Reference Manual

Unit Description, BFU-21 and BFU-22
P008642A
+
-
-
B
FU
-2
2
Figure 116 BFU-22
The BFU has the following external interfaces:
•
Battery
• RBS DC distribution
• TM supply 50 A (only BFU-22)
• TM1 supply 15 A (only BFU-21)
• TM2 supply 15 A (only BFU-21)
• EC supply 2 A (only BFU-21)
• EPC bus
18.3.1 Indicators and Buttons
On the front panel there are four indicators (see the following table) and
four switches.
Table 134 Indicators
Indicator
Colour
Fault Red
Operational Green
EPC bus fault
Yellow
Battery disconnected Yellow
Switches on BFU-21:
• Battery Disconnect - on/off
• DC out 1 - on/off
• DC out 2 - on/off
• EC - on/off
Switches on BFU-22:
208 (485)
EN/LZT 720 0008 P2A
2001-11-28
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