Siemens SIDOOR AT40 System Manual page 60

LED signals
All LED signals are listed in the following table.
LED signal (H3)
(1 x per second)
(1 x per second)
(∼5 Hz)
Connection
Risk of injury due to electrical voltages
The protective cover has to be removed to connect the CAN cable or to activate/deactivate
the terminating resistor.
Perform the following protective measures before removing the protective cover:
• Disconnect the controller from all live cables.
• By grounding, ensure that the user/fitter, the controller and other conductors have the
Door control units SIDOOR AT40 and ATD400V for elevators
System Manual, 06/2018, A5E42192709-AC
CANopen state machine
"Pre-operational" or
"Stopped"
"Operational"
Automatic determination of the baud rate
DANGER
same voltage potential.
Observe the general ESD guidelines.
4.5 Relay and field bus interfaces
NO CAN telegrams are received
CAN telegrams are received
NO CAN telegrams are received
CAN telegrams are received
Controllers
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