Huawei UPS5000-E Series User Manual page 115

UPS5000-E-(25 kVA-125 kVA)
User Manual (25 kVA power modules)
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Dry contact settings
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Specify dry contact settings on the following cards:
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Set the dry contact parameters, as shown in
Issue 06 (2020-01-10)
When the first two parameters are set to Enabled, an alarm is generated when the backup
time or remaining capacity is less than the alarm threshold. The backup time alarm
threshold is 3–30 min, and the default value is 5 min. The remaining capacity alarm
threshold is 5%–50%, and the default value is 20%.
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)
By default, 0.1C EOD (V/cell) is set to 1.80, 0.3C EOD (V/cell) to 1.75, 0.5C EOD
(V/cell) to 1.67, and 1.0C EOD (V/cell) to 1.60. These values are calculated in real time
based on the discharge currents.
Intelligent hibernation
If this parameter is set to Enable, the intelligent battery hibernation function is enabled.
Class 1 grid hiber. time (d) and Class 2 grid hiber. time (d)
Set the hibernation time based on the power grid type. In hibernation mode, batteries are
not charged or discharged, which extends the battery lifespan. The Class 1 grid hiber.
time value range is 0–30 days, and the default value is 13 days. The value 0 indicates no
hibernation. The Class 2 grid hiber. time value range is 0–15 days, and the default value
is 6 days. The value 0 indicates no hibernation.
Chg. volt. over range point (%) and Dis. volt. over range point (%)
The parameters check whether the batteries in each battery string have the same charge
voltage and discharge voltage. When a value exceeds the specified range, an alarm is
generated.
The calculation formula is: (Charge/Discharge voltage – Average voltage)/Average
voltage x 100%.
Set the dry contacts that you need to use. Otherwise, the UPS may not run properly.
When you disable a dry contact card, its dry contact signals are disabled.
After you enable a dry contact card, its dry contact signals can be displayed on the LCD.
Disable all the dry contacts for a dry contact card that is not connected and all the dry
contacts that are not used to prevent false alarms.
( ) encloses a unit, and [ ] encloses silk screen.
Dry contact card (MUE05A): provides dry contact signals for the battery grounding
failure detector, D.G., BCB box, and PDCs.
Backfeed protection board (MUE06A): provides backfeed protection signals. You need
only to enable or disable this board.
Monitoring interface card (MUS05A): provides four routes of configurable output dry
contact signals.
Dry contact extended card (MUE07A): provides two routes of input signals and one
route of output signals.
Copyright © Huawei Technologies Co., Ltd.
Figure 4-43 to Figure 4-49.
4 User Interface
107