Control Unit - elco VECTRON Betriebsanleitung

Function
Control unit SG 513
Operating diagram
Blink-code
No flame signal at end of safety time.
I IIII
II III Unauthorised flame detected during the pre-ventilation/pre-ignition
time.
III II Pressure switch: Contact fails to close within defined time period.
IIII I Pressure switch: Contact opens at startup or during operation.
Pressure switch not in rest position, e.g. due to fused contact.
II III
Flame goes out during operation.
IIII I
Manual safety shutdown (refer also to locking procedure).
II III — IIIII
Code
I
I
—
Required Input signals
Output signals
Temper. controller Pressure control device Burner motor
1 Activation of control unit, motor and servomotor
2 Testing of air pressure
3 End of pre-ventilation
4 Activation of transformer and end of
pre-ventilation phase
Press button ... leads to ...
"R"
for ...
... less than 9 Unblocking or
seconds... blocking of the

control unit

... between 9 Delete the
and 13 statistics of the
seconds... control unit
... more than 13 No effect
seconds... on control unit
Cause of malfunction
Note
Short light signal
Long light signal
Pause
Gas valve Regulation Ignition transf. Flame monitor
5 Activation of gas valve
6 Flame check
7 Activation of SM and gas valve, followed by burner
operation
0 Regulator shutdown - burner stopped
10 Malfunction mode
03/2005 - Art. Nr. 13 018 104A
The SG 513 gas 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.
Servomotor (SM) fault
tlw Waiting period of pressure switch
tlk Opening time of servomotor and discharge of
pre-ventilation
tr Shutting time of servomotor
tvz Pre-ignition time
ts Safety valve
tv2 Minimum time between fuel valve 1 and 2
EN
Unblocking
31