Exide Technologies Section 94.40 - Manual (Page 51)

SERVICING THE AT30
47
Error
Code
Meaning Repair Procedure
E 08 Defective
temperature
compensation
probe
(continued) If the probe checks good, examine the wiring between the probe and the
AT30. Also check the connection of the cable to the control circuit board
on the back of the front panel. If the wiring is OK, then the probe needs
to be replaced. Once you have replaced the probe, you must restart the
AT30 to activate temperature compensation.
E 09 Misadjusted
current limit The output current limit is set at the factory to 110% of the rated output
current (e.g. for a 50 Adc charger, the current limit is set to 55 Adc). You
can adjust the current limit downward to as low as 50% of the output
current, if you have special requirements such as limited ac power
available. You should do this only if the normal dc load on the system is
smaller than the current limit.
If you do reduce the current limit setting below 100% of rated current,
your connected load might require more current than the AT30 can
deliver. If this happens, the battery will not charge properly. If this
occurs, the front panel displays the error code
E 09. You should increase
the current limit setting so that the AT30 can supply all the current
required by the load, and still charge the battery. The current limit should
be set to at least 5% greater than the maximum continuous dc load
current.
NOTE: The common alarm relay is not set for this condition.
E 10 Open internal
feedback loop A redundant internal feedback loop (control loop) is provided as
redundancy, to increase reliability when remote sensing is used. If there
is a problem with the internal loop wiring, the AT30 will display
E 10.
Check the internal wiring in the signal harness, especially wire # 50. Also
check the harness connector (J25) on the Gate Driver pc board (A15).
E 11 Not used This error code is not implemented at this time.
E 12 Defective
internal
thermostat The AT30 rectifier heat sinks assemblies are equipped with over-
temperature thermostats. On startup, the AT30 tests the thermostats,
and displays
E 12 if one or more are defective. You can check a
thermostat by disconnecting the wiring from the thermostat terminals, and
measuring continuity. The thermostat should be closed (NC) at normal
room temperature.
E 13 Internal over-
temperature One or more of the rectifier assembly thermostats has detected an over-
temperature condition. If the rectifier is equipped with fans, check all fans
for proper operation. Also be sure that all enclosure vents are clear of
debris, and that the ambient temperature is below 50°C (122°F).
E 14 forced load
sharing not
working
properly See Appendix F on page 92. Verify both AT30s are functioning properly.
Ensure that the forced load sharing interconnection cable assembly is not
broken, is properly installed, and that the connector for the Secondary
charger has the jumper as described. Ensure that both AT30s are
connected to the same ac supply and that source phase rotation is the
same for both AT30s.
A 01 manual equalize
enabled for
more than 24
hours If AT30 was accidentally left in manual equalize mode, switch unit back to
float, manual equalize timer, or auto-equalize timer mode.
A 02 Equalize mode
inhibited If you set the equalize timer to zero hours, the equalize mode is inhibited.
When you try to put the AT30 into equalize mode with a front panel
control, the display shows the message
A 02. If you want to enable the
equalize mode, set the equalize timer to one (1) or more hours.