Alpha Technologies Spectra Series - Manual (Page 25)

Preliminary Operating Instructions 25 of 62 AIP SERVICE NUMBER 1-800-863-3364
9. CHARGER START UP SEQUENCE
When all connections are made with the proper wire size, location and torque value, the charger is ready for
power up. Use the following steps to start up the charger.
9.1 CHECK DISPLAY AND LEDS
Switch the charger AC and DC breakers “OFF”, and disconnect the charger from the battery. Then,
reconnect the DC battery bus voltage to the charger. The Display and LEDs on the front of the charger
should power up and display the DC voltage that the charger senses on the DC terminal strip. If the
display does not show the proper DC voltages, disconnect charger from the DC battery bus and verify
connections and polarity again. (The charger requires at least 17 volts DC for the display to power up in
the 24 and 48-volt DC chargers and at least 100 volts DC in the 130-volt DC chargers.) If the Display or
LEDs do not power up correctly, even though connections were verified to be correct, see the
Troubleshooting section. Note: The back light of the LCD display will not be illuminated while the AC
breaker is off.
9.2 CHARGER SETTINGS
If the charger senses the proper voltage, you can go into the charger menus and customize the charger
settings. At this time, the summary alarm buzzer may sound because of various fault codes. If
necessary, disable the alarm buzzer or the fault condition while customizing the charger settings and
then enable them after the charger setup is complete.
9.3 AC & DC POWER UP
Disconnect the charger from the DC battery bus again with the switch or breaker. Apply the proper AC
voltage to the Charger AC terminal strip. Turn the AC Breaker “ON”. The charger Display should power
up with the display back light on, the “AC ON” LED should illuminate, now turn the DC breaker “ON”.
The charger will power up and slowly charge up the capacitor(s) in the charger to the proper float
voltage. The “DC ON” LED will illuminate.
9.4 RECONNECT DC & RE-CHECK
Connect the charger to the DC battery bus again with the switch or breaker. The charger will start
charging the battery at the appropriate voltage and current if everything is functioning properly. If you
experience any problems, go to the Troubleshooting section.
10. CIRCUIT BOARDS
The standard circuit boards are the SCR Driver Board and the Control Board. The optional circuit board is the
ALARM I/O Relay Board. Each of these three boards can be used universally in all charger models.
All three boards have RJ45 connector sockets to allow them to be easily connected or disconnected from each
other for service or to allow the use of an optional Remote Control Panel. The RJ45 connector sockets are all
connected in parallel so the cables can be plugged into any of the RJ45 receptacles on each board.
10.1 SCR DRIVER BOARD
The SCR Driver Board stores all of the important variables for the charger except for the time of an
equalize cycle. It determines what model the charger is, monitors the charger system for faults, and
sends information to the control board. It also provides the SCR gate drive pulses to control the charger
output and the proper supply voltages for the other two boards.
The following features are found on the SCR Driver Board. See FIGURE 10.1 for location of
components.