
3-11
SIMATIC 545/555/575 System Manual
Installing 505 System Hardware
3. Insert wires as appropriate for your power supply module, and tighten
screws to no more than 5 in–lb (0.56 N–m) torque. Figure 3-5 shows the
location of the power connector screws on the module. (Consult Section
2.8 for grounding guidelines.)
DC POWER GOOD
AC LINE
AC NEUTRAL
GROUND
Siemens
SIMATIC
505
Power connector
screws
505-6660
Figure 3-5 Series 505 Power Connector
4. If you have the PPX:505–6663 power supply, insert the chassis ground,
DC–, and DC+ line wires into the socket on the power supply. This
power supply requires 24 VDC.
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