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Procedure 8-7 (continued)
Load sharing adjustments for replacement rectifiers
Step
5
6
7
8
AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0
Action
Adjust the FLOAT voltage of the rectifier that has the lowest current reading
on the rectifier ammeter display by:
a. slowly and very slightly adjusting the FLT potentiometer clockwise until
the ammeter reading is no longer the lowest of the installed rectifiers.
Note: The FLT potentiometer load sharing adjustment is very sensitive. Small
adjustments can reflect large changes in the ammeter readings.
Adjust the FLOAT voltage of the rectifier that has the highest current reading
on the rectifier ammeter display by:
a.
slowly and very slightly adjusting the FLT potentiometer
counterclockwise until the ammeter reading is no longer the highest of
the installed rectifiers.
Note: The FLT potentiometer load sharing adjustment is very sensitive. Small
adjustments can reflect large changes in the ammeter readings.
Repeat from Step 4 until all rectifiers have RFA LED illuminated GREEN and
the ammeter displays all read within 0.1 A of each other.
Reinstall the cabinet cover.
—end—
Testing the batteries and rectifiers 8-27
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