External Battery Cabinet Connection Warnings - Delta DPH Series User Manual

5.5

External Battery Cabinet Connection Warnings

NOTE:
1. 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.
2. 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.
WARNING:
1. Before performing battery/ battery cabinet installation, wiring and replacement,
please turn off each external battery cabinet's breaker (Q5) to completely
disconnect the battery power from the UPS.
2. A battery can present a risk of electric shock and high short-circuit current.
Servicing of batteries and battery cabinets must be performed or supervised
by qualified service personnel knowledgeable in batteries, battery cabinets and
the required precautions. Keep unauthorized personnel away from batteries
and battery cabinets.
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
eight units of external battery cabinets to the UPS.
• To ensure that the batteries are fully charged, please charge the batteries for at least 8
hours before initial use of the UPS. The charging procedures are as follows.
1. (A) Connect the UPS to the external maintenance bypass cabinet (user-supplied)
and external battery cabinet(s), and (B) connect the main AC source and bypass AC
source (for dual input application only) to the external maintenance bypass cabinet.
Please refer to 5.4 Wiring.
2. Follow 6. UPS Operation to turn on the external maintenance bypass cabinet, UPS
and the external battery cabinet(s). After that, the batteries will be automatically
charged.
WARNING:
You can connect the critical loads to the external maintenance bypass
cabinet only after the batteries are fully charged. This guarantees that the
external maintenance bypass cabinet can provide sufficient backup power
to the critical loads connected when a power failure occurs.
• To connect the external battery cabinet(s) to the UPS, please refer to 5.4 Wiring.
• For the external battery cabinet's grounding information, please refer to Figure 5-19 and
Figure 5-22.
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