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Fault signalling
9 Fault signalling
Flame failure during flame proving period 1 t
Flame failure during burner 1 operation
Flame failure during safety time 2
Flame failure during flame proving period 2
Flame failure during burner 2 operation
Too many restarts for burner 2
Controller enable output (terminal 56)
Simultaneous activation (terminals 51 and 52)
Actuator wiring (terminals 52 – 55)
Actuator feedback (terminal 52)
Simultaneous Min./Max. bus command
Non-fail-safe parameters (NFS) inconsistent
Fail-safe parameters (FS) inconsistent
BCU 580 · Edition 11.15l
DISPLAY
Fault message (blinking)
Burner 1 flame simulation
No flame after safety time 1
FS1
Burner 2 flame simulation
Too many remote resets
Too many restarts
Mains voltage
Faulty parameterization
Incompatible bus module
Power module defective
Fuse defective
Description
01
Flame simulation/flame signal before ignition
02
No flame formation to end of 1
03
04
Flame failure during operation
05
Flame simulation/flame signal before burner 2 start
06
No flame formation to end of 2
07
08
Flame failure during operation
10
Remote reset activated > 5 × in 15 min.
11
> 5 restarts in 15 minutes
12
> 5 restarts in 15 minutes
Controller enable output incorrectly connected/supplied with power from an external
20
source
"Maximum capacity" and "Ignition capacity" position feedback from butterfly valve
21
set simultaneously
22
Faulty wiring of terminals 52 to 55
23
Maximum or ignition capacity is not constantly signalled back to terminal 52
24
"Open actuator" and "Close actuator" bus signals set simultaneously
30
NFS parameter range is inconsistent
31
FS parameter range is inconsistent
32
Operating voltage too high/low
33
Parameter set contains illegal settings
35
36
Relay contact error
39
Device fuse F1 is defective
st
safety time
nd
safety time
▼
51
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