Omron NX-SID Series User Manual page 96

3 Part Names and Functions
Precautions for Correct Use
Safety devices with semiconductor outputs, such as safety light curtains, sometimes provide a
pulse output that is used to detect wiring errors. Observe the following when connecting a
Safety Device with a semiconductor output to a safety input terminal.
• OFF pulse width when semiconductor output is ON: 700 μs max.
• ON pulse width when semiconductor output is OFF: 30 μs max.
Check the specifications of the connected device for the maximum cable length.
 E3ZS/E3FS Single-beam Safety Sensors
An OMRON E3ZS/E3FS Single-beam Safety Sensor is connected as shown in the following figure.
24 VDC
0 V
Communications Coupler Unit or
Additional I/O Power Supply Unit
IOV
IOG
Example of Sysmac Studio Settings
3 - 18
700 µs max.
30 µs max.
Single-beam Safety Sensors
NX-SI
T0
Si0
IOV
IOG
NX bus connection
NX-series Safety Control Unit User's Manual (Z930)