Burner Control; Description Of Inputs And Outputs; Flame Signal Input And Flame Detector X10-01 And X10-03; Self-Test Function Lmv / Qri - Siemens LMV51 Series Basic Documentation

Flame signal input and
flame detector
X10–01 and X10–03
Self-test function
LMV / QRI
Technical data
flame supervision
QRI (suited for
continuous operation)
Connection diagram
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HVAC Products
3

Burner control

3.1 Description of inputs and outputs

This chapter describes the basic characteristics of the burner control's inputs and
outputs. For the valuation of the inputs and activation of the outputs, refer to the
«Sequence diagrams».
The following connection facilities are provided:
· QRI... (infrared flame detector) for continuous or intermittent operation
· Ionization probe for continuous or intermittent operation
· QRB... flame detector for intermittent operation only
When using the QRB..., continuous operation is not possible!
Signal
<
5 V
voltage
Self-test
21 V
voltage
Operating
14 V
voltage
Test time
400-600 ms
The self-test function of the QRI... is triggered by increasing the supply voltage to the
level of self-test voltage.
During the following test time, the signal voltage at the output of the QRI... changes to zero
so that the LMV51... will receive the anticipated flame OFF signal as a reply to the test.
If the behavior is correct, operation is continued until the next test cycle is reached.
The test cycle is dependent on the parameterization of the LMV51... .
Note: All measured voltages refer to connection terminal N (X10–02, terminal 4).
Supply voltage operation / test at terminal POWER QRI...
(X10–02, terminal 2)
Minimum signal voltage required at terminal FSV / QRI...
(X10–02, terminal 6)
SIEMENS
Landis & Staefa
QRI
Made in Germany
For detailed information, refer to Data Sheet 7719.
Basic Documentation LMV51...
3 Burner control
< 100 %
t
t
7550d20E/0502
black
blue
brown
7719a01E/0502
approx. DC 14 / 21 V
display flame approx. 50 %
LMV...
X10-02 / 6
X10-02 / 4
X10-02 / 2
+
0...10 V
Ri > 10 MW
DC 3.5 V
CC1P7550en
29.05.2002