Rockwell Automation 1764-xxxx MICROLOGIX 1500 PROGRAMMABLE CONTROLLERS - Manual (Page 88)

Publication 1764-UM001B-EN-P - April 2002
4-20 Communication Connections
Safety Considerations
This equipment is suitable for use in Class I, Division 2, Groups A, B,
C, D or non-hazardous locations only.
.
See Safety Considerations on page 2-3 for additional information.
Installing and Attaching the AIC+
1. Take care when installing the AIC+ in an enclosure so that the
cable connecting the MicroLogix 1500 controller to the AIC+
does not interfere with the enclosure door.
2. Carefully plug the terminal block into the RS-485 port on the
AIC+ you are putting on the network. Allow enough cable slack
to prevent stress on the plug.
3. Provide strain relief for the Belden cable after it is wired to the
terminal block. This guards against breakage of the Belden cable
wires.
Powering the AIC+
In normal operation with a MicroLogix programmable controller
connected to port 2 of the AIC+, the controller powers the AIC+. Any
AIC+ not connected to a MicroLogix controller requires a 24V dc
power source. The AIC+ requires 120 mA at 24V dc.
If both the controller and external power are connected to the AIC+,
the power selection switch determines what device powers the AIC+.
WARNING
!
EXPLOSION HAZARD
This product must be installed in an enclosure. All
cables connected to the product must remain in the
enclosure or be protected by conduit or other means.
ATTENTION
!
If you use an external power supply, it must be 24V
dc. Permanent damage results if higher voltage is
used.