Beckhoff ELX3351, Operating Manual

Page: 70 / 71

Table of figures
ELX3351 70 Version: 1.3.1
Table of figures
Fig. 1 ELX1052-0000 with date code 32180000, BTN 10000100 and Ex marking ............................... 9
Fig. 2 ELX9012 with date code 32180005 and Ex marking................................................................... 10
Fig. 3 1-channel analog input terminal for strain gauge, 16 bit, Ex i...................................................... 11
Fig. 4 Valid arrangement of the ELX terminals (right terminal block). ................................................... 16
Fig. 5 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. ...........................
16
Fig. 6 Valid arrangement - multiple power supplies by ELX9560, each with an upstream ELX9410. ... 16
Fig. 7 Valid arrangement - ELX9410 in front of an ELX9560 power supply terminal............................. 17
Fig. 8 Invalid arrangement - missing ELX9560 power supply terminal.................................................. 17
Fig. 9 Invalid arrangement - terminal that does not belong to the ELX series within the ELX terminal
segment. ......................................................................................................................................
17
Fig. 10 Invalid arrangement - second ELX9560 power supply terminal within the ELX terminal seg-
ment without an upstream ELX9410............................................................................................
17
Fig. 11 Invalid arrangement - missing ELX9012 bus end cover. ............................................................. 18
Fig. 12 Installation position and minimum distances ............................................................................... 19
Fig. 13 Attaching on mounting rail ........................................................................................................... 20
Fig. 14 Disassembling of terminal............................................................................................................ 21
Fig. 15 Standard wiring............................................................................................................................ 22
Fig. 16 Connecting a cable on a terminal point ....................................................................................... 22
Fig. 17 ELX3351 - Contact assignment ................................................................................................... 24
Fig. 18 ELX3351 - Connection of a full bridge in 6-wire technology ........................................................ 25
Fig. 19 Strain gauge ................................................................................................................................ 26
Fig. 20 quarter, half, and full bridge ......................................................................................................... 27
Fig. 21 4-wire connection......................................................................................................................... 28
Fig. 22 6-wire connection......................................................................................................................... 28
Fig. 23 Example of a load cell.................................................................................................................. 29
Fig. 24 Parallel strain gauge .................................................................................................................... 31
Fig. 25 Max. input voltages...................................................................................................................... 33
Fig. 26 Parallel connection with ELX3351 ............................................................................................... 34
Fig. 27 ELX3351 - Block diagramm ......................................................................................................... 35
Fig. 28 Notch characteristic/amplitude curve and step response of the FIR filter.................................... 35
Fig. 29 Step response of the IIR filter ...................................................................................................... 36
Fig. 30 Effect of dynamic IIR filters .......................................................................................................... 37
Fig. 31 InputFreeze example ................................................................................................................... 39
Fig. 32 Idling recognition example ........................................................................................................... 40
Fig. 33 Adaptation to the sensor curve .................................................................................................... 41
Fig. 34 Zero calibration with command 0x0101 in CoE object 0xFB00:01 .............................................. 42
Fig. 35 Loading with reference load, command 0x0102 in CoE object 0xFB00:01 ................................. 42
Fig. 36 Control word, tare ........................................................................................................................ 44
Fig. 37 Full scale value, measuring span ................................................................................................ 45
Fig. 38 SE and DIFF module as 2-channel version ................................................................................. 47
Fig. 39 2-wire connection......................................................................................................................... 49
Fig. 40 Common-mode voltage (Vcm)..................................................................................................... 50
Fig. 41 Recommended operating voltage range...................................................................................... 51