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Alpha Technologies NEXSYS 600 Operator's Manual

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Nexsys System
600, 900, 1250
U N I N T E R R U P T I B L E P O W E R
F R O M
A L P H A
Operator's Manual
T E C H N O L O G I E S
S U P P L I E S

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Summary of Contents for Alpha Technologies NEXSYS 600

  • Page 1 Nexsys System 600, 900, 1250 U N I N T E R R U P T I B L E P O W E R S U P P L I E S F R O M A L P H A T E C H N O L O G I E S Operator’s Manual...

  • Page 2: Important Safety Instructions

    THE NEXSYS UPS IMPORTANT SAFETY INSTRUCTIONS CONTAINED IN THIS MANUAL CAUTION RISK OF ELECTRICAL SHOCK CAUTION: To reduce the risk of electrical shock and to ensure the safe operation of this unit, the following symbols have been placed throughout the manual. Where these symbols appear, servicing should be performed by qualified personnel only.

  • Page 3: Important Safety Precautions

    THE NEXSYS UPS IMPORTANT SAFETY PRECAUTIONS THE UPS SHOULD BE SERVICED BY QUALIFIED PERSONNEL ONLY. WARNING: This unit contains sealed lead-acid batteries with high energy and chemical hazards. Carefully read this manual regarding safe battery handling, maintenance, and dis- posal. Inspection and replacement should be performed by qualified personnel only.
  • Page 4 THE NEXSYS UPS IMPORTANT SAFETY PRECAUTIONS (Continued) The UPS contains more than one live circuit. AC power may be present at the UPS output, even if AC power is not present at its input. Do not allow live battery wires to touch the UPS chassis. Shorted battery wires could cause a fire or explosion.

  • Page 5: Table Of Contents

    1 INTRODUCTION ................8 1.1 The Alpha Advantage .............. 8 1.2 Unpacking and Inspection ............9 1.3 A Tour of the Nexsys UPS ............. 10 1.4 Nexsys UPS Front Panel ............10 1.5 Nexsys UPS Rear Panel ............11 2 INSTALLATION ................13 2.1 Pre–installation ..............

  • Page 6: Introduction

    Tower Installation The Nexsys UPS can be configured to stand on the floor next to the loads. The external battery pack can be joined to the UPS. Wall Mount Installation The Nexsys UPS mounts easily on a wall adjacent to key systems.

  • Page 7: Unpacking And Inspection

    Technologies and the shipping company at once. Most shipping companies have a short claim period. Make sure that the following items are included: One Nexsys UPS with an AC line cord (only included with North American units with an IEC inlet).

  • Page 8: A Tour Of The Nexsys Ups

    1. INTRODUCTION A Tour of the Nexsys UPS The Nexsys UPS is easy to use and extremely adaptable. Each Nexsys model is available in two versions; one for 120 V, 60 Hz applications and the other for 230 V, 50 Hz. The integrated front control and display panel provides many information management options.

  • Page 9: Nexsys Ups Rear Panel

    • 870-540-22 Cable Assembly, Nexsys–PC, RS–232, DE–9M to DE–9F Input/Output Receptacle Plate The standard Nexsys UPS comes with an input/output receptacle plate with the following: AC Input Circuit Breaker The AC input circuit breaker automatically disconnects the UPS from the utility line AC power if an overcurrent is applied to the UPS input.
  • Page 10 1. INTRODUCTION Nexsys UPS Rear Panel (Continued) Communication/Alarm External Battery Cooling fans Interface Connector Pack (EBP) Connector External Battery Connector (UPS) AC Line Cord Connector External Battery Pack Cord Nameplate AC Input AC Output Label Circuit Breaker Receptacles Figure 1.2...

  • Page 11: Installation

    2. INSTALLATION Pre-installation Site Preparation Install the UPS in a well-ventilated, dust-free environment. Do not mount it on any surface unable to fully support its weight. Install the UPS near the equipment to be protected. The AC line socket and the output receptacles must be easily accessible in case of an emergency.

  • Page 12: Tower Configuration Installation

    2. INSTALLATION Tower Configuration Installation 2.2.1 UPS Installation Requires 1. Install the four rubber feet on the correct side of the cabinet. For proper ventilation, the front Phillips Screwdriver panel vent hole must be on the bottom when the UPS is standing on its rubber feet. Rubber Feet Figure 2.1...
  • Page 13 2. INSTALLATION Tower Configuration Installation (Continued) 2.2.2 External Battery Pack Installation 1. To join an external battery pack (EBP) to the UPS, first install the four rubber feet to the bottom of the EBP. 2. On the sides where the UPS will join the EBP, remove the two upper and lower screws on both the UPS and the EBP.
  • Page 14 2. INSTALLATION Tower Configuration Installation (Continued) 5. Join the EBP with the UPS so that the EBP braces slide between the UPS front panel and chassis. Align the braces with the UPS upper and lower screw holes. Insert and tighten the screws. Brace Figure 2.4 Front Installation...
  • Page 15 2. INSTALLATION Tower Configuration Installation (Continued) 7. Install two other braces to the outside of the UPS and EBP rear panels using the screws shipped with the EBP. Braces Connector Cable Figure 2.5 Rear Installation...
  • Page 16 2. INSTALLATION Tower Configuration Installation (Continued) Install two multipurpose brackets to the outside bottom edges of the UPS/ EBP combination to act as seismic brackets. Multipurpose Bracket as a Figure 2.6 Seismic Bracket Seismic Bracket Connect the UPS to the EBP using the EBP connector cable. 10.
  • Page 17 Tower Configuration Installation (Continued) 2.2.3 Bench Top Laying The Nexsys UPS and EBP can be laid on their sides and stacked on top of each other. Attach four adhesive backed rubber pads to the bottom of the UPS and EBP chassis, about 1 inch (25 mm) from the corners.

  • Page 18: Wall Mounting

    2. INSTALLATION Wall Mounting Tools Required: Requires • Masking tape • Drill and drill bits for pilot holes • Mounting hardware kit (included with unit) Phillips Screwdriver Install the UPS on a 1.25 inch (3 cm) thick wood mounting board. Attach the wood mounting board securely to the wall so that it can safely support the UPSs weight.
  • Page 19 2. INSTALLATION Wall Mounting (Continued) Install the upper bracket on to the UPS. Multipurpose Bracket Positioned for Wall Mounting Figure 2.9 Wall Mount Bracket Lift the UPS and rest it on top of the lower bracket installed in Step 5. WARNING: The UPS is heavy.

  • Page 20: Rack Mounting

    2. INSTALLATION Rack Mounting 1. Mount the multipurpose brackets on the sides of the UPS cabinet. The brackets can be mounted in the centre of the chassis or flush with the front panel. NOTE: By changing the orientation of the multipurpose bracket, the UPS can be mounted in a 19 or 23 inch rack.

  • Page 21: Connecting The Ups

    2. INSTALLATION Connecting the UPS 2.5.1 Connecting a UPS Equipped with Plugs and Receptacles WARNING: Total Earth ground leakage currents of loads connected to the UPS are not to exceed 3.1 mA. Connect the UPS to utility line AC power. If required, connect the external battery (EBP) to the UPS using the connector cable.
  • Page 22 2. INSTALLATION Connecting the UPS (Continued) 2.5.2 Connecting a UPS Equipped with Terminal Blocks NOTE: An easily accessible and appropriate disconnect device must be provided as part of the installation. Mark all circuit breakers supplying power to the UPS in case it must be shut down in an emergency. WARNING: Installation and wiring of a UPS equipped with terminal blocks must be done by qualified technicians only.

  • Page 23: External Battery Pack

    2. INSTALLATION External Battery Pack The backup time of the Nexsys UPS can be extended by attaching an external battery pack (EBP) to the UPS. The EBPs can be daisy chained together to further extend the backup time. a t l The Nexys UPS is equipped with a smart charging system.

  • Page 24: Operation

    3. OPERATION Operating Modes On Line Mode This is the normal mode of the UPS with the On Line LED ON, the On Battery LED OFF, and the batteries being charged. Boost Mode In this mode, the UPS automatically uses a step-up transformer to increase the output voltage by up to 12% without using the batteries or inverter when the input voltage falls below a preset limit.
  • Page 25 3. OPERATION Operating Modes (Continued) 3) Low Battery Disconnect State The UPS automatically switches into this state when it is in On Battery mode, and the battery is discharged to a level where it cannot provide power to the UPS’s internal electronics. In this state, all the Display and Control panel’s LED’s are off, indicating the UPS is shut down and providing no power to the loads.

  • Page 26: Starting And Testing The Ups

    3. OPERATION Operating Modes (Continued) Standby Mode In this mode, the UPS output power is shut off but its control system is still on and the LEDs are sequentially flashing. The UPS switches into Standby mode because: 1 The battery charge drops below a preset level while the UPS is in On Battery mode.

  • Page 27: Shutting Down The Ups

    3. OPERATION Shutting Down the UPS Turn off all loads connected to the UPS. Turn off the UPS On/Off switch. Unplug the UPS’s AC line cord from the wall receptacle. Figure 3.2 UPS Shutdown Procedures...

  • Page 28: Self Test

    3. OPERATION Self Test The UPS can perform a self test of its internal components, confirming its ability to transfer between On Line and On Battery modes and its ability to support the loads. NOTE: The self-test should not be done while critical loads are running, depending on the UPS's output.

  • Page 29: Front Panel Indicators And Controls

    3. OPERATION Front Panel Indicators and Controls The UPS is equipped with a compact display and control panel. The LEDs show the UPS's state. On Line and On Battery LEDs This pair of LEDs work together to show the UPS's operating mode. In normal operation, the On Line LED is ON and On Battery LED is OFF.
  • Page 30 3. OPERATION Front Panel Indicators and Controls (Continued) Fault LED When the Fault LED is ON, the UPS has a major problem serious enough to cause an immediate shut down. A flashing Fault LED warns the user about a problem, but it is not serious enough to shut down the UPS.
  • Page 31 3. OPERATION Front Panel Indicators and Controls (Continued) When the fault or warning LED is on, specific information about the cause of the fault can be viewed by simultaneously pressing the % Load and % Batt buttons. The LEDs will show a fault code which is read on the following table: t l u o i t * * * * *...
  • Page 32 3. OPERATION Front Panel Indicators and Controls (Continued) Test LED The Test LED comes ON when the UPS is in the Test mode. The Test LED flashes when an Output Shutdown or Inverter Shutdown command is pending. Percentage Load Indicator When the % Load button is pressed, the LEDs show the output power as a percentage of the UPS's maximum output power.
  • Page 33 3. OPERATION Front Panel Indicators and Controls (Continued) Battery Charge Indicator Pressing the % Batt button shows the approximate charge of the battery. The LEDs show the percent battery voltage between fully charged and discharged levels. NOTE: Batteries that cannot be fully charged should be serviced or replaced.
  • Page 34 3. OPERATION Front Panel Indicators and Controls (Continued) Mute/Test/Manual Start Button Mute When the UPS switches to On Battery mode, a warning beep sounds every 10 seconds. When an alarm is detected, two beeps sound every 5 seconds. For both, press the Mute button to turn off the beeper. If a fault is detected, the beeper will emit a continuous sound.
  • Page 35 3. OPERATION Front Panel Indicators and Controls (Continued) Standby Mode Sequentially flashing LEDs indicate the UPS is in Standby mode. The UPS is ready to switch to On Line or On Battery mode, but there is no output. Listed below are conditions that will make the UPS go into the Standby mode and how the UPS responds to line conditions.
  • Page 36 3. OPERATION Front Panel Indicators and Controls (Continued) Hot Swap Mode In Hot Swap mode, the internal batteries can be replaced without switching off the UPS. Conditions to switch the UPS into Hot Swap mode are: • The UPS must be in On Line or Boost mode. •...

  • Page 37: Communication

    4. COMMUNICATION Interface Port The UPS is equipped with a DE–9 female connector for remote communica- tion. When linked to a PC with a terminal emulation package, the PC can monitor, control, and calibrate the UPS using RS–232 ASCII commands. 4.1.1 Pin Assignments •...
  • Page 38 4. COMMUNICATION Interface Port (Continued) 4.1.2 RS-232 Connection A male DE–9 connector is required when connecting the UPS's RS–232 port to a PC to run ASCII commands. Figure 4.1, “Pin Assignment DE–9 Female Connector” shows the wiring configuration. NOTE: Use only fully shielded cables to make connections to any of the DE–9 connectors.
  • Page 39 4. COMMUNICATION Interface Port (Continued) To AWM 600 RS–232 25–Pin IBM PC Serial Port 25–Pin Connector To AWM 600 9–Pin IBM PC RS–232 Serial Port To 9-Pin Connector Figure 4.2 RS-232 Serial Cable Connections...

  • Page 40: Rs-232 Communication

    4. COMMUNICATION RS-232 Communication 4.2.1 Introduction This section describes how to monitor, control, and calibrate the UPS using RS–232 ASCII commands and how to navigate through the program using the menus. Terminal emulation software is used to program the RS–232 serial interface. Parameters and commands can be accessed through the menus or by typing a number associated with the desired functions.
  • Page 41 Figure 4.3 shows the opening menu screen which displays menu Option 1 through 4. Current line status, output status, faults, and alarms (if any exist) are also displayed. Alpha Technologies - NEXSYS [0-Main Menu] 1 Unit Specification 2 Input/Output Values...
  • Page 42 4. COMMUNICATION RS-232 Communication (Continued) The following are messages and descriptions for each group. Line Status: Normal: AC line is normal Boost: AC line is out of tolerance, Boost mode in operation Blackout: AC line non-exist Low : AC voltage low High: AC voltage high Freq low: Line frequency too low Freq high: Line frequency too high...
  • Page 43 4. COMMUNICATION RS-232 Communication (Continued) 4.2.5 Quick Reference Currently available menus and commands: Main Menu: 1 Unit Specifications Unit Model Unit Freq hertz Input Voltage volts Output Voltage volts Output VA xxxx Battery Voltage volts Max Chgr Current x.xx amps EEPROM Version: xx.xx...
  • Page 44 4. COMMUNICATION RS-232 Communication (Continued) 3 Maintenance 30 Battery Test options [Default Value] 300 Set battery test period [120] 301 Battery test On/Off [Off] 31 Output Shutdown Options 310 Set Shutdown delay [000] 311 Shutdown On/Off [Off] 32 Inverter Control Options 320 Set inverter-off delay [000] 321 Inverter On/Off...
  • Page 45 4. COMMUNICATION RS-232 Communication (Continued) Volt Amps The apparent output power of the UPS is calculated by multiplying the output voltage by the output current. The total UPS output VA may not equal the sum VA drawn from the connected equipment. This is due to different power factor rating for each piece of equipment.
  • Page 46 4. COMMUNICATION RS-232 Communication (Continued) 4.2.9 Calibration Calibration allows you to customise the UPS detection and warning characteristics. Normally, these factory settings do not have to be changed. CAUTION: Improper calibration parameter values may cause permanent damage to the UPS. The calibration must be done by well trained personnel only.

  • Page 47: Maintenance

    The maintenance–free batteries used in the UPS will be affected by many variables including operating temperature, number of discharges over the life of the battery, charging characteristics, and low voltage cell cutoff. The Nexsys UPS complies with all factory recommendations for charging and discharging batteries to ensure optimum performance and the longest possible battery life.

  • Page 48: Internal Battery Replacement

    Section 3.6.9, “Hot Swap Mode.” Undo the five screws that secure the front panel and swing the front panel open. For the Nexsys 600: Undo the two screws on the battery holding bracket. Remove the battery holding bracket and the battery holding foam block.
  • Page 49 Internal Battery Replacement (Continued) Battery Holding Battery Holding Battery Cables Battery Leads Bracket Foam Block Figure 5.1 Nexsys 600 Internal Battery Compartment Battery Holding Battery Holding Battery Connectors Bracket Foam Block Figure 5.2 Nexsys 900 and 1250 Internal Battery Compartment...
  • Page 50 10. Plug in the red/blue battery connector and slide the batteries all the way in. Reinstall the battery holding bracket and its foam block. For the Nexsys 900 and 1250: Undo the two screws on the battery holding bracket and remove the battery holding bracket and the battery holding foam block.

  • Page 51: Troubleshooting

    5. MAINTENANCE Troubleshooting SYMPTOM CAUSE REMEDY UPS does not turn on Discharged batteries. Charge batteries. when On/Off switch turned on. Faulty circuit. Contact vendor. On Line mode does not No AC line power. Wait for AC line power. come on. Check input circuit breaker.

  • Page 52: Repair Instructions

    5. MAINTENANCE Repair Instructions Before returning a unit to Alpha Technologies for repair, obtain a Return Material Authorization (RMA) number from Alpha's customer service depart- ment. Clearly mark the RMA number on the unit’s original shipping container. For other shipping instructions, see Section 1.2, “Unpacking and Inspection.” Alpha Technologies does not assume responsibility for damage caused by improper packaging of returned units.

  • Page 53: Specifications

    5. MAINTENANCE Specifications – – a t l a t l a t l i t c o i t – – a t l l a t < t s i o i t h t i a t l h t i h t i n i t...
  • Page 54 5. MAINTENANCE Specifications (Continued) y t i l a t l a t l a t a t l Specifications subject to change without notice External Battery Packs (EBPs) Batteries Maintenance free, sealed, valve regulated EBP217-24N 2 x 17 Ah batteries, 24 VDC total EBP417-24N 4 x 17 Ah batteries, 24 VDC total EBP417-48N...

  • Page 55: Warranty

    6. WARRANTY LIMITED 24-MONTH WARRANTY AC PRODUCTS Alpha Technologies warrants its equipment to be free of manufacturing defects in material and workmanship for a period of 24 months from the date of manufacture. The liability of Alpha Technologies under this warranty is solely limited to repairing, replacing, or issuing credit for such equipment (at the discretion of Alpha Technologies), provided that: 1.

  • Page 56: Emergency Shutdown

    EMERGENCY SHUTDOWN EMERGENCY SHUTDOWN IMPORTANT The UPS contains more than one live circuit. During an emergency, utility power may be disconnected at the service entrance or main electrical panel to protect emergency personnel, but power may still be present at the UPS output.
  • Page 57 USA, LATIN AMERICA & ASIA PACIFIC Alpha Technologies 3767 Alpha Way Bellingham, WA 98226 Tel: (360) 647-2360 Fax: (360) 671-4936 CANADA Alpha Technologies 7033 Antrim Ave., Burnaby BC V5J 4M5 Tel: (604) 430-1476 Fax: (604) 430-8908 UNITED KINGDOM Alpha Technologies Cartel Business Estate Edinburgh Way Harlow, Essex CM20 2DU...

This manual is also suitable for:

Nexsys 900Nexsys 1250

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