Fundamental Safety Instructions; Operator's Obligation To Exercise Diligence - Beckhoff C9900-G00 Series Manual

2.3

Fundamental safety instructions

The following safety instructions must be observed when handling the push button extensions.
Application conditions
• Do not use the push button extensions in extreme environmental conditions.
• Never use the push button extensions in hazardous areas.
• Never carry out any work on the push button extensions when they are live. Always switch off the
supply voltage for the device before replacing device components or rectifying malfunctions.
• Never plug or unplug connectors during thunderstorms. There is a risk of electric shock.
• Ensure that the device has a functional earth connection.
Damage to property, loss of data and impairment of functions
• Ensure that only technical personnel trained in control and automation engineering operate the push
button extensions. Use by unauthorized persons can lead to damage to property and loss of data.
• Protect the power supply cable with a fuse with a max. rating of 16 A. The fuse serves to protect the
supply line in the event of a short circuit.
• If it should catch fire, extinguish the push button extensions with powder or nitrogen.
2.4

Operator's obligation to exercise diligence

The operator must ensure that
• the products are used only for their intended purpose (see Chapter 2.2 Intended use [} 6]).
• the products are only operated in sound condition and in working order.
• the products are operated only by suitably qualified and authorized personnel.
• the personnel is instructed regularly about relevant occupational safety and environmental protection
aspects, and is familiar with the operating instructions and in particular the safety instructions contained
herein.
• the operating instructions are in good condition and complete, and always available for reference at the
location where the products are used.
C9900-G00x and C9900-G02x Version: 2.0
For your safety
7