AMETEK/PRESTOLITE POWER AC1000 Control, Owner'S Manual

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MAINTENANCE
Replace capacitor if can is ruptured or fails test. Refer to Capacitor
Testing in Maintenance chapter.
Check charging rate for "too low" adjustment.
Refer to Charging Rate Adjustment in Maintenance chapter.
Check line voltage for connection to proper input voltage.
Refer to Line Voltage Changeover instructions in Installation chapter.
Check battery for one or more defective cells.
Less than rated output on fully discharged battery (approximately 1/2 rated output) (3 - phase
chargers only)
Check input fuses (one probably blown). Check for either a shorted transformer, or
wiring short circuit.
Replace as necessary.
High charging current at beginning of cycle (battery overcharged)
Check charging current for "too high" adjustment.
Refer to Charging Rate Adjustment in Maintenance chapter.
Charger does not shut OFF automatically or start automatically
Check Charge Control.
1. If equipped with electromechanical timer
A. Check timer switch contacts. If they are "welded" together and show continuity when
timer is off, replace timer.
B. Check to see if timer control motor is running.
C. Replace timer if there is not continuity of timer motor field. Check AC power supply
to motor.
2. If charger does not start automatically, check for 24 volts AC between the red - white lead and
the red - black lead of control transformer T1. If 24V AC is present, connect a jumper from the
red - white lead of control transformer T1 to the red lead of contactor K1 coil. If charger starts,
check further for faulty printed circuit card on control and replace as necessary.
3. If charger does not stop automatically when equipped with voltage time or dV/dT controls,
check to be sure charging voltage rises above 2.37 volts/cell during the cycle. If not, see low
charging current or less than rated output above. If battery on - charge voltage rises above
2.37 volts/cell during the cycle, check for defective control printed circuit card.
6 - 5 November 17, 2020