Siemens siprotec 7SA6 User Manual page 626




Figure 9-7 Power supply mini-fuse CPU board
Table 9-1 Assigning of the mini-fuse rating to the device auxiliary voltage rating
7SA6∗∗∗ Version
–2∗∗∗∗–∗∗∗∗
–4∗∗∗∗–∗∗∗∗
–5∗∗∗∗–∗∗∗∗
o
o
Reassembling the
Device
o
o
o
o
Rated Auxiliary Voltages
24 V to 48 V—
60 V to 125 V—
110 V to 250 V—, 115 V
Install the new fuse into the holder.
Carefully install the I/O board I/O-1 in the case. The insertion locations
are indicated in Figures 8-9 and 8-10 in Sub-section 8.1.3.
To reassemble the device:
Connect the ribbon-cable between the I/O board and the CPU board. Be
especially careful not to bend any of the connector pins! Do not use force!
Make sure the connectors latch.
Plug the plug-connector of the ribbon-cable between the CPU board and
the front panel of the device onto the plug-connector of the cover. Be es-
pecially careful not to bend any of the connector pins! Do not use force!
Make sure the connectors latch.
For the device versions with detached operator panel this activity can be
skipped. Connect the ribbon-cable from the 68-pin connector at the back
of the device to the plug-connector of the CPU board. The 7pin connector
X16 must be plugged behind the D-subminiature port. The direction in
which it is plugged is not relevant since the connection is protected
against polarity reversal.
Carefully replace the front panel being mindful of the ribbon-cables. Fas-
ten the front panel to the case with the screws.
Replace the covers.
F1
Fuse Type
T4H250V
T2H250V
∼
T2H250V
7SA6 Manual
C53000-G1176-C133-1