Siemens LMV27.100x2 User Manual

37/219
Building Technologies Basic Documentation LMV27... CC1P7541en
7 Basic unit LMV27 17.12.2018
7.3.2 Burner flange X3–03, pin 1 and 2
End switch burner flange (component of safety loop).
LMV...
Bild 274e/1010
X3-03
End switch burner flange
(component of safety loop)
“L” for end switch burner flange
Flange
2
1
Figure 14: Burner flange X3-03
For error diagnostics and parameters, refer to chapter Safety loop.
7.3.3 Input for external load controller (ON / OFF) X5–03, pin 1
When the external control loop is closed, the internal input message Heat request is
generated.
A heat request exists when the external load controller signal is pending and, depending
on the configuration, a load controller calls for heat (refer to chapter Connection of load
controllers).
When there are no more requests for heat, the burner shuts down. The fuel valves are
closed, either immediately when the timer has elapsed, or when the low-fire position is
reached, depending on the parameter settings (refer to chapter End of operating
position).

Note
Burner startup takes place only when this contact is closed.
LMV...
Bild 275e/1010
X5-03
External load controller (On / Off)
External load controller OPEN / stage 2
“L” for controller
On / Off
1
Figure 15: Inputs for external load controller ON / OFF X5-03
7.3.4 Inputs X5–03 pin 2 and 3 (Opening / Closing or stage 2 /
stage 3)
Inputs for connection of an external load controller with contact outputs (refer to chapter
External load controller via contacts X5-03, pin 2 and 3).
LMV...
Bild 275e/1010
X5-03
External load controller (On / Off)
External load controller OPEN / stage 2
“L” for controller
On / Off
1
Figure 16: Inputs external load controller Open / Close X5-03

Siemens LMV27.100x2 Specifications

General

Brand	Siemens
Model	LMV27.100x2
Category	Controller
Language	English