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4. SAFETY OBSERVATION FUNCTION
(b) Not executing fixing-diagnosis at start-up
When there is no target of the fixing-diagnosis at start-up, an internal diagnosis after power-on will
be executed, warning will be reset at the moment of all the input devices on, and STO state will be
canceled.
Main circuit
Power
Control circuit
supply
DI1A
DI1B
DI2A
DI2B
DI3A
DI3B
DI4A
DI4B
DI5A
DI5B
DI6A
DI6B
WNG (Warning)
STOS (STO output)
Servo-on
(Controller or DI)
Base circuit
Servo amplifier display
Start of Servo-on acceptance
3 s to 4 s
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
(Occurring)
OFF
(Not occurring)
ON
OFF
(Shut-off)
ON
OFF
ON
OFF
95.3
95 ms
4 - 11
(Diagnosis
disabled)
(Diagnosis
disabled)
(Diagnosis
disabled)
(Unused)
(Diagnosis
disabled)
(Diagnosis
disabled)
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