Connecting Signal Cables - Siemens FIDAMAT 6 Operating Instructions Manual

5.4.2

Connecting signal cables

NOTICE
Device damage
Only connect the signal lines to devices that are protected by electrical separation from
their auxiliary power.
● Connect the signal lines to the D-sub connectors on the rear of the device.
● The connecting cables to the relay outputs, the binary inputs, the analog inputs and the
analog output must be shielded. Connect these to the corresponding trapezoidal
connectors (D-sub connectors) in accordance with the terminal diagrams.
● The reference ground of the analog inputs is the potential of the housing.
● The analog output is floating.
● The shielding of the interface cable must be at the potential of the housing. Connect the
shield of the cable to the shield of the D-sub connector over a large area. The core cross-
section must be ≥ 0.5 mm². The length of the interface cable must not exceed 500 m.
Note
All connecting cables (except for the power supply cord) must be shielded. The shields of
the connected cables must be connected to the respective screw fittings continuously
over a large area. The core cross-section must be ≥ 0.5 mm². We recommend cables of
type JE-LiYCY...BD. The cable length of the analog output depends on the load.
See also
Plug connector assignment of the optional board and PROFIBUS (Page 50)
FIDAMAT 6
Operating Instructions, 01/2019, A5E00222135-04
Connecting
5.4 Electrical connection
47