Grundfos CU 3 2 Series Bedienungsanleitung

CU 3X2, CU 3X4

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

Other languages

http://net.grundfos.com/qr/i/96842987

Table of contents

CU 3X2, CU 3X4

English (GB)

Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Български (BG)

Упътване за монтаж и експлоатация. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Čeština (CZ)

Montážní a provozní návod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Deutsch (DE)

Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Dansk (DK)

Monterings- og driftsinstruktion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Eesti (EE)

Paigaldus- ja kasutusjuhend. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Español (ES)

Instrucciones de instalación y funcionamiento . . . . . . . . . . . . . . . . . . . . . . . . . 72

Suomi (FI)

Asennus- ja käyttöohjeet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Français (FR)

Notice d'installation et de fonctionnement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Ελληνικά (GR)

Οδηγίες εγκατάστασης και λειτουργίας . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Hrvatski (HR)

Montažne i pogonske upute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Magyar (HU)

Telepítési és üzemeltetési utasítás. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Italiano (IT)

Istruzioni di installazione e funzionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Lietuviškai (LT)

Įrengimo ir naudojimo instrukcija . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Nederlands (NL)

Installatie- en bedieningsinstructies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

Polski (PL)

Instrukcja montażu i eksploatacji . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Português (PT)

Instruções de instalação e funcionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Română (RO)

Instrucţiuni de instalare şi utilizare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

Table of contents

CU 3X2, CU 3X4

Srpski (RS)

Uputstvo za instalaciju i rad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205

Русский (RU)

Паспорт, Руководство по монтажу и эксплуатации . . . . . . . . . . . . . . . . . . 216

Svenska (SE)

Monterings- och driftsinstruktion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

Slovensko (SI)

Navodila za montažo in obratovanje. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

Slovenčina (SK)

Návod na montáž a prevádzku . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250

Türkçe (TR)

Montaj ve kullanım kılavuzu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

中文 (CN)

安装和使用说明书 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273

日本語 (JP)

取扱説明書 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .284

한국어 (KO)

설치 및 작동 지침 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .295

ﺔﻳﺑﺭﻌﻟﺍ (AR)

ﻝﻳﻐﺷﺗﻟﺍ ﻭ ﺏﻳﻛﺭﺗﻟﺍ ﺕﺎﻣﻳﻠﻌﺗ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318

Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

Declaration of conformity EAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

English (GB)

English (GB) Installation and operating instructions

Original installation and operating instructions

CONTENTS

Page

1. Symbols used in this document

2. Product description

The CU 3X2 is a flexible control unit for control and

monitoring of up to six pumps. In the following

sections two variants will be described:

• CU 352

– Water supply and booster systems

– Heating and air-conditioning systems.

• CU 362

– Wastewater and draining applications.

In the following the two variants will be designated

CU 3X2.

1. Symbols used in this document 5

2. Product description 5

2.1 Indicator lights 6

2.2 Terminals 6

2.3 Potentially explosive environments 6

3. Identification 7

3.1 Type key 7

4. Installation 7

4.1 Location 8

4.2 Enclosure class 8

4.3 Terminals 8

4.4 Cables 8

4.5 Security 8

5. Mechanical installation 9

6. EMC-correct installation 9

6.1 Internal GENIbus connection 10

6.2 Fieldbus communication interface

modules 10

6.3 Fitting the CIM module 10

7. Startup 12

8. Technical data 12

9. Electrical data 12

9.1 Supply voltage 12

9.2 Power consumption 12

9.3 Circuit breaker 12

9.4 Backup fuse 12

9.5 Short-circuit protection 12

9.6 Digital inputs 12

9.7 Analog inputs 12

9.8 Digital outputs (relay outputs) 12

9.9 Conductors 12

9.10 USB port 12

9.11 Battery backup (UPS) 13

9.12 Terminal groups 13

10. Overview of inputs and outputs 14

11. Maintenance 15

12. Service 15

13. Replacing the CU 3X2 15

13.1 Replacing the CIM module 15

14. Dimensions 15

15. Disposal 15

Warning

Prior to installation, read these installation

and operating instructions. Installation and

operation must comply with local

regulations and accepted codes of good

practice.

Warning

If these safety instructions are not

observed, it may result in personal injury.

Warning

If these instructions are not observed, it

may lead to electric shock with consequent

risk of serious personal injury or death.

Caution

If these safety instructions are not

observed, it may result in malfunction or

damage to the equipment.

Note

Notes or instructions that make the job

easier and ensure safe operation.

English (GB)

Fig. 1 Example of CU 3X2

* Some help texts apply to the entire display, other

texts to the individual lines of the display.

2.1 Indicator lights

The CU 3X2 has one green and one red indicator

light.

The green indicator light is on when the power

supply has been switched on.

The red indicator light is on when the system is in

alarm mode.

2.2 Terminals

Fig. 2 Back of the CU 3X2

For further information, see section 9.12 Terminal

groups.

2.3 Potentially explosive environments

The CU 3X2 must not be installed in explosive

environments, but may be used together with

Grundfos pumps approved for installation in

potentially explosive environments.

Warning

If the CU 3X2 is used in a manner not

specified by the manufacturer, the

protection provided by the CU 3X2 may be

impaired.

TM05 3044 0912

Pos. Description

1 LCD display

2Changes to next column in menu

structure.

3 Changes to help text.*

4 Goes up in lists.

5 Goes down in lists.

6Increases the value of a selected

parameter.

7Reduces the value of a selected

parameter.

8 Goes one display back.

9 Goes back to menu "Status".

10 Saves a value.

11 Green indicator light (operation)

12 Red indicator light (alarm)

13 Changes the brightness of the

display.

1213

CU 362

TM05 3181 0912

Pos. Description

1 Nameplate

2 Terminals for digital output relays

3 Terminals for analog inputs

4 Service connection

5 Ethernet (RJ45)

6 Voltage indicator

7 Terminals for digital inputs

8 Terminals for backup battery

9 Terminals for CIM module (optional)

10 Cable clamps for GENIbus connections

11 Internal GENIbus connection

12 Terminal for power supply

13 Label for backup battery

14 USB port

0V 12V

6 7 8 9 10 11 12

English (GB)

3. Identification

The CU 3X2 can be identified by means of the

nameplate on the back. See fig. 3.

Fig. 3 Example of nameplate

The CU 3X2 has a label for the backup battery.

See fig. 4.

Fig. 4 Label for backup battery

Fig. 5 Protective earth terminal

3.1 Type key

4. Installation

The CU 3X2 is only intended for use in control

panels.

Before installation, check the following:

• Does the CU 3X2 correspond to the one

ordered?

• Is it suitable for the power supply available at the

installation site?

• Has it been damaged during transportation?

TM05 3240 1012

Pos. Description

1 Type designation

2 Product number and version number

3 Serial number

4 Production code (year and week)

5 Rated voltage, frequency and power

TM04 2367 2408 TM00 5827 3408

Code Example CU 3 X 2

CU Control unit

3X Controller series

2 Model number

Type

Made in Thailand

96161750

Product No.

Serial No.

.c.

OPEN TYPE PROCESS

CONTROL EQUIPMENT

100-240 VAC 50/60Hz - Max. 22W

CU 362

98146953 - VO1

0536

1228

30 XP

12V dc

Battery powered

0V 12V

96801950

Warning

Switch off the power supply before making

connections. Make sure that it cannot be

accidentally switched on.

Warning

The electrical installation should be carried

out by an authorised person in accordance

with local regulations.

Warning

Observe local regulations for safety, health

and environment.

Warning

The terminals L and N as well as 70 to 75

may be connected to dangerous contact

voltage. External control voltage from

other groups may occur.

Warning

All wires to units outside the control panel

must be of the type H05VV-F according to

CENELEC HD21 (to avoid injury from

touching wires).

USA and Canada:

Field wiring installation shall comply with

National Electrical Code (NEC) and/or

Canadian Electrical Code.

Warning

The installation must incorporate a circuit

breaker in order to switch off the mains

supply. It must be close to the CU 3X2 and

easily accessible for the operator. It must

be marked as circuit breaker for the

CU 3X2. The circuit breaker must be

according to IEC 60947-1 and

IEC 60947-3.

English (GB)

4.1 Location

The CU 3X2 is designed for installation in the front of

a control panel or a separate cabinet.

For outdoor installation the CU 3X2 must be

mounted in a control cabinet with an enclosure class

of minimum IPX4.

4.2 Enclosure class

The CU 3X2 is IP55 when mounted in the front of an

IPX4 enclosure. The cabinet must be of a

flame-retardant material.

USA and Canada

The CU 3X2 is type 3R when mounted in the front

of a cabinet with type rating 1, 2, 3, 3R, 5, 12, 12K

or 13.

4.3 Terminals

All terminals are suitable for conductors of 0.5 to

2.5 mm2 or AWG 20-13.

4.4 Cables

Cables must be rated min. 70 °C.

4.5 Security

Grundfos connected products must be behind a

firewall or connected to a private network.

If a firewall or private network is not in place, the

Grundfos product may be subject to a cyber-security

risk and becomes vulnerable to an attack or

compromise.

Follow the highly recommended configuration

requirements below. If in doubt, consult an IT

Infrastructure Specialist.

4.5.1 CU 352/354/362/372/3X2 DH

CU 3xx is a traditional network connected device and

must be placed on a private network behind a

firewall. It must not be connected directly to the

Internet. Also, no TCP/IP ports must be forwarded to

the product. If you need remote access to the device,

you must use technologies such as Virtual Private

Networks (VPNs) to ensure a secured connection.

Consider contacting an IT Infrastructure Specialist to

establish such a solution.

Fig. 6 Secure connectivity for

CU 352/354/362/372/3X2 DH

Warning

Short-circuit protection

The installation must incorporate external

fuses.

EU/IEC:

Use fuses that comply with IEC 60127.

Rated maximum 10 A, minimum 250 VAC

in both line and in neutral when connecting

the controller to the power source.

USA and Canada (branch circuit

protection):

Use a UL/CSA-listed non-time delay,

class-rated Branch Circuit Fuse (such as

class RK5) rated maximum 10 A, minimum

250 VAC in both line and in neutral when

connecting the controller to the power

source.

Warning

The terminals are only separated with

basic insulation. Therefore, do not connect

a PELV circuit to a terminal adjacent to a

terminal connected to live voltage.

PELV circuits and live wires must be

separated with double or reinforced

insulation.

TM07 4228 1119

Grundfos

device Firewall

Internet

English (GB)

5. Mechanical installation

Fasten the CU 3X2 with the four screws, M5 x 10,

supplied with the unit (pos. 1).

Maximum torque: 1.4 Nm.

Dimensions of the CU 3X2, see section

14. Dimensions.

Fig. 7 Mounting in panel front (standard)

Connect the earth terminal (between the cable

clamps) on the CU 3X2 to the mounting frame

(pos. 2, fig. 7). See fig. 8.

Fig. 8 Earth connection

6. EMC-correct installation

The CU 3X2 is normally mounted in a panel which

also contains an IO 351 module, contactors and

other power equipment. The panel can also contain

other Grundfos modules and frequency converters.

In order to ensure faultless operation, it is very

important to install the electronic modules in an

EMC-correct way:

• Ensure a sufficient earth connection between the

CU 3X2 and the frame. See fig. 8.

• Use screened cables for GENIbus. Connect the

screen to the cable clamp of the CU 3X2 in front

of the terminals A1, Y1 and B1. See fig. 9.

Also use screened cable for the CIM module.

Fig. 9 Screen fixed with cable clamp

• Signal conductors for digital and analog inputs

and outputs should be screened, i.e. run the

screen all the way to the CU 3X2 and connect it

to frame with for instance a cable clamp.

Do not twist screen ends to avoid pig tails, as this

will destroy the screen effect at high frequencies.

Use cable clamps instead.

TM03 1301 4105

Note

In order to achieve enclosure class IP55,

the CU 3X2 must be mounted in a panel or

cabinet.

TM04 2066 1908

Min. 1.5 mm

Max. 3 mm

TM04 2065 1908

Note

Any isolating plastic tape between screen

and sheath must be removed before

mounting the cable in the cable clamp.

English (GB)

6.1 Internal GENIbus connection

Internal communication is established via GENIbus.

Fig. 10 GENIbus connection

The module type and the number of modules depend on the application software.

6.2 Fieldbus communication interface

modules

The CU 3X2 can be connected to an external

communication network via an add-on CIM module.

CIM: Communication Interface Module.

The CIM modules must be ordered separately.

Connect the CIM module as described in the

installation and operating instructions supplied with

the module.

6.3 Fitting the CIM module

The CIM module must be fitted by an authorised

person.

1. Remove the screw in the back cover of the

CU 3X2. See fig. 11.

Fig. 11 Removing the screw that holds the back

cover

TM05 1917 3911

Unit n

Unit n+1

CU 3X2

Warning

Switch off the power supply to the CU 3X2

before fitting the CIM module.

Warning

Electrostatic discharge (ESD) must be

avoided when fitting the CIM module, for

instance by wearing an antistatic wrist

strap as shown in fig. 13.

TM04 2402 2508

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