Mitsubishi Electric 9900CX SERIES User Manual

MITSUBISHI ELECTRIC 9900CX SERIES UPS
9900CX SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
1-11
In the event of a load overcurrent, the UPS transfers to bypass without interruption to the critical
load. In the case of the Parallel Operation, all UPS will transfer to bypass without interruption to
the critical load.
The internal control system determines the operation of the two paths, with the load powered
from the inverter being the normal operation.
C) Battery operation: Load Power supplied by UPS battery.
Figure 1.3
Single Line Diagram - Battery Operation
Referring to Figure 1.3: In the event of AC input source failure or interruption, the UPS
Converter(s)* will de-energize and the UPS battery(s)* will immediately discharge and supply
DC power to the Inverter to maintain continuous AC power to the load. This operation will
continue until:
Bypass Module
CB3
CONVERTER / INVERTER
CHARGER
52C
Static Transfer
Switch
52S
CB1
CB2
UPS Module
CONVERTER / INVERTER
CHARGER
52C
CB1
CB2
UPS Module
CONVERTER / INVERTER
CHARGER
52C
CB1
CB2
UPS Module
UPS
CABINET
AC
input
Bypass
Input
CB
supplied
MCCB
User
supplied
MCCB
CB
Power Flow
Not in Use
Output
Battery
Cabinet
External
BATTERY
CB
～
～ ～ ～
3 ～ 6 UPS
modules

Mitsubishi Electric 9900CX SERIES Specifications

General

Brand	Mitsubishi Electric
Model	9900CX SERIES
Category	Power Supply
Language	English