HindlePower AT30 SERIES Operating And Service Instructions page 51

Error
Meaning
Code
defective
E 08
temperature
compensation
probe
(continued)
misadjusted
E 09
Current Limit
open internal
E 10
feedback loop
not used
E 11
defective
E 12
internal
thermostat
internal over-
E 13
temperature
forced load
E 14
sharing not
working
properly
manual eqlz
A 01
enabled for
more than 24 hr
equalize mode
A 02
inhibited
A 04 voltmeter
calibration
inhibited
w/TempCo
active
dc output at
A 05
Current Limit
setting
Disconnect the wiring at the probe and measure the resistance across the
quick-connect leads with an Ohmmeter. The resistance should measure
Ω
approximately 10,000
probe reads open or shorted, it needs to be replaced.
If the probe is satisfactory, examine the wiring between the probe and the
AT30. Also, check the connection of the cable to TB8 on the Main Control
PC Board (A1) on the back of the front panel. If the wiring is satisfactory,
the probe needs to be replaced. Once you have replaced the probe, you
must restart the AT30 to activate temperature compensation.
This code has been discontinued with Main Ctrl PCB firmware version
6.52. See Application Note (JD5035-00) for a description of this code.
A redundant internal feedback loop (control loop) is provided to increase
reliability when remote sensing is used. If there is a problem with the
internal loop wiring, the front panel meter 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).
This error code is not implemented at this time.
The AT30 rectifier heat sinks assemblies (A16) are equipped with over-
temperature thermostats (S2x). On startup, the AT30 tests the
thermostats, and displays E 12 if one or more are defective.
Check each each thermostat (S2x) for continuity. Disconnect the wiring
and resistor (R28x) from the quick-connect terminals. The thermostat
switch should be closed (NC) at normal room temperature.
One or more of the rectifier thermostats (S2x) has detected an over-
temperature condition. If the rectifier is equipped with fans (B2x), check all
fans for proper operation. Also make sure that all enclosure vents are
clear of debris, and that the ambient temperature is below 122 °F / 50 °C.
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.
If the AT30 was accidentally left in manual equalize mode, switch the unit
back to float, manual equalize timer, or auto-equalize timer mode,
according to Section 2.2.4 on Page 27.
If you set the equalize timer to zero (0) hours, the equalize mode is
inhibited. When you try to put the AT30 into equalize mode from the front
panel controls, the meter displays status code A 02. If you want to enable
the equalize mode, set the equalize timer to one (1) or more hours.
While using temperature compensation, the AT30 internal dc voltmeter
cannot be calibrated. Disconnect one wire of the TempCo cable from TB8
on A1. Restart the AT30 and perform the voltmeter calibration according
to Section 2.3.7 on Page 37. Reconnect the TempCo cable to TB8, and
restart the AT30. See Application Note (JD5003-00) for further details.
The AT30 is in Current Limit mode. This will occur when there is a large
load on the dc bus, or the battery has discharged. Make sure that the
AT30 is sized correctly for the application, and that the Current Limit value
has been set correctly. See Section 2.3.5 Page 35.
SERVICING THE AT30
Repair Procedure
at normal room temperature (77 °F / 25 °C). If the
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