Instructions For Esd Protection; Installation On Mounting Rails; Fig. 21 Spring Contacts Of The Beckhoff I/O Components - Beckhoff EL72 1-901 Series Manual

4.5

Instructions for ESD protection

Destruction of the devices by electrostatic discharge possible!
The devices contain components at risk from electrostatic discharge caused by improper handling.
• Please ensure you are electrostatically discharged and avoid touching the contacts of the device directly.
• Avoid contact with highly insulating materials (synthetic fibers, plastic film etc.).
• Surroundings (working place, packaging and personnel) should by grounded probably, when handling
with the devices.
• Each assembly must be terminated at the right hand end with an EL9011 or EL9012 bus end cap, to en-
sure the protection class and ESD protection.
Fig. 21: Spring contacts of the Beckhoff I/O components
4.6

Installation on mounting rails

Risk of electric shock and damage of device!
Bring the bus terminal system into a safe, powered down state before starting installation, disassembly or
wiring of the bus terminals!
EL72x1-901x
NOTE
WARNING
Version: 1.9
Installation
37