Siemens LMV5 Series Basic Documentation

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Siemens Building Technologies Basic Documentation LMV51... CC1P7550en
HVAC Products 6 Temperature or pressure controller (internal load controller LC) 01.10.2003
Internal load controller.
In this operating mode, the load controller inside the LMV5... is used (standard application).
The manipulated variable and the demand for heat are internally generated and
handled.
Terminals X62.1 and X62.2 can be used to make an external changeover between the
internal setpoints W1 and W2.
Internal
load controller
FARC (BU) BC (BU)
Manipulated variable,
demand for heat
Manipulated variable,
demand for heat
7550b02E/0302
Manipulated
variable
0...100 %
Demand for
heat
AZL
CAN module
(basic unit)
X62.1
X62.2
= W1
= W2
CAN bus
BACS as control via bus with the internal load controller.
The internal load controller is connected via the AZL5… and an external bus interface
(Modbus) with a BACS. The BACS transmits “only“ predefined setpoints to the internal
controller. This means that the actual control is provided by the internal load controller.
Terminals X62.1 and X62.2 can be used for changeover from the external predefined
setpoint to the internal setpoint W1 (e.g. in the event the BACS fails), triggered via a
potential-free contact (LC software version V01.40 or higher).
AZL
CAN module
(basic unit)
FARC (BU)
Demand
for heat
BC (BU)
Manipulated variable,
demand for heat
Manipulated variable,
demand for heat
CAN bus
7550b03E/0202
Setpoint
Setpoint
Manipulated
variable
0...100 %
Internal
load controller
Setpoint
e-bus
Interface
e-bus
BMS
Jack X72
Operating mode 2
(intLC)
Operating mode 3
(int LC bus)

Siemens LMV5 Series Specifications

General

Brand	Siemens
Model	LMV5 Series
Category	Control Systems
Language	English