Intesis
TM
INMBSPAN001A000
User’s Manual r1.
3 EN
© HMS Industrial Networks S.L.U. - All rights reserved
This information is subject to change without notice
URL https://www.intesis.com
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Figure 2.1
INMBSPAN001A000 connection diagram
2.
Connection
The interface comes with a specific cable and connector to establish direct connection with the
Aquarea
H Generation’s
system. It comes as well with a plug-in terminal block of 2 poles to
establish direct connection with the Modbus RTU EIA-485 network.
2.1
Connection to the Hydro unit
To connect the INMBSPAN001A000 interface with the Hydro unit, these steps must be followed:
Disconnect Mains Power from the Hydro unit. Open the front cover of the Hydro unit to have
access to the electronic circuit. Once the electronic circuit is reached, locate the socket
connector marked as
CN-CNT.
Take the cable that comes with the interface, insert one of its connectors (the one installed in
the shortest uncovered part) into the socket of the INMBSPAN001A000, and the other connector
(the one installed in the largest uncovered part) to the socket
CN-CNT
of the Hydro unit's
electronic circuit. You can place the INMBSPAN001A000 inside or outside the Hydro unit
depending on your needs. Remember that the INMBSPAN001A000 must also be connected to
the Modbus RTU EIA-485 network. Close the Hydro unit's front cover again to finish the
connection.
Do not modify the length of the cable supplied with the interface, it may affect the correct
interface´s operation.
2.2
Connection to the EIA-485 bus
Connect the EIA-485 bus wires to the plug-in terminal block of INMBSPAN001A000 and keep
the polarity on this connection (A+ and B-). Make sure that the maximum distance to the bus is
1,200 meters (3,937 ft). Loop or star typologies are not allowed in the case of the EIA-485 bus.
A terminator resistor of 120
Ω
must be present at each end of the bus to avoid signal reflections.
The bus needs a fail-safe biasing mechanism (see section 4.6 for more details).
CN-CNT
Hydro unit
Internal control board
200 mm / 7.9”
40 mm / 1.6”
Connection cable
supplied with the
interface.
Fixing screw
90 mm / 3.5”
MODBUS RTU
EIA-485
Bus
EIA485
A B
Hydro
Unit
53 mm /
2.1”
For wall mounting,
extract the upper
and lower staples
until you hear the
"click".
Use these holes to
attach the cable
using the staple and
screw provided.