© Intesis Software S.L. - All rights reserved
This information is subject to change without notice
IntesisBox
®
is a registered trademark of Intesis Software SL
URL
Email
tel
http://www.intesis.com
[email protected]
+34 938047134
3 / 5
IntesisBox
®
LG-AC-MBS-4/8/32/64
Installation Manual
Connections
________________________________________________________________________________________
Notes:
1.
Must use NEC Class 2 or Limited Power Source (LPS) and SELV
rated power supply.
If using DC power supply:
Respect polarity applied of terminals (+) and (-). Be sure the voltage applied is within the range admitted (9 to 30 Vdc).
The power supply can be connected to earth but only through the negative terminal, never through the positive terminal.
If using AC power supply:
Make sure the voltage applied is of the value admitted (24 Vac). Do not connect any of the terminals of the AC power
supply to earth, and make sure the same power supply is not supplying any other device.
2.
Modbus connection. Only one Modbus connection type can be used simultaneously, Modbus TCP, Modbus RTU EIA485, or Modbus RTU
EIA232, this must be configured within LinkBoxMB software.
Modbus TCP: Connect the cable coming from the Modbus TCP master device to the connector ETH of IntesisBox, use a crossover
Ethernet CAT5 cable if connecting directly to the Modbus TCP master device, or a straight Ethernet CAT5 cable if connecting to a
switch or hub of the LAN of the building. If connecting using the LAN of the building contact the network administrator and make
sure that TCP/IP traffic and the TCP port used (502 by default) are allowed through all the LAN path.
Modbus RTU EIA485: Connect the EIA485 bus to the connector Modbus RTU EIA485 of IntesisBox. Respect the polarity.
Remember the characteristics of the standard EIA485 bus: maximum distance of 1200 meters, maximum 32 device connected,
and a 120 ohms terminator resistor in each end of the bus. IntesisBox comes with an internal bus biasing circuit which incorporates
internal bus terminator resistor, and thus if you connect IntesisBox in one end of the bus then it is not necessary to install additional
120 ohms resistor in that end.
Modbus RTU EIA232: Connect the serial EIA232 cable coming from the Modbus RTU master device to the Modbus RTU EIA232
connector of IntesisBox, this is a male DB9 connector (DTE) in which only lines TX, RX and GND are used, see pinout details in
the user's manual. Respect the maximum distance of 15 meters for this EIA232 line.
3.
LG AC system’s connection through (PMNFP14A0, PMNFP14A1 or PHNFP14A0) EIA485 interface board or Outdoor Unit PI485
connection. Connect the EIA485 bus of LG boards to the connector LG PI485 of IntesisBox. Respect the polarity. Remember the
characteristics of the standard EIA485 bus: maximum bus distance of 1200 meters, maximum 32 devices in the bus, and a
termination resistor of 120 ohms in each end of the bus. IntesisBox incorporates and internal circuit for bus biasing with termination
resistor incorporated, so if IntesisBox is installed in one of the ends of the bus it is not necessary to connect an additional termination
resistor in that end.
4.
Use the software LinkBoxMB to configure IntesisBox. Consult the user's manual for details.
Modbus RTU
master EIA232
See Note 2
Modbus RTU
master EIA485
See Note 2
Console.
Standard cable 1.8 m.
DB9 female - DB9 male.
Supplied with IntesisBox.
LinkBoxMB
Only for configuration
See Note 4
To Power supply
See Note 1
Modbus TCP
master
See Note 2
PC Console
- +
Ethernet
Modbus TCP
+ -
IntesisBox
®
www.intesisbox.com
Ethernet
RJ45
EIA232
EIA485
- +
Modbus RTU
EIA232
EIA485
To LG Interface
EIA485
See Note 3
CMN 24Vac
9 - 30Vdc
Max.125 mA
24Vac
Max.127mA
50-60Hz
LG PI485
