Siemens SIMATIC ET 200pro FC-2 Operating Instructions Manual page 39

Mount and ground rack
Requirements
Mounting and ground-
ing
Outer fixing screws
Grounding cable
Tools:
● Suitable screw wrench or screwdriver
● Stripping tool and crimp tool for the grounding cable
Procedure
1. If necessary, mark the mounting holes on the mounting base, then drill holes with
diameter of 8.5 mm
2. Screw-mount the rack onto the carrier.
3. Strip the grounding cable (Cu strip, for example) for your functional earth (FE) to a
suitable length, then crimp an M8 lug onto the conductor.
4. Fasten the grounding cable using one of the bore holes of the rack: Slip the spring lock
washer, the washer and the cable lug onto the mounting screw, then screw the rack onto
the carrier.
5. Connect the opposite end of the grounding cable to ground potential.
Ensure adequate equipotential bonding.
Figure 4-3
You have mounted and grounded the rack.
❒
SIMATIC ET 200pro FC-2 converter
Operating Instructions, 04/2018, FW V4.7 SP10, A5E34257324B AF
Material required
M8 cylindrical head screw according to
ISO 1207/ISO 1580 (DIN 84/DIN 85)
Hexagonal head screw, M8, according
to ISO 4017 (DIN 4017)
Insulated cable, conductor cross-
section: min. 4 mm
Ring cable lug for M8
M8 spring washer
mm.
±0.2
Ground the rack
Explanation
Choose a suitable screw length
for your configuration. You also
need 8.4 mm washers according
to ISO 7092 (DIN 433)
)
2
Installation
4.2 Mounting the racks
37