FAQ No. FAQ02358
Question
What is the difference between an auto reset
and manual reset?
Answer
An auto reset is when there is no reset switch in the feedback
circuit and the device automatically starts when an input turns ON.
A manual reset is when there is a reset switch in the feedback circuit and
the device does not start when the input turns ON unless the reset switch
is pressed.
A manual reset is used for machines that people can enter and for
emergency stop circuits, and an auto reset is used for machines that
people cannot enter. Resets must occur only after all hazards have been
cleared and a manual reset is basically safer. Auto resets can be used for
guards through which people cannot enter. Always use manual resets for
guards through which people can enter and emergency stops.
Caution!
G9S-2001/2002 Safety Relay Units
G9SB-2002-A, G9SB-200-B,
G9SB-3012-A, G9SB-301-B Safety Relay Units
A manual reset cannot be used for the above models. Never use a manual
reset with these models because sometimes danger cannot be avoided if a
manual reset is used.
The same applies to using a manual reset for
G9SA Safety Relay Units in
Auto Reset Mode: Never use manual mode.
Other Safety Relay
FAQs
 Why are two inputs required for Safety Relay Units?
What is the difference between Safety Relays and Safety Relay Units?
What is a positive common input?
| 
Sitemap
