Operation; Connecting Expansion Units - Omron G9SX Series Manual

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."
a
G9SX-NS202-@
a
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 button 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).
Non-contact Door Switch 2
Non-contact Door Switch 1
Robot 1
Emergency
stop button D40A
(See note.)
G9SX-
NSA222-T03-@
Robot 1
Note: A manual reset is required when an emergency stop is used.
b
G9SX-NSA222-T03-@
a (AND) b
Emergency stop button
Robot 2
D40A
G9SX-
NS202-@
Robot 2
Compact Non-Contact Door Switch

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.)
G9SX-NSA222-T03-@
D40A/
Flexible Safety Unit
Terminating
connector
Expansion Unit
G9SX-NS
21