HindlePower AT30 SERIES Operating And Service Instructions page 50

SERVICING THE AT30
Error
Meaning
Code
internal memory
E 04
failure
not used
E 05
defective R4 or
E 06
R14 resistor, or
remote sense
wiring failure
open dc
E 07
breaker (CB2)
or internal dc
wiring failure
E 08 defective
temperature
compensation
probe
46
Any parameters that you set, such as Float or Equalize voltage, are saved
internally. The internal memory is tested on startup. If the memory test
fails, E 04 appears on the front display. The error may also appear if the
controller was trying to write to the memory while a power failure occured.
f an E 04 code appears, try shutting down the AT30. Restart by turning on
the dc breaker (CB2) first, followed by the ac breaker (CB1). If the AT30
restarts normally, you must reenter any changes you made to the factory
settings (float voltage, etc.).
If E 04 appears repeatedly, the internal memory has been damaged. You
must replace the Main Control PC Board (A1). See Section 3.6 for parts
ordering information.
This error code was formerly used to indicate a reverse battery
connection. It is not available in the AT30.
Locate R4 and R14 on the Gate Driver PC Board (A15), mounted to the
back side of the front instrument panel. Remove the wire harness plugs
from J25 & J26, and remove A15 from the Main Control PC Board (A1).
Use an Ohmmeter to measure the values of R4 and R14 (see table 3-1 for
the correct value). If either resistor is not within 1% of the specified value,
the entire Gate Driver PC Board (A15) must be replaced.
If you are using remote sense wiring from the battery to the AT30, the
wiring may have failed. The usual failure is an open circuit. A short circuit
will usually be indicated by smoke or fire in the wiring.
The AT30 displays error code E 06 if it detects this wiring failure. You
should respond to this problem quickly, to make sure that the AT30
regulates the output voltage properly. Wire an annunciator (e.g. buzzer) to
the summary alarm relay contact (TB3) for remote indication of any
charger problem. Otherwise monitor the AT30 operation using the
optional DNP Level 3 / MODBUS Communications Module (JA0102-04).
If you have a failure in remote sense wiring, the AT30 regulates its output
voltage locally until you correct the problem, see Section 1.9. The locally
controlled voltage may not reflect the true requirements of the battery.
When you complete the repair, restart the AT30 per Section 2.1.
If the dc breaker (CB2) is open, open the ac breaker (CB1). Restart by
closing the dc breaker (CB2) first, followed by the ac breaker (CB1). If the
dc breaker trips again, see the troubleshooting chart in Section 3.4.
If the dc breaker (CB2) is closed, but the front panel meter dsiplays E 07,
check your battery. If the battery is disconnected, and you then
disconnect the dc load, the AT30 may display an E 07 code. Restart the
AT30 according to Section 2.1.
If the battery and dc load are satisfactory, see the troubleshooting chart in
Section 3.4 for help in locating the problem.
See Application Note (JD5003-00) for more detailed user instructions.
If a remote temperature compensation probe (A10) is connected to the
AT30, the control circuitry detects the probe on startup and uses the
temperature measured by the probe to control the output voltage of the
charger. To understand temperature compensation, see Section 1.11.
If the probe (A10) or the wiring that connects it to the Main Control PC
Board (A1) fails during normal operation, the AT30 detects the failure and
displays E 08 on the front panel meter.
Repair Procedure