Honeywell BCU 460 Technical Information page 75

Project planning information
Input bytes (BCU ➔ master)
Byte 2 Display
C3
7
3
7
08
8
A8
*
C4
8
4
8
P0
9
P
9
10 10
11 1
A
12
30
30
31
31
33
33
Fuse F1 defective or safety interlocks
51
51
52
52
53
53
88
99
* Display on BCU..L upon activation of the air valve during program step x
** FS = input/output, safety circuit, NFS = input/output, control system
 = standard,  = available
BCU 460, BCU 465 · Edition 03.16l
Status signal
Byte 0, Bit 2 = 0
Operation, main burner
Purge
EEPROM data change, NFS**
EEPROM data change, FS**
Faulty parameterization
discontinuity
Permanent remote reset
Timing cycle too short
Fault signal
Byte 0, Bit 2 = 1
Fault Position indicator during flame proving period
Fault Air supply during flame proving period
Flame failure during main burner operation
Fault Position indicator during operation
Fault Air supply during operation
Fault Air supply during purging
Too many remote resets
Fault Air supply during pre-ventilaton
Fault Air supply during post-ventilation
Internal error/negative flame current




 

 


 
 
 
 
 
 
 
75