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Chapter2 Self-Test
F3SG-R
User’s Manual
System Operation and Functions
2-6. Self-Test
2-6-1. Overview
The F3SG-R performs the Self-Test when power is turned ON (within 2 seconds) to check for errors.
Also, it regularly performs the Self-Test (within a response time) while operating.
This function cannot be cancelled.
If an error is found in the Self-Test, the F3SG-R enters the Lockout state, keeps the safety output in the
OFF state, and indicates the error at the same time.
2-6-1-1. Self-Test details
The Self-Test detects such error as described below.
Emitter
• Failure of emitter unit or circuit
• CPU failure
• Memory failure
• Failure of DIP Switch*
Receiver
• Abnormal external power supply voltage
• Failure of internal power supply circuit
• Failure of receiver unit or detection circuit
• CPU failure
• Memory failure
• Failure of safety output circuit
• Disconnected or short-circuited cable
• Failure of DIP Switch*
* The Self-Test for the DIP Switch is not available for the F3SG-RE as it does not have the DIP Switch.
F3SG-RA Series X
F3SG-RE Series X
Subsequently performs periodic test
Power supply
ON
OFF
Self test
ON
OFF
2 s max.
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