Siemens Scalance X204-2 Multimode, Installation Instructions Manual, Page: 5 / 32

Siemens Industry, Inc.
Building Technologies Division P/N 315-050537-3 5
ELECTRICAL RATINGS
All connect All connect All connect All connect All connections are supervised and power ions are supervised and power ions are supervised and power ions are supervised and power ions are supervised and power limit limit limit limit limited unless st ed unless st ed unless st ed unless st ed unless stat at at at ated otherwise. ed otherwise. ed otherwise. ed otherwise. ed otherwise. The The The The The
fiber fiber
fiber fiber fiber switc
switc
switc switc switch ma
h ma
h ma h ma h may be connect
y be connect
y be connect y be connect y be connected to a PSC-1
ed to a PSC-1
ed to a PSC-1 ed to a PSC-1 ed to a PSC-12 (P/N 31
2 (P/N 31
2 (P/N 31 2 (P/N 31 2 (P/N 315-033060),
5-033060),
5-033060), 5-033060), 5-033060), or
or
or or or P
P
P P PAD-3 (P/N 31
AD-3 (P/N 31
AD-3 (P/N 31 AD-3 (P/N 31 AD-3 (P/N 315-
5-
5- 5- 5-
099082) or 099082) or
099082) or 099082) or
099082) or P P
P P
PAD-4 (P/N 31 AD-4 (P/N 31
AD-4 (P/N 31 AD-4 (P/N 31
AD-4 (P/N 315-05021 5-05021
5-05021 5-05021
5-050217) for 7) for
7) for 7) for
7) for power power
power power
power.....
Input Voltage: Regulated 24VDC
Input Current: 265mA @ 24VDC
Connecting to Siemens Power Supply and Building Management System
Remove all system power before installation, first battery and then AC.
(To
power up, connect the AC first and then the battery.) Figures 8 and 9 show the
general layout of the PAD-3 and PAD-4 main board, respectively. This section also
provides specific wiring details to the Siemens UL approved power supply. Consult
your control unit manual for specific wiring information on the control unit being
used.
Figure 8
PAD-3-MB Layout
AUXILIARY POWER OUTPUT
3A MAX., 18-28 VDC
SUPERVISED, POWER LIMITED
COMMON TROUBLE
RELAY CONTACT
TB2