Siemens LMV50 Series Manual page 122

External predefined load,
multistage
External setpoint
changeover
External setpoints or
predefined load via
digital interface
122/327
Building Technologies
Stage 1
I (mA) 5
U (V) 2.5
The detection of short-circuits and line interruptions is ensured – similar to the sensor
inputs.
In operating mode 2 (intLC), changeover between the 2 internally defined setpoints W1
and W2 can be implemented by means of an external (potential-free) contact.
The settings described under Input 3 can also be made from a BACS connected to the
AZL5 via RS-232 and bus interface.
An external predefined setpoint exists with Int LC bus.
An external predefined load exists with Ext LC bus.
Parameter LC_OptgMode (intLC o.DDC / extLC o.DDC)
Basic Documentation LMV5...
7 Boiler controller / load controller
Stage 2 Stage 3
10 15
5 7.5
CC1P7550en
22.05.2018