Siemens RF182C, Руководство по эксплуатации

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Connecting
4.5 Connecting the RF182C to functional ground (PE)
RF182C communication module
Operating Instructions, 10/2010
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4.5 Connecting the RF182C to functional ground (PE)
Features
● You have to connect the RF182C to the functional ground (PE). For this purpose, a
grounding screw for one grounding cable is provided on the communication module.
● If a grounded metal mounting surface is used, the bottom mounting screw of the RF182C
module already establishes a reliable grounding connection. This eliminates the need for
a separate grounding cable.
● The connection to functional ground (PE) is also required to deflect the interference
currents and for electromagnetic compatibility.
Requirements
● Always make sure there is a low-resistance connection to the functional ground (PE).
● If you use the fixing screw as grounding connection, the thread of the fixing screw or the
contact facing of the fastening nut on the base must be unpainted. This ensures a low-
resistance connection.
Required tools (only if grounding via the grounding cable is required).
● Screwdriver
● Stripping tool
● Crimp tool
Required accessories (only if grounding via the grounding cable is required).
● M5 x 10 grounding screw and washers
● Grounding cable (copper braided cable) with minimum cross-section of 4 mm
2
● Cable lug