Huawei UPS5000-A-600K-SC User Manual page 160

UPS5000-A-(600 kVA-800 kVA)
User Manual (40 kVA)
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Issue 03 (2017-10-16)
Set the battery equalized voltage. The value can be 2.30–2.40 V/cell, 2.35 V/cell by
default. The value is configurable in any mode.
Transfer-to-equalized charging cur. coef. (C10)
The battery enters equalized charge state when the battery current exceeds this parameter
value. The value range is 0.02–0.08, and the default value is 0.05.
Automatic equalized charging
When the value is Enable, the UPS automatically changes the battery management
status to equalized charging based on the charge current and float charge time.
Forced equalized charging protection time(h)
When batteries are continuously under float charging or hibernation, you can enable
forced equalized charging. When the forced equalized charging time reaches the value of
this parameter, float charging starts.
Equalized charging protection interval (d) and Scheduled equalized charging
interval (d)
After batteries transfer from equalized charging to float charging, if the batteries do not
discharge, equalized charging starts only after the float charging time reaches Equalized
charging protection interval. After equalized charging is complete, scheduled equalized
charging starts when the non-equalized charging time exceeds Scheduled equalized
charging interval.
Float volt. temp. comp.
Option to correct the float voltage based on the battery temperature when a battery
temperature sensor is connected. The value is configurable in any mode.
Float volt. temp. comp. coef. (mV/° C· cell)
Correction coefficient during float voltage temperature compensation.
Max. batt. dis. time (h)
Set the maximum battery discharge time. When the discharge time reaches the value, the
UPS powers off. The battery discharge time can be set only to 0 hours or a value in the
range 16–48 hours. The default value is 24 hours. If the time is set to 0 hours, battery
discharge protection is not implemented.
Sched. shallow dis. test
When certain conditions are met, the charger shuts down, and batteries supply power to
loads. The system records the battery discharge data as the reference for battery capacity
and lifespan.
Shallow dis. test dis. ratio (%)
Set the proportion of the discharge capacity to the total discharge capacity. The value can
be 10%–50%, 20% by default. The value is configurable in any mode.
Undertemp. alarm thresh. (° C) and Overtemp. alarm thresh. (° C)
Battery temperatures can be monitored in a timely manner. If a battery overtemperature
alarm is detected, the charging current limit decreases to 0.03 CA. Battery charging stops
if a battery overtemperature protection alarm (when the temperature reaches the high
temperature threshold plus 3° C) is generated. The Undertemp. alarm thresh. can be set
from –20º C to +5º C and the default value is –5º C. The Overtemp. alarm thresh. can be
set from 35º C to 55º C and the default value is 50º C.
Backup time warning and Remain. cap. warning
When the first two parameters are set to Enable, an alarm is generated when the backup
time or remaining capacity is less than the alarm threshold.
Dis. cur. 0.1C EOD (V/cell), Dis. cur. 0.3C EOD (V/cell), Dis. cur. 0.5C EOD (V/cell),
and Dis. cur. 1.0C EOD (V/cell)
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