Lamtec LT 2 Assembly And Commissioning Manual page 43

4 Technical Description
Functions A,B,C,D
Parameters: 1031 to 1034
1041 to 1044
.....
1091 to 1094
State
Parameters:
1039/1049/.../1099
Relay module for the output of the digital outputs
Relay module
Type 657 R 0857
For electrical connection
diagram, see section
10.3.1.
The four functions have virtually the same structure, and an operating state can act as
a switching criterion. If a limit value (LV 1-4) is selected as a switching criterion, the
output switches when the limit value output is enabled. If, for example, maintenance is
chosen as the switching criterion, the output is not in the idle state during
maintenance.
Each function (A, B, C, D) may have all operating states as the switching criterion, but
the assignment of the limit values LV 1-4 or test gases to the individual functions is
limited. Limit value 1 and test gas 1 are only possible with function A, limit value 2 and
test gas 2 with function B, etc. Nevertheless, thanks to the OR logic of the four
functions, all combinations can be set.
The following operating states can be selected as switching criteria:
• Off
• Warning
• Fault
• Calibration
• Check
• Cold start
• Measurement
• Standby
• Maintenance
• Limit values 1 – 4
• Probe 1
• No measurement
• CO signal
This parameter indicates the current switching state. Changing the parameter in
Diagnostic mode allows the output to be switched manually.
The following optional equipment is included with delivery:
• Load-dependent and fuel-specific limit values/limit curves
• PID/O2 controller
• Blow-out device
• Ejector version
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