OJ Electronics OJ-AIR2-HMI-20T Bedienungsanleitung Seite 6

OJ-AIR2-HMI-20T
INSTALLATION
The HMI is intended to be mounted in a wall socket. The HMI
should be mounted on the wall approx. 1.5 m above the floor
in such a way as to allow free air circulation around it. Draughts
and direct sunlight or other heat sources should be avoided. The
baseplate is equipped with multiple screw holes. Please use the
drill template for guidance; see fig. 7. The baseplate should be
fastened by a minimum of two screws tightened to a max. torque
of 0.8 Nm.
CONNECTION OF MODBUS
You can connect the HMI to an OJ Air2 Master using a Modbus
cable. The Modbus cable can connect to the HMI by a RJ12
6P4C connector or four single wires. There is no difference to the
features or behaviours of the device using either RJ12 6P4C or
screw terminals.
Modbus RJ12 6P4C
The Modbus cable is connected to an OJ Air2 Master RJ12 port
RS485 A and the RJ12 6P4C port on the HMI; see fig. 3.
RJ12
1
2
3
4
5
6
Modbus Screw terminals
The Modbus cable can be connected to an OJ Air2 Master RJ12
port RS485 A and the corresponding screw terminals on the HMI;
see. fig. 5 and 6.
Text
+24
GND
"Bus A"
"Bus B"
+24V Out
0-10V in
6
Description
+24V (optional)
GND
Bus "B"
Bus "A"
+24V
GND (optional)
Description
+24V supply for Modbus
GND
Bus A for Modbus
Bus B for Modbus
+24V supply (< 500mA)
Not in use
© 2017 OJ Electronics A/S
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