Soft Starting Function - Siemens SIPLUS HCS Series Operating Instructions Manual

9.3.3

Soft starting function

Operating principle
Soft starting can be parameterized for activating the channels in order to control loads with a
high inrush current. This parameterization is performed for each POM and applies to all
channels of the POM. Soft start means that the channels when turned on with a certain
number of half-waves are controlled with phase angle control before being switched to half-
wave operation or phase angle control.
Figure 9-3
Note
The disturbances caused on the supply cables by the soft starting are to be filtered on the
line side. For suitable filters, see the note in the section Phase angle control (Page 134).
During a soft start, we distinguish between two procedures: the "defined soft start" (3
versions) as well as the "adaptive soft start".
SIPLUS HCS4200 PROFINET/PROFIBUS DP
Operating Instructions, 07/2019, A5E35066204A/006
Soft starting function
Functions
9.3 Power output control
135