Siemens SIMOCODE pro - Page 101

Parameters
4.2 Motor control
SIMOCODE pro - Parameterize
Operating Manual, 04/2017, A5E40507630002A/RS-AA/001
101
Safety guidelines
Note
At least one additional digital module is required for this control function.
Note
Two current settings must be set for the pole
-changing starter:
•
I
s
1 for the SLOW speed
•
I
s
2 for the FAST speed.
Depending on the current range, the current can in many cases be directly measured at both
speeds with a single current transformer. Otherwise you will need two external current
transformers appropriate for the relevant s
peed (e.g. 3UF18 with a 1 A secondary
transformer rated current), whose secondary cables must lead through the current
measuring module within the range 0.3
to 3 A. The current setting I
s
1 or I
s
2 must be
converted according to the secondary currents of the
external transformers. For more
information, see Chapter
Overload protection (Page 34).