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5.5 External Battery Cabinet Connection Warnings
NOTE:
The information of the battery parameters in this chapter may not be applicable to
the lithium-ion batteries. For relevant information, please refer to the manual of the
lithium-ion batteries. Whether you use the lead-acid batteries or the lithium-ion
batteries, please contact Delta service personnel for any battery/ battery cabinet’s
setup and configurations.
You should connect the UPS with at least one external battery cabinet to ensure that the
connected critical loads are protected when a power failure occurs. You can connect up to
four units of external battery cabinets to the UPS.
• To ensure that the batteries are fully charged, please charge for at least 8 hours before
the initial use of the UPS. This guarantees that the UPS can provide sufficient backup
power to the critical loads when a power failure occurs. The charging procedures are as
follows.
(1) Connect the main AC source and the external battery cabinet(s) to the UPS. Please
refer to
5.4 Wiring
.
(2) Follow
6. UPS Operation
to turn on the UPS and the external battery cabinet(s).
After that, the unit will automatically charge the batteries.
• To connect the external battery cabinet(s) to the UPS, please refer to
5.4 Wiring
and
Figure 5-47
.
• For the external battery cabinet’s grounding information, please refer to
Figure 5-20
and
Figure 5-45
.
•
Battery Parameters
No.
UPS Rating 300kVA 400kVA 500kVA 600kVA
Item Description
1
Charge Voltage
Float charge voltage: ± 272Vdc (default)
Equalized charge voltage: ± 280Vdc (default)
2
Charge Current
Default: ± 10A
± 90A
(Max.)
± 120A
(Max.)
± 150A
(Max.)
± 180A
(Max.)
3
Low Battery Shutdown Voltage ± 210Vdc (default)
4
Battery Quantity 12V × 40 PCS (default)
• The charge current is adjustable from 10A to the maximum. Each adjustment level is 1A.
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