Siemens BC8001A - Page 10

BC8001A Installation and Operating Instruction
Page 9/49
BC8001A
Main board
OC 24- N+ N- D1 24- D2 24- P S
BCB8004
Power supply
24V+I 24V- I 24V-II24V+II CCFBFPPF
BAT+
BAT-
CG
L N GND
24V+ 24V- 24V-24V+ CCFBFACF COM
120/240VAC
12VDC*2
24VDC
400-2000ohm
24VDC@1.5A
To Field Devices
Figure 3 System Wiring Diagram
Terminal description
Name(label) Description Name(label) Description
24V+ 24V output1 OC OC output
24V- 24- OC output ground
24V+ 24V output2
* internally connected with 24V output1
N+ NAC +
24V- N- NAC -
PPF Primary power fault D1 Dry contact1
BF Battery fault 24- Dry contact1 ground
CCF Charging circuit fault D2 Dry contact2
COM Common ground for BF, CCF, PPF 24- Dry contact2 ground
P Detection Bus P line
S Detection Bus S line