Hitachi WJ Series

Chapter 14 Safety Function STO
14-1-6
■ State transition diagram (b145:01)
■ State transition diagram (b145:02)
Normal
operation
STO
[Display]
[E37]
STO
[Display]
[E37]
Internal failure
[Display]
[E99]
e3
e3
e3
e3
e1
Trip
reset
e4
e4
e2
e4
STO
[Display]
[E37]
e2
e1
e2
Normal
operation
STO
[Display]
[E98]
STO
[Display]
[E98]
STO
[Display]
[E98]
Internal failure
[Display]
[E99]
e3
e3
e3
e3
e3
e2
e2
Trip
reset
e1
e4
e4
STO
[Display]
-S--
e4
e1
Trip
reset
e2
e2
e1