Manual Reference number 6390010Q En (06/02)
If you encounter any problems with the procedures contained in this manual you should seek immediate assistance from the Liebert Sales Office from whom the equipment was purchased. Alternatively, contact the Liebert's Customer Service & Support department at the address shown below:...
UPStation GXT 3x1 USER MANUAL Page iv (06/02)
UPS performance alters in use. Refer all faults to your dealer. Only trained engineers authorized by Liebert should perform troubleshooting. To replace batteries, refer all servicing to qualified service personnel. PROPER DISPOSAL OF BATTERIES IS REQUIRED. REFER TO YOUR LOCAL LAWS AND REGULATIONS FOR DISPOSAL REQUIREMENTS.
UPStation GXT 3x1 USER MANUAL GLOSSARY OF SYMBOLS Indicates AC Input Indicates AC Output Indicates Caution: Note the accompanying instruction Indicates the position of a fuse Requests the user to consult the manual for additional information Indicates that the unit contains a valve regulated lead acid battery Page vi (06/02)
USER MANUAL UPStation GXT 3x1 Table of Contents GENERAL DESCRIPTION ............................1 Introduction ................................1 Major components..............................1 1.2.1 EMI/RFI filters ..............................1 1.2.2 Rectifier/Power Factor Correction (PFC) circuit....................2 1.2.3 Inverter.................................2 1.2.4 Battery Charger ..............................2 1.2.5 Battery .................................2 1.2.6 Static Bypass ...............................2 1.2.7 Auto re-start.................................2 INSTALLATION................................3 Installation considerations............................3 Unpacking and inspection ............................3...
UPStation GXT 3x1 USER MANUAL SPECIFICATIONS ..............................23 Limited Warranty..............................24 Page viii (06/02)
UPStation GXT 3x1 Chapter 1 – General Description Design Concept 1 GENERAL DESCRIPTION Introduction Congratulations on your choice of the UPStation GXT™ Uninterruptible Power System (UPS). It provides conditioned power to microcomputers and other sensitive electronic equipment. Upon generation, AC power is clean and stable. However, during transmission and distribution it may be subject to voltage sags, spikes, or complete power failure, which may interrupt computer operations, cause data loss, or even damage equipment.
Chapter 1 – General Description UPStation GXT 3x1 Design Concept 1.2.2 Rectifier/Power Factor Correction (PFC) circuit In normal operation, the rectifier/power factor correction (PFC) circuit converts mains AC power to regulated DC power for use by the inverter, while ensuring that the wave shape of the input current used by the UPS is near ideal. Extracting this sinewave input current achieves two objectives: the mains power is used as efficiently as possible by the UPS, and the amount of distortion reflected on the mains is reduced.
UPStation GXT 3x1 Chapter 2 - Installation 2 INSTALLATION These instructions are for use by competent personnel only. Installation considerations Detailed instructions to help you install the UPS are provided in the following pages; however, you should give some consideration to the proposed environment in which the UPS is to be installed, and carry out some preparatory work. Unpacking and inspection Before you install the UPS, give it a thorough visual examination to ensure it has not been subjected to shipping damage.
The terminals will accept wire sizes up to the values below: Model Cables sizes INPUT CURRENT Amps max Including mains variation/battery charge normal mode: 8A GXT3x1-6000 10 mm bypass mode: 26A normal mode: 11A GXT3x1-8000 16 mm bypass mode: 35A...
Size ground (protective earth) conductors equal to circuit conductors. 2.4.3 Connection of optional remote battery cabinets Full installation instructions are provided with these cabinets. Safety/EMC certification limits the use of these terminals to Liebert supplied options. Page 5 (06/02)
NUT ABOVE, AS THIS FIXES THE LEVELLING FEET TO THE CHASSIS. Attach the stabilising brackets as follows. GXT3x1-6000, GXT3x1-8000, GXT3x1-10000 models: 1 Using a Phillips-head screwdriver, remove the three inner-most screws at the base of both side panels. 2 Attach the stabilisers fixing with the screws just removed.
UPStation GXT 3x1 Chapter 2 - Installation 2.4.5 Ferrite bead installation When using either of the options below, to reduce the risk of radio interference, fit the ferrite assemblies supplied with the UPS as follows: 2.4.6 Serial Communications Attach the smaller enclosed ferrite bead clamp to the communication cable as shown in the drawing using the following directions: Open the ferrite bead.
Chapter 2 - Installation UPStation GXT 3x1 Commissioning the UPS 2.5.1 Output Voltage Selector Switches The Output Voltage Selector Switches, located on the rear of the UPS, are designed to allow selecting or changing the desired output voltage to match the mains. The settings to choose from are 208, 220, 230, and 240 VAC output. 230V Units áá...
UPStation GXT 3x1 Chapter 2 - Installation DB-9 Intellislot Communications Communications Port Port Output Voltage Selector Switches Input Breakers Output Breaker Input Fuse Battery Breaker Terminal Blocks Adjustable levels Figure 2-3 - GXT 3x1 6-8-10 kVA - Rear panel controls Page 9 (06/02)
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UPStation GXT 3x1 Chapter 3 - Controls and indicators 3 CONTROLS AND INDICATORS Fault Indicator UPS ON / BYPASS Alarm Silence / Manual Battery Test UPS ON BATTERY Output OFF / Bypass AC INPUT Load / Battery Level Indicators Figure 3-1 - Front panel controls Fault Indicator (Red) The Fault indicator is illuminated if the UPS has detected a problem.
Chapter 3 - Controls and indicators UPStation GXT 3x1 BATTERY TESTING- To initiate a manual battery test, press this button for at least one half second while operating in normal UPS mode power and no alarm conditions are present. If the bottom two LED's do not illuminate during a Battery Test, allow the UPS to recharge the batteries for 24 hours.
UPStation GXT 3x1 Chapter 4 - Operating modes 4 OPERATING MODES Introduction 4.1.1 Normal mode operation- UPS mode During normal operation, mains power provides energy to the UPS. The filters, the power factor correction circuit and the inverter process this power to provide computer grade power to connected loads.
Chapter 4 - Operating modes UPStation GXT 3x1 4.1.3 Bypass mode operation During BYPASS operation, mains power provides energy to your load and maintains the batteries in a fully charged state. The BYPASS will automatically power the load temporarily during overloads of the inverter, when diagnostics detect equipment problems, or when the operator selects BYPASS operation.
UPStation GXT 3x1 Chapter 4 - Operating modes 4.1.7 Powering down the UPS with mains available Shutdown all connected load equipment. Press the OUTPUT OFF/BYPASS button once until a "beep" is heard. The UPS ON LED will extinguish and the BYPASS LED will light if the BYPASS voltage is within an acceptable range. The load is now powered through the BYPASS and there is no UPS protection.
Chapter 4 - Operating modes UPStation GXT 3x1 4.1.12 UPS Remote shutdown option. Shorting pins 5 and 6 on the DB9 connector will shutdown the UPS output in any mode of operation. Removing the short circuit, the UPS will automatically auto-restart. Where there is a requirement for a remote shutdown of the UPS to meet fire or other local safety codes, it is necessary to interrupt, at the same time with the same pushbutton, all mains input supplies to the UPS.
The Intellislot SNMP/Web Card provides SNMP and web-based management to your UPS. The card gives you the power to monitor and control your Liebert UPS from not only your Network Management Station, but from any PC running Microsoft® Internet Explorer™. Connecting to your UPS is a simple as launching a web browser.
Chapter 5 - Communications UPStation GXT 3x1 Communications Interface Port The UPStation GXT 3x1 UPS contains a standard DB-9 socket located on the rear of the UPS unit. Several signals are provided on this port and are assigned as follows: ASSIGNMENT DESCRIPTION Low Battery (open collector) UPS TxD (typical RS-232 levels)
UPStation GXT 3x1 Chapter 6 – Troubleshooting TROUBLESHOOTING The information below indicates various symptoms a user may encounter in the event the UPStation GXT develops a problem. Use this information to determine whether external factors cause the problem and how to remedy the situation. The fault indicator will illuminate indicating the UPS detected a problem.
Chapter 6 – Troubleshooting UPStation GXT 3x1 Audible Alarm Conditions CONDITION ALARM Battery mode (utility failure) One short beep every ten seconds Low battery Two short beeps every five seconds Output overload (bypass) One short beep every half second Over temperature (bypass) One second beep every four seconds DC Bus over voltage (bypass) One second beep every four seconds...
UPStation GXT 3x1 Chapter 6 – Troubleshooting TROUBLESHOOTING GUIDE PROBLEM CAUSE SOLUTION Fault and Bypass UPS overloaded or load Check load level display and indicators and all load equipment is faulty remove non-essential loads. level LED's are Recalculate load VA and illuminated reduce number of loads connected to UPS.
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UPStation GXT 3x1 Chapter 7 – Specification 7 SPECIFICATIONS SPECIFICATIONS GXT3X1 - 6000 GXT3X1 - 8000 GXT3X1 - 10000 MODEL NUMBER MODEL RATING VA/W (max) 6000 / 4200 8000 / 5600 10000 / 7000 DIMENSIONS: mm (in) 340 x 650 x 960 Unit W x D x H (13.4 x 25.6 x 37.8)
If the UPS fails to conform with the above warranty within the two year warranty period, Liebert will repair or replace the UPS, at Liebert's option. Repairs or replacements are warranted for the remainder of the original warranty period. Purchaser, to make a warranty claim, should call to obtain a Returned Goods Authorisation number and shipping instructions.