Delta Modulon DPH Series User Manual page 94

If you need to parallel multiple units of external battery cabinets, please contact Delta
service personnel for relevant information. To extend backup time, you can parallel up
to four units of external battery cabinets to the UPS. Please note that (1) the number
of batteries in each of the parallel external battery cabinets and (2) the cable length of
each string of the batteries must be the same.
If you choose to install both the battery modules (optional; at maximum sixteen; at mini-
mum four) and the external battery cabinet (at maximum four), please ensure that the
brand and type of every battery are the same.
Use a voltage meter to measure whether the total voltage, after the external battery
cabinet connection, is around 12.5Vdc × the total number of batteries.
To ensure that the batteries are fully charged, please charge the batteries at least 8
hours before initial use of the UPS. The charging procedures are as follows.
1. Connect the UPS to the AC power source and the external battery cabinet. Please
refer to 5. Installation and Wiring.
2. Follow 6. Operation to turn on the UPS and the external battery cabinet. After the
UPS is turned on, the unit will automatically charge the batteries.
Battery parameters
No.
1
2
3
4
Modulon DPH Series
WARNING:
You can connect the critical loads to the UPS only after the batteries are
power to the critical loads connected when a power failure occurs.
Item
Charge Voltage
Charge Current
Low Battery Shutdown
Voltage
The Number of Batteries
Description
Float charge voltage: ±190Vdc (default)
Equalized charge voltage: ±196Vdc (default)
Default: ±1.5A (per power module)
Minimum: ±4A
Maximum: ±6A (15kVA)/ ±12A (30kVA) / ±18A
(45kVA) / ±24A (60kVA)
(per power module's Max. current: 6A)
±140Vdc (default)
12V x 28 PCS (default)
5-24