Description of the software
6.7 Functions
Modular Safety System 3RK3
160 System Manual, 10/2008, 926 2530-02 DS 02
6.7 Functions
6.7.1 Fixed-value parameters
Fault signaling output (FAULT)
The fault signaling output (FAULT) is activated for all monitoring and output functions, i.e. the
substitute value at the function output is set to "0". In this way, wiring and (if applicable) logic
errors can be signaled.
Logic errors can occur with the following functions:
● EMERGENCY STOP
● ESPE (electro-sensitive protective equipment)
● Protective door
● Safety shutdown mat (NC principle)
Input delay
The input delay is required for bouncing contacts (protective door) to stabilize the signals
before they can be processed further by the functions.
The input delay can be set to anywhere between 0 to 150 ms for all functions.
NOTICE
If the input delay increases, the overall response time of the safety program increases.
Start conditions
The following start conditions must be fulfilled before the output of a function is set:
1. When the startup test is active, the sensor that is being monitored must be actuated
once. Faults must not occur here.
2. If any faults do occur, they must be rectified and acknowledged.
Monitored start
During a monitored start, the start pulse of the safety equipment must be between 150 and
2000 ms.
A monitored start can be carried out with the following monitoring functions:
● EMERGENCY STOP
● ESPE (electro-sensitive protective equipment)
● Protective door
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