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Chapter 3. Operation
Part names
When a lock-out occurs, a alarm code is displayed automatically.
When an alarm occurs, the sequence code and alarm code issued when the lock-out
occurred are displayed alternately.
ID display
Item
Notation
•
Product number
AUR890xxxx
•
Voltage
xxx Vac
•
Flame detector (UV sensor)
UV
(Flame rod)
Ionization
•
Timing display
Ignition trial
IGT xx s
Flame failure response time
FFRT xx s
Operation
z
Reset switch *
Lock-out is canceled when the reset switch is pressed and held for 1 s.
*
After the lock-out is canceled, a stabilization time of approximately 5 seconds
should be maintained.
During the stabilization time, no start input can be accepted.
z
DISP switch
During normal operation
The 7-segment display shows a sequence code.
Every time the DISP switch is pressed, the display is changed between the sequence
code and flame voltage alternately.
Sequence codes
Code
Description
P
1
Start check
P3
Ignition standby
P4
Lock-out timing
P5
Steady combustion standby
P8
Steady combustion
−−
Stop
Reset switch
Switch to cancel lock-out
(Press and hold for approximately 1s)
Retaining screw for AUR890 main unit
7-segment LED (green)
When normal: Sequence code/Flame voltage
When an error occurs: Alarm code/Flame voltage
DISP switch
Switch to change as follows:
Flame voltage/Sequence code or
Flame voltage/Alarm code
Flame LED (green)
On during flame signal is detected.
Off when flame signal is not detected.
ID display
Front connector
Flame voltage output (0–5 V)
Jack *
* Not used
(for adjustment before shipment)
Retaining screw for AUR890 main unit
ALARM LED (red)
Lit during lock-out.
Off when there is no lock-out.
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Содержание AUR890 Series
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