Rockwell Automation 1763 MicroLogix 1100 Programmable Controllers User Manual - Manual (Page 46)

Publication 1763-UM001D-EN-P - March 2011
44 Wiring Your Controller
suppressor can also be used. See for recommended suppressors. As shown
below, these surge suppression circuits connect directly across the load device.
Suitable surge suppression methods for inductive AC load devices include a
varistor, an RC network, or an Allen-Bradley surge suppressor, all shown
below. These components must be appropriately rated to suppress the
switching transient characteristic of the particular inductive device. See the
table on 45 for recommended suppressors.
+24V DC
IN4004 Diode
Relay or Solid
State DC Outputs
24V DC common
VAC/DC
Out 0
Out 1
Out 2
Out 3
Out 4
Out 5
Out 6
Out 7
COM
(A surge suppressor
can also be used.)
Surge Suppression for Inductive AC Load Devices
Output Device Output Device Output Device
Varistor RC Network
Surge
Suppressor