Nautel NAB05E, Технические инструкции

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48 VOLT BATTERY CHARGER
NAB05E
Page 6-2
01 September 2004
Table 6-1 System Troubleshooting Assistance Chart
SYMPTOM PROBABLE CAUSE CORRECTIVE MEASURE
System will not turn on a. Defective fuse F1. a. Replace defective fuse.
b. No ac line input. b. Check ac line at TB1-4/5.
c. Def23 volt supply. c. Check +23 volts at A1CR1
cathode.
No charge current to battery
a. Defective fuse F2. a. Replace defective fuse F2.
b. No pulses to turn on b. Check pulses at gates of Q1/Q2.
c. Battery fully charged. c. No corrective action necessary.
Battery not charging
a.
CHARGE VOLTAGE
potentiometer a. Adjust battery charger's
CHARGE
to required voltage. A1R24 incorrectly adjusted.
VOLTAGE
potentiometer A1R24 for
battery manufacturer's recom-
mended fully charged, no-load
terminal voltage.
Battery charge current
a.
CHARGE CURRENT
potentiometer a. Adjust battery charger's
CHARGE
not as required. A1R18 incorrectly adjusted.
CURRENT
potentiometer A1R18 for
battery manufacturer's recom-
mended charging current.