Toshiba 4200FA CT/XT user manual System Protection Features, System Protection Functions

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TOSHIBA

7.0UPS Protection System

7.1System Protection Features

The preceding one-line schematic illustrates the electrical locations of the protection devices on all UPS models.

Input

Power

Input Abnormal

 

MCCB

Isolating

Converter

XFMR

 

MBS

Bypass

Inverter

Overcurrent

Overload

Output

Power

Overcurrent Low Batteryt

Overvoltage/

Charger/Undervoltage

Chopper

External

Batteries

7.2System Protection Functions

The following chart shows the built-in UPS fault protection functions on all models.

Built-in UPS Fault Protection Functions

Protection Item

Inverter Over-voltage

Inverter Under-voltage

(IVOV)

(IVUV)

 

 

UPS Overload

 

LCD Message

INVERTER

INVERTER

OUTPUT OVERLOAD

 

OVERVOLTAGE

UNDERVOLTAGE

 

 

 

 

 

Cause

Control Malfunction;

Feedback Error

Overload or short circuit at the load.

 

 

 

 

 

Inverter Overload: Transfer to bypass; Inverter

 

Operation Mode

Bypass Operation; Chopper and Inverter Stopped

stopped.

 

after Fault

Bypass Overload: Inverter, Chopper, and Bypass

 

 

 

 

 

 

 

 

stopped.

 

Audible Alarm

 

Yes: See Audible

Alarm Functions

 

Visible Alarm

Red Fault Lamp “on”

Inverter OL: No Fault Lamp

 

Bypass OL: Fault Lamp “on”

 

 

 

 

 

 

Relay Contact

Fault Relay closed; Bypass Relay closed

Inverter OL: Bypass Relay closed

 

Bypass OL: Bypass Relay open and Fault relay

 

Alarm

 

 

 

closed

 

 

 

 

 

 

Auto-Retransfer

 

No

Inverter OL: Yes, if bypass ok

 

 

Bypass OL: No

 

 

 

 

 

 

 

 

 

 

 

 

Protection Item

 

Low Battery Voltage

Low Battery Voltage

Inverter Output Current Limit

 

 

(Level-1)

(Level-2)

 

 

 

 

 

LCD Message

Line-4 will read

DC UNDERVOLTAGE

OUTPUT OVERLOAD

 

“BATTERY LOW”

 

 

 

 

 

 

Cause

Battery Discharge

Battery Shutdown Level

Load Inrush current

 

reached

 

 

 

 

 

 

Operation Mode

Battery Discharge

Shutdown:

If Bypass ok, transfer to bypass; if not, current-limit

 

after Fault

No Output

mode

 

 

 

Audible Alarm

 

Yes: See Audible

Alarm Functions

 

Visible Alarm

Battery Lamp Flickers

NO

NO

 

Relay Contact

Low Battery Relay

 

Bypass Relay closed

 

Alarm

closed

 

 

 

 

 

Auto-Retransfer

 

No

Yes, if bypass ok

4200FA CT/XT User’s Manual

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Contents 4200FA CT/XT 4200FA CT/XT Important Notice Table of Contents UPS Protection System Purpose and Scope of Manual General Safety Instructions Equipment Warning Labels Hazardous Voltages Toshiba 15 kVA 25 kVA 30 kVA 50 kVA Rated Output Rating Important Safety InstructionsToshiba To be performed by Qualified Personnel only Conserver CES Instructions Power Conditioning Power BackupTheory of Operation Application and UseUnpacking the new UPS equipment 15/25/30 kVA Unpacking the new UPS equipment 50 kVA Storage of UPS equipment Inspection of the new UPS equipment After UnpackingAvoid Before storingEquipment Placement Operating Precautions System Preparation Pre-PowerPower Connections 15/25/30 kVA with Internal Batteries UPS Connections Power ConnectionsPower Connections 15/25/30 kVA with Internal Transformer Maximum Wire Size is 2 AWG Phase a B C 15 kVA 25 kVA 30 kVA Input H1 H2 H3Torque Torque Inch-lbs L1 L2 L3 N L1-L3Toshiba 15/25/30 kVA Battery ConnectionPower Connections 50 kVA 250MCM In-lbs Maximum Wire Size for Battery is 250MCM Battery + 50 kVAPhase a B C 50 kVA Input H1 H2 H3 H1 H2 H3Power Connection Cable Routing and Conduit Placement 50 kVA Terminal # AWG Torque Control Circuit and External Interface Connections 50 kVACommunication Interface Remote Contact UPS Shutdown via RS-232C 2 RS-232C15 kVA 25 kVA 4200FA 15/25 kVA w/Internal Transformer 30 kVA 4200FA 30 kVA w/Internal Transformer 50 kVA 4200FA 50kVA w/Internal Transformer Power flow in AC Input Mode AC Input Mode Normal OperationPower flow in Bypass mode for the Alternate Input Models Bypass ModePower flow in battery backup mode Battery Backup ModeBattery Low Voltage Tolerances Battery Backup Time and Discharge ProcessModels 15/25/30/50 kVA Rated Battery Voltages Battery RechargingFloat MinFront Panel Layout All Units EPO Emergency Power Off FunctionCondition Audible pattern Audible Alarm FunctionsLED Light Emitting Diode Functions LCD Liquid Crystal Display Functions LED Light Emitting Diode System StatusLine-1 System Messages Display Message TranslationLine-3 System Messages Line-2 System Fault MessagesLine-4 System Messages Displayed Message TranslationUPS Start UP Please Wait Initial Battery ChargeStart-up Procedure Maintenance Bypass Procedure Shutdown ProcedureFrom UPS to Maintenance Bypass Keypad Overview Buzz18.2 Key Functions 6.18.1 Moni18.3 OUT MENU, F1, ENTER, UP, & Down Keys Batt KeyBatt Test Key Buzz Stop Key Reset KeyAdjusting the Buzzer Volume Menu Data Screens Settings for Calendar and ClockSettings for Display Duration Serial Com Station Address Run Switch SelectEqualize Charge Mode Select Output Voltage AdjustmentOverload Operation Reset to Default SettingsBackup History and Fault History Backup History # #MIN##SEC VB=324V BT *PF OL System Protection Functions System Protection FeaturesStart-up Preventive MaintenanceRecommended Semi-Annual maintenance Parts ReplacementExternal Dimensions 15/25/30 kVA External Dimensions 50kVA Shipping Dimensions All 50 kVA models Standard With crate Page Industrial Division

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