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Building Technologies
Basic Documentation LMO39…
CC1P7154en
4 Type summary (other types on request)
15.03.2018
Note on parameterization:
Use the AZL2… or ACS410 to always set the exact value of the required time (multiples of increments of 0.147 seconds, 0.294 seconds or 4.851 seconds).
When parameterizing minimum or maximum times, the possibility of a ±7% tolerance must be taken into consideration.
For
min
imum values: The value to be parameterized must be at least 7%
greater
. For
max
imum values: The value to be parameterized must be at least 7%
smaller
.
Example:
Prepurge time shall be set to 30 seconds
Special case here:
The preignition time is made up of parameter 266 and a time of 5.6 seconds that cannot be parameterized.
Calculation:
30 s 7% - 5.6 seconds = 32,1 seconds - 5.6 seconds = 26.5 seconds
Value to be parameterized (parameter 266): Must be equal to or
greater
than the calculated value (e.g. 29.106 seconds)
Example:
Safety time shall be set to 5 seconds
Calculation:
5 seconds - 7% = 4.65 seconds
Value to be parameterized (parameter 267): Must be equal to or
smaller
than the calculated value (e.g. 4.557 seconds)
Legend
TSA Safety
time
t3n Postignition time
tw
Waiting time
t4
Interval between flame ON and release fuel valve 2
t1
Prepurge time
t8 Postpurge
time
t3
Preignition time
1)
Repetition (maximum number of startups per controlled start)
