Beckhoff ELX3312, Operating Manual

Page: 85 / 88

Table of figures
ELX3312 and ELX3314 85 Version: 1.3.0
Table of figures
Fig. 1 ELX2008-0000 with date code 2519HMHM, BTN 0001f6hd and Ex marking ............................. 9
Fig. 2 ELX9560-0000 with date code 12150000, BTN 000b000 and Ex marking ................................. 10
Fig. 3 ELX9012 with date code 12174444, BTN 0000b0si and Ex marking .......................................... 11
Fig. 4 ELX3312 - 2-channel analog input terminal for thermocouples, 16 bit, Ex i ................................ 12
Fig. 5 ELX3314 - 4-channel analog input terminal for thermocouples, 16 bit, Ex i ................................ 13
Fig. 6 Valid arrangement of the ELX terminals (right terminal block). ................................................... 19
Fig. 7 Valid arrangement - terminals that do not belong to the ELX series are set before and after the
ELX terminal segment. The separation is realized by the ELX9560 at the beginning of the ELX
terminal segment and two ELX9410 at the end of the ELX terminal segment. ...........................
19
Fig. 8 Valid arrangement - multiple power supplies by ELX9560, each with an upstream ELX9410. ... 19
Fig. 9 Valid arrangement - ELX9410 in front of an ELX9560 power supply terminal............................. 20
Fig. 10 Invalid arrangement - missing ELX9560 power supply terminal.................................................. 20
Fig. 11 Invalid arrangement - terminal that does not belong to the ELX series within the ELX terminal
segment. ......................................................................................................................................
20
Fig. 12 Invalid arrangement - second ELX9560 power supply terminal within the ELX terminal seg-
ment without an upstream ELX9410............................................................................................
20
Fig. 13 Invalid arrangement - missing ELX9012 bus end cover. ............................................................. 21
Fig. 14 Installation position and minimum distances ............................................................................... 22
Fig. 15 Attaching on mounting rail ........................................................................................................... 23
Fig. 16 Disassembling of terminal............................................................................................................ 24
Fig. 17 Standard wiring............................................................................................................................ 25
Fig. 18 High Density Terminals................................................................................................................ 25
Fig. 19 Connecting a cable on a terminal point ....................................................................................... 26
Fig. 20 ELX3312 - Contact assignment ................................................................................................... 28
Fig. 21 ELX3314 - Contact assignment ................................................................................................... 30
Fig. 22 Full scale value, measuring span ................................................................................................ 32
Fig. 23 SE and DIFF module as 2-channel version ................................................................................. 34
Fig. 24 2-wire connection......................................................................................................................... 36
Fig. 25 Common-mode voltage (Vcm)..................................................................................................... 37
Fig. 26 Recommended operating voltage range...................................................................................... 38
Fig. 27 Signal processing analog input.................................................................................................... 38
Fig. 28 Diagram signal delay (step response) ......................................................................................... 40
Fig. 29 Diagram signal delay (linear) ....................................................................................................... 40
Fig. 30 Principle of the thermocouple ...................................................................................................... 41
Fig. 31 Measurement uncertainty for thermocouple type B ..................................................................... 44
Fig. 32 Measurement uncertainty for thermocouple type C..................................................................... 45
Fig. 33 Measurement uncertainty for type E thermocouple ..................................................................... 46
Fig. 34 Measurement uncertainty for type J thermocouple...................................................................... 47
Fig. 35 Measurement uncertainty for type K thermocouple ..................................................................... 48
Fig. 36 Measurement uncertainty for type L thermocouple ..................................................................... 49
Fig. 37 Measurement uncertainty for type N thermocouple..................................................................... 50
Fig. 38 Measurement uncertainty for type R thermocouple..................................................................... 51
Fig. 39 Measurement uncertainty for type S thermocouple ..................................................................... 52
Fig. 40 Measuring uncertainty for type T thermocouple .......................................................................... 53
Fig. 41 Measuring uncertainty for type U thermocouple .......................................................................... 54