Mitsubishi 2033D SERIES technical manual Overview, Normal Operation

Page 11

MITSUBISHI	2033D SERIES UPS	Page Number:
ELECTRIC	OWNERS / TECHNICAL MANUAL	1-5

1.3Overview

The UPS provides two power paths between the utility source and the critical load.

Figure 1.1 shows the path for normal operation, with the load powered from the inverter. Figure 1.2 shows the path for bypass operation, with the load supplied through the static bypass line.

Figure 1.3 shows the path for battery operation, with the load supplied from the inverter.

A) Normal Operation.

FIGURE 1.1 Single Line Diagram - Normal Operation. Load powered by inverter

CB

AC Bypass

Input

CB

AC input

User supplied

		Static Transfer		Maintenance
		Static Transfer		Bypass
		Switch		Bypass
		Switch		Switch
	52RS			Switch
	52RS
	CONVERTER	INVERTER
				Output
52RC	FI	FO	52C	52CS
				52CS
		FB
		72B		Power Flow
				Power Flow
	BATTERY			Not in Use
	BATTERY	50kVA,	80kVA:
		50kVA,	80kVA:	UPS Module
		External Battery		UPS Module

During normal operation, the path through the inverter is used to power the load.

Referring to Figure 1.1: Input AC power is converted to DC by the Converter. DC power is utilized to charge the UPS battery and to provide power to the Inverter. The Inverter converts the DC power to clean AC power to supply the critical load.

The conversion - inversion process eliminates any voltage transients or fluctuations existing in the input power before it reaches the critical load.

*The AC Bypass Input circuit breaker (MCCB) for protection of the UPS and cables are field supplied and field installed. (See WARNING 2 on page 1-2)

MITSUBISHI ELECTRIC 2033D SERIES UPS

Image 11

Contents ALN-H0963 Preface Table of Contents UPS Module Information List of TablesList of Figures How to use this Manual Introduction Important Safety Instructions Retain These InstructionsCapacity kVA General Mitsubishi 2033D Series UPS Normal Operation OverviewInternal Static Bypass Line Single Line Diagram Battery Operation Inverter supply at battery operationPCB External Contact Signal Terminal IOAU-05 Mitsubishi 2033D Series UPS Specifications Static Bypass Input AC InputRating of Contactors and Fuses 540V 48A Operator Controls and IndicatorsLoad on bypass Load on Bypass green Battery operation Battery OP. yellowEPO button Emergency Power Off button LED Display Load on inverter Load on Inverter greenStart/Stop screen Figure Liquid Crystal DisplayMenus Measurement Menu Figure Start/Stop screenSetup Menu Figure 11 Main screen Input Power Failure13 Main screen Fault indication Fault Indication FigureTN1 External Signal Terminal BlockRemote EPO TN216 Control Wiring for External Contacts Output Contacts for external alarm annunciationTerminals 3 to 4 Remote Inverter Stop input terminal IN2 Terminals 33 to 34, 35 to 36 Minor Fault contact OUT8Terminals 37 to 38, 39 to 40 Total Alarm contact OUT9 Input Contacts for remote access of UPSTerminals 13 to 14 Charger IL. contact input IN7 Terminals 5 to 6 Battery Temp. High contact input IN3Terminals 7 to 8 Power Demand Command contact input IN4 Terminals 11 to 12 Asynchronous contact input IN6Pin Not used External communication connectorMitsubishi Electric 2033D Series UPS Mitsubishi 2033D Series UPSElectric Owners / Technical Manual BatteryProcedure for Cable Connections External Battery SupplyMitsubishi 2033D Series UPS Recommended cable size and torque requirements Crimp Type Compression Lug AUPS Terminal Designation 30kVA UPS BN,BP BN BP AC Bypass Input Critical Load Cabinet UPS-1 UPS-2 IOAU-05 TN2IFAU-01 EPO Emergency Power Off Procedure Operating Procedures UPS Start-up ProcedureUPS Shutdown Procedure Transfer of load from maintenance bypass to inverter Maintenance bypass set-up proceduresTransfer of load from inverter to maintenance bypass Electric Owners / Technical Manual Response to UPS Failure UPS FaultUPS Component Parts Parts ReplacementContact Mitsubishi Electric Automation, Inc. at Fault CodesMitsubishi Code ListINV. or Conv Inverter Overload DC circuit failure Mitsubishi Electric Automation Inc 847