to
potentiometer and
sensor
6GND Earth
A GENIbus, A GENIbus, A (+)
Y GENIbus, Y GENIbus, GND
B GENIbus, B GENIbus, B (-)
3GND Earth
15 +24 V Supply
8 +24 V Supply
26 +5 V
Supply to
potentiometer and
sensor
23 GND Earth
25 GDS TX Grundfos Digital
Sensor output
24 GDS RX Grundfos Digital
Sensor input
7AI2
Analog input:
0-20 mA / 4-20 mA
0.5 - 3.5 V / 0-5 V /
0-10 V

English (GB)
16
7.7 Signal cables
Use screened cables with a cross-sectional area of
minimum 0.5 mm2and maximum 1.5 mm2for the
external on/off switch, digital inputs, setpoint and
sensor signals.
Connect the screens of the cables to the frame at
both ends with good connection. The screens must
be as close as possible to the terminals. See fig. 13.
Fig. 13 Stripped cable with screen and wire
connections
Always tighten screws for frame connections
whether a cable is fitted or not.
The wires in the motor terminal box must be as short
as possible.
7.8 Bus connection cable
7.8.1 New installations
For the bus connection, use a screened 3-core cable
with a cross-sectional area of minimum 0.5 mm2and
maximum 1.5 mm2.
If the motor is connected to a unit with a cable clamp
which is identical to the one on the motor, connect
the screen to this cable clamp.
If the unit has no cable clamp as shown in fig. 14,
leave the screen unconnected at this end.
Fig. 14 Connection with screened 3-core cable
7.8.2 Replacing a motor
If you use a a screened 2-core cable in the
installation, connect it as shown in fig. 15.
Fig. 15 Connection with screened 2-core cable
If you use a screened 3-core cable in the installation,
follow the instructions in section 7.8.1 New
installations.
TM02 1325 4402
TM05 3973 1812TM02 8842 0904
A
Y
B
A
Y
B
1
2
3
1
2
3
Motor
A
Y
B
A
Y
B
1
2
1
2
Motor

English (GB)
17
8. Operating conditions
8.1 Maximum number of starts and stops
The number of starts and stops via the power supply
must not exceed four times per hour.
When switched on via the power supply, the motor
starts after approximately 5 seconds.
If a higher number of starts and stops is desired, use
the input for external start/stop when
starting/stopping the motor.
When started via an external on/off switch, the motor
starts immediately.
8.2 Ambient temperature
8.2.1 Ambient temperature during storage and
transportation
Minimum: -30 °C
Maximum: 60 °C.
8.2.2 Ambient temperature during operation
Minimum: -20 °C
Maximum: 50 °C.
The motor can operate with the rated power output
(P2) at 50 °C, but continuous operation at higher
temperatures reduces the expected product life. If
the motor is to operate at ambient temperatures
between 50 and 60 °C, select an oversized motor.
Contact Grundfos for further information.
8.3 Installation altitude
Installation altitude is the height above sea level of
the installation site.
Motors installed up to 1000 metres above sea level
can be loaded 100 %.
Motors installed more than 1000 metres above sea
level must not be fully loaded due to the low density
and consequent low cooling effect of the air. See fig.
16.
Fig. 16 Derating of motor output power (P2) in
relation to altitude above sea level
8.4 Humidity
Maximum humidity: 95 %.
If the humidity is constantly high and above 85 %,
open the drain holes in the drive-end flange. See
section 6.6 Drain holes.
8.5 Motor cooling
To ensure cooling of motor and electronics, observe
the following:
• Position the motor in such a way that adequate
cooling is ensured. See section 6.4 Ensuring
motor cooling.
• The temperature of the cooling air must not
exceed 50 °C.
• Keep cooling fins and fan blades clean.
If the motor is installed above 2000 m, it
does not comply with the SELV/PELV
classification.
TM05 5243 3512
0
0
20
40
60
80
100
500 1000 1500 2000 2500
Altitude [m]
P2
[%]

English (GB)
18
9. User interfaces
You can make the motor settings by means of the
following user interfaces:
Control panels
• Basic control panel.
See section 9.1 Basic control panel.
• Standard control panel.
See section 9.2 Standard control panel.
• Advanced control panel.
See section 9.3 Advanced control panel
Remote controls
• Grundfos GO.
See section 9.4 Grundfos GO.
• Grundfos R100 remote control.
See section 9.5 R100 remote control.
If the power supply to the motor is switched off, the
motor settings are stored.
9.1 Basic control panel
Fig. 17 Basic control panel
9.1.1 Settings
Make all settings with Grundfos R100 or Grundfos
GO.
9.1.2 Resetting of alarms and warnings
You can reset a fault indication in one of the
following ways:
• Via the digital input if it has been set to "Alarm
resetting".
• Switch off the power supply until the indicator
lights are off.
• Switch the external start/stop input off and then
on again.
• With R100.
• With Grundfos GO.
WARNING
Hot surface
Death or serious personal injury
- Only touch the buttons on the display as
the product may be very hot.
WARNING
Electric shock
Death or serious personal injury
- If the control panel is cracked or
perforated, replace it immediately.
Contact the nearest Grundfos sales
company.
TM05 4847 2712
Pos. Symbol Description
1
Grundfos Eye
Shows the operating status of
the motor.
See section 13. Grundfos Eye.
2
Enables radio communication
with Grundfos GO and other
MGE motors of the same type.
1
2

English (GB)
19
9.2 Standard control panel
Fig. 18 Standard control panel
9.2.1 Setpoint setting
Set the desired setpoint of the motor by pressing
or . The green light fields on the control panel
indicate the setpoint set.
Motor in controlled-operation mode
The following example applies to a pump in an
application where a pressure sensor gives a
feedback to the pump. The sensor has been set
manually, and the pump does not automatically
register a connected sensor.
Figure 19 shows that the light fields 5 and 6 are
activated, indicating a desired setpoint of 3 bar with
a sensor measuring range from 0 to 6 bar. The
setting range is equal to the sensor measuring
range.
Fig. 19 Setpoint set to 3 bar, pressure-control
mode
Motor in uncontrolled-operation mode
In uncontrolled-operation mode, the motor output
lies between maximum and minimum speed. See fig.
20.
Fig. 20 Motor in uncontrolled-operation mode
TM05 4848 3512
Pos. Symbol Description
1
Grundfos Eye
Shows the operating status of
the motor.
See section 13. Grundfos Eye.
2-
Light fields for indication of
setpoint.
3Up and down. Changes the
setpoint.
4
Enables radio communication
with Grundfos GO and other
MGE motors of the same type.
5
Makes the motor ready for
operation or starts and stops
motor.
Start
If you press the button when
the motor is stopped, the
motor only starts if no other
functions with higher priority
have been enabled. See
section 12. Priority of settings.
Stop
If you press the button when
the motor is running, the motor
always stops. The "Stop" text
next to the button is on.
1
2
3
4
5
Stop
TM05 4894 3512TM05 4895 2812
0
6
3
bar
H
Q

English (GB)
20
Setting to maximum speed
Press continuously to change over to the
maximum speed. The top light field flashes. When
the top light field is on, press for 3 seconds until
the light field starts flashing.
To go back, press continuously until the desired
setpoint is indicated.
Example
The motor is set to maximum speed.
Figure 21 shows that the top light field is flashing,
indicating maximum speed.
Fig. 21 Maximum speed duty
Setting to minimum speed
Press continuously to change over to the
minimum speed (bottom light field flashes). When
the bottom light field is on, press for 3 seconds
until the light field starts flashing.
To go back, press continuously until the desired
setpoint is indicated.
Example
The motor is set to minimum speed.
Figure 22 shows that the bottom light field is
flashing, indicating minimum speed.
Fig. 22 Minimum speed duty
9.2.2 Start/stop of motor
Stop the motor by pressing . When the motor is
stopped, the "Stop" text next to the button is on. You
can also stop the motor by continuously pressing
until none of the light fields are on.
Start the motor by pressing or by continuously
pressing until the desired setpoint is indicated.
If you have stopped the motor by pressing , it can
only be given free to operation by pressing again.
If you have stopped the motor by pressing , it can
only be restarted by pressing .
You can also stop the motor with R100, Grundfos GO
or via a digital input set to "External stop". See
section 12. Priority of settings.
9.2.3 Resetting of alarms and warnings
You can reset a fault indication in one of the
following ways:
• Via the digital input if you have set it to "Alarm
resetting".
• Briefly press or on the motor. This does
not change the setting of the motor.
You cannot reset a fault indication by pressing
or if the buttons have been locked.
• Switch off the power supply until the indicator
lights are off.
• Switch the external start/stop input off and then
on again.
• With R100.
• With Grundfos GO.
TM05 4896 2812TM05 4897 2812
H
Q
H
Q