IBC
BCU - Siemens Electronic Type
● For burner fitted with Siemens electronic Burner Control Unit (BCU)
● The PLC is connected to the BCU via RS485 interface for communication
● On-line burner “Operating Stage” and “Fault Code” achievable from BCU
● Burner fault description translated from the BCU “Fault Code” when activated
Siemens Burner Control Unit (BCU) |
LMV52… |
LMV51…
|
LMV2… LMV3… |
LME39… LME7… |
PLC / BCU interface |
RS485 / RS232 |
RS485 / RS232 |
RS485 / OCI412 |
RS485 / OCI412 |
Communication protocol |
MOD Bus |
MOD Bus |
MOD Bus / BCI |
BCI |
Current fuel type for dual fuel burner |
Dry contacts |
Dry contacts |
Dry contacts |
Dry contacts |
Burner off / restart and firing control |
BCU Internal |
BCU Internal |
via MOD Bus |
Dry contacts |
On Screen Display |
|
|
|
|
BCU “Operating Stage” number |
● |
● |
● |
● |
Burner operation graphical imitation |
● |
● |
● |
● |
Air damper actuator position |
● |
● |
● |
○ |
Current fuel actuator position |
● |
● |
● |
- |
Flame trimming actuator position |
● |
● |
- |
- |
FGR damper actuator position |
● |
● |
- |
- |
Air fan motor speed via VSD/VFD |
● |
- |
- |
○ |
Air temperature |
● |
○ |
○ |
○ |
Flue gas temperature |
● |
○ |
○ |
○ |
Flue gas O2 content |
● |
○ |
○ |
○ |
Combustion efficiency |
● |
○ |
○ |
○ |
Burner output (%) |
● |
● |
- |
- |
BCU internal burner start counter |
● |
● |
● |
● |
Flame intensity signal (%) |
● |
● |
● |
● |
Burner fault code with description |
● |
● |
● |
● |
● standard
○ separate transmitter required; - not available