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Thomas & Betts 9395 5.3.8 Charger control, 5.3.9 Using the UPS LOAD OFF pushbutton

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5.3.8 Charger control

To turn the battery charger on or off, perform the following procedure:

1.Press the CONTROLS pushbutton on the main menu bar.The System Control screen appears.

2.Press the pushbutton to display System Controls Screen 2.

3.Press the CHGR ON or CHGR OFF pushbutton on the System Controls menu bar to toggle the charger on or off.

5.3.9 Using the UPS LOAD OFF pushbutton

A UPS Load Off is initiated by the LOAD OFF pushbutton from the main menu bar or the System Controls menu bar.This pushbutton can be pressed to control the UPS output.The UPS LOAD OFF pushbutton de-energizes the critical load and powers down the UPS.

The UPS (including Bypass) remains off until restarted.

To use the LOAD OFF pushbutton:

1.Press the LOAD OFF pushbutton.

The Load Off screen appears, providing a choice to proceed or abort the shutdown.

CAUTION

All power to the critical load is lost when the LOAD OFF is selected in the following step. You should use this feature only when you want to de-energize the critical load.

2.To shut down the UPS, press LOAD OFF from the Load Off menu bar, and hold for three seconds.To abort the shutdown, press CANCEL. When LOAD OFF is selected and held for three seconds, the input, output, and bypass backfeed contactors open, the battery breaker or disconnect is tripped, and the power module is turned off.

CAUTION

Do not attempt to restart the system after Load Off until the cause of the shutdown has been identified and cleared.

3.To restart the UPS after pressing the LOAD OFF pushbutton, follow the procedure in paragraph 5.3.1 or 5.3.2.

1027212

UPS 225 - 275 kVA

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Revision B	User’s and Installation Guide

Contents

Powerware 9395 UPS 225–275kVA User’s and Installation Guide IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS Powerware 9395 UPS 225–275kVA User’s and Installation Guide Page 1 Introduction 1.1 UPS standard features Page 1.2 Options and accessories 1.3 Basic system configurations 1.4 Using this manual 1.5 Conventions used in this manual 1.6 Symbols, controls, and indicators 1.7 For more information 1.8 Getting help 2 UPS installation plan and unpacking 2.1 Creating an installation plan 2.2 Preparing the site Model Weight kg Table 2-1.UPS cabinet weights From top of cabinet From front of cabinet Figure 2-1.UPS cabinet dimensions (front view) Figure 2-2.UPS cabinet dimensions (right side view) Page 2.2.2 UPS system power wiring preparation Basic unit rating at 0.9 lagging pF load Units Rating 50/60 Hz Input and output voltage AC input to UPS rectifier (0.98 Min. pF) Terminal function Terminal Function Bus landing Bolt size Load rating Table 2-8.Recommended bypass and output circuit breaker ratings Table 2-9.Recommended DC input circuit breaker ratings 2.2.3 UPS system interface wiring preparation Page 2.3 Inspecting and unpacking the UPS cabinet Figure 2-8.Powerware 9395 UPS (225–275kVA) cabinet as shipped on pallet 3 UPS system installation 3.1 Preliminary installation information 3.2Unloading the UPS cabinet from the pallet and mechan- ical installation •Do not tilt cabinets more than 10° from vertical •Lift the cabinet only with a forklift or damage may occur Figure 3-1.Removing left side shipping bracket 3.3 Battery cabinet installation 3.4 Installing UPS external and battery power wiring Figure 3-3.Conduit and wire entry locations Figure 3-4.UPS power terminal locations Figure 3-5.UPS power terminal detail AA 3.5 Installing interface connections Figure 3-6.Typical alarm relay connection Figure 3-7.Interface terminal locations Terminal TB1 Name Descrition Terminal TB2 Terminal TB3 Figure 3-8.Interface terminal detail AA Figure 3-9.Terminal blocks TB1, TB2, and TB3 connector assignments 3.5.2 TB1 battery interface connections Figure 3-10.Typical battery interface connection 3.5.3 X-Slotconnections 3.6 Installing a remote EPO switch Figure 3-12.Remote EPO switch From remote EPO switch To customer interface Remarks Terminal board TB1 in UPS cabinet Figure 3-13. Normally-Openremote EPO switch wiring Figure 3-14.Normally closed remote EPO switch wiring 3.7 Initial startup 3.8 Completing the installation checklist Installation checklist 4 Understanding UPS operation 4.1 Looking inside the UPS system 4.2 Modes 4.2.2 Bypass mode The critical load is not protected while the UPS is in Bypass mode Figure 4-3.Path of current through the UPS in bypass mode 4.2.3 Battery mode Figure 4-4.Path of current through the UPS in battery mode 4.3 UPS system one line configurations Page Figure 4-6.Typical maintenance bypass panel 5 UPS operating instructions 5.1 UPS controls and indicators 5.2 Using the control panel 5.2.2 Using the LCD and pushbuttons Figure 5-3.Parts of the LCD 5.2.3 Using the menu Menu option Table 5-2.Display function menu map 5.2.4 Mimic screen Figure 5-4.Main menu and Mimic screen (normal mode) Page Page Page Page Table 5-3.Display menu operation 5.2.6 System controls screen Figure 5-5.System Controls screen 5.3 Operation 5.3.2 Starting the UPS in bypass mode 5.3.3 Starting the power module 5.3.4 Transfer from normal to bypass mode Power is present inside the UPS cabinets 5.3.5 Transfer from bypass to normal mode 5.3.6 Transfer from normal to bypass mode and shut down UPS 5.3.7 UPS and critical load shutdown 5.3.8 Charger control 5.3.9 Using the UPS LOAD OFF pushbutton 5.3.10 Using the Remote Emergency Power-offswitch Turn UPS from normal mode to mechanical bypass Turn UPS from mechanical bypass to normal mode 6 Responding to system events 6.1 General 6.2 System event horns 6.3 System event indicators 6.4 System event messages 7 Communication 7.1 X-Slotcards 7.2 Powerware LanSafe Power Management Software 7.3 Terminal mode MM DD YYYY HH:MM:SS.hh KYWD MESSAGE <CR> <LF Figure 7-3.Sample Event History Log 7.4 Building alarm monitoring 7.5 General purpose relay contact 8 UPS maintenance 8.1 Important safety instructions 8.2 Performing preventive maintenance 8.3 Installing batteries 9 Recycling the used UPS or batteries 10 Product specifications 10.1 Model numbers 10.2 Single module specifications 11 Warranty