Common Battery; External Battery Cabinet - Delta Modulon DPH Series User Manual

3.4 Common Battery (Only for Parallel UPSs Connecting to
the Same External Battery Cabinet(s))
To save on your costs and installation space, the parallel UPSs can share their connected
external battery cabinet(s). For common battery application, please install a protective
device between each parallel UPS and its connected external battery cabinet(s). For
relevant information about the protective device, please refer to 5.6 External Battery
Cabinet Connection Warnings. Please see Figure 3-29 for two parallel UPSs sharing one
external battery cabinet as an example.
If the parallel UPSs share the external battery cabinet(s), you should use the LCD to set up
relevant parameters such as 'Battery Type', 'Capacity', 'Battery Strings', 'Float Charge
Voltage', 'Equalized Charge Voltage'*
please refer to 7.10.4 Battery & Charging Setting.
Modulon DPH Series
NOTE:
1. The 'common battery' information in this chapter is only applicable to the UPS
using lead-acid batteries. If you need information about the lithium-ion batteries,
please refer to the user manual of the lithium-ion batteries or contact Delta
customer service.
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
NOTE:
1. For common battery application, please use the LCD to set each UPS's
float charge voltage (default: 272V) the same, each UPS's equalized charge
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voltage* (if applicable, default: 280V) the same, and each UPS's battery strings
and charge current (Max) even. For example:
A. When (1) two UPSs are paralleled and share one external battery cabinet,
(2) the lead-acid batteries are used, (3) the battery capacity is 200AH, (4)
there are a total of 4 battery strings, and (5) the charge current (Max) is 80A,
please use the LCD to set each UPS's 'Battery Type' as 'VRLA', 'Capacity'
as 200AH, 'Battery Strings' as 2, and 'Charge Current (Max)' as 40A.
B. When (1) three UPSs are paralleled and share one external battery cabinet,
(2) the lead-acid batteries are used, (3) the battery capacity is 300AH, (4)
there are a total of 3 battery strings, and (5) the charge current (Max) is 90A,
please use the LCD to set each UPS's 'Battery Type' as 'VRLA', 'Capacity'
as 300AH, 'Battery Strings' as 1, and 'Charge Current (Max)' as 30A.
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2. * The item 'Equalized Charge Voltage' mentioned above will change into
'Restore Voltage' if you use the Delta lithium-ion batteries with the optional
multifunctional communication card (MFC) being installed in the SMART slot
shown in Figure 4-13. For relevant information, please refer to 7.10.4 Battery
& Charging Setting.
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, 'Charge Current (Max)', etc. For more information,
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