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DC link components
7.2 SITOP PSU400M
7.2.2
Supported operation conditions
The following two operation conditions are supported when using the SITOP PSU400M. The
precharging relay must be closed directly after the drive lineup has run up as the SITOP PSU400M
represents a load for the DC link precharging resistors (equipped with PTCs). The DC link voltage
collapses as a consequence.
First operation condition
AC Power On
Smart Line Module
Enable
SITOP LOAD
Figure 7-2
Condition:
• Environment: 40 °C line voltage: 400 V
• Drive system capacitance: 10 mF
• Module status: cold
Note
T_delay is the permitted system startup time, less than 45 s.
Operation condition
106
on
off
Enable
Disable
T_delay
8 A
0 A
Time diagram
T_delay
600 s
Equipment Manual, 01/2022, 6SL3097-6AC30-0BP0
t
Booksize power units
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