Toshiba 4200FA user manual System Protection Features, System Protection Functions

Page 60

TOSHIBA

6.0 UPS Protection System

6.1System Protection Features

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

Input

Abnormal

MBS

Overheat

Isolation

Transformer

Model

Input

Power

Bypass

ConverterInverter

MCCB

Chopper

Overcurrent

Overload

Output

Power

Over-voltage/

Under-voltage

Low Battery

Batteries

6.2System 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

 

UPS Overload

 

 

 

(IVOV)

(IVUV)

 

 

 

 

 

 

 

 

 

LCD Message

INVERTER

INVERTER

 

OUTPUT OVERLOAD

 

OVERVOLTAGE

UNDERVOLTAGE

 

 

 

 

Overload or short circuit at the load.

 

Cause

Control Malfunction;

Feedback Error

 

Operation Mode

 

 

 

Inverter Overload: Transfer to bypass; Inverter

 

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

 

 

 

Inverter OL: Bypass Relay closed

 

Fault Relay closed; 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

 

 

 

 

 

 

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

 

Operation Mode

Battery Discharge

Shutdown:

 

 

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

 

 

 

 

 

Yes, if bypass ok

 

Auto-Retransfer

 

No

 

59

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Contents 4200FA Toshiba Uninterruptible Power Supply Manual’s Purpose and Scope General Safety Instructions Special Symbols Equipment Warning Labels Toshiba Table of Contents UPS Protection System Important Safety Instructions 15 kVA 25 kVA 30 kVA 33 kVA 50 kVA Rated Output RatingToshiba Conserver CES Instructions Power Backup Power ConditioningTheory of Operation Application and UseUncrating the new UPS equipment 15/25/30/33kVA Uncrating the new UPS equipment 50kVA Inspection of the new UPS equipment After Uncrating Storage of UPS equipmentAvoid Before storingEquipment Placement System Preparation Pre-Power Operating PrecautionsPower Connections 15/25/30/33 kVA with Internal Batteries Power Connections 15/25/30/33kVA with Internal Transformer Phase a B C 15 kVA 25 kVA 30/33 kVA Input H1 H2 H3 Maximum Wire Size is 2 AWGTorque Torque L1 L2 L3 Inch-lbs L1-L3Power Connection Cable Routing and Conduit Placement Battery Connection 15/25/30/33 kVAPower Connections 50 kVA H1 H2 H3 N L1 L2 L3 N +Battery + 50 kVA 250MCM In-lbs Maximum Wire Size for Battery is 250MCMPhase a B C 50 kVA Input H1 H2 H3 H1 H2 H3Power Connection Cable Routing Control Circuit and External Interface Connections Terminal # AWG TorqueCommunication Interface Remote Contact 2 RS-232C UPS Shutdown via RS-232C15 kVA 25 kVA 4200FA 15/ 25kVA w/Internal Transformer 30 kVA 33 kVA 4200FA 30/ 33kVA w/Internal Transformer 50 kVA 4200FA 50kVA w/Internal Transformer Operating the UPS AC Input Mode Normal Operation Power flow in AC Input Mode Bypass ModePower flow in battery backup mode Battery Backup Time and Discharge Process Battery Low Voltage TolerancesModels 15/25/30/33/50 kVA Battery Recharging Rated Battery VoltagesCharge EPO Emergency Power Off Function Audible Alarm FunctionsFront Panel Layout All Units Condition Audible pattern LED Light Emitting Diode Functions LED Light Emitting Diode System StatusLine-2 System Fault Messages LCD Liquid Crystal Display FunctionsLine-1 System Messages Display Message TranslationLine-4 System Messages Line-4 MessagesDisplayed Message Translation DcocInitial Battery Charge UPS Start UP Please WaitStart-up Procedure Shutdown Procedure Output Shut Down Output VOLTAGE= 0V CURRENT=LOW/LOW/LOW%Maintenance Bypass Procedure From UPS to Maintenance BypassStop Keypad OverviewKey Functions Moni 21.221.3 OUT Batt Key MENU, F1, ENTER, UP, & Down KeysBatt Test Key Reset Key Buzz Stop KeyMenu Data Screens Settings for Calendar and Clock Adjusting the Buzzer VolumeSettings for Display Duration Run Switch Select Serial Com Station AddressOutput Voltage Adjustment Charge Mode SelectReset to Default Settings Overload OperationBackup History and Fault History Backup History # #MIN##SEC VB=324V BT *PF OL System Protection Features System Protection FunctionsPreventive Maintenance Start-upParts Replacement Quarterly MaintenanceSemi-Annual maintenance External Dimensions 15/25/30/33kVA External Dimensions 50kVA Shipping Dimensions and Weights Toshiba
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