Siemens LMV50 Series Manual page 104

Operating mode 4
(int LC X62)
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Building Technologies
BACS for control via analog input with the internal load controller. In principle, identical
to operating mode 3, except that the BACS delivers the predefined setpoint via analog
input 3 (SETPOINT INPUT). Terminals X62 pin 1 and X62 pin 2 can be used to make a
changeover from externally (e.g. in the event the BACS fails) from the external
predefined setpoints to the internal setpoint W1, using a potential-free contact (load
controller software version V01.50 or higher).
With a predefined setpoint via DC 0...10 V signal, voltage – in the case of changeover
to the internal setpoint W1 – must be separated from input X62 pin 2.
(SET POINT INPUT)
Predefined setpoint
0/2...10 V
or
0/4...20 mA
Figure 50: Operating mode 4 with load controller
Basic Documentation LMV5...
7 Boiler controller / load controller
Input 3
X62.1
X62.2
Internal
load controller
X62.3
X62.4
AZL5
Heat
demand
CC1P7550en
22.05.2018