Azbil AUR450C - Flame Failure Sequence

3-7
Chapter 3. OPERATION
z Flame failure
If a flame failure is detected during Run, the system is locked out and an alarm is
output.
On the device, E5 (flame failure) and P5 are displayed alternately.
-- P1 P2 P3 E5
/
P5P4 P5
K7
K1
K2
K3
K4
K5
K6
POWER
SHUTTER
FLAME
ALARM
START
IG
PV
MV
Flame Failure
Response Time
Pre-purge Standby Start
check
Ignition trial Pilot Stabilization Main trial RUN Flame
failure
Lockout
Power supply
Burner start contacts
Interlock
Flame signal
Input
Relay output
Ignition transformer
Interrupted pilot valve
Intermittent pilot valve
Main valve
Flame monitor output
Alarm output
Load output
Sequence display
LED display