Siemens SIDOOR ATD4 W Series System Manual page 123

Antivalent connection of two redundant, two-channel antivalent sensors to two channels
Two redundant 2-channel antivalent sensors are needed for the signal (1oo2 evaluation)
Figure 4-15
The output of the "AND0" block can be directly assigned a drive order or can be assigned the
prioritized STOP door command via an additional negation block. This corresponds to enabling
for the actual drive order. The following example illustrates this:
• Open drive order is activated.
• 2-hand control device inactive → STOP (highest priority)
• 2-hand control device active → STOP is cleared → OPEN becomes active
ATD4xxW for industrial applications
System Manual, 06/2022, A5E51901827B AA
Two-hand control device example
SIDOOR functions
4.4 Safety functions
121