Operating Instructions

Appendix D: Programming
Siemens Building Technologies, Inc. 183
Appendix D: Programming
Bypassing the SED2
There are applications demanding
maximum motor output. Additionally,
there are applications requiring a SED2
bypass system for safety reasons. For
these cases, the SED2 has an integrated
bypass function.
Parameter setup for bypass
function (commissioning)
P1260, Source of changeover control
Defines the possible sources for changing
over to bypass/contactor operating mode.
Possible settings:
0=Bypass disabled (factory setting).
1=Controlled by SED2 trip.
2=Controlled by DIN, see P1266, Bypass
command.
3=Controlled by DIN and SED2 trip.
4=Controlled by SED2 frequency.
5=Controlled by SED2 frequency and
SED2 trip.
6=Controlled by SED2 frequency and
DIN.
7=Controlled by SED2 frequency and DIN
and SED2 trip.
SED2
Mains supply
Motor starters
Mechanical
interlock
5192Z25en
Figure 48. Bypassing the
SED2.