Siemens LMV52.200A2 User Manual

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Siemens Building Technologies Basic Documentation LMV5... CC1P7550en
HVAC Products 6 Temperature or pressure controller (internal load controller LC) 13.08.2004
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 han-
dled.
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).
AZL5...
CAN module
(basic unit)
FARC (BU)
Demand
for heat
BC (BU)
Manipulated variable,
demand for heat
Manipulated variable,
demand for heat
CAN bus
7550b03e/0704
Setpoint
Setpoint
Manipulated
variable
0...100 %
Internal
load controller
Setpoint
Modbus /
e-bus
BMS
Jack X72
X62.1
X62.2
Operating mode 2
(intLC)
Operating mode 3
(int LC bus)

Siemens LMV52.200A2 Specifications

General

Brand	Siemens
Model	LMV52.200A2
Category	Control Unit
Language	English