Safety-related Information
Operating Manual XCx 300 / 500 / 540 Version 09/08
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18.3
Configuring, Programming, Installation, Commissioning and Operation
The automation system will in most cases be a part of a larger system in which machines are controlled. When
configuring, installing and commissioning automation systems to control machines the machine manufacturer and the
user must observe the safety regulations as defined in the machinery directive 89/392/EWG. For specific applications
national accident prevention regulations such as VBG 4.0 will apply.
Safety-related components on the controlled machine must be designed such that they operate independently
from the control system. Emergency stop components must be operational in all control modes. In an emergency
stop the power supply to all switching elements controlled by the control system must be cut off. The power supply
can be cut off using a safety relay such as SCHLEICHER type SNO 2002-17.
Measures must be taken for restarting an interrupted control program following voltage dips or power failures.
Operating conditions should never cause danger, not even for a short time. In the event of danger the emergency
stop must be immediately triggered.
In order to prevent an open-circuit in the signal circuit causing non-controllable conditions in the control system, the
relevant hardware and software safety precautions must be taken for I/O interfacing. Control elements and their
assigned control panel elements must be installed in a place where they are sufficiently protected against
inadvertent use.
18.4
Maintenance
Measuring and testing on active devices must be carried out in accordance with the regulations and instructions
of the VBG 4.0 accident prevention regulation. The appropriate power tools must be used.
Repairs on control components must be carried out at repair shops authorised by SCHLEICHER. Opening the
components and repairs by unauthorised personnel may lead to personal injury or damage to property.
Always be disconnected the device from the mains before opening it (either disconnect the mains plug or use the
cut-out switch).
Control modules may only be replaced when the power is switched off. Disassembly and assembly must be carried
out according to the directives for mechanical assembly.
Fuses may only be replaced with those types specified in Technical Data.
Batteries may only be replaced with those types specified in Technical Data. Batteries must always be disposed as
hazardous waste.
18.5
High Voltages
When the cabinet is opened or casing is removed from system components
certain parts of the automation system are exposed. These parts may be subject
to dangerous high voltages.
The user must prevent any unauthorised and incorrect access to the system (for example, by ensuring that the
cabinet is locked).
Personnel must be familiar with all sources of danger and measures for commissioning and maintaining the system in
line with the instructions given in this manual.
