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Controllers
6.3 Safety concept ATD4xxW
AT40, ATD400V, ATD400K, ATD4xxW, ATD400S, ATE250S, ATD400T
System Manual, 06/2016, A2B00096162-AN
103
Image 6-14 Two-hand control device example parameterization
6.3.3.5
Emergency stop concept in accordance with stop category 1
This concept describes the implementation of the emergency stop function according to stop
category 1 in compliance with EN ISO 13850:2008.
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: "source voltage brake activated" or "coasting down" (deenergized or no
current).
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.
Image 6-15 Example emergency stop parameterization