Mitsubishi Electronics 9700 Series technical manual B Internal Static Bypass Line FIGURE

MITSUBISHI	9700 SERIES UPS	Page Number:
ELECTRIC	OWNERS / TECHNICAL MANUAL	1-4

B) Internal Static Bypass Line (FIGURE 1.2)

The Internal Static Bypass line is a Hard wired line through CB3, contactor 52S which supplies the critical load with unconditioned input power. The purpose of this line is to route power to the critical load while the UPS module is de-energized during Start-up before the system is fully operational.

FIGURE 1.2 Single Line Diagram- Bypass Operation
CB			Static Transfer
AC Bypass
Input			Switch
Use supplied	CB3
MCCB
	CONVERTER	INVERTER	52S
AC input			Output
CB1			52C

CB2	Power Flow
	Not in Use

Battery cabinet

UPS Module

C) Inverter supply at battery operation (FIGURE 1.3)

FIGURE 1.3 Single Line Diagram - Battery Operation
CB			Static Transfer
AC Bypass
Input			Switch
Use supplied	CB3
MCCB	CONVERTER	INVERTER
			52S
AC input			Output
CB1			52C
		CB2	Power Flow
			Not in Use
Battery cabinet			UPS Module

If the input power is interrupted, the battery will immediately supply the DC power required by the Inverter to maintain continuous AC power to the load. A fully charged battery will provide power for the specified time at the rated load, or longer, at a reduced load.

MITSUBISHI ELECTRIC 9700 SERIES UPS