External Predefined Load, Multistage; External Setpoint Changeover; External Setpoints Or Predefined Load Via Digital Modbus / E-Bus Interface - Siemens LMV51 Series Basic Documentation

External predefined load,
multistage
External setpoint
changeover
External setpoints or
predefined load via digi-
tal modbus / e-bus inter-
face
84/301
Siemens Building Technologies
HVAC Products
Stage 1
I (mA) 5
U (V) 2.5
Detection of short-circuits and open-circuits of lines is ensured - similar to the sensor
inputs.
In operating mode 2 (intLC), changeover between the 2 internally defined setpoints W1
and W2 can be accomplished by means of an external (potentialfree) contact.
The settings described under «Input 3» can also be made from a BACS connected to
the AZL5... via RS-232 and bus interface.
Parameter:
LC_OptgMode (intLC o.DDC / extLC o.DDC)
An external predefined setpoint via modbus / e-bus exists with «Int LC bus».
An external predefined load via modbus / e-bus exists with «Ext LC bus».
Basic Documentation LMV5...
6 Temperature or pressure controller (internal load controller LC)
Stage 2 Stage 3
10 15
5 7.5
CC1P7550en
13.08.2004