User Instructions UM582127000
Spec. No. 582127000 (Model 721NPBB) Issue AC, January 2, 2013
Chapter 4. Troubleshooting and Repair Page 25
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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 “Converter”
(ENT) / “All Conv Ctrl” (ENT).
4) Navigate to “Clear Conv Lost”. Press ENT. “Clear” highlights.
5) Press ENT to select the operation. Press ENT again to confirm.
6) Return to the Main screen by repeatedly pressing ESC (escape).
Replacement Assemblies
When a trouble symptom is localized to a faulty rectifier module, converter module,
controller, or system circuit card; that particular device or circuit card should be replaced
in its entirety. No attempt should be made to troubleshoot or repair individual
components on any rectifier module, converter module, controller, or circuit card.
Refer to SAG582127000 (System Application Guide) for replacement part numbers.
Replacement Cables
Refer to SAG582127000 (System Application Guide) for replacement part numbers.
Danger: Adhere to the “Important Safety Instructions” presented at the front of this
document.
Replacing a Rectifier Module (in a Spec. No. 588705000 Shelf)
Refer to the Rectifier Instructions (UM1R483500E) for a rectifier module replacement
procedure. Refer also to System Troubleshooting Information in this chapter.
The rectifier module being replaced is assigned by the ACU+ the lowest available
identification number. If desired, you can change the identification number, see
“Configuring the ACU+ Identification of Rectifiers” in Chapter 5 of the separate Power
System Installation Instructions (IM582127000).
Replacing a Rectifier or Converter Module (in a Spec. No. 588705300 Shelf)
Refer to the Rectifier User Instructions (UM1R482000E3) or Converter User Instructions
(UM1C48241500) for a rectifier and converter module replacement procedure. Refer
also to System Troubleshooting Information in this chapter.
The rectifier or converter module being replaced is assigned by the ACU+ the lowest
available identification number. If desired, you can change the identification number, see
“Configuring the ACU+ Identification of Rectifiers” or “Configuring the ACU+ Identification
of Converters” in Chapter 5 of the separate Power System Installation Manual
(IM582127000).
Replacing the ACU+ Controller
Refer to the ACU+ Instructions (UM1M820BNA) for a controller replacement procedure.