Leuze electronic GmbH + Co. KG
MA 238
i
10
3
Fast commissioning / operating principle
3.1
Mounting
The gateway mounting plate MA 238
i
can be mounted in two different ways:
• Using four threaded holes (M6) or
• Using two M8x6 screws on the two lateral grooves.
3.2
Device arrangement and selection of the mounting location
Ideally, the MA 238
i
should be mounted so that it is easily accessible near the Ident device in order to
ensure good operability, e.g., for configuring the connected device.
Detailed information can be found in Chapter 6.3.1.
3.3
Electrical connection
The devices from the MA 2xx
i
family feature four M12 connectors/sockets which are coded differently
depending on the interface.
The voltage supply (PWR IN) as well as the switching inputs/outputs (PWR OUT or PWR IN) are
connected there. The number and function of the switching inputs/outputs depends on the connected end
device.
An internal RS 232 interface is used for connecting the respective Leuze device. Another internal RS 232
interface functions as a service interface for configuring the connected device via a serial null modem
cable.
Figure 3.1: MA 238
i
connections
Detailed information can be found in Chapter 7.
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 238
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, see Chapter 7.5.1).
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 degree of
protection IP 65.
Finally, close the housing of the MA 238
i
.
Connecting the 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 connection.
NOTE
Below you will find a short description for the initial commissioning of the EtherCAT gateway
MA 238
i
. Detailed explanations for the listed points can be found throughout the handbook.
PWR OUT
VOUT 1
2
3
4
SWIO_2
SWIO_1
GND
FE
5
PWR IN
SWIO_1
SWIO_2
3
2
1
4
5
GND
VIN
FE
HOST / BUS IN
TD+ 1
2
3
4
RD+
RD-
TD-
LEUZE Device
BUS OUT
TD+ 1
2
3
4
RD+
RD-
TD-
M12 connector
(A-coded)
M12 socket
(A-coded)
M12 socket
(D-coded)
M12 socket
(D-coded)
ATTENTION!
Only then may the supply voltage be applied.
Upon startup of the MA 238
i
, the device selection switch is queried and the gateway automati
-
cally sets itself to the Leuze device.