Grundfos MP 204 User manual

Control MP 204
Installation and operating instructions
GRUNDFOS INSTRUCTIONS
Installation and operating instructions
http://net.grundfos.com/qr/i/99304312

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Table of contents
3
Control MP 204
English (GB)
Installation and operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Deutsch (DE)
Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Español (ES)
Instrucciones de instalación y funcionamiento. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Français (FR)
Notice d'installation et de fonctionnement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Italiano (IT)
Istruzioni di installazione e funzionamento. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Polski (PL)
Instrukcja montażu i eksploatacji . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
ﺔﻳﺑﺭﻌﻟﺍ (AR)
ﻝﻳﻐﺷﺗﻟﺍ ﻭ ﺏﻳﻛﺭﺗﻟﺍ ﺕﺎﻣﻳﻠﻌﺗ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

English (GB)
4
English (GB) Installation and operating instructions
Original installation and operating instructions
These installation and operating instructions describe Grundfos
Control MP 204.
Sections 1-3 give the information necessary to be able to unpack,
install and start up the product in a safe way.
Sections 4-9 give important information about the product as well
as information on service, fault finding and disposal of the
product.
CONTENTS
Page
1. General information
1.1 Hazard statements
The symbols and hazard statements below may appear in
Grundfos installation and operating instructions, safety
instructions and service instructions.
The hazard statements are structured in the following way:
1.2 Notes
The symbols and notes below may appear in Grundfos
installation and operating instructions, safety instructions and
service instructions.
1. General information 4
1.1 Hazard statements 4
1.2 Notes 4
1.3 Scope of delivery 5
2. Installing the product 5
2.1 Mechanical installation 5
2.2 Electrical installation 5
3. Commissioning the product 8
3.1 Startup 8
3.2 Operation 8
4. Product introduction 8
4.1 Modules 8
4.2 Grundfos GO Remote 9
4.3 Communication 9
4.4 Identification 9
5. Control functions 10
5.1 Switch control 10
6. Taking the product out of operation 10
6.1 Decommissioning 10
7. Fault finding the product 11
8. Technical data 11
9. Disposal of the product 11
Read this document before installing the product.
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.
SIGNAL WORD
Description of hazard
Consequence of ignoring the warning.
- Action to avoid the hazard.
Observe these instructions for explosion-proof
products.
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.
If these instructions are not observed, it may result in
malfunction or damage to the equipment.
Tips and advice that make the work easier.

English (GB)
5
1.3 Scope of delivery
These installation and operating instructions apply to the
Grundfos Control MP 204. The Control MP 204 is a control
cabinet with built-in motor protection.
These instructions only focus on the Control MP 204 control
cabinet.
The main component in the control cabinet is an MP 204 motor
protector. This component is not described in detail in this
manual.
Further documentation supplied with the Control MP 204:
• Technical documentation:
– wiring diagram
– parts list
– sectional drawing, etc.
• Installation and operating instructions for the MP 204.
For information on MP 204, see the installation and operating
instruction for the product.
Fig. 1 Example, Control MP 204
2. Installing the product
Before installation, check the following:
• Checkthat the specifications of the Control MP 204 correspond
to the order
• Check the product for transport damage.
Contact the transporter immediately in case of damage.
The Control MP 204 is operated either manually or via remote
access (optional). See section 3.2 Operation.
2.1 Mechanical installation
This section describes the mechanical installation of the Control
MP 204 and also provides general advice about how to position
sensors in order to achieve stable, measured values.
The control cabinet is designed for indoor use, either mounted on
a wall or directly on the floor.
2.1.1 Sensors
To ensure correct and reliable operation of the Control MP 204, it
is important to position and install sensors according to the
manufacturer's instructions.
2.1.2 Configuration of the product
Use Grundfos GO Remote to configure Control MP 204. See
4.2 Grundfos GO Remote.
2.2 Electrical installation
The electrical connection must be carried out by an authorised
electrician in accordance with local regulations.
The electrical installation must be carried out according to the
wiring diagram supplied with the Control MP 204.
Fig. 2 Example, Control MP 204, DOL version
The following sections are intended as a supplement to the wiring
diagram supplied with the Control MP 204.
The terminal blocks, X1, X10, X11, are shown in section
2.2.1 Terminal blocks.
TM07 1342 1318
If the product is to be used outdoors, it must be
located in a separate cabinet which is suitable for
outdoor use.
The sensors must always be correctly sized for the
range they are to measure. If the sensors are too
small, they will be saturated. If they are too big, the
resolution of the sensor signal will be too poor.
WARNING
Electric shock
Death or serious personal injury
Before starting any work on the product, make sure
that the power supply has been switched off and that
it cannot be accidentally switched on.
TM06 9435 2317
Pos. Description
1 MP 204 motor protector
2 Terminal block X0, main switch
3 Terminal blocks X1, X10, X11
4Circuit breakers
5 Contactor
6 Auxiliary relays
X1
X0 Q00 X10 X11
54
1
6
2
3
F10
Q12 F01
E10
K3
FE 5
T1 T2
L3/AL2/LL1/N K8 K10
Power Trip
T
R+
-
MP 204
ABY+CCSN 95969798

English (GB)
6
2.2.1 Terminal blocks
The cables and wires must be connected as shown in the wiring
diagram supplied with the Control MP 204.
Fig. 3 DOL example, terminals in control cabinet
Terminal block for mains supply, X0
Fig. 4 Terminal block for mains supply, X0
Terminal block for pump, X1, DOL
Fig. 5 Terminal block for pump, X1
The following connections must be made directly on the MP 204:
• T1-T2, PTC sensor or thermistor. They must be short-circuited
if no sensor or thermistor is connected.
• NO relay output, 2 A max., MP 204
• GENIbus A
• GENIbus Y
• GENIbus B
• +, Pt100 or Pt1000 sensor
• C, Pt100 or Pt1000 sensor
TM06 9438 2317TM06 9436 2317
Pos. Description
1N, PE
2L1
3L2
4L3
X0 Q00 X1 X10 X11
NUVWPE
PE
1234 56
PE1 PE2 32 33 3 43 3 3765
1234
X0 Q00
NPE
TM06 9437 2617 - TM06 9450 2317
Connection Description
U Phase U
V Phase V
W Phase W
PE Ground connection
X1
UVWPE
VWPEU
U1 V1 W1
PE
X1
M
M1 3~

English (GB)
7
Terminal block for pump alarm, X11
Fig. 6 Terminal block for pump alarm, X11
Terminal block for pressure switch or level switch, X10
Fig. 7 Terminal block for pressure switch or level switch, X10
TM06 9439 2317 - TM06 9636 2617
Connection Description
32-33 Pump run, 2 A
34-35 Fault, MP 204, 2 A
36-37 Fault, water shortage, 2 A
X11
32 33 343 3 3765
Q12
X11
K10
K8
13
14
34
34
31
31
32 33 34 35 36 37
Pump run Fault, MP 204 Fault, water shortage
TM06 9440 2717
Connection Description
1-2 Ground connection
3-4 Pressure or level switch
PE1 Ground connection
5-6
Water-shortage supervision.
Pressure or level switch.
If not used, a cross-bridge is mounted.
PE2 Ground connection
All cables used for control signals from analog and
digital sensors must be screened to ensure stable
and correct function.
X10
1234 56
PE1 PE2
PP
X10 1 2 3 4 PE1 5 6 PE2
B1 B2
22 44 11 PE PE
B2
241PE
Minimum and
maximum pressure
switch
Example:
Water-shortage
pressure switch
Cross-bridge isolated
Water-shortage
supervision
Example:
Level switch
Cross-bridge
isolated
Remote On/Off

English (GB)
8
3. Commissioning the product
Checks before first startup:
• The pump is installed according to the installation and
operating instructions for the pump type used.
• The MP 204 is configured either by use of a PC Tool or with
Grundfos GO Remote according to the motor and pump
specifications.
3.1 Startup
The motor current and trip conditions have to be adjusted and set
during startup. To adjust and set these parameters, see
installation and operating instructions for the MP 204.
Check that the motor and pump operates according to the
specifications.
3.2 Operation
Control MP 204 is operated via a "H-O-A" switch in the cabinet
front or via a PC.
Manual, H
In Manual mode, the pump starts directly in DOL or SD mode.
Off, O
In Off mode, the pump is switched off.
Auto, A
In Auto mode, a pressure switch, float switch or a signal from a
PLC system, is used to control the pump.
For manual operation, both variants of the Control MP 204
incorporate the following components in the cabinet front.
Fig. 8 Example, Control MP 204
The Control MP 204 operates with two sets of limits:
• a set of warning limits
• a set of alarm limits, trip.
If one or more of the warning limits are exceeded, the motor
continues to run.
If one of the alarm limits is exceeded, the motor is stopped.
4. Product introduction
The Control MP 204 is used to start and stop the pump according
to an input signal. The input signal comes either from a main
control system, like a PLC, or from a simple input, like a switch.
The built-in MP 204 motor protector will ensure long service life of
the pump.
The Control MP 204 can optionally be fitted with a Grundfos CIU
unit, Communication Interface Unit, enabling transmission of the
collected data.
4.1 Modules
The Control MP 204 is designed to protect the motor both
electrically and mechanically.
MP 204 motor protector
The MP 204 protects the motor electrically by disconnecting the
motor or pump when one of the trip limits has been reached.
Trip conditions:
• Overload
• Underload, dry running
• Temperature, Tempcon sensor, PTC/thermal switch and Pt
sensor
• Missing phase
• Phase sequence
• Overvoltage
• Undervoltage
• Power factor, cos φ
• Current unbalance.
Sensor inputs and output:
• Pt100 or Pt1000 sensor
• PTC sensor.
See installation and operating instructions for the MP 204.
Designation Description
H Hand, manually operated
OOff
A Auto, automatically operated
TM06 9430 2317
Pos. Description
1 "H-O-A" selector switch
2 Red indicator light
3 Main switch
Q00
On
off
o
21
3
From the factory, the MP 204 is set to automatic
restarting after a trip.

English (GB)
9
4.2 Grundfos GO Remote
The product is designed for infrared communication with
Grundfos GO Remote. MP 204 must be configured using
Grundfos GO Remote.
Grundfos GO Remote enables setting of functions and gives
access to status overviews, technical product information, alarm
logs and actual operating parameters.
Fig. 9 Grundfos GO Remote communication via infrared
connection, IR
4.2.1 Infrared communication
When communicating via infrared light, Grundfos GO Remote
must be pointed at the control panel.
4.3 Communication
If a Grundfos CIU unit, Communication Interface Unit, is to be
used, we recommend you to fit it according to the wiring diagram
and layout supplied with the Control MP 204.
All variants can be extended with external communication as an
option.
4.4 Identification
4.4.1 Nameplate
Fig. 10 Nameplate
4.4.2 Type key
TM06 6256 2719
Pos. Description
1
Grundfos MI 301:
Separate module enabling radio or infrared
communication. Use the module together with an
Android or iOS-based smart device with Bluetooth
connection.
+
1
TM06 9426 2317
Pos. Description
1 Type designation
2Model.
Product number, serial number and production code.
3 Supply voltage and frequency
4 Order number
5 Rated current
6 Short-circuit current rating
7 Maximum ambient temperature
8 Number of pumps
9 Starting method
10 Imin. / Imax.
11 Enclosure class
12 Approval marks
13 Weight
14 Country of origin
Example Control MP 204 1x 100.0 - 150.0 A DOL U1 AB
Product type
Control range
Number of pumps
Current range of pumps
Starting method
DOL: Direct On Line
SD: Star-Delta
Mains:
U1: 3 x 400 V, 50 Hz, PE
U2: 3 x 400 V, 50 Hz, N, PE
Options:
A: Dry-running protection
B: Magnetic valve with a float switch
MADE IN GERMANY
QR
code
IP Class: 54
Weight: 341.5 kg
Pumps: 2 13 A 21 A DOL
No. Imin Imax Starting Method
In: 25 A Icc: 10 kA T
ambmax:35
°C
Order No.:
Mains: 3x400 V, 50 Hz, PE
Model: A_Partnumber_Serial number_PX_YYWW
Type: Control MP 204 2x13-21 A DOL U1 A
DK - 8850 - Bjerringbro - Denmark
99049929
1
3
5
6
8
11 10
13
14
2
9
7
4
12

English (GB)
10
5. Control functions
This section describes the available control modes:
• Switch control
– Control MP 204 controlled by a pressure switch
– Control MP 204 controlled by a float switch
– Control MP 204 controlled by a main control system, for
example a PLC.
5.1 Switch control
Control MP 204 controlled by a pressure switch
If a constant pressure is required in a closed system, a pressure
switch can be connected. The pressure switch starts and stops
the pump according to the setpoint, pressure. Use terminals X10:
3 + 4.
Fig. 11 Example, pressure switch
Control MP 204 controlled by a float switch
If a constant level is required in an open system, a level
sensor,float switch, can be used to start and stop the pump.
When pumping into an open tank or reservoir, the pump is started
when the water level reaches the start level. The pump is stopped
when the stop level is reached.
The digital sensors used must be potential-free switches, like a
float switch or a similar type of switch. Use terminals X10: 3 + 4.
Fig. 12 Example, float switch
Control MP 204 controlled by a main control system
The Control MP 204 is controlled by a main control system, pos.
1, fig. 13, for example a PLC or a similar main control system.
Fig. 13 Example, main control system
6. Taking the product out of operation
6.1 Decommissioning
Observe the following if the product is to be permanently taken
out of operation.
An electrode relay can optionally be installed as
dry-running protection.
TM06 9428 2317
Q00
On
off
o
Pump
Pressure
switch
Control MP 204
TM06 9427 2317TM06 9429 2317
WARNING
Electric shock
Death or serious personal injury
Before starting any work on the product, make sure
that the power supply has been switched off and that
it cannot be accidentally switched on.
Q00
On
off
o
Pump
Control MP 204
Start
Stop
Buffer tank
Float switch
Q00
On
off
o
Pump
Control MP 204
1