Inputs - Siemens SIDOOR ATD4 W Series System Manual

4.4.2.9 Concept of fail-safe digital control (door OPEN/CLOSE) with emergency stop via 3
digital inputs
This concept describes an implementation variant of the emergency stop function according to
stop category 1 of EN ISO 13850, with safe control (according to PLd) of the drive orders OPEN/
CLOSED via three 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 figures below show examples of the safe control (to PLd) Door OPEN/CLOSE with emergency
stop according to stop category 1 via 3 digital inputs via a redundant antivalent channel
protection.
Figure 4-18 Connection safe (PLd) digital command output Door OPEN/CLOSE and emergency stop (sensor type1) via 3 digital

inputs.

Door commands
The door command with the highest priority is STOP → ramp stop.
The follow-up status after the ramp down can be defined with the door command extension
"Special", optionally: EMF brake activated or de-energized (free running mode or de-energized).
With ATD401W, the drive command extension is permanently set to "free running mode".
ATD4xxW for industrial applications
System Manual, 06/2022, A5E51901827B AA
SIDOOR functions
4.4 Safety functions
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