11
7.2. Power Cable
1
2
3
4
5
1
2
3
4
5
Power In
Power Out
0 V
Pin 1
0 V
Pin 1
0 V
Pin 2
0 V
Pin 2
Pin 3
Pin 3
24 V max. 9 A
Pin 4
U
System/Sensor
24 V max. 9 A
Pin 4
24 V max. 9 A
Pin 5
U
Digital I/O
24 V max. 9 A
Pin 5
The 7/8" plug is designed for a maximum current of 9 A per pin. This must be taken into account when looping
the supply voltage.
The connection box must be connected to a power supply of 18 to 32 V DC. The U
System/Sensor
supplies the
connection with voltage and the U
Digital I/O
provides the power supply of the Digital I/O ports.
The voltage of U
System/Sensor
must not be switched off during ongoing operation and hence must not be con-
ducted via emergency stop circuits, since otherwise the connection box will not be able to participate in the
communication.
Measures must be taken in all cases to ensure that the supply voltage, measured at the remotest partici-
pant, does not fall short of the system supply voltage of 18 V DC.
To be complied with in reactive operation:
If the power supply of the Digital I/O ports is merged with the voltage supply of the connection box, there
will then be the risk of a communication disruption in the event of a short-circuit on the I/O devices.
7.3. Functional Earth
The FE connection is on the lower front edge of the connection box. To ensure proper functioning in accor-
dance with the EMC regulations specified in the data sheet, we recommend using our ground strap, which is
included in the scope of delivery (for tightening torque see “Mounting Instructions” on page 9).
Содержание ZAI02PN0 Series
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