Danfoss SonoMeter 40 Installation Manual page 10

Installation guide
Wiring diagram 3
Design with changeable
temperature sensors, LoRa interface
and 24V power supply module.
The 24V power supply module is
mounted on the battery holder and
connected to the B1 connector of
the meter.
A backup battery is connected to
the BAT connector of the module.
The 24V power cable is connected
to the "24V" terminals of the
module (connections are made
before mounting the module, as
the connectors and terminals are
on the other side of the module).
The LoRa interface module is
connected to the 24V power supply
module connector by an additional
connection cable.
Numbering of calculator terminals
Terminal N. Description
5, 6 High temperature sensor (T1)
7, 8 Low temperature sensor (T2)
50 Common terminal for 2nd additional pulse input/output (GND)
2nd additional pulse input/output (In/Out2)
51
(Volume output for TEST mode)
52 Common terminal for 1st additional pulse input/output (GND)
1st additional pulse input/output (In/Out1)
53
(Energy output for TEST mode)
24, 25 M-bus data lines (bipolar)
Numbering of M-bus communication module terminals
Terminal N. Description
24, 25 M-bus module (bipolar)
Numbering of MODBUS and BACnet communication module terminals
Terminal N. Description
60, 61 12-24 V DC power supply voltage for MODBUS and BACnet (bipolar)
90 MODBUS or BACnet Line +
91 MODBUS or BACnet Line -
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SonoMeter 40
AN384648824392en-010102