Delta Modulon DPH Series User Manual page 91

3Ø4W
Main AC Source
3Ø4W
Bypass AC Source
4
Use the provided parallel cable to connect the parallel ports on the parallel units.
Please refer to Figure 4-3 for the parallel port location.
5
Follow Figure 5-15 to ground the parallel UPS units, external battery cabinet(s)
and connected critical loads.
AC Input
Terminals
Bypass Input Terminals
UPS 1
AC Input
Terminals
Bypass Input Terminals
UPS 2
AC Input
Terminals
Bypass Input Terminals
UPS 8
(Figure 5-16: Parallel Units Dual Input Wiring Diagram)
NOTE:
For dual input, the UPS will not work normally if the main AC power's
connected to the AC Input neutral (N) terminal shown in Figure 5-8.
WARNING:
each UPS's 'Parallel Group ID' (1 or 2) and 'Parallel ID' (1 ~ 8) through
the LCD. Otherwise, the parallel UPSs cannot be started. Please refer to
7.10.5 Parallel Setting.
5-19
5 Installation and Wiring
UPS Output
Terminals Daisy
Chain
Method
Parallel Port
Parallel Port
UPS Output
Terminals
Parallel Port
Parallel Port
UPS Output
Terminals
Parallel Port
Parallel Port
3Ø4W
Loads