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Profibus DP – CBF-B1/CBFF-B1 Burner Control Box
vor00161
Fault
Error / Cause
Check / Solve
“d2” flashing DPS does not switch at start-up (only
Flame mode CBFF-B1)
Air valve open and connected? Air vol-
ume too low? Check delta-p.
Set correct nominal value? Pipes
blocked? DPS defective?
“d3” flashing DPS does not switch during flame
stabilizing period (only Flame mode
CBFF-B1)
see above
“d4” flashing DPS does not switch during opera-
tion period (only Flame mode CBFF-
B1)
see above
“d5” flashing DPS does not switch during FLOX
mode (only CBFF-B1)
see above
“dP” flashing DPS does not switch during air purge
(only CBFF-B1), error is displayed
but purging continues
see above
“FF” flashing Failure in FLOX/Flame switching
No switching within 1 second or con-
current signals for FLOX or Flame
mode
Check FLOX/Flame control signals
(short circuit may cause this)
Check respond time (<1 sec.)
check voltage
after fault repair system must be reset
Attention: FLOX/Flame control signals
are safety relevant: be very careful while
repairing, risk of explosion!
“51“ flashing
Faulty fuse F1, short circuit in valve
or ignition circuit, safety interlock in-
terrupted
Check ignition transformer and solenoid
valves, exchange fuse (3,15A slow H) if
problem cannot be resolved send box to
vendor for evaluation.
“52“ flashing
Permanent remote reset, CBF is
constantly resetting
Check bus signal for remote reset max. 5
resets in 15 min allowed, after that reset
only possible at control
“53“ flashing
Cycle time too short, min. ON and
OFF times too short
Maintain min cycle times , min ON and
OFF times
“54” flashing Manual mode: FLOX locked / FLOX
temperature not reached, burner can
not be started manually in FLOX
mode
FLOX activation signal not active, wait
until temperature > 850°C
Check switch for FLOX mode, check fur-
nace temperature