Delta Modulon DPH Series User Manual page 66

NOTE:
1. The charge current is adjustable from 5A to the maximum, 1A per step.
2. If you need to modify the default charge current setting and default low
battery shutdown setting, please contact your local dealer or service
personnel.
3. Follow on-site requirements to choose 12V × 30/ 32/ 34/ 36/ 38/ 40/ 42/
44 or 46 PCS of batteries. Change of the battery quantity will influence
the applied specifications. For battery selection, installation and
replacement, please contact your local dealer or customer service.
4. You must set up the 'Battery Rating Voltage' , 'Battery Strings' and 'Capacity'
on the LCD according to on-site application. Otherwise, the batteries will
be over-charged, not fully charged or even seriously 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 the UPS requirements.
• Do not connect the batteries in reverse.
• Use a voltage meter to measure whether the total voltage is around 12.5 Vdc × the
total number of batteries after the batteries are connected in series.
• The default battery quantity is 40 PCS of 12V batteries connected in series. The
external battery cabinet's neutral (N) is to be connected to the middle of the 20th
and 21st batteries.
Delta UPS DPH 50-200kVA
Figure 5-16: External Battery Cabinet Connection
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