25
Chapter 4. How This Device Operates
z
False flame
If the start input turns ON while the flame signal is detected, the device transitions
to false flame detection status (
PE
). The device shifts out of false flame detection
status (
PE
) if the flame signal or the start input turns OFF.
PE
PF
Start input
Flame signal
Flame output
(with start check)
Flame output
Flame relay N.C. output
Input
Display
Output
7-segment display
Start ON
Flame detection
No flame detected
Operation
Operation of this device
SHUT
LED
FL
LED
7-seg.
Start input OFF
All relays are OFF.
-
-
Flame signal input
If a flame signal is detected, relays K7 and K8 turn ON.
z
-
-
Start input ON
Flame monitoring starts (false flame detected).
z
PE
Flame signal OFF
Relays K7 and K8 turn OFF and the device continues monitoring the flame.
PF
z
: Lit,
: Off,
: Blinks
PE
Start input
Flame signal
Flame output
(with start check)
Flame output
Flame relay N.C. output
Input
Display
Output
7-segment display
Start ON
Flame detection
Start OFF No flame detected
Operation
Operation of this device
SHUT
LED
FL
LED
7-seg.
Start input OFF
All relays are OFF.
-
-
Flame signal input
If a flame signal is detected, relays K7 and K8 turn ON.
z
-
-
Start input ON
Flame monitoring starts (false flame detected).
z
PE
Start input OFF
The device transitions to controlled shut down status, and only relays K7
and K8 are ON.
z
-
-
Flame signal OFF
Relays K7 and K8 turn OFF.
-
-
z
: Lit,
: Off,
: Blinks
Содержание AUR355
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