6.9.3
Potential equalization - evaluation unit and Ex control unit
Connect the grounding conductor on the EvU
1
Lead the potential equalization (4 mm
2
) of the plant ground with one eyelet over
the bolt.
2
Position and tighten the M6 nut.
Connect the grounding conductor on the Ex control unit FS840
b
Screw the potential equalization (4 mm
2
) of the plant ground tight to the screw ter‐
minal.
1
2
Figure 23: Potential equalization on Ex control unit and evaluation unit
1
Potential equalization connection on Ex control unit
2
Potential equalization connection on evaluation unit
6
ELECTRICAL INSTALLATION
46
O P E R A T I N G I N S T R U C T I O N S | GM700 Ex
8019532/100Q/V1-1/2018-08 | SICK
Subject to change without notice