External Battery Cabinet Connection Precautions - Delta Ultron HPH Series User Manual

5.6 External Battery Cabinet Connection Precautions

WARNING:
You can connect loads to the UPS only after the batteries are fully charged. This
guarantees that the UPS can provide sufficient backup power to the loads
connected when a power failure occurs.
Battery

1. Charge Voltage
1) Float voltage: ±272Vdc (default)
2) Equalized voltage: ±280Vdc (default)
2. Charge Current
UPS
20kVA
30kVA
40kVA
3. Low Battery Shutdown: 200Vdc (default)
4. The Number of Batteries in One String: Default_12Vdc x 40 pcs (±20 pcs); Tolerance_12Vdc
x 30pcs (±15 pcs)~ 12Vdc x 46 pcs (±23 pcs).
NOTE:
1. When the number of batteries on one string is 30~34, the UPS must be derated.
For details, please contact Delta service personnel.
2. You can follow actual need to adjust the charge current from the minimum to the
maximum. Each adjustment level is 1A.
3. If you need to modify the charge current default setting and low battery shutdown
default setting, please contact your local dealer or Delta service personnel.
WARNING:
The parameter setting of the number of batteries must be consistent with the actual
number of batteries installed, otherwise the battery will be overcharged or under-
charged, and the battery may be damaged.
 Only use the same type of batteries from the same supplier. Never use old, new and different
Ah batteries at the same time.
 The number of batteries must meet UPS requirements.
Default
3A
3A
3A
42
Minimum
1A
1A
1A
Maximum
15A
15A
15A