Emergency Stop Concept In Accordance With Stop Category 1 - Siemens SIDOOR ATD4 W Series System Manual

SIDOOR functions
4.4 Safety functions
Figure 4-16 Two-hand control device example parameterization
4.4.2.8

Emergency stop concept in accordance with stop category 1

This concept describes the implementation of the emergency stop function according to stop
category 1 according to EN ISO 13850:2015 section 4.1.3 Stop category 1.
Safe motor shutdown
SIDOOR ATD4xxW controllers have an internal, cyclically tested and monitored second
shutdown route according to PLd. This ensures safe shutdown of the motor (emergency stop).
Door commands
The door command with the highest priority is STOP → ramp stop.
The status following the ramp stop can be defined with the "special" door command expansion
bit: EMF brake activated or de-energized (free running mode or de-energized).
Implementation
For the implementation of an emergency stop circuit, the emergency stop signal must be routed
to the SIDOOR controller in a safety-related manner (frequency-based or 2-channel antivalent
evaluation) and internally linked with a stop door command. A negation block must be
configured if a low-active emergency stop signal is used.
The following figure shows an example of a low-active emergency stop signal with frequency-
based channel protection at INPUT0.
Figure 4-17 Example emergency stop parameterization
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ATD4xxW for industrial applications
System Manual, 06/2022, A5E51901827B AA