Mounting
4.2 Mounting the communications module
SIMATIC RF185C, RF186C, RF188C, RF186CI, RF188CI
22 Operating Instructions, 04/2020, C79000-G8976-C512-03
4.2 Mounting the communications module
Introduction
The communication modules are designed for mounting on a flat, solid surface. Alternatively,
you can use the axially symmetrical drill holes of the modules to fasten them to an aluminum
profile using sliding blocks.
Note
Functional ground
If a grounded metal mountin
g surface is used, the bottom mounting screw of the
RF18xC/RF18xCI module already establishes a reliable grounding connection. This
eliminates the need for a separate ground conductor. If you use the fixing screw as
grounding connection, the thread of the
fixing screw or the c
ontact facing of the fastening nut
on the base must be unpainted. This ensures a low
-resistance connection.
Requirements
The following table shows and explains the types of screws you need to mount the modules.
Table 4- 1 Recommended screw types
Cylinder head screw M4 according to DIN EN
ISO 1207 / DIN EN ISO 1580
The minimum screw length should be 35 mm.
If you need washers, use washers conforming to
DIN EN ISO 7089 / DIN EN ISO 7090.
Cylinder head screw with M4 hex socket accord-
To Next Page
Loading...
Need help?
General
