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7

GB

OUTPUTS

LINEAR OUTPUT (For LFS-mA only)

This instrument is equipped with one linear output
(OUT 1) programmable as:
- main output (heating or cooling)
- secondary output (cooling)
- analog retransmission of the measured value
- analog retransmission of the operative set point.

Fig. 11  mA OUTPUT 1 WIRING

NOTE:
It is an isolated analog output.
Maximum load: 500 

Ω

.

CURRENT TRANSFORMER INPUT
(For LFS-relay only)

Safety note:
1) Do not run current transformer input wiring

together with AC power cables.

2) This feature excludes the logic input function.
3) The input impedance is equal to 10 

Ω

.

Fig. 10 - CURRENT TRANSFORMER INPUT

WIRING

This input allows to measure and display the
current running in the load driven by the
OUTPUT1 during the ON and OFF period of the
OUT 1 cycle time. By this feature it is also
available the "OUT 1 failure detection" function.

+

_

+

_

20 mA

7

8

OUT 1

12

13

Load

Current

transformer

Содержание LFS - R

Страница 1: ...r ADDENDUM FOR REAR OF BOARD VERSION LFS R 170 ADD LFS RB0 0 8 011 98 B ...

Страница 2: ...SEMBLING 1 Warning 1 General assembling information 1 Wall mounting 1 Omega din rail mounting 2 MECHANICAL DIMENSIONS 3 CONNECTION DIAGRAMS 4 Measuring inputs 4 Outputs 7 Serial interface 9 Power line wiring 10 ...

Страница 3: ...n and maintenance are executed in compliance with this manual 2 The protection degree of these instruments is equal to IP 20 according to IEC529 and they are connected to dangerous power lines for these reasons installation wiring and maintenance must be executed by qualified personnel all warnings contained in this manual must be complied 3 The safety requirements for Permanently Connected Equipm...

Страница 4: ...2 GB OMEGA DIN RAIL MOUNTING For rail mounting use an OMEGA DIN rail in accordance with EN 50 022 35 x7 5 mm or 35 x 15 mm regulations Screwdriver Fig 3 REMOVING Fig 2 MOUNTING ...

Страница 5: ...3 GB MECHANICAL DIMENSIONS Fig 4 MECHANICAL DIMENSIONS ...

Страница 6: ...rrents 2 The input accuracy is equal to 0 2 f s v 1 dgt 25 C of ambient temperature For TC input the f s v should be referred to the higher f s v of the TC selected TC INPUT TC type R and S Fig 6 A INPUT WIRING FOR TC TYPE R AND S CONNECTION DIAGRAMS Connections have to be executed when the instrument is placed in its proper location Fig 5 A LFS RELAY TERMINAL BLOCK Fig 5 B LFS mA TERMINAL BLOCK 1...

Страница 7: ...ould be grounded at one side only to avoid ground loop currents 4 The resistance of the 3 wires must be the same 16 RTD 14 15 16 RTD 14 15 TC type J K L N and T Fig 6 B INPUT WIRING FOR TC TYPE J K L N AND T NOTE 1 Do not run input wires with power cables 2 For TC wiring use proper compensating cable preferable shielded 3 when a shielded cable is used it should be connected to one side only 11 _ S...

Страница 8: ...n the logic input is selected it is used to switch by an external contact from main set point to second set point and viceversa logic input op set point open SP close SP2 12 IN CT SP SP2 for LFS relay SP SP2 for LFS mA 13 LINEAR INPUT Fig 8 mA mV AND V INPUTS WIRING NOTE 1 Do not run input wires together with power cables 2 Pay attention to the line resistance a high line resistance may cause meas...

Страница 9: ...d 500 Ω CURRENT TRANSFORMER INPUT For LFS relay only Safety note 1 Do not run current transformer input wiring together with AC power cables 2 This feature excludes the logic input function 3 The input impedance is equal to 10 Ω Fig 10 CURRENT TRANSFORMER INPUT WIRING This input allows to measure and display the current running in the load driven by the OUTPUT1 during the ON and OFF period of the ...

Страница 10: ...sible from input or communication cables LOAD mA 40 mA 150 mA 0 5 A C µF 0 047 0 1 0 33 R Ω 100 22 47 P W 1 2 2 2 OPERATING VOLTAGE 260 V AC 260 V AC 260 V AC RELAY OUTPUTS Fig 12 RELAY OUTPUTS WIRING The contact rating of OUT 1 is 3A 250V AC on resistive load The contact rating of OUT 2 and 3 is 2A 250V AC on resistive load The number of operations is 1 x 105 at specified rating NOTES 1 Toavoid e...

Страница 11: ...respect to the B terminal for a binary 1 MARK or OFF state b The A terminal of the generator shall be positive with respect to the B terminal for a binary 0 SPACE or ON VOLTAGE OUTPUTS FOR SSR DRIVE For LFS relay only Fig 14 SSR DRIVE OUTPUT WIRING It is a time proportioning output Logic level 0 Vout 0 5 V DC Logic level 1 14 V 20 20 mA 24 V 20 1 mA Maximum current 20 mA NOTE This output is not is...

Страница 12: ...e at the end of the wiring procedure 3 For supply connections use No 16 AWG or larger wires rated for at last 75 C 4 Use copper conductors only 5 Do not run input wires with power cables 6 For 24 V DC the polarity is not a care condition 7 The power supply input is NOT fuse protected Please provide it externally Power supply Type Current Voltage 24 V AC DC T 500 mA 250 V 100 240 V AC T 125 mA 250 ...

Страница 13: ...tronic GmbH Ottostrasse 1 65549 LIMBURG A D LAHN Tel 06431 95680 Fax 06431 57493 NETHERLAND ERO Electronic Nederland Ganieelan 4 2404 CH Alphen a d Rijn Tel 0172 420400 Fax 0172 420395 sales eroelectronic nl SOUTH AFRICA ERO Electronic S A Pty Ltd Airgro House 1343 Spokeshave Avenue Stormill Ext 2 ROODEPOORT Tel 011 4742278 9 Fax 011 4749404 P O Box 43112 Industria 2042 ero sa kingsley co za SPAIN...

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