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Burner Control CBR
Fault displayed on CBR by flashing red LED and following fault Code:
Fault Display Fault / Cause Check / Resolution
F 57
External FLOX/Flame switching fault
XOR signals not present at FLOX and
flame terminals → with external
FLOX/flame release (without
thermocouple
F 58
Timeout manual operation
CBR turns to status
F 58
(manual state 1
or 2) after 15 minutes of continuous
operation in manual mode, After reset the
box is in state
F 7
(state 3). The state
must then be changed back to automatic
mode (state 0). See fault display
F 7.
F 59
Profibus fault
The connection with the Profibus master
interrupted; Profibus IC defective or
missing
F 5
Temperature supervision (optional)
Thermocouple fault /
Burner head / exhaust gas temperature
Thermocouple not connected properly,
Positive and negative leads switched;
Thermocouple defective
F 5C
Combustion chamber thermocouple
fault
(Dual thermocouple fault)
{Phase correct connection of the
CBR is essential. Otherwise power my
be connected to the compensating wire
– danger of electrocution!
The dual thermocouple for the CBR is
defective;
The temperature deviation between both
elements is too large;
Faulty thermocouple connection;
Positive and negative leads switched;
Thermocouples fail the cyclical test →
ground fault or both elements are
touching; influence of signal converter
F 5
Ambient temperature fault
The ambient temperature surrounding the
CBR is too high
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