Siemens LME7 Series Basic Documentation

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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

Siemens LME7 Series Specifications

General

Brand	Siemens
Model	LME7 Series
Category	Controller
Language	English