Grounding Connection - Siemens SIMATIC RF600 System Manual

Readers
5.2 RF620R reader
Note
This cable has an 8-pin M12 connector at one end and the other cable end is 'open'. There
are 8 color-coded single cores there for connecting to external devices. There are different
cable lengths in the product range (3 m to 50 m). Long cables can be reduced if necessary.
Note
For long cables: Adapt supply voltage and data rate accordingly
Note that with long cables in particular, the supply voltage of 24 V DC must always be
applied. Note also that the data rate on the serial interface must, if necessary, be reduced.
(See "Configuration Manual RF620R/RF630R")
5.2.1.5

Grounding connection

The RF620R/RF630R can be electrically connected to the ground potential through a contact
washer. The tightening torque must be increased in this case to ensure that electrical contact
is made (2.7 Nm).
Ground connection
104
(a) Hexagon-head screw
(b) Plain washer
(c) Cable lugs
(d) Contact washer:
Use contact washers according to the
Siemens standard SN 70093-6-FSt-flNnnc-
480h for ground connection,
Siemens item No.: H70093-A60-Z3
System Manual, 10/2009, J31069-D0171-U001-A8-7618
SIMATIC RF600