Setup and Adjustments
Installing the Data Protection Battery
Important:
Do not apply 24 VAC power to the NAE55
before installing the data protection battery.
To install the data protection battery:
1. Remove the battery from its packaging. Remove the
battery cover on the NAE55 to expose the battery
compartment (
2. Carefully plug the NAE55 battery connector from the
battery compartment into the connector on the battery
cable (
3. Place the battery into the compartment (
4. Slide one end of the battery strap into the hole on the
opposite side of the strap (
), and loop the
strap tightly around the battery to minimize battery
movement.
5. Replace the cover of the battery compartment.
6. Apply 24 VAC power to the NAE55 immediately.
Important:
The data protection battery must
maintain a small residual charge. The
battery ships from the factory with a
small residual charge. You should
connect 24 VAC power to the NAE55
immediately after connecting the battery
to ensure that the battery does not
completely lose its charge, which may
damage the battery.
Note:
The 24 VAC power to the NAE55 charges the
data protection battery. At initial startup, the
battery requires a charging period of at least
2 hours before it supports data protection if
power fails. Maximum protection (up to three
consecutive power failures without recharging
time) requires a 24-hour charging period.
Setting the End-of-the-Line Switches
The network devices at each end of an FC Bus segment
must be set as network terminated devices. The NAE55
has two EOL switches (one for each FC Bus) that enable
you to set the NAE55 as a network terminated device on
the bus.
To set an NAE55 as an FC Bus terminated device,
position the switch on the EOL switch block to the ON
position (
Figure 8: FC Bus EOL Switch in the Factory Default
ON (Up) Position
Note:
The NAE55 is shipped with the EOL switches for
both FC Buses in the initial factory position, ON
(
). If the NAE55 is not a terminated device
on the FC Bus, reposition the switch on the EOL
switch block to the Off (down) position.
Set the EOL switches appropriately for the FC A and FC
B buses. The NAE55 follows the same rules as other
switch-terminating devices listed in the Setting
Terminations sections of the
N2 Communications Bus
Technical Bulletin (LIT-636018)
and the
MS/TP
Communications Bus Technical Bulletin (LIT-12011034)
.
Powering on the NAE55
After applying 24 VAC power, the NAE55 requires
approximately 3 minutes to start up and become
operational. See the
section.
Startup is complete and the NAE55 is operational when
the (green) RUN LED is On steady and the (red) GEN
FAULT LED is Off. See
for LED locations.
Disconnecting Power from the NAE55
Important:
The data protection battery must be installed
and charged before disconnecting the 24
VAC supply power.
The 24 VAC supply power is disconnected from the
NAE55 by removing the terminal block plug from the
power terminal port on the NAE55 (
When the 24 VAC supply power to the NAE55 is
disconnected or lost, the NAE55 is nonoperational. The
POWER LED (
) remains On, and the data
protection battery continues to power the NAE55 for
approximately 1 to 3 minutes so that volatile data can be
backed up in nonvolatile memory. The POWER LED goes
Off when the data backup is completed.
9
NAE55/NIE55 Installation Instructions
