Siemens ET 200pro Operating Instructions Manual page 52

Mounting
3.2 Rack
Required tools
● Wrench or screwdriver, matching the selected fixing screws.
● Stripping tool and crimp tool for the grounding cable.
Required accessories
Table 3- 2
For...
Outer fixing screws
Grounding cable
Mounting the rack and connecting functional ground (FG)
1. Make allowances for sufficient installation space when you mount the rack onto the
carrier.
2. If necessary, mark the mounting holes on the mounting base, then drill holes with a
diameter of 8.5 mm
3. Screw-mount (M8 screws) the rack onto the carrier.
4. Strip the grounding conductor (Cu braid, for example) and functional ground (FG), then
crimp on an M8 ring cable lug.
5. Fasten the grounding conductor 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.
6. Connect the opposite end of the grounding cable to ground potential.
Note
Ensure adequate equipotential bonding.
52
Rack and grounding cable
you can use...
M6 cylinder head screw according
to ISO 1207/ISO 1580
(DIN 84/DIN 85)
M8 hexagonal head screw according
to ISO 4017 (DIN 4017)
Insulated cable, conductor cross-
section: min. 4 mm
mm.
±0.2
Description
Select the screw length to match your
setup.
You also need 8.4 mm washers
according to ISO 7092 (DIN 433)
You also need an M8 ring cable lug and
an M8 spring lock washer
2
Operating Instructions, 03/2013, A5E00335544-08
ET 200pro distributed I/O system