Grundfos LT 200 User manual

LT 200

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

Table of contents

LT 200

English (GB)

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

 (BG)

   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

eština (CZ)

Montážní a provozní návod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Deutsch (DE)

Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Dansk (DK)

Monterings- og driftsinstruktion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Eesti (EE)

Paigaldus- ja kasutusjuhend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Español (ES)

Instrucciones de instalación y funcionamiento . . . . . . . . . . . . . . . . . . . . . . . . . 41

Suomi (FI)

Asennus- ja käyttöohjeet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Français (FR)

Notice d'installation et de fonctionnement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

 (GR)

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Hrvatski (HR)

Montažne i pogonske upute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Magyar (HU)

Telepítési és üzemeltetési utasítás. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Italiano (IT)

Istruzioni di installazione e funzionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Lietuviškai (LT)

rengimo ir naudojimo instrukcija . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Latviešu (LV)

Uzstdšanas un ekspluatcijas instrukcija. . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Nederlands (NL)

Installatie- en bedieningsinstructies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Polski (PL)

Instrukcja montau i eksploatacji . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Português (PT)

Instruções de instalação e funcionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Table of contents

LT 200

Român(RO)

Instruciuni de instalare i utilizare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Srpski (RS)

Uputstvo za instalaciju i rad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

 (RU)

,     . . . . . . . . . . . . . . . . . . 125

Svenska (SE)

Monterings- och driftsinstruktion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Slovensko (SI)

Navodila za montažo in obratovanje. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Slovenina (SK)

Návod na montáž a prevádzku . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

 (UA)

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

中文 (CN)

安装和使用说明书 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

English (GB)

English (GB) Installation and operating instructions

Original installation and operating instructions

CONTENTS

Page

1. Symbols used in this document

2. Introduction

The LT 200 is a unit enabling the use of an analog

4-20 mA pressure transmitter for registration of level

together with Grundfos controllers, types LC, LCD

108 and 110, instead of rod electrodes and float

switches.

The unit has four digital outputs with individual

setpoints and shows the actual level.

1. Symbols used in this document 5

2. Introduction 5

3. Installation 6

3.1 Installation of pressure transmitter 7

3.2 Connections to LC, LCD 108 7

3.3 Connections to LC, LCD 110 8

4. Setting and operation 9

4.1 Setting 9

5. Technical data 1

6. Disposal 1

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)

3. Installation

Check that the supply voltage and frequency

correspond to the values stated on the nameplate.

Connect the LT 200 as shown below.

Fig. 1 Connections to LT 200

Connect a 2-wire pressure transmitter with an output

current of 4-20 mA between terminals Ub and Io. Ub

delivers a nominal output voltage of 24 VDC.

Fig. 2 Earthing the cable screen

Warning

The electrical installation must be carried

out by an authorised person in accordance

with local regulations and the relevant

wiring diagram.

TM05 6243 4512

LN U

1234G

250 mA T

230 VAC 50/60Hz 4-20 mA

Pressure transmitter

LT 200 LC,

LCD 108

LC,

LCD 110 CU 21X Other

connections

L- - - 230 V

N- - -

UB---

4-20 mA

IO---

11212 1 -

22222 2 -

33232 3 -

44242 4 -

G31 98G -

Caution

Warning

Install an external fuse of 250 mA T as

shown in fig. 1.

Caution

Connect the screen of the cable from the

pressure transmitter via a metal clamp to

the earthed metal back plate of the box

where the LT 200 is to be installed.

TM03 1654 2505

CU 351

LT 200

English (GB)

3.1 Installation of pressure transmitter

Place the pressure transmitter on the bottom of the

pit.

If the pit is cleaned regularly, we recommend placing

the transmitter in a tube for protection. The

transmitter cable is equipped with strain relief and

two ventilation tubes. The tubes must not be closed

off/obstructed, as the liquid pressure is measured in

relation to the ambient air pressure. Use a junction

box with venting if the cable is to be extended.

3.2 Connections to LC, LCD 108

Connect terminals 1, 2, 3, 4 and G to the

corresponding terminals of the CU 21X or to these

terminals of LC, LCD 108:

Fig. 3 Connections to LC, LCD 108

G Terminal 31

1 Terminal 12

2 Terminal 22

3 Terminal 32

4 Terminal 42

TM05 6244 4512

12 G43

1F2 1F3

T11

T21

T12

T22

X2 X2

AC 1 2 G 3 4 G S1 T1 S2 T2

CU 21X.XXX.X

Motor 2

Thermal circuit

breaker

Level switches or

electrodes

Level switches or

remote switch

LT 200

Motor 1

Thermal circuit

breaker

English (GB)

3.3 Connections to LC, LCD 110

Connect terminal G to terminal G of the CU 21X or

terminal 98 of the thermal relay in LC, LCD 110. See

wiring diagram.

Fig. 4 Connections to LC, LCD 110

Caution

Do not connect terminal G to terminal 11 of

LC, LCD 110.

TM05 6245 4612

12 G43

1F2 1F3

T11

T21

T12

T22

X2 X2

AC 1 2 G 3 4 GS1T1S2T2

CU 21X.XXX.X

Motor 1

Thermal circuit

breaker

Motor 2

Thermal circuit

breaker

Level switches or

electrodes

Level switches or

remote switch

LT 200

English (GB)

4. Setting and operation

When the LT 200 is connected to the power supply,

the display normally shows the actual level (metres

head). If no pressure transmitter is connected

(current input measures < 4 mA), the display will

show "---" instead as an indication of wire

breakage/sensor fault.

Fig. 5 Control panel on LT 200

The five indicator lights have these functions:

4.1 Setting

You can set these parameters to adapt the LT 200 to

the application:

• range of pressure transmitter

• selection of LC, LCD 108 or LC, LCD 110

• four setpoints for activation of the four level

outputs L1 to L4.

Reading of parameters

Press [ ∧] and [ ∨] to see the actual parameter

settings. Flashing yellow indicator lights indicate

which parameter is shown in the display:

If no button is pressed for more than eight seconds,

the display and the yellow indicator lights will return

to normal indication of the actual level.

TM05 6246 4512

Indicator

light Description

Illuminated when the LT 200 is

connected to the power supply and

functioning normally.

Level is higher than setpoint L4;

output L4 is activated.

Level is higher than setpoint L3;

output L3 is activated.

Level is higher than setpoint L2;

output L2 is activated.

Level is higher than setpoint L1;

output L1 is activated.

Indicator

light Description

Setpoint L1

Setpoint L2

Setpoint L3

Setpoint L4

Setpoint for pressure transmitter

(level in metres corresponding to

20 mA, full scale)

If the LT 200 is connected to LC or

LCD 108, outputs L1 and L2 are

activated, +5 V, and outputs L3 and

L4 are activated, 0 V.

If the LT 200 is connected to LC or

LCD 110, all outputs are activated,

+5 V.

English (GB)

Changing parameters

1. Press [ ∧] and [ ∨] to select the parameter that is

to be changed.

2. Press [ ●]. The first digit in the display starts

flashing.

3. Change the digit with [ ∧] and [ ∨].

4. Press [ ●] to change the next digit.

5. When no more digits can be changed, the display

will stop flashing, and the parameter has been

changed.

5. Technical data

Supply voltage

230 VAC + 10 %/- 20 %, 50 Hz.

Maximum power consumption

6 VA.

Interface for pressure sensor

2-wire, 4-20 mA sensor, max. 10 metres full scale.

24 VDC output (+ 5 %/- 15 %) for supply to sensor.

Max. cable length: 30 metres, screened cable.

Outputs for CU 21X

Four digital outputs, +5 V, for connection of CU 21X.

Zout = 480 .

Max. cable length: 3 m.

Display

3-digit, 7-segment LED display, green.

Accuracy

± 0.3 % of full scale.

± 1 digit.

Enclosure

IP20.

Ambient temperature

-20 to +50 °C.

6. Disposal

This product or parts of it must be disposed of in an

environmentally sound way:

1. Use the public or private waste collection service.

2. If this is not possible, contact the nearest

Grundfos company or service workshop.

Subject to alterations.

Note

If you try to change a parameter to an

invalid value, the parameter will return to

its original value when the display stops

flashing.

Note

If no button is pressed for more than eight

seconds during the setting of a parameter,

the parameter will be set to the actual

value shown in the display, and the display

will stop flashing.

Caution

The LT 200 does not check if the individual

setpoints are logical.

L2 can for instance be set to a lower level

than L1 and cause a CU 21X controller to

indicate fault, assuming that the L1 sensor

is defective.

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