Siemens SIDOOR AT40 System Manual page 79

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 same
Table 5-5
Pin assignment
Table 5-6
Pin assignment
X16.1
X16.2
X16.3
The bus can be terminated with 120 ohms via the switch S1.
You will find information about manufacturer-specific CANopen objects at Industry Online
Support on the Internet (https://support.industry.siemens.com/cs/ww/en/ps/18268/man).
AT40 and ATD400V for elevators
System Manual, 06/2022, A5E42192709-AH
DANGER
voltage potential.
Observe the general ESD guidelines.
Connector X15
Pin
1
X15.8
. .
.
2
X15.1
3
4
5
6
7
8
Connector X16
Pin
1
2
3
5.5 Relay and field bus interfaces
Signal
CAN_H
CAN_L
GND
–
–
Shield
GND
–
Signal Description
CAN_H CAN high bus cable
Shield CAN cable shield
CAN_L CAN low bus cable
Controllers
77