AUMA PF-M100 Series, Short Instructions

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1. Basic information on fieldbus connection
Electrical connection
The actuator cover must be opened to allow connection of the fieldbus cables.
Refer to actuator operation instructions, “Electrical connection” chapter.
The “Electrical connection” chapter of the operation instructions fully applies
to the connection of the fieldbus cables. It is imperative to heed the safety and
warning instructions of this chapter in particular.
Fieldbus cable
Table 1:
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 MHz Impedance
< 30 pF per metre Cable capacity
> 0.64 mm Wire diameter
> 0.34 mm², corresponds to AWG 22 Cross section
< 110 Ohm per km Loop resistance
CU shielding braid or shielding braid and shielding foil Screening
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).
1,500 500 187.5 ≥ 93.75 Baud rate [kbit/s]
200 400 1,000 1,200 Maximum segment length [m]
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Basic information on fieldbus connection