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Building Technologies Division
Basic Documentation LME7...
CC1P7105en
Infrastructure & Cities Sector
15 PME73.810...
29.11.2011
15.4 Time table and settings for program sequence PME73.810...
Type
Times in seconds
PME73.810...
tw
TSA
max.
t1
P225
4)
min.
t3
P226
min.
t3n
P257
approx.
t4
P230
min.
t8
P234
5)
min.
t10
P224
approx.
t11
P259
approx.
t12
P260
approx.
1) 2) 3)
td1
td2
min.
td3
td4
max.
Requirement 2.5
3
30
6
2.5
9
15
15
300
300 --- --- ---
10
3
Factory setting
---
t3n+0.45 29.106+2.1 6.174 2.205+0.3 9.408 19.404 13.818 300.762 300.762 --- --- --- 10.29 2.646
Max. 2.5
14
1237+2.1 37.485 13.23+0.3 74.97 1237 13.818 1237
1237 1
0.45
0.45
37.485
2.646
Min. ---
---
0+2.1
1.029 0+0.3 3.234 0
0
0
0 0.3 0.3 --- 1.029 0
Step size
---
---
4.851
0.147
0.147
0.294
4.851 0.294 4.851 4.851 --- --- --- 0.147 0.147
Function parameter
Parameter number
Factory setting
Repetition in the event of lost of flame during operation
<2: None
= 2: 1 x
P240 0
Valve proving
0: Inactive
1: Active
P241.00 1
Valve proving
0: During prepurge time
1: During postpurge time
P241.01 1
Valve proving
0: According to P241.01
1: During prepurge time and postpurge time
P241.02 0
Actuator position during prepurge time and postpurge time
0: Purging in low-fire
1: Purging in high-fire
P515 1
Legend
tw
Waiting time
t10
Specified time air pressure switch state message (timeout)
TSA Safety
time
t11 Opening
time of actuator (timeout)
t1
Prepurge time
t12
Closing time of actuator (timeout)
t3 Preignition
time
t3n
Postignition time (P257 +0.3 seconds)
td1
Test atmospheric pressure
t4
Interval: End safety time - load controller release
td2
Test gas pressure
t8
Postpurge time
td3
Test space filling
td4
Test space evacuating
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
4)
Minimum time td1 + td2 + td3 + td4 if: Parameter P241.00 = 1 (ON, after mains ON, with lockout, P234 (postpurge time) = 0 (postpurging) or P241.01 = 0
5)
Minimum time td1 + td2 + td3 + td4 if: Parameter P241.00 = 1 (ON) and P234 (postpurge time) >0 (postpurging) and P241.01 = 1