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PowerSure PSA Guide Specification

350 – 1000VA SL-23271 8/03

Liebert PowerSure PSA UPS

GUIDE SPECIFICATIONS

350VA to 1000VA

Single - Phase Uninterruptible Power Supply Systems

1.0 GENERAL

1.1 SUMMARY

This specification defines the electrical and mechanical characteristics and requirements for a continuous-

duty single-phase, solid-state, uninterruptible power system. The uninterruptible power system, hereafter

referred to as the UPS, will provide high-quality AC power for sensitive electronic equipment loads.

1.2 STANDARDS

The UPS is designed in accordance with the applicable sections of the current revision of the following

documents. Where a conflict arises between these documents and statements made herein, the statements

in this specification will govern.

120V Units

UL 1778, c-UL listed (to CSA 22.2 No. 107.1)

FCC Part 15, Subpart B, Class B

ANSI C62.41, Category A, Level 3 (IEEE 587, Category A);

EN61000-4-5, Level 3, Criteria A

EN61000-4-2, Level 3, Criteria A

EN61000-4-3, Level 3, Criteria A

EN61000-4-4, Level 4, Criteria A

EN61000-4-6, Level 3, Criteria A

EN61000-3-2

EN61000-3-3

ISTA Procedure 1A

230V Units

EN50091-1-1, TUV/GS listed, CE compliance mark

EN50091-2, Class B

EN61000-4-2, Level 3, Criteria A

EN61000-4-3, Level 3, Criteria A

EN61000-4-6

EN61000-4-4, Level 4, Criteria A

EN61000-4-5, Level 3, Criteria A

EN61000-3-2

EN61000-3-3

ISTA Procedure 1 A

1.3. SYSTEM DESCRIPTION

1.3.1 Modes of Operation

The UPS is designed to operate as a line-interactive system in the following modes:

A. Normal - The critical AC load is continuously supplied with filtered power. The battery

charger maintains a float-charge on the battery.

Summary of content (8 pages)

PAGE 1
Liebert PowerSure PSA UPS GUIDE SPECIFICATIONS 350VA to 1000VA Single - Phase Uninterruptible Power Supply Systems 1.0 1.1 GENERAL SUMMARY This specification defines the electrical and mechanical characteristics and requirements for a continuousduty single-phase, solid-state, uninterruptible power system. The uninterruptible power system, hereafter referred to as the UPS, will provide high-quality AC power for sensitive electronic equipment loads. 1.
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B. Voltage Boost/Buck - During input power source abnormalities (sags and swells), the AC output power is corrected by means of boost (sag correction) or buck (swell correction) compensation taps. Operation of the compensation taps automatically maintains the proper output voltage for the connected critical equipment. The compensation taps is designed for indefinite operation to their limits. Operation of the compensation taps will not discharge the battery. C.
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127 VAC nominal: single phase, 2-wire-plus-ground: 90 ─ 150 VAC (±3VAC), Buck compensation: 141VAC (±3VAC) Boost1 compensation: 113VAC (±3VAC) Boost2 compensation: 100VAC (±3VAC) 220 VAC nominal: single phase, 2-wire-plus-earth: 155 ─ 270 VAC (±6VAC) Buck compensation: 243 VAC (±6VAC) Boost1 compensation: 197 VAC (±6VAC) Boost2 compensation: 174 VAC (±6VAC) 230 VAC nominal: single phase, 2-wire-plus-earth: 163 ─ 282 VAC (±6VAC) Buck compensation: 254 VAC (±6VAC) Boost1 compensation: 207 VAC (±6VAC) Boost2 c
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F. Voltage Transient Response: ±15% in Normal mode for 0-100-0% loading of the UPS rating, ±5% in Battery mode for 20-100-20% loading of the UPS rating. G. Transient Recovery Time: To within ±8% of nominal voltage in < 2 cycles. H. Efficiency: >95% (Normal mode) >90% (Buck/Boost mode) I. Output Power Cords: The 230 VAC units have two (2) detachable IEC-320-C14 output power cords measuring 2m (6.6 ft) in length. 1.4 ENVIRONMENTAL CONDITIONS A.
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1.7 QUALITY ASSURANCE 1.7.1 Manufacturer Qualifications Liebert Corporation provides more than twenty years experience in the design, manufacture, and testing of solid-state UPS systems and the company is certified to ISO 9001. 1.7.2 Factory Testing Before shipment, the product is tested to assure compliance with the specification. 2.0 2.
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2.2.2 Bi-Directional Converter 2.2.2.1 General The Bi-Directional Converter incorporates solid-state devices and control circuitry to convert AC power to regulated DC power for battery charging; and convert DC power from the battery to regulated and conditioned stepped-sinewave AC power for supporting the critical load. The Bi-Directional Converter is a pulse width modulated (PWM) design. The Bi-Directional Converter operates in the following modes: 1.
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2.2.3 Display and Controls 2.2.3.1 General The UPS is provided with a microprocessor-based unit status and control display designed for convenient and reliable user operation. The status and alarm indicators are displayed on a status indicator display. 2.2.3.
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2.2.6 Communications The UPS has a DB-9 (9 pin female) connector on the rear to allow UPS status communications with a computer system running MultiLink™ software. The DB-9 is capable of supplying serial communication, on battery and low battery signals. MultiLink, Liebert’s UPS monitoring and shutdown software, is shipped with the UPS, along with a 10-ft. (3m) DB-9 cable required for running MultiLink. The UPS can signal “on battery” and “low battery” using opto-couplers.