2.2 Correct use
2.2.1 Application
The PROTECT-PSC Sicherheits-Kleinsteuerung is a safety-oriented programmable
control system for evaluating sensors and controlling actuators via a field bus. The
PROTECT-PSC can be used in applications up to Performance Level (PL) e,
Category 4 to ISO 13849–1. Its use is only possible in systems in which the safe
state is equal to the de-energized state.
The PROTECT-PSC system is particularly suitable for the safety-oriented
evaluation and control of EMERGENCY OFF (EMERGENCY STOP) command
devices, interlocking devices and other protective devices which protect operators
from hazardous movement in the area of action of a machine.
Design, implementation and operating errors may affect the correct operation of
the PROTECT-PSC system, resulting in injury or damage to property or to the
environment. This is why only sufficiently qualified persons may operate the PRO-
TECT-PSC system.
The PROTECT-PSC system is exclusively intended for use in machines within the
scope of IEC 60204-1 (Electrical Equipment of Machinery).
Additional requirements arising from other provisions and regulations are not
necessarily satisfied by the PROTECT-PSC system.
The PROTECT-PSC Sicherheits-Kleinsteuerung may not be used in potentially
explosive areas.
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