NetSure
™
9500 120kW 400V DC Power System
Operation Manual, UM584001200 (Issue AA, April 14, 2014)
Spec. No: 584001200
Code: UM584001200
Model No: 9500
Issue AA, April 14, 2014
[6 of 13]
Lockout/Tagout (LOTO)
The “Battery Disconnect Circuit Breaker” on an Emerson Battery
Cabinet contains a bracket which allows the circuit breaker to be
padlocked in the off position.
Maintenance
Inspect the batteries according to battery manufacturer’s
instructions. Maintain records as required by the battery
manufacturer to maintain the battery warranty.
Typical battery life is expected to be 3-5 years (depending on
conditions).
Battery life is determined by a variety of factors, including the
technology deployed, the charge/discharge cycle history,
operating temperature, peak current draw, etc. Battery health
should be checked at regular intervals per battery manufacturer’s
instructions. It is recommended to verify battery string voltage
(336V DC nominal) and individual battery block voltages (12V DC
nominal). To verify the health of individual battery blocks, it is
recommended to isolate and disconnect the battery string from
the system (via the battery disconnect circuit breaker).
The ACU+ controller contains a Battery Test feature to validate
batteries. Refer to the ACU+ Controller Operation Instructions
(UM1M820NNB-2).
Troubleshooting and Repair
Important Safety Instructions
Danger! Adhere to the “Important Safety Instructions”
presented at the front of this document.
Contact Information
Emerson Technical Support contact information is provided on the
inside of the back cover of this document for issues not covered
here.
Controller and Rectifiers
For troubleshooting and repair instructions on these units, refer to
the following documents.
•
ACU+ Controller User Instructions (UM1M820NNB-2)
•
Rectifier Instructions (UM1R40015000e)
ACU+ Controller Configuration
If any ACU+ controller configuration settings were changed, refer
to the ACU+ User Instructions (UM1M820NNB-2) and save a copy
of the configuration file. This file can be used to restore the ACU+
controller settings, if required, at a later date.
•
Note that provided on a USB drive furnished with the
system is an ACU+ configuration drawing (C-drawing)
and the ACU+ configuration files loaded into the ACU+ as
shipped.
System Troubleshooting Information
This system is designed for ease in troubleshooting and repair. The
various indicators as described in “Operating Procedures” on page
2 and in the controller and rectifier instructions are designed to
isolate failure to a specific component. Once the faulty
component has been identified, refer to “Replacement
Information” on page 7 and "Replacement Procedures" on page 7.
Troubleshooting Alarm Conditions on the ACU+ Controller
The ACU+ controller displays alarm conditions as listed in the
Available Alarms section of the ACU+ User Instructions
(UM1M820NNB-2). Programmable external alarm relays are also
available. Refer to the ACU+ Configuration Drawing (C-drawing)
furnished with your system for your alarm relay configurations.
The ACU+’s
Active Alarm
and
Alarm History
submenus allow the
User to view alarm details. Refer to the ACU+ User Instructions
(UM1M820NNB-2) to access these menus.
Clearing a Rectifier Communications Fail Alarm after Removing
a Rectifier
If a rectifier is removed from the system, a rectifier
communications failure alarm is generated. If the rectifier will not
be replaced, the alarm can be cleared as described in the following
local LCD interface procedure.
PROCEDURE
1.
With the Main screen displayed, press ENT to go to the
Main Menu. Navigate to and select “Manual” (ENT).
2.
If a password screen opens, a password must be entered
to allow the User to make adjustments. If a password was
previously entered and has not yet timed out, skip this
step and proceed to step 3). Otherwise, to enter a
password, with the cursor at the User Name field (default
is “Admin”), press the down arrow key to move cursor
down to the password line. Press ENT. “0” is highlighted.
Press the up arrow key once to change the “0” to”1”
(default password is “1”), then press ENT twice. (
Note:
If
you have been assigned a unique User Name and password,
follow this procedure to enter these.)
3.
With the Manual menu screen displayed, navigate to and
select “Rectifier” (ENT) / “All Rect Ctrl” (ENT).
4.
Navigate to “Clear Comm Fail”. Press ENT. “Yes”
highlights.
Danger