Siemens LME73.000A2 - Page 6

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Building Technologies Division Basic Documentation LME7… CC1P7105en
Infrastructure & Cities Sector Contents 29.11.2011
5 Dimensions.................................................................................................... 37
6 Function......................................................................................................... 38
6.1 Preconditions for burner startup .................................................................... 38
6.2 Undervoltage ................................................................................................. 38
6.3 Controlled intermittent operation ................................................................... 38
6.4 Control sequence in the event of fault ........................................................... 39
6.5 Resetting the burner control .......................................................................... 39
6.6 Limitation of repetitions (can be parameterized) (depending on
parameter 240) ..............................................................................................40
6.6.1 Parameter 240/240.00................................................................................... 40
6.6.2 Parameter 240.01.......................................................................................... 40
7 Operation, indication, diagnostics..................................................................41
7.1 Operation....................................................................................................... 41
7.2 Indication of operating state .......................................................................... 41
7.3 Diagnostics of cause of fault.......................................................................... 42
8 Inputs/outputs ................................................................................................44
9 Basic unit ....................................................................................................... 45
9.1 Description of inputs and outputs .................................................................. 45
9.2 Digital input.................................................................................................... 46
9.2.1 Safety Loop X3–04, terminal 1 and 2 ............................................................ 46
9.2.2 Input for external controller (ON/OFF) X5–03, terminal 1.............................. 46
9.2.3 Air pressure switch X3–02............................................................................. 47
10 PME71.401.................................................................................................... 48
10.1 Program sequence PME71.401... .................................................................48
10.2 Connection diagrams for fuel train applications (examples).......................... 50
10.2.1 Gas direct ignition (G), 1-stage...................................................................... 50
10.2.2 Gas direct ignition (G), 2-stage...................................................................... 50
10.3 Time table and settings for program sequence PME71.401... ......................51
10.4 LME71.000..: Inputs and outputs/internal connection diagram .....................52
10.5 Parameter list PME71.401... (AZL2...)........................................................... 53
11 PME71.402.................................................................................................... 55
11.1 Program sequence PME71.402... .................................................................55
11.2 Connection diagrams for fuel train applications (examples).......................... 57
11.2.1 Gas direct ignition (G), 1-stage...................................................................... 57
11.2.2 Gas pilot ignition 1 (Gp1/1), 1-stage.............................................................. 57
11.3 Time table and settings for program sequence PME71.402... ......................58
11.4 LME71.000..: Inputs and outputs/internal connection diagram .....................59
11.5 Parameter list PME71.402... (AZL2...)........................................................... 60