OPTI-UPS DS120KC33 User Manual
Page 13
2-3 Introduction on function of main module
2-3-1 Rectifier / battery charger
(1) Rectifier / battery charger module is using SCR components for transforming AC to DC voltage
and to recharge the batteries.
(2) In Rectifier / battery charger module, double control method to CPLD and DSP are combined to
keep rectifier and battery charger more steady and reliable.
(3) Has complete system for protection from over voltage.
(4) Detection on phase sequence error or single phasing.
(5) Equipped with function to soft start the DC voltage during power up or return of utility power.
(6) Designed with 3 phases and 6 pulses. Optional six phase 12 phase pulse is available.
(7) It supports float charge and equalization charge for maintenance free battery. Floating charge
voltage is DC 420V, equalization charge voltage is DC 430V, floating charge voltage is 410V.
(8) It can conduct self test even in on line mode.
(9) Charging current is controlled by LCD panel setting.
Fig. 2-3-1(actual model assembly diagram)