Lucent Technologies Lineage
®
2000 50A Ferroresonant Rectifier J85502B-1
Issue 6 May 1999
Testing 6 - 5
2. Use the documentation for the particular battery plant to
perform all the preliminary checks on the plant prior to the
rectifier tests. If the rectifier is in a
microprocessor-controlled plant with an efficiency
algorithm feature, disable this feature. (See the controller
manual for instructions.)
3. Using the digital multimeter (DMM) on the dc volts scale,
check the plant control cable:
a. Verify that battery voltage, via the controller, is present
between positions 1 and 2 on TB3 (see Figure 5-2).
b. Check for battery voltage between pins 27 and 2 of
control cable connector J2A. The J2A connector is at
the rectifier end of the plant control cable. Pin 27
should be positive with respect to pin 2.
c. As an extra precaution, check for battery voltage
between ground and pin 2 (negative plant) or pin 27
(positive plant). If no voltage exists, there is a wiring
problem associated with the control cable or controller.
The problem must be found and repaired before
proceeding with testing.
Table 6-A: Rectifier Control Settings for Testing Off Line
Controls
Status/Position
Associated ac circuit breaker
or fuses at the service panel
Off or fuses removed and
holders tagged “out of
service”
Rectifier POWER switch
Off (down)
Rectifier DC OUTPUT
circuit breaker
Off (down)
OUTPUT VOLTS ADJ
potentiometer
Fully counterclockwise
(20 turns to stop)
Connector J2A on plant
control cable
Disconnected from P2A on
CM2
Note
On J2A, pins 1, 5, 10, 15, and 20 are marked on the
connector. Pin 21 is in the row across from pin 1. Pin 40 is
across from pin 20.
