Rockwell Automation 1772-LPx DATA PLC-2 FAMILY PROG CONTRL - Manual (Page 6)

Step
1
Publication 1772Ć10.1 - March 1996
Configure and Ground I/O
Chassis
Configure I/O Chassis
If you are using a power supply outside of the rack, plug the 9Ćpin connector of the power cable
into the 9Ćpin socket on the I/O chassis backplane and leave the other end of the power cable
loose. (Later, you will connect this end of the cable to the power supply.)
Set the backplane switches.
a
b
Switch
Group
Assembly
10183ĆI
Input
Power
Socket
Rack: Switch:
1 2 3
1
2
3
4
5
6
7 on
off
on
on
on
on
on
on
on
on
on
on
on
off
off
off
off
off
off
off
off
Processor Restart Lockout - 2
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
Addressing Switch Ć- 5
ON Ć 1Ćslot addressing selected
OFF Ć 2Ćslot addressing selected
Last State Switch Ć
When ON, outputs of this chassis remain in last
state when a fault is detected.
When OFF, outputs of this I/O chassis are
deenergized when a fault is detected.
Always OFF
Last Chassis Switch Ć- 8
ON Ć Chassis does not contain the highest numbered I/O group
for the associated rack number
OFF Ć Chassis does contain the highest numbered I/O group for
the associated rack number
If you have only a primary chassis, set this
switch to OFF.
If you have both primary and complementary
chassis, set the primary chassis to ON and the
complementary chassis to OFF.
10802ĆI
ATTENTION: Set switch 1 to the OFF position
to deenergize outputs wired to this chassis when a fault is
detected. If switch 1 is set to the ON position, outputs connected
to this chassis remain in their last state when a fault occurs and
machine motion may continue after fault detection.
O O
1
2
345
6
7
8
N F F
Always OFF
Local I/O
Remote I/O