Bus Connection; Electrical Connection; Wiring Diagram - Endress+Hauser TMD 834 Betriebsanleitung

Chapter 2 Installation

Bus connection

Wiring diagram

Bus connection figure:
1 - Housing
2 - Temperature transmitter
3 - Internal grounding terminal
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2.3 Connection

2.3.1 Electrical connection

It is recommended to use a two core twisted and screened cable for installation. The
following values must be adhered to when installing the FISCO model (explosion
hazardous conditions):
• Loop resistance (DC) 15 ...150 Ohm/km, inductance value 0.4 ... 1mH/km,
capacitance 80 ... 200 nF/km, e.g. Siemens 6XV1 830-5AH10 (blue).
• Non Ex area: e.g. Kerpen CEL- PE/OSCR/PVC/FRLA FB-02YS (ST)YFL, Belden
3076F, Siemens 6XV1 830-5BH10 (black)
Hints for connection and earthing (grounding) of the network can be found in the TI
260F/00/de "Project planning notes PROFIBUS-PA" as well as in the PROFIBUS-PA
specification.
The bus line also carries the power and is connected as follows:
• Connect cable cores to + and - terminals
Reversed polarity has no effect on operation
• Connect the cable screen to the internal grounding
• Connect the external grounding to the equipotential bonding conductor.
Caution!
The multiple grounding of the bus cable in explosion hazardous areas is permissible
only under specific conditions, see TI 260F or IEC 79-14.
Segment coupler
PROFIBUS-DP
PROFIBUS-PA
PA + PA + PA - PA -
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TMD 834
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