Siemens SIMATIC NET RUGGEDCOM RX1512 Installation Manual page 22

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RUGGEDCOM RX1512
Installation Manual, 04/2021, C79000-G8976-1057-20
Note
For secure, reliable connections under severe shock or vibration, use M3.5 ring
lugs with a maximum outer diameter of 7 mm (0.28 in). Make sure no bare
metal is exposed beyond the safety cover.
Connect the positive wire from the power source to the positive (+) terminal on
the terminal block.
Connect the negative wire from the power source to the negative (-) terminal on
the terminal block.
Install a jumper between the surge ground terminal and chassis ground
terminal. The surge ground terminal is used as the ground conductor for all
surge and transient suppression circuitry internal to the unit.
Using a #10 ring lug and #10-32 screw, secure a ground wire (or bond point) to
the chassis ground connection on the device. Make sure the lug is tightened to
1.1 N·m (9.5 lbf·in).
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#10 Ring Lug
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#10-32 Screw
2
Connection from External Power Source
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Chassis Ground Connection
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Figure 2.6 Chassis Ground Connection
Install the safety cover over the terminal block. This is mandatory for 48 VDC
and -48 VDC power supplies.
2.5.1 Connecting Low DC Power
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Installing the Device
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