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14
Wiring
(3) Safety stop function operation
For more details, refer to the Safety stop function instruction manual (BCN-A211508-004). (Refer to the front cover for how to
obtain the manual.)
Input
power
Input signal
Internal safety circuit∗1
Output signal
Inverter operation enable signal
S1-PC S2-PC SAFE∗3 SAFE2∗3
OFF — — — OFF OFF Output shutoff (Safe state)
ON
Short Short
No failure OFF ON Drive enabled
Failure OFF OFF Output shutoff (Safe state)
Open Open
No failure ∗2 ON ON Output shutoff (Safe state)
Failure OFF OFF Output shutoff (Safe state)
Short Open Failure OFF OFF Output shutoff (Safe state)
Open
Short Failure OFF OFF Output shutoff (Safe state)
∗1 At an internal safety circuit failure, one of E.SAF, E.6, E.7, and E.CPU is displayed on the operation panel.
∗2 SA is displayed when both of the S1 and S2 signals are in open status and no internal safety circuit failure exists.
∗3 ON: Transistor used for an open collector output is conducted.
OFF: Transistor used for an open collector output is not conducted.