Operating Mode 1 (Extlc X5-03) - Siemens LMV51 Series Basic Documentation

Operating mode 1
(ExtLC X5-03)
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External load controller.
In this operating mode, an external load controller (e.g. RWF40...) is used. The internal
control algorithm is not active.
The internal temperature limiter function can be activated.
The external load controller must have 3 contact outputs which - as shown below -
must be connected to the LMV5... basic unit.
External
load controller
ON / OFF
or
stage 1
CLOSED
or
stage 3
OPEN
or
stage 2
Special case: BACS as control via a contact
External
BMS
load controller
ON / OFF
or
stage 1
ON/OFF
CLOSED
or
stage 3
OPEN
or
stage 2
Basic Documentation LMV5...
6 Temperature or pressure controller (internal load controller LC)
Basic unit LMV51...
X5-03
Terminal
ON/OFF
Evaluation
Terminal
contact checkback
network
3
Terminal
2
7550b07e/0704
Basic unit LMV51...
X5-03
Terminal
Terminal
Evaluation
contact checkback
network
3
Terminal
2
Demand for heat BC (BU)
CLOSED or stage 3 FARC (BU)
OPEN or stage 2 FARC (BU)
Demand for heat BC (BU)
CLOSED or stage 3 FARC (BU)
OPEN or stage 2 FARC (BU)
7550b08e/0704
CC1P7550en
13.08.2004