USER HANDBOOK 1.0 | DC2115, ET2115
Berghof Automation GmbH | Harretstrasse 1 | 72800 Eningen | www.berghof.com
21-0099-82-00-00-003 | 270010900_Anwenderhandbuch_DC-ET2115_EN.docx
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2.
Safety
Safety-related systems
The use of PLC in safety-related systems requires specific measures. Wherever a PLC is to be used in a safety-
related system, the user must be given comprehensive advice by the PLC manufacturer in addition to infor-
mation on any available standards or regulations regarding safety installations.
Before starting any work on devices, switch off all power feeds, including to peripherals.
Keep all ventilation holes unobstructed.
Failure in certain components in an electronic control system may result in uncontrolled and/or unpredicta-
ble operational behaviour.
All types of failure must be considered at the system level and the associated preventative measures
identified.
If necessary, request information from your automation system provider.
2.1. Safety instructions
The device may be operated only when it is in good working order. Exposed sharp edges pose an injury risk.
If you discover damage to the front glass of the device, do not continue to operate the device. Immedi-
ately disconnect it from the power supply.
Working on the device
Do not start work on the device until all necessary safety precautions have been taken. Take precautions to
avoid unforeseeable functional events and movements of the system.
1.
Bring the system into a safe condition.
2.
Switch the system and the device off.
3.
Secure the system against being switched on again.
4.
Disconnect the device from the system.
The housing of the device must not be opened.
If work on the internal parts of the device is necessary, contact the manufacturer (see "Addresses").