Siemens SIMATIC NET PROFIBUS manual Fitting the Bus Connector

Passive Components for RS-485 Networks

Fitting the Bus Connector

Points to note about installing the bus connector with axial cable outlet (order number 6GK1 500-0EA02):

SStrip both cable ends as shown in Figure 4-25 with the FastConnect stripping tool (sizes and lengths are shown in the table on the rear of the tool).

A B

approx. 6 mm

10mm

7.5mm

Figure 4-25 Preparing the Ends of the Cable for the Bus Connector with Axial Cable Outlet

SUndo the screws in the casing and remove the cover.

SFeed the wires into the required terminals of the screw terminal blocks.

SPress the cable sheath between the two clips.

SMake sure that the cable sheaths are lying on the metal conductor.

SWhen you connect to the screw terminals, the stranded cores must be fitted with wire-end ferrules (0.25 mm2 complying with DIN 46228).

SMake sure that the braid shield lies on the contact surfaces of the connector.

SReplace the cover and screw it tight.

SActivate the terminating resistor if the bus connector is at the end of a segment.

Note

Stranded cores must only be used in screw terminals with wire-end ferrules fitted (0.25 mm2 complying with DIN 46228). Use only wire-end ferrules made of materials with permanently stable contact properties, for example copper with a tin-plated surface (not aluminum).

PROFIBUS Networks SIMATIC NET	4-45
6GK1970-5CA20-0AA1 Release 2 05/2000