Allen-Bradley 442L-SFZNMN, User Manual

Page: 63 / 108

Rockwell Automation Publication 442L-UM005B-EN-P - April 2017 63
Electrical Installation Chapter 5
Wiring in Accordance with EMC Regulations
The quality of the shield is dependent on the quality of the connection of the
screen. In principle, the best screening action can only be achieved with the
connection of the shield at both ends with large area connections.
If it is not possible to connect the screen via threaded fittings, connect the
screen physically close, for example, to a control cabinet chassis with a metal
clamp.
Functional Earth
To achieve the specified EMC safety, the functional earth FE must be
connected (for example, to the central earth star point of the vehicle or system).
Round Plug Connector
Figure 38 - Round Plug Connector
Table 9 - Pin Assignment
(1)
IMPORTANT
If there is a PE in an installation, it can be used for the connection of the
functional earth connection (FE). However, an FE is never allowed to be used
as a PE.
(1) Use the cordsets that are listed in Table 25 on page 95 to connect the SafeZone Mini device.
Pin Signal Function
1 WF Output for warning field 1
2 +24V DC Supply voltage
3 I/O1 Universal I/O
4 I/O2 Universal I/O
5 OSSD1 Output signal switching device
6 OSSD2 Output signal switching device
7 0V DC Supply voltage
8 FE/shield Functional earth/shield
Housing FE/shield Functional earth/shield
8
4
1
2
3
6
7
5