Grundfos LT 200 User manual

LT 200
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

2

3
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
4
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)
5
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
0
6. Disposal 1
0
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)
6
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 B I O 1234G
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)
7
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
X2
11
12 21 22 31 32 41 42
1F2 1F3
97
T11
98
T21
T12
T22
97
98
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)
8
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
X2
1F2 1F3
97
T11
98
T21
T12
T22
97
98
X2 X2
11
12 21 22 31 32 41 42
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)
9
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)
10
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.