ABB 3BSE018741R15 cable

Preparation of cables with D-Sub connector The preparation of bus cables is an essential factor in ensuring reliable operation and electromagnetic compatibility (EMC). Wiring requirements 

 The cables must be shielded. 

 The cable shield must be made from a copper braid. 

 The cable shield must make a low impedance connection with the connector casing over a large contact area. This is achieved by: 

 Use of metal or metallized connector casings with a cable clamp for strain relief. 

 The cable clamp must be screwed securely to the connector.

Connecting the cable shield

Strip the cable end so that approx. 3 cm of the shield braid is exposed. 2 Fold back the shield braid over the cable shield. 3 Fit approx. 3 cm of heat shrinkable tubing over the folded back end of the shield braid or use a rubber grommet. 

 5…8 mm of the shield braid must be exposed at the cable end. 

 The folded back shield braid end must be covered by the heat shrinkable tubing or by the rubber grommet. 4 Fit the D-Sub connector to the cable end: 

 The exposed metal shield braid must be clamped to the connector casing with the cable clamp

Power supply 

The device is provided with an internal fuse and is protected against polarity reversal. The functional earthing terminal is connected to both the housing and the 0 V terminal. The device power supply is not electrically isolated. The device requires a 24 VDC power supply from an AC/DC converter with safe isolation (SELV). For other power supply requirements see Chapter 9.5.1 Power supply,  60.  SELV (safety extra low voltage): Circuit in which no dangerous voltage is present, even in the event of a single fault. Phoenix Contact MSTB 2.5/3-ST-5.08 connector, Phoenix order no. 1757022 is supplied with the device.

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