36
11 Cold start thermal shock (CSTP)
If there is a steam boiler or a boiler that must start up cold in the plant and to avoid thermal shocks a slow heating is required for the boiler by maintaining
the burner at the minimum output, the automatic function “Cold start thermal shock” can be performed instead of the manual operation at minimum load.
The CSTP (Cold Start Thermal Schock) function can be enabled by the Technical service only (access by reserved password). if this function is enabled,
when the burner starts up the “Thermal shock protection activated” message will be shown.
If this function is not enabled, after start-up, the burner will rapidly increase the load according to the requested value.
The CSTP function is a Service level paramter, to enable this function proceed as follows:
1st level
2nd level
3rd level
4th level
5th level
6th level
Description
Params & Display
Menu level for making the parameter
settings
LoadController
Settings for the internal load controller
ColdStart
Settings for the cold start (thermal shock
protection)
ColdStartOn
Deactivated
Activated
The parameter
ColdStartOn
deactivates
or activates the Cold start protection
function, the other parameters are factory
set and can be changed following the next
programming rows (see diagram)
ThresholdOn 0...100%Wcurren
20%
StageLoad 0..100%
15%
StageSetp_M od
1...100% Wcurrent
5%
Stage- Setp_Stage 1...100% Wcurrent
5%
MaxTme- Mod
1...63 min
3 min
MaxTmeStage
1...63 min
3 min
Cold start thermal shock protection,
maximum time per step (multistage)
ThresholdOff 1...100%
Wcurrent
80%
Cold start thermal shock protection
deactivation level referred to the current
set-point (Wcurrent)
Additional-Sens
Deactivated
Pt100
Pt1000
Ni1000
Deactivated
Select extra sensor for cold start thermal
shock protection
Temp Cold- Start
0…2000 °C
Display of temperature acquired by extra
sensor for the cold start thermal shock
protection function
Setpoint AddSensor 0...450 °C
60°C
Set-point for extra sensor for cold start
thermal shock protection
Release Stages
no release/ release
release
Cold start thermal shock protection load
step stage mode (multistage operation)
MaxTmeStage
1...63 min
3 min
Cold start thermal shock protection,
maximum time per step (multistage)
ThresholdOff 1...100%
Wcurrent
80%
Cold start thermal shock protection
deactivation level referred to the current
set-point (Wcurrent)
AdditionalSens
deactivated Pt100
Pt1000 Ni1000
deactivated
Select extra sensor for cold start thermal
shock protection
Temp Cold- Start
0…2000 °C
Display of temperature acquired by extra
sensor for the cold start thermal shock
protection function
Setpoint Add- Sensor 0...450 °C
60 °C
Set-point for extra sensor for cold start
thermal shock protection
Release Stages
no release/ release
release
Cold start thermal shock protection load
step stage mode (multistage operation)
Summary of Contents for HTLX92R
Page 57: ...Siemens LMV5x Service Manual M12920CC rev 2 1 08 2017...
Page 64: ...8...
Page 68: ...12 2 2 LMV5x program structure...
Page 95: ...39...
Page 102: ......
Page 103: ......
Page 104: ...Note Specifications and data subject to change Errors and omissions excepted...
Page 106: ...Annex1 Example for motor cable...
Page 107: ......
Page 108: ...Annex 2 Example for sensor cable...
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