OJ Electronics AHC-3000-HMI-35T, Инструкция по эксплуатации, Страница: 11 / 68

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Installation on a flat surface
The back cover of the HMI is equipped with a keyhole-shaped
opening which can be used to hang the unit on a flat surface
(see Fig. 1). Use a screw that is a maximum of 3.5 mm in diameter
with a head no longer than 9 mm.
Installation in a wall box/panel front
If HMI-35-T is to be installed in a wall box or panel front, the back
cover must be removed. First detach the front cover by gently
releasing the catch on the bottom of the unit with a flat screwdriver
and then tipping the cover outwards (see Fig. 2).
Once the front cover has been detached, remove the two screws
holding the back cover in place (see Fig. 3).
Now detach the back cover can now be detached and refit the
front cover. The baseplate is equipped with several screw holes.
The dimensioned drawing (see Fig. 4) can be used as a drilling
template. Secure the baseplate with at least two screws tightened
to a torque of max. 0.8 Nm.
The installation depth is 20 mm.
CABLE CONNECTION
AHC-3000 is connected to the AHC-3000 Master by means of
a Modbus cable. The Modbus cable can be connected to the
HMI-35-T by means of the RS485 port or four single-wire screw
terminals. Which ones are used does not influence the available
functions or operation. See Figures 5 and 7.
Modbus RS485
Connect the Modbus cable to the Modbus port for HMI-35-T on
the AHC-3000 Master and to the corresponding screw terminals
on the HMI-35-T (see Fig. 6)
RS485 Screw terminals
1 +24 V IN
2 GND
3 Bus “B”
4 Bus “A”
5 +24 V IN
6 GND
AHC-3000-HMI-35T English