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Siemens SIDOOR AT40 System Manual

Siemens SIDOOR AT40
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Controllers
6.3 Safety concept ATD4xxW
AT40, ATD400V, ATD400K, ATD4xxW, ATD400S, ATE250S, ATD400T
System Manual, 06/2016, A2B00096162-AN
107
6.3.3.7
Concept of fail-safe digital control (door OPEN/CLOSE) with emergency stop via 3
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 3 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 3 digital inputs via
redundant antivalent channel safeguarding.
Image 6-19 Interfacing safe (PLd) digital door control (OPEN/CLOSE) with emergency stop (encoder type 1) via 3 digital
inputs
Door commands
The door command with the highest priority is STOP → ramp stop.
The status following the ramp stop can be defined using the "special" door command
expansion bit as either "source voltage brake activated" or "coasting down" (deenergized or
no current). In the case of ATD401, the door command expansion bit is permanently set to
"coasting down".

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Siemens SIDOOR AT40 Specifications

General IconGeneral
TypeController
ModelSIDOOR AT40
Supply voltage24 V DC
Power consumption5 W
Number of relay outputs4
Operating temperature-25 °C to +55 °C
Protection classIP20

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