Interpreting Front Panel Error Messages - HindlePower AT30 SERIES Operating And Service Instructions

3.2. INTERPRETING FRONT PANEL ERROR MESSAGES

If the AT30 control circuitry detects hardware or wiring problems, it may
display an error code on the front panel meter. Certain non-error status
codes are also displayed. To solve an error code problem, refer to the
table below, which lists the codes and procedures to use.
High voltages appear at several points inside the AT30. Use extreme
caution when working inside the enclosure. Do not attempt to work
inside the AT30 unless you are a qualified technician or electrician.
Disconnect and lock out all power from the AT30 before starting to
remove or replace any components. Turn the ac power off at the
distribution panel upstream from the charger. Disconnect the battery
from the AT30 output terminals TB1(+/-).
Error
Meaning
Code
E 01 resistor R2
open or
defective
short circuit
E 02
on dc output
High DC
E 03
Voltage
Shutdown
activated
!
WARNING
The Rating Resistor (R2) is installed at the back of the front panel in the
Gate Driver PC Board (A15) input connector (J25). R2 is measured by the
control circuitry on startup, and is used to determine some of the AT30
model-specific parameters, such as the float voltage.
If the AT30 detects that R2 is defective (or improperly sized), it must be
replaced. See Section 3.6 for parts ordering information. When you have
completed the repair, restart the AT30 according to Section 2.1.
The AT30 may display this error code if the battery is discharged to less
than 6 volts. When the battery re-charges to greater than 6 volts, the error
code will disappear. If you have a seriously discharged battery, allow the
AT30 to run for 24 hours and check the battery voltage again. If it has not
increased to the normal voltage rating, consult the battery manufacturer
for help.
If the battery voltage is normal, check the wiring at the AT30 dc output
terminals (TB1+/-) for a short circuit.
If the battery voltage is normal, and all external wiring is satisfactory,
check the AT30 dc circuit breaker (CB2). If it is tripped, try once to reset
it. If it trips again immediately, there may be an internal short circuit in the
AT30. Check the internal wiring. If the AT30 is filtered, check the dc filter
capacitors (C1/C2) and the polarity diode (CR1).
The AT30 normally recovers automatically from an E 02 condition. If you
have shut down the AT30 for service, restart per Section 2.1.
To restart the AT30, turn the ac breaker off, then on. Check the Equalize
voltage and High DC Voltage alarm settings. The HDCV alarm setting
must be higher than the Equalize voltage setting.
If you get another High DC Voltage shutdown after a few minutes of
operation, there may be an internal component failure. See AT30 output
voltage too high, or not controllable of the troubleshooting chart on
page 52 of Section 3.4.
SERVICING THE AT30
Repair Procedure
45