Operating The At30 Battery Charger 2.1 Starting The At30 2.1.1 Understanding The Start-Up Sequence; Checking The Installation; Starting The At30; Using The Digital Meter - HindlePower AT30 SERIES Operating And Service Instructions

OPERATING THE AT30
2. OPERATING THE AT30 BATTERY CHARGER

2.1. STARTING THE AT30

2.1.1. Understanding the startup sequence
The AT30 is set up at the factory to work with most common batteries and
loads without further adjustment. When you start the AT30 for the first
time, the factory settings (float voltage, equalize voltage, etc.) control the
operation of the charger. You can change the settings after you start the
AT30. The FACTORY SETTINGS are listed in table on page 25.
The AT30 startup routine takes about five seconds. The microprocessor
that controls the AT30 initializes the charger by reading the settings that
are stored internally. The control circuitry then "soft starts" the AT30 and
the dc output voltage and current increase gradually to the rated value.

2.1.2. Checking the installation

Be sure that you have followed the installation
instructions carefully. Check the ac input
supply voltage and the battery voltage, and be
sure that they match the information on the
AT30 nameplate. Verify that the jumpers on the
main transformer (T1) are correct for your ac
supply voltage. Open the front panel, and check
the battery polarity at the TB1 (+) and (-)
terminals.
2.1.3. Starting the AT30
When you are sure that all connections to the
AT30 are properly made, follow these steps to
start up the AT30:
• Turn on the front panel dc circuit breaker. The digital meter indicates the
battery voltage only. If the meter display does not light, do not proceed.
Turn off the dc breaker, and check all connections and the battery
polarity again. Also check the battery voltage. It must be above 50% of
nominal voltage to turn on the display. If you cannot find the problem,
refer to the Troubleshooting Procedure in Section 3.1 on page 44.
If you attempt to turn on the dc circuit breaker (CB2) with the battery
connected in reverse polarity, the breaker will immediately trip. Do
not try to close the dc breaker again, since this may damage the
AT30. If your AT30 is equipped with dc fuses, one or both fuses will
blow when the battery is reversed. Correct the battery polarity
before proceeding.
24
NOTICE

Using the Digital Meter

When you first start the
AT30, the meter display
alternates between dc output
voltage and dc output current.
Each reading is held for two
(2) seconds. Indicator lights
to the left of the display
indicate whether the meter is
displaying voltage or current.
If you want to "freeze" the
meter to display only voltage,
press the METER MODE
key on the front panel.
freeze the meter to display
only current, press the key
again. Press the key twice
more to revert to
alternating display.
To
the