Power Supply - Siemens SIMATIC MICRO-DRIVE Equipment Manual

Product overview

2.3 Power supply

2.3 Power supply
Infeed points
You supply the PDC at the logic unit (1L+, 2L+) and power unit (4L+) infeed points with the
following voltages:
Table 2- 1 Supply voltage of PDC
Infeed point Nominal supply
voltage
Logic unit 24 V DC
1L+, 2L+
Power unit 24 to 48 V DC
4L+
When energy recovery is activated, a supply voltage above 50.4 V DC (maximum value
1)
56.6 V) is also permitted. Use a suitable bi-directional supply to ensure that the voltage at 4L+
never exceeds 60 V DC during operation or under fault conditions. It is essential that you
observe the information on recovery in the section "Energy recovery" in the system manual
SIMATIC MICRO-DRIVE Drive controller PDC
(https://support.industry.siemens.com/cs/ww/en/view/109774126).
Use separate power supply units to supply the logic unit and the power unit or a filter
between the shared power supply unit and the power supply.
16
Static supply
voltage
20.4 to 28.8 V
18.5 to
50.4 V DC
1)
WARNING
Dynamic supply Maximum voltage
voltage under fault condi-
tions (power supply)
for maintaining
electrical and func-
tional safety
18.5 to 30.2 V Max. 42.4 V
Non-periodic over-
voltage max. 35 V
for max. 500 ms
with a recovery
time of 50 s
18.5 to 50.4 V DC Max. 60 V
1)
Fusing
Internal fusible link, not
replaceable by user.
Fusing on installation
side necessary for
through-wiring!
Two-pole miniature
circuit breaker
Equipment Manual, 03/2021, A5E50502703-AA
PDC100(F)