Siemens SINAMICS S220

Connection to the 24V busbars
The SITOP PSU400M provides an output voltage for the 24 V supply of the Smart Line Module via
the "+" and "–" terminals.
Table 9-5 OUTPUT DC: Output-side connection(24V) of the SITOP PSU400M
OUTPUT DC Terminal Technical data
+ positive Screw terminals:
Outputs "+" and "-", PE
- negative
Connectable cable cross-sections 0.2mm
2
- 2.5mm² (󹪝nely stranded) (AWG 24...12)
Tool Slotted screwdriver(0.6x3.5)/
cross-tip screwdriverPH1/
cross-tip screwdriverPZ1
Tightening torque 0.5 - 0.6Nm (lbf in)
Note
At the power supply output, you must connect the ground potential to the protective conductor
system (PELV). The cross-section of this connection must be at least as large as the cross-section
of the 24 V conductors.
More information
More information about connecting the device is provided on the internet:
SITOP PSU400M Manual (https://support.industry.siemens.com/cs/ww/en/view/59038719)
DC link components
9.2SITOP PSU400M
Booksize power units
250 Equipment Manual, 09/2023, A5E53307519B AA