Siemens Simatic CFU Commissioning Manual page 34

Installation
6.3 Installing the CFU
Step
7
8
9
10
11
12
13
14
15
16
SIMATIC CFU PA bundle with aluminum enclosure (suitable for hazardous area zone 2/22)
1)
See also
Removing the CFU (Page 35)
34
Fasten the bus cable to the BusAdapter for the PROFINET
IO connection. Note the pin assignment on the BusAdapter/
plug. You can find information about this in the documenta‐
SIMATIC; Distributed I/O; BusAdapters for Distributed
tion "
I/O ".
Recommendation:
When installing the CFU in a enclosure, use cables that are
suitable for a FastConnect Ethernet connection.
You can fasten them at any time to a PROFINET BusAdapter
with a FastConnect Ethernet connection (e.g. BusAdapter
BA 2×FC).
Insert and screw the selected BusAdapter on the CFU.
Ensure that the shielded cables of the fieldbus cables are
connected correctly. You can find information on this in sec‐
tion "Connecting the field bus to the CFU (Page 121)".
If available and necessary, you can fasten the cables to the
shielding bus using cable ties.
Cable glands ensure sealing between the cables and the
enclosure. Ensure that the required reducing inserts and
blanking plugs are installed in the cable glands to seal the
enclosure.
Ensure that the pressure compensation element is correctly
installed.
Connect the BusAdapter to terminal X5 and the cables of the
power supply (PS1 to X80 / PS2 to X81). Observe the pin
assignment on the plug connector (see section "Connecting
the CFU to the PROFINET IO (Page 49)").
Fasten the grounding cable to the mounting rail or enclosure.
Tighten the cap nuts of the cable glands.
Ensure there is a strain relief for the cables outside the en‐
closure. Even when installed in the enclosure, the cable
glands do not serve as strain relief.
Check the enclosure (enclosure cover).
● Make sure the enclosure and all seals are not damaged
and correctly installed.
● Ensure that there are no foreign bodies between the
enclosure parts (e.g. between the enclosure cover and
the enclosure base).
● Close the enclosure.
CFU
Execute
Execute
Execute
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Commissioning Manual, 07/2018, A5E39252870-AC
Bundle with alu‐
minum enclo‐
sure
1)
Execute
Execute
Execute
Execute
Execute
Execute
Execute
Execute
Execute
Perform
Tighten the
screws on the
enclosure cov‐
er.
SIMATIC CFU