Connecting Safety Sensors And The G9Sx - Omron G9SX User Manual

2. Functions, Wiring and Settings

2-5 Connecting Safety Sensors and the G9SX

( 1 ) When connecting safety sensors to the G9SX, the Y1 terminal must be connected to 24 VDC.
The G9SX will detect a connection error, if the Y1 terminal is open.
( 2 ) In many cases, safety sensor outputs include an OFF-shot pulse for self diagnosis.
The following condition of test pulse is applicable as safety inputs for the G9SX.
• OFF-shot pulse width of the sensor, during the ON-state: 340 μs max.
G9SX
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USER'S GUIDE
340 µs max.