Siemens LMS14 User Manual

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Building Technologies Division User Manual LMS14… CC1U7471en
6 The settings in detail 28.01.2015
6.34.9 Configuration
Line no. Operating line
[4378.1]
config respons LT/SLT
Start prevention
Lockout position
Response if the mechanical limit thermostat (LT)/safety limit thermostat (SLT) cuts out.
Start prevention
If the temperature limiter opens during startup, during the safety time (TSA), or during
operation, the LMS14 switches to the fault state.
Otherwise, start prevention is triggered until the temperature limiter closes again.
Lockout position
If the temperature limiter opens, the LMS14 always switches to the fault state.
In the following, every start attempt made by the burner control is counted as such.
Line no. Operating line
[3633.1]
Max StartAttemps TSA
Maximum number of start attempts for establishment of flame. Maximum number of
start attempts when – at the end of the safety time – no flame is detected. The set
value indicates the total number of start attempts.
Example:
RepCounter flame TSA = 1 (maximum number of start attempts for establishment of
flame = 1):
The burner control initiates lockout after the first start attempt when – with a heat
request pending – there is no establishment of flame at the end of the safety time
(TSA). If a new start attempt shall be made (no repetitions), the value must be set to 2.
RepCounter flame TSA
= 4 (maximum number of start attempts for establishment of
flame = 4):
The burner control initiates lockout after the fourth start attempt when – with a heat
request pending – there is no establishment of flame at the end of the safety time
(TSA).
Note!
This repetition counter is also an indication of the behavior of the system when the
gas pressure switch responds during the safety time.
config respons LT/SLT
Max StartAttemps TSA

Siemens LMS14 Specifications

General

Brand	Siemens
Model	LMS14
Category	Control Unit
Language	English