ZTT/Plus CATV UPS Users Guide 120V Input Model Effective: June, 2003
Power Alpha Technologies ®
ZTT/Plus CATV UPS — 120VAC User’s Guide Effective: June, 2003 164201085 Rev. F0 — © 2003 Alpha Technologies NOTE: Photographs contained in this manual are for illustrative purposes only. These photographs may not exactly match your installation. NOTE: Review the drawings and illustrations contained in this manual before proceeding. If there are questions regarding the safe operation of this powering system, please contact Alpha Technologies or your nearest Alpha representative.
Table of Contents PREFACE Important Safety Instructions ............................................................................................ 6 General Safety Precautions .............................................................................................. 7 Battery Safety Notes ......................................................................................................... 9 Battery Maintenance Guidelines .............................................................................
List of Figures 1. OVERVIEW Fig. 1-1 Lectro ZTT/Plus CATV UPS ............................................................................ 12 2. CABINET INSTALLATION Fig. 2-1 Fig. 2-2 Fig. 2-3 Fig. 2-4 Fig. 2-5 Fig. 2-6 Fig. 2-7 Utility Disconnect ............................................................................................ 14 Exploded view, Pole Mount Arrangement ....................................................... 15 Utility Disconnect, Grounding ......................................
Preface Impor tant Safety Instructions Contained In This Manual. Read This Manual Before Proceeding! Review the drawings and illustrations contained in this manual before proceeding. If there are any questions regarding the safe installation or operation of the system, contact Alpha Technologies or the nearest Alpha representative. Save this document for future reference.
Preface General Safety Precautions A “Warning” identifies conditions and actions that pose a hazard to the user. A “Caution” identifies conditions and actions that may damage the power supply or associated equipment. Warnings NOTE: This enclosure and its associated hardware (power supply, batteries, cabling) may contain equipment, batteries or parts which have accessible hazardous voltage or currents.
Preface General Safety Precautions Cautions NOTE: Enclosure, equipment or parts may be damaged or cause damage if used or installed improperly. To avoid damage: 8 • Prior to installation, verify that the AC input voltage to the enclosure and its equipment match with respect to voltage and frequency. • Prior to installation, verify that the output voltage from the enclosure or its equipment match the voltage requirements of the connected equipment (load).
Preface Battery Safety Notes Lead-acid batteries contain dangerous voltages, currents and corrosive material. Battery installation, maintenance, service and replacement must be performed by authorized personnel only. Chemical Hazards NOTE: Any gelled or liquid emissions from a valve-regulated lead-acid (VRLA) battery contain dilute sulfuric acid, which is harmful to the skin and eyes. Emissions are electrolytic, which are electrically conductive and corrosive. To avoid injury: 164201085 Rev.
Preface Battery Safety Notes, continued • Prior to handling the batteries, touch a grounded metal object to dissipate any static charge that may have developed on your body. • Never use uninsulated tools or other conductive materials when installing, maintaining, servicing or replacing batteries. • Use special caution when connecting or adjusting battery cabling.
Preface Recycling and Disposal Instructions • Spent or damaged batteries are considered environmentally unsafe. Always recycle used batteries or dispose of the batteries in accordance with all federal, state and local regulations. Electrical Safety • Lethal voltages are present within the power supply and electrical boxes. Never assume that an electrical connection or conductor is not energized.
1.Overview 1.1 The ZTT/Plus Uninterruptible Power Supply This manual provides information related to the installation, operation, and service of specific Lectro equipment. For assistance in personnel training applications, please contact Alpha Technologies at: 1-800-863-3930. For Technical Support, or for specific problems, call 1-800863-3364 (7AM-5PM Pacific Time, or 24/7 emergency) and ask for Technical Support.
2. Cabinet Installation 2.1 Pole-Mount Cabinet The standard cabinet is designed to be pole-mounted. Wooden pole mount applications utilize machine bolts to attach the enclosure mounting brackets to the pole, while installations done on concrete or steel poles utilize straps to attach the mounting bracket(s) to the pole. NOTE: Mounting bolts must go completely through the wooden pole and be secured from the back with a large washer and nut.
2. Cabinet Installation 2.1 Pole-Mount Cabinet, continued INSTALLATION PROCEDURE 1. Install an appropriate disconnect box between the AC power source and the cabinet mounting point. Wire to the power line in accordance with local codes. 2. Remove all equipment, hardware, and options from the outdoor cabinet and store in a secure location for future use. 3. Remove the U-shaped mounting bracket from the cabinet rear panel (see Figure 2-2). 4.
2. Cabinet Installation 2.1 Pole-Mount Cabinet, continued 6 4 5 2, 8 4 7 3 Fig. 2-2 Exploded View, Pole Mounting Arrangement 164201085 Rev.
2. Cabinet Installation 2.1 Pole-Mount Cabinet, continued 9 Power Meter 9 Fig. 2-3 Utility Disconnect, Grounding for Pole Mounting Arrangement 16 164201085 Rev.
2. Cabinet Installation 2.2 Ground-Mount Cabinet INSTALLATION PROCEDURE Although ground mounting the power supply can be accomplished by several methods, the following procedure is recommended. Figure 2-5, Figure 2-6, and Figure 2-7 illustrate the ground mount installation. 1. Select an appropriate site. Clear and level an area of approximately 36" X 36". 2. In accordance with local codes, install the disconnect box near the AC power source.
2. Cabinet Installation 2.2 Ground-Mount Cabinet, continued 2.2.1 Enclosure Grounding NOTE: Alpha Technologies recommends using the grounding method illustrated on the following page. The grounding method for a particular site will be dependant upon soil type, available space, local codes, NEC (National Electric Code), and other site-specific characteristics.
2. Cabinet Installation Ground-Mount Cabinet, continued 2.2 2.2.1 Enclosure Grounding, continued Burndy YGHP58C2W-3 or Equivalent Burndy YGHP58C2W-2TN or Equivalent Terminate at Enclosure Ground Bar 2 Terminate at Service Entrance Ground 3 4 2' min. 2 2 #2 AWG 1 2 Two 8' Ground Rods 6' Apart (min) Fig. 2-4 Enclosure Grounding SERVICE GROUNDING (REQUIRED) 1 #6 bare copper wire from Service Neutral / Ground Bar with 2 ground rods located 6' apart.
2. Cabinet Installation 2.2 Ground-Mount Cabinet, continued Fig. 2-5 Ground Mount (Cement Pad) NOTE: It is recommended the cement pad dimensions extend beyond the ground skirt on the front and sides and 3-5" in the back. 20 164201085 Rev.
2. Cabinet Installation 2.2 Ground-Mount Cabinet, continued Fig. 2-6 Ground Mount (Front View) 164201085 Rev.
2. Cabinet Installation 2.2 Ground-Mount Cabinet, continued Fig. 2-7 Ground Mount (Rear View) 22 164201085 Rev.
2. Cabinet Installation 2.3 Electrical Connection WARNING: Adhere to all appropriate electrical precautions CONNECTION PROCEDURE 1. Open the cabinet doors. 2. Install liquid tight conduit to the fitting on the cabinet rear panel and pull the AC primary wiring into the cabinet housing. 3.
3. Power Supply Installation 3.1 Installing the ZTT/Plus 3.1.1 ZTT/Plus Chassis Installation INSTALLATION PROCEDURE CAUTION: The maximum ZTT/Plus chassis weight is 60 lb, and the center of gravity is offset to the right. The lifting lugs on the top may be used to raise the chassis with the proper equipment. All appropriate safety precautions must be taken to prevent serious personal injury.
3. Power Supply Installation 3.1 Installing the ZTT/Plus, continued 1. Place the ZTT/Plus chassis on the upper shelf of the cabinet with the circuit breakers facing the front of the cabinet. 2. Thread the battery cables through the two 0.875" holes in the cabinet shelf. The bushings should be fully seated. 3.
3. Power Supply Installation 3.2 Battery Installation and Connection NOTE: Read the safety instructions at the front of this manual prior to installing the batteries. CAUTION: Batteries shall be 12 Vdc with the same ampere rating. Do not mix old and new batteries; replace as a set using recognized batteries. Servicing of batteries shall be performed or supervised by personnel knowledgeable of batteries and the required precautions Keep unauthorized personnel away from batteries.
3. Power Supply Installation 3.2 Battery Installation and Connection, continued 3.2.1 Three Battery Installation To install three batteries for use with the ZTT/Plus: NOTE: Do not allow the loose end of a battery jumper or battery cable to contact the cabinet or other battery terminals during installation. 1. Place batteries in the bottom of the cabinet, positive terminals to the front. 2. Connect the red battery cable from the ZTT/Plus chassis to the positive (+) terminal of left battery. 3.
3. Power Supply Installation 3.2 Battery Installation and Connection, continued 3.2.2 Six Battery Connection To install six batteries for use with the ZTT/Plus: NOTE: Do not allow the loose end of a battery jumper or battery cable to contact the cabinet or other battery terminals during installation. 1. Place three batteries in the bottom of the cabinet and three batteries in the middle shelf, positive terminals to the front. 2.
3. Power Supply Installation 3.2 Battery Installation and Connection, continued 3A 2A 1A 3B 2B 1B Figure 3-3 Six Battery Connections 3.2.3 Battery Removal 1. Turn the DC circuit breaker off (down) and observe all precautions for handling batteries as outlined in “Battery Safety Notes” on pages 9 and 10. 2. Removal is in the reverse order of installation. 164201085 Rev.
4. Operation 4.1 Startup and Initial Test This chapter explains the operation of the ZTT/Plus CATV UPS including startup and initial test, the front panel, UPS operational modes, and how to use the LCD panel. After mounting the cabinet and installing the UPS, perform the following steps to start up the ZTT/Plus. TURN UP AND TEST PROCEDURE 1. If you have a 60V model, skip to step 3. If you have a 60/72/90V or 60/90V model, continue to step 2. 2. For 60/72/90V and 60/90V Models Only.
4. Operation 4.1 Startup and Initial Test, continued TURN UP AND TEST PROCEDURE, CONTINUED 3. If the inverter module is not already installed (Verify AC and DC breakers are OFF) fully insert and seat the module into the chassis and tighten the thumbscrews. 4. Turn on the external disconnect provided by the installer; then turn on the AC circuit breaker on the ZTT/Plus front panel. 5. The LCD panel indicates BATTERY BREAKER OPEN and the FAULT/STANDBY (red) LED comes on. 6.
4. Operation 4.2 Inverter Module Removal The ZTT/Plus UPS can operate in NORMAL mode (AC operation) with the inverter module removed. The module can be safely removed without disturbing the output. To prevent outages and improper operation: 1. Turn the DC circuit breaker off (down) before removal or installation. 2. Remove the inverter module by loosening the thumbscrews and pulling the handle. Leave the DC circuit breaker off. 3.
4. Operation 4.3 Front panel, continued LCD PANEL SYSTEM DISPLAY LED Normal Mode Green CONDITION / ACTION The UPS is operating normally. The UPS is on battery. Confirm the AC circuit breaker is on and the power connections are secure. When utility power is restored, the UPS returns to Normal mode after an 8-10-second delay. Standby Mode Red System Initializing Green Battery Breaker Open Red Confirm the DC circuit breaker is closed and in the ON position.
4. Operation 4.3 Front panel, continued LCD panel Menu The following information can be viewed by pushing the LCD control buttons ( and ). Push the button to scroll from beginning to end of the list. Push the button to scroll from the end to beginning of the list. 1. 2. 3. 4. 5. 6. 7. 8. 9.
5. Maintenance 5.1 General Guidelines NOTE: It is important that secure mechanical and electrical connections be maintained on this equipment. Secure connections will help prevent outages and equipment damage. A sample maintenance log sheet is provided. • • • • • • • • • • Inspect the external ground connections for mechanical integrity and good physical condition. Check the cabinet for damage and check the mounting hardware for mechanical integrity. Open the cabinet.
5. Maintenance 5.2 Maintenance Log Sheet ZTT/Plus UPS Maintenance Log Sheet For use with routine maintenance procedures in the operator’s manual. WARNING Follow all safety precautions and instructions.
6. Specifications 6.1 Power Supply Models The ZTT/Plus CATV UPS is available in three low-voltage models.
6. Specifications Mechanical Specifications Unit ZTT/Plus Chassis Height Width Depth 178mm (7") 419mm (16.5") Weight 330mm (13") 60/72/90V and 60/90V Model Chassis 27 kg (60lb) 60V Model Chassis 23kg (50lb) Inverter Module only: 3kg (6.5lb) Typical battery 241mm (9.5") (approximate measurements) 324mm (12.75") 165mm (6.5") 32kg (70 lbs.
6. Specifications 6.3 Battery Specifications Parameter Specification Quantity Voltage Type Recommends Battery Ampere Hour Rating Input Voltage Input Current (Max. during battery discharge) Input Protection Float Voltage Initial High Charge Voltage Charge current Charger Temperature Compensation Low Battery Cutout 164201085 Rev. F0 3 each 12 Vdc Sealed lead acid (non-flooded) Absorbed glass mat or gel 40 AH to 100 AH 36 Vdc 35A @ 60 Vac 42A @ 72 Vac 50A @ 87 Vac 100A circuit breaker 41.4 volts ± 1.
7. Troubleshooting SYMPTOM No output to Coax during Normal Mode No output to coax during Standby mode. PROBABLE CAUSE AC input disconnect breaker or front panel input breaker open. Close both breakers and check the power cord connections. Also check the receptacle for AC voltage. Short circuit on output (OVERLOAD SHUTDOWN displays on the LCD) Disconnect output from coax and measure AC voltage on the ZTT/Plus output connector. If okay, check the network for a short circuit.
7. Troubleshooting SYMPTOM PROBABLE CAUSE ACTION OVERTEMP SHUTDOWN displays on the LCD. Fan failure. The fan should run whenever the inverter is operating or whenever the battery is charging. If the fan does not operate in these modes, replace the inverter module ZTT/Plus does not transfer from Standby to Normal mode. Inverter AC detection problem. Open the battery breaker and pull out the inverter module while monitoring output voltage.
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