IDEC FS1A Controller - Manual (Page 66)

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●State monitor outputs: Y14 to Y16
Y14 to Y16 are monitoring outputs for the internal status of the SafetyOne.
Y14 turns ON when in Initial or Stop state.
Y15 turns ON in Initial, Protection or Configuration state.
Y16 turns ON in Run state.
Refer to “Chapter 4 BASIC OPERATION”, or “Chapter 6 TROUBLESHOOTING”, for details of the
each state.
Warning
Monitor outputs are not safety outputs. Do not use these to construct a safety system.
●Solenoid outputs: Y17 and Y20
Y17 and Y20 are outputs for solenoid control that are used for safety interlock switch with a
solenoid lock.
In the Run state, when the safety outputs are OFF and 1 or more safety inputs are OFF, the
solenoid outputs are turned ON. When all safety inputs are ON, the solenoid outputs are turned
OFF, although start input is not activated.
Warning
Solenoid outputs are not safety outputs. Do not use these to construct a safety system.
Caution
Refer to "Chapter 2 PRODUCT SPECIFICATIONS" for specifications of each input and output.