Oilon GP-6.10 P Operating And Maintenance Instruction Manual - page 29
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40180036GB
8.3. Control Program under Fault Conditions and Lockout Indication
In the event of fault conditions, the fuel supply is always interrupted immediately and,
simultaneously, the sequence switch stops and thus the lockout indicator. The symbol appearing
above the reading mark indicates the type of fault.
No start
, because contacts has not been closed between terminals 12 and 4 or 4 and 5.
Lockout during or after completion of control program sequence due to extraneous light
(e.g. flame not extinguished, leaking fuel valves, fault in flame supervision circuit or
similar.)
Beginning of pre-purge period in control program. As symbol no meaning in the event of
fault.
P
Lockout
because the air pressure signal has not been received at the start of the air
pressure check.
Any air pressure failure after this point in time also causes the
control unit to go to lockout!
n
Lockout
due to a fault in the flame supervision circuit.
End of pre-purge period in control program. As symbol no meaning in the event of fault.
1
Lockout
, because no flame signal has been received on completion of the safety time.
Any flame signal failure after completion of the safety time also causes the control
unit to go to lockout.
2
2
nd
safety time of control program. Not in use. As symbol no meaning in the event of
fault.
│
Lockout
,
because the flame signal has been lost during burner operation.
When lockout occurs, the control can be reset immediately. After resetting (and also after the
correction of a fault which resulted in a controlled shutdown, or after each mains failure), the
sequence switch always runs through to its start position, whereby only terminals 7, 9, 10 and 11
receive voltage in accordance with the control programme. It is only then that control unit
programmes a new burner start-up.
Note!
Do not press the lockout reset button longer than 10 seconds.
1 Reset button
CAUTION!
-
Control unit is a safety device. It is therefore not permitted to open, interfere with or
modify the unit.
-
Control unit must be completely isolated from the mains before performing any work on it.
-
Check all safety functions when putting the unit into operation or after having
replaced any fuses.
-
Neither in operation nor during maintenance work may water drip onto the control unit
.