Operating Mode 2 (Intlc); Operating Mode 3 (Intlc Via Bms) - Siemens LMV51 Series Basic Documentation

Operating mode 2
(intLC)
Operating mode 3
(intLC via BMS)
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Internal load controller.
In this operating mode, the load controller inside the LMV51... 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 septoints W1 and W2.
X62.1
Internal
load controller
X62.2
= W1
= W2
AZL
CAN module
(basic unit)
Manipulated
Demand for
variable
0...100 %
FARC (BU) BC (BU)
BMS as control via CAN bus with the internal load controller.
The internal load controller is connected via the AZL51... and an external e-bus interface
with a BMS. The BMS 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 BMS fails), triggered via a
potential-free contact (from software version V01.40 or higher).
load controller
Setpoint
e-bus
BMS
e-bus
Interface
CAN module
(basic unit)
Manipulated
variable
0...100 %
FARC (BU)
Basic Documentation LMV51...
5 Temperature or pressure controller (internal load controller LC)
CAN bus
Manipulated variable,
demand for heat
Manipulated variable,
demand for heat
heat
Setpoint
Internal
Manipulated variable,
demand for heat
Setpoint
AZL
Manipulated variable,
demand for heat
Demand
for heat
BC (BU)
CAN bus
CC1P7550en
29.05.2002