51/245
Building Technologies Division
Basic Documentation LME7...
CC1P7105de
Infrastructure & Cities Sector
10 PME71.401...
29.11.2011
10.3 Time table and settings for program sequence PME71.401...
Type
Times in seconds
PME71.401...
tw
TSA
max.
t1
P225
min.
t3
P226
min.
t3n
P257
approx.
t4
P230
min.
t8
P234
min.
t10
P224
approx.
1) 2) 3)
Requirements 2.5 3
30
2
2.5
8
0
15 ---
--- ---
Factory setting
---
t3n+0.45
29.106+2.1 2.058 2.205+0.3 8.232 0 13.818
---
--- ---
Max. 2.5
14
1237+2.1
37.485 13.23+0.3 74.97 1237 13.818 1 0.45
0.45
Min. ---
---
0+2.1
1.029
0+0.3 3.234 0
0 0.3
0.3
---
Step size
---
---
4.851
0.147
0.147 0.294
4.851
0.254
---
--- ---
Function parameter
Parameter number
Factory setting
Repetition in the event of loss of flame during operation
<2: None
= 2: 1 x
P240 0
Legend
tw
Waiting time
t3n
Postignition time (P257 +0.3 seconds)
TSA
Safety time
t4
Interval: End of safety time – load controller release
t1
Prepurge time
t8
Postpurge time
t3
Preignition time
t10
Specified time air pressure switch state message (timeout)
1)
Response time to a change of signal by the air pressure switch (opens) and response time in the event of loss of flame
2)
Response time to a change of signal by the inputs
(e.g. pressure switch-min)
3)
Flame detection time