Concept Of Fail-Safe Digital Control (Door Open/Close) With Emergency Stop Via 4; Digital Inputs - Siemens SIDOOR ATD401W System Manual

SIDOOR functions
3.4 Safety functions
3.4.2.9

Concept of fail-safe digital control (door OPEN/CLOSE) with emergency stop via 4

digital inputs

This concept describes one implementation variant of the emergency stop function in
accordance with stop category 1 as specified in EN ISO 13850:2008, with fail-safe control (in
accordance with PLd) of door OPEN/CLOSE drive orders via 4 digital inputs.
Safe motor shutdown
SIDOOR controllers have an internal, cyclically tested and monitored second shutdown route
according to PLd. This ensures safe shutdown of the motor (emergency stop).
The following figures show examples of safe OPEN/CLOSE door control (in accordance with
PLd) with emergency stop in accordance with stop category 1 via 4 digital inputs via
redundant antivalent channel safeguarding.
Figure 3-18 Interfacing safe (PLd) digital door control (OPEN/CLOSE) with emergency stop (encoder type 1) via 4 digital
inputs
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ATD4xxW Door Controller for Industrial Applications
System Manual, 01/2017, A5E38080677-AB