41
20148653
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LED indicator and special function
8.1
Description of LED lamps
Tab. P
8.2
Check mode function
By means of the reset button on-board the flame control, it is
possible to use a control function during start-up phases. (pre-
purging, ignition, 1st safety time and 2nd safety time).
This function, indicated as CHECK MODE, is designed to
facilitate checking the phases of the burner and of the safety
devices monitored by the flame control.
This function is particularly useful during the burner first
commissioning or during maintenance.
To enable the check mode function:
•
keep the reset button pressed, see chapter 8 for more details,
for at least 3 seconds, the status LED changes from green to
yellow to signal that the control device is in check mode.
•
the control device locks out during pre-purging, after a
timeout of max 30 minutes the flame control will automatically
exit the check mode function.
•
check mode has a 2 minute timeout during the 2nd safety
time. When it ends, the flame control goes back to the normal
operating status.
•
check mode has a 2 minute timeout during the MTFI status.
When it ends, the flame control goes back to the normal
operating status.
•
During the check mode 1st or 2nd safety time, the flame
signal level can be indicated by the 5 central LEDS on the
flame control central panel, which turn on proportionally.
Each lit LED (starting from the flame LED) represents 20% of
the signal power.
To exit the check mode function, press the reset button; the
flame control will go back to the normal operating mode.
8.3
Flame control lock-out or emergency stop condition
The RFGO control device can be locked out (emergency stop) at
any time during the operating cycle and unlocked when already
locked (lock-out) by simply pressing the key on the front panel or
by means of the terminal T21 on the support base.
8
LED indicator and special function
Fan
It turns on when the fan motor is powered (T6) and blinks when RUN/CHECK switch is set to
“CHECK” during damper movement phases, PTFI AND MTFI.
Damper
open
It blinks when the air damper is moving towards the maximum opening position until the
position-reached feedback sent by the servomotor is received, then it stays steadily on for the
time set by the flame control.
Damper
closed
If blinks when the air damper is moving towards the minimum opening position until the
position-reached feedback sent by the servomotor is received, then it stays steadily on until the
end of the pre-purging time.
Auto
It indicates that the burner is ready for the output modulation.
Ignition
It blinks during the ignition phase (1st safety time) and stays steadily on during the MTFI.
Flame
It blinks during the first safety time and stays steadily on if the flame detection has been
correctly performed.
Alarm
It turns on in red when a lock-out condition occurs.
Together with the other indicators, it indicates the type of fault during the lock-out phase.
Together with the other LEDs, it indicates the operating status during the normal cycle.
S9740
S9741
S9742
S9743
S9744
S9746
Содержание RLS 100
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