Fieldbus cable
Table 8:
Cable recommendation
Only cables complying with IEC 61158 or IEC 61784, cable type A, may be used for Profibus DP wiring.
135 to 165 Ohm, at a measurement frequency between 3 and 20 MHzImpedance
< 30 pF per metreCable capacity
> 0.64 mmWire diameter
> 0.34 mm², corresponds to AWG 22Cross section
< 110 Ohm per kmLoop resistance
CU shielding braid or shielding braid and shielding foilScreening
Prior to installation, please note:
●
Connect maximum 32 devices to one segment.
●
If more devices are to be connected:
- Allot devices to different segments.
- Connect segments using repeaters.
●
Install fieldbus cables at a distance of minimum 20 cm to other cables.
●
If possible, fieldbus cables should be laid in a separate, conductive, and earthed
cable tray.
●
Ensure absence of equipotential earth bonding differences between the indi-
vidual devices at fieldbus (perform an equipotential earth bonding).
1,500500187.5≥ 93.75Baud rate [kbit/s]
2004001,0001,200Maximum segment length [m]
6.2. SD electrical connection (AUMA plug/socket connector)
Figure 19: SD electrical connection
[1] Terminal compartment (in cover)
[1A] Cable entries for mains connection (power and control contacts)
[1B] Cable entries for fieldbus cables
[2] Socket carrier with screw-type terminals
Short description
Plug-in electrical connection with screw-type terminals for power and control contacts.
Control contacts also available as crimp-type connection as an option.
SD version. For power and control cable connection, remove the AUMA plug/socket
connector and the socket carrier from terminal compartment. Removing the cover
is sufficient for connecting the fieldbus cables.
22
SQV 05.2 – SQV 14.2 / SQRV 05.2 – SQRV 14.2 Control unit: electronic (MWG)
Electrical connection ACV 01.2 Non-Intrusive Profibus DP
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