12
Rockwell Automation Publication 5069-IN019C-EN-P - October 2018
CompactLogix 5480 Controller
7. Insert the wire from an Earth Ground location into the first
Ground (
)
on the RTB.
The Earth Ground location can be the external SA power
supply, the DIN rail, or other Earth Ground location.
8. Turn the screwdriver to close the terminal on the wire.
The screw torque is 0.4 N•m (3.5 lb•in).
This diagram shows an external 240V AC power supply that is
connected to the SA power RTB when you do not use UPS
control signals.
Connect Control Signals Via UPS Control RTB
The CompactLogix 5480 controller does not have an internal energy
storage module that lets the controller save the state of the program if
system-side power is lost. You must connect an external uninterruptible
power supply (UPS) to the UPS control RTB to save the state of the
program if power is lost.
You connect control signals from an external power supply to the UPS
control RTB to let the controller experience a controlled shutdown
upon an incoming power loss.
When a UPS connection is detected, the CompactLogix 5480
controller defaults to initiate shutdown 1 minute after a power
loss indication.
We recommend that you use 1606 switched mode uninterruptible
power supplies from Rockwell Automation with a CompactLogix
5480 controller, for example, the 1606-XLS240-UPS power supply.
For more information on Bulletin 1606 uninterruptible power
supplies, see the following:
• Bulletin 1606 DC-UPS Uninterruptible Power Supply
Installation Instructions, publication
1606-IN025
• Bulletin 1606 Switched Mode Power Supplies Reference
Manual, publication
1606-RM036
The switched mode uninterruptible power supplies use a 12-volt
battery module to bridge power failures and voltage fluctuations. We
recommend that you use the 1606-XLSBATASSY1 battery module
from Rockwell Automation.
You can use other accessories, such as replacement batteries, mounting
kits, and panel/wall mounting brackets with the battery module.
For more information on and the battery module and accessories that
you can use with them, see the following:
• Bulletin 1606 12V 7Ah Battery Modules Installation
Instructions, publication
1606-IN011
• Bulletin 1606 Switched Mode Power Supply Battery Modules
(12V 7Ah) Reference Manual, publication
1606-RM037
TIP
This symbol
denotes
an
Earth
Ground
terminal
that
provides
a
low
impedance path between electric circuits and earth for functional
purposes and provides noise immunity improvement. This connection
must be made for functional purposes.
24V DC
Power
Supply
+
–
240V AC
Power
Supply
+
–
MOD
Power
SA AC
Power
Earth Ground
