Fast commissioning / operating principle
Leuze electronic
MA 258
i
11
TNT
35/7-2
4
V
3.3.1
Connecting the Leuze device
To connect the Leuze device to the internal RS 232 device interface, open the housing
of the MA 258
i
and lead the corresponding device cable (see chapter 14.6) through the
middle threaded opening.
Connect the cable to the internal device interface (
X30
,
X31
or
X32
,
Use rotary switch
S4
(see chapter 8.2.5) to select the connected device.
Now screw the PG cable gland into the threaded opening to provide strain relief and
ensure protection class IP 65.
Attention!
Only then may the supply voltage be applied.
Upon startup of the MA 258
i
, the device selection switch is queried and the gateway
automatically sets itself to the Leuze device.
Connecting functional earth FE
Ensure that the functional earth (FE) is connected correctly.
Unimpaired operation is only guaranteed when the functional earth is connected properly.
All electrical disturbances (EMC couplings) are discharged via the functional earth connec-
tion.
3.3.2
Connecting the power supply and the bus cable
Ideally, use the ready-made cables listed in chapter 14.4.3 to connect the gateway to the
power supply via the
PWR IN
connection.
The ready-made cables listed in chapter 14.5.4 are preferred for connecting the gateway
to the fieldbus via the
HOST / BUS IN
connection.
If applicable, use the
BUS OUT
connection if you would like to construct a network with
linear topology.
3.4
Starting the device
Apply the supply v18 … 30VDC (+24VDC model); the MA 258
i
starts up.
The MS LED displays that it is ready for operation.