Datasheet

17
D40A/G9SX-NS
Operation
Functions
Logical AND Connection
A logical AND connection means that the G9SX outputs a safety
signal “a” to another G9SX, and that G9SX creates the logical AND of
safety signal “a” and safety signal “b.” The safety output of the
G9SX-NSA222-T03-@ with the logical AND connection shown in the
following diagram is “a” AND “b.”
This is illustrated using the application in the following diagram as an
example. The equipment here has two hazards identified as Robot 1
and Robot 2, and it is equipped with Non-contact Door Switches and
an emergency stop b utton as safety measures. If the door to Robot 2
is opened, only Robot 2 is stopped (i.e., a partial stop). If the door to
Robot 1 is opened or the emergency stop button is pressed, both
Robot 1 and Robot 2 stop (i.e., a complete stop).
The actual situation using a G9SX for this application is shown in this
example.
Note: The logical AND setting on the G9SX-NS202-@ must be set to
AND (enabled).
* A manual reset is required when an emergency stop is used.
Connecting Expansion Units
• The G9SX-EX and G9SX-EX-T Expansion Units can be connected
to a G9SX-NSA222-T3-@ Non-contact Door Switch Controller to
increase the number of safety outputs. (They cannot be connected
to a G9SX-NS202-@.)
• A maximum of five Expansion Units can be connected to one
G9SX-NSA222-T03-@. This may be a combination of G9SX-EX
instantaneous models and G9SX-EX-T OFF-delayed models.
• Remove the terminating connector from the receptacle on
G9SX-NSA222-T03-@ and insert the Expansion Unit cable
connector into the receptacle. Insert the terminating connector into
the receptacle on the Expansion Unit at the very end (rightmost).
• When Expansion Units are connected to a Controller, make sure
that power is supplied to every Expansion Unit. (Refer to the
following diagram for actual Expansion Unit connection.)
a
ab
a (AND) b
G9SX-NSA222-T03-@
G9SX-NS202-@
Robot 1
Robot 2
Emergency stop button
Non-contact Door Switch 1
Non-contact Door Switch 2
G9SX-
NSA222-T03-@
Robot 1 Robot 2
Emergency
stop switch *
D40A D40A
G9SX-
NS202-@
Expansion Unit
Terminating
connector
G9SX-NSA222-T03-@