elco VECTRON L 04.410 DUO, Operating Instructions Manual

Page: 21 / 48

21 05/2005 - Art. Nr. 13 018 078A
Function
Automatic control unit SH 213
Blink-code Information / Cause of malfunction
x y y y y
No flame signal at end of safety time.
x x y y y
Unauthorised flame detected during the
pre-ventilation/pre-ignition time.
x y y y y
No flame signal at the end of safety time.
x x y y y
If an unauthorised flame is detected during the
pre-ventilation/pre-ignition time.
x x y y y
—
y y y y y
Manual safety shutdown (refer also to locking procedure).
Code
x
y
—
Note
Short light signal
Long light signal
Pause
The SH 213 fuel-oil control unit controls and
monitors the forced-draught burner. The
microprocessor-controlled program sequence
ensures the maximum consistency of the time
periods involved, regardless of fluctuations in the
power-supply voltage or ambient temperature. The
design of the automatic unit protects it from the
effects of brownouts. Whenever the supply voltage
drops below its rated minimum level, the control
unit shuts down - even if no malfunction signal has
been emitted. The control unit switches itself back
on again once the voltage has returned to normal
levels.
Information system
The built-in visual information system keeps you
up-to-date regarding the causes of any safety
shutdown. The most recent cause of a malfunction
is logged, and the information can be reconstructed
on startup of the system - even if there has been a
power failure in the meantime. In the event of a
malfunction occurring, the LED indicator in the
"Reset" button (
R ) lights up and stays permanently
lit until the fault has been acknowledged (i.e. until
the error has been cleared or the control unit fault
has been dealt with).
The light pauses every ten seconds to emit a
blink-code designed to indicate the cause of the
malfunction. It is possible, using the display
program (available as an accessory), to obtain
further in-depth information on the system's
operating and malfunction procedures.
Locking and unlocking the system
The automatic unit can be locked (corresponding to
a malfunction) and unlocked (cleared) by pressing
the "Reset" button (
R ), provided the system is
connected to the power supply.
If the button is pressed during normal or startup
mode, the device goes into malfunction mode. If
the button is pressed with the system in
malfunction mode, the automatic unit is
unblocked.
m
Always disconnect the power supply before
installing or removing the automatic unit. DO
NOT attempt to open the automatic unit, as
there are no user-serviceable parts inside.
Press R
during ...
... leads to ...
... less than 9
seconds... Unlocking or
locking of the
control unit
... between 9 and
13 seconds.... Delete the statistics of
the control unit
... More than 13
seconds... No effect on the
control unit
Required input signals
Output signals
Temperature controller Pre-heater Burner motor Fuel-oil valve Regulation Ignition transformer Flame monitor Servomotor SM Fault Unlocking
1 Activation of automatic unit (and of pre-heater)
2 Activation of burner motor and ignition
transformer servomotor moves to full-load
position
3 Servomotor switches back to partial load
4 Activation of fuel-oil valve
5 Flame check
6 Shutdown of ignition transformer, burner
operation part-load
7 Burner operation, regulation between part and
full load
0 Regulator shutdown
10 Malfunction mode
tw Pre-heater waiting time
tlk Opening time of SM, pre-ventilation and
pre-ignition
tr Shutting time of SM
ts Safety time
tn Post-ignition time
tv2 Minimum time between fuel valve 1 and 2
EN