Siemens SIMATIC NET RUGGEDCOM RST2228 Equipment Manual page 39

Installing the device
2.5.2 Connecting main power
3.
30
Failure to securely tighten the captive screws can result in an electrical arc if
the connector is accidentally removed.
NOTICE
Screw-type terminal block connections
When connecting wires to a screw-type terminal block plug, note the following:
• Screw-type terminal plugs features Phillips screws and compression plates,
allowing either bare wire connections or crimped terminal lugs.
• Use M3.5 ring tongues that have short insulated ring terminals with a
maximum distance of 5 mm (0.2 in) from the ring center to the insulation.
Note
When determining cable lengths, make sure the nominal input voltage for the
power supply is provided at the input power terminal.
For more information, refer to the
[https://support.industry.siemens.com/cs/ww/en/ps/24744/man].
Connect the power source to the power terminal block plug.
a. Connect the line wire to the positive terminal
b. Connect the ground wire to the chassis/ground terminal
c. Connect the neutral wire to the negative terminal
4
1
3 5
European-style (Euroblock) terminal block plug
1
Screw-type terminal block plug
2
Positive terminal for PS1
3
Chassis/ground terminal for PS1
4
Negative terminal for PS1
5
Positive terminal for PS2
6
Chassis/ground terminal for PS2
7
Negative terminal for PS2
8
Figure 2.12 PS1 and PS2 terminals
"RUGGEDCOM Modules Reference Manual"
7
6 8
.
3 6
.
4 7
.
5 8
4 7
3 5 6 8
RUGGEDCOM RST2228
Equipment Manual, 10/2023, C79000-G8976-1359-19
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