Filter
Top Products
User Instructions UM582127000
Spec. No. 582127000 (Model 721NPBB) Issue AC, January 2, 2013
Chapter 4. Troubleshooting and Repair Page 23
This document is property of Emerson Network Power, Energy Systems, North America, Inc. and contains confidential and proprietary information owned by Emerson Network Power, Energy
Systems, North America, Inc. Any copying, use, or disclosure of it without the written permission of Emerson Network Power, Energy Systems, North America, Inc. is strictly prohibited.
Procedure
1) With the Main screen displayed, press ENT to go to the Main Menu. Navigate to
and select “Settings” (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 Settings menu screen displayed, navigate to and select “Rectifier”
(ENT) / “All Rect Set” (ENT).
4) Navigate to “Current Limit Pt”. The current limit in amperes is displayed. If no
change is required, go to step 6). To make a change, proceed with step 5).
5) With the cursor at “Current Limit Pt”, press ENT to change the current limit point.
Use the up or down arrow keys to set as desired, then press ENT.
6) Return to the Main screen by repeatedly pressing ESC (escape).
Clearing a Rectifier Communications Fail Alarm after Removing a Rectifier
If a rectifier module is removed from the system, a rectifier communications failure alarm
is generated. If the rectifier module will not be replaced, the alarm should be cleared as
described in the following 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.
5) Press ENT to select the operation. Press ENT again to confirm.
6) Return to the Main screen by repeatedly pressing ESC (escape).
Clearing a Converter Communications Fail Alarm after Removing a Converter
If a converter module is removed from the system, a converter communications failure
alarm is generated. If the converter module will not be replaced, the alarm should be
cleared as described in the following procedure.
Procedure
1) With the Main screen displayed, press ENT to go to the Main Menu. Navigate to
and select “Manual” (ENT).