Cadex C4000 SERIES, User Manual

Page: 45 / 152

Fault Codes
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5. Temperature Criteria (Optional)
If batteries are serviced under extreme temperature
conditions, temperature sensing is recommended.
Temperature sensing is optional and is not required
under normal temperature conditions.
Code 52
LOW VOLTAGE (ZONE
1 DELTA TEMP)
Code 54
DELTA TEMP CHARGE
TERMINATION
Code 56
BAITERY
HOT
(ZONE 1)
Code 58
BAITERY
HOT
(ZONE 2)
Reason
Charge is terminated in Zone 1 through Delta
Temperature. Battery voltage is too low. Cells exhibit a
rapid rise in temperature. Program is terminated.
What to do
Discard battery.
Reason
Charge is terminated due to rapid rise of cell
temperature in Zone 2. Battery voltage is normal.
Program proceeds to next step. Battery is considered
fully charged.
Full-charge detection through Delta Temp and Negative
Slope coincide at about the same time when the battery
reaches full-charge.
Either method may terminate the
fast-charge. •
What to do
Use battery as normal.
Reason
Battery temperature has reached 45°C (113°F)
in Zone 1. Battery voltage is too low. Program is
terminated.
What to do
Discard battery.
Reason
Battery temperature has reached 45°C (113°F)
in Zone 2. Battery voltage is normal. Program proceeds
to next step. Battery is considered fully charged.
Possible reasons:
• Battery is old and has poor performance
• Battery has high self discharge
• High internal resistance (common to some ultra high
capacity NiCd cells)
What to do
Observe self-discharge. If self-discharge is
less than 30% in 24 hours and the capacity reading is
acceptable, the battery is usable.
5-10
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