25
40180036GB
8.2. Control Program of the Sequence Switch
Control outputs
from terminals
Lockout indication
a - b
start-up sequence
b
operation
b - a
post-purge sequence (reset of control unit)
Switching times (in seconds) of the control program of the sequence switch
t1
Pre-purge time
36
t2
1
st
safety time
2
t3
Pre-ignition time
4
t4
Interval between beginning of t2 and release of voltage at terminal 19
10
t5
Interval between end of t4 and release of voltage at terminal 20
10
t6
Post-purge time *)
12
t7
Interval between start-up command and release of voltage at terminal 7
2
t9
2
nd
safety time *)
2
t10
Interval from start-up to beginning of air pressure check
8
t11
Running time for air damper to OPEN position *)
optional
t12
Running time for air damper to MIN position *)
optional
t13
Permissible after-burn time
12
t8
Duration of start up without t11 and t12
60
*)
Not in use on these burner types
Switching times in seconds in the sequence of the burner start-up are valid for frequency of
50 Hz. For 60 Hz frequency, switching times are reduced by approx. 20 %.
Summary of Contents for GP-6.10 P
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