ELPM 300-48D ELPM300-48D, DC UPS Power Supply Installation and Operation Manual Effective: July 2009 Alpha Technologies ®
Power Alpha Technologies ®
FlexNet ELPM 300-48D Installation and Operation Manual 010-322-C0-003, Rev C. Effective Date: July 2009 Copyright© 2009 Alpha Technologies, Inc. A Member of the Alpha Group NOTE: Photographs contained in this manual are for illustrative purposes only. These photographs may not match your installation. NOTE: Operator is cautioned to review the drawings and illustrations contained in this manual before proceeding.
Table of Contents Safety Information.................................................................................................................. 5 1.0 2.0 Installation................................................................................................................. 10 1.1 Introduction..................................................................................................... 10 1.2 FlexNet Installation .......................................................................
Safety Information 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. To reduce the risk of injury or death and to ensure the continued safe operation of this product, the following symbols have been placed throughout this manual. Where these symbols appear, use extra care and attention.
General Safety Precautions To avoid injury: • This enclosure and its associated hardware must be serviced only by authorized personnel. • Enclosure must remain locked at all times, except when authorized service personnel are present. • Remove all conductive jewelry or personal equipment prior to servicing equipment, parts, connectors, wiring, or batteries. • Read and follow all installation, equipment grounding, usage, and service instructions included in this manual.
Battery Safety WARNING! Lead-acid batteries contain dangerous voltages, currents and corrosive material. Battery installation, maintenance, service and replacement must be performed only by authorized personnel. Chemical Hazards 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, and are electrically conductive and corrosive.
Battery Maintenance Guidelines The battery maintenance instructions listed below are for reference only. Battery manufacturer’s instructions for transportation, installation, storage or maintenance take precedence over these instructions. • • • • • • • • To prevent damage, inspect batteries every 3 months for: Signs of battery cracking, leaking or swelling. The battery should be replaced immediately by authorized personnel using a battery of the identical type and rating. Signs of battery cable damage.
Grounding Connection In order to provide a ready, reliable source of backup power it is necessary to establish a grounding system that not only provides for the safety of the service personnel responsible for its operation and maintenance, but also facilitates the proper operation and protection of the equipment within the network. Such a grounding system will provide protection with respect to operator safety, system communication, and equipment protection.
1.0 Installation 1.1 Introduction The FlexNet Fiber UPS model ELPM300-48D is a small-form, outdoor-rated, uninterruptible power supply for distributed communications networks. The unit can be installed in a variety of Alpha enclosures and is powered by 120Vac or 240Vac line input or 48Vdc battery string. The 48Vdc, 300 Watt output provides uninterruptible power for various distributed communications networks.
1.0 Installation, continued 1.2 FlexNet Installation Use #6 screws and attach mounting brackets to side of unit. Use #10 screws (at least one per side and attach unit on the mounting bar in the upper compartment of the enclosure. 3.40” 2.50” (86.36mm) (63.5mm) 3.30” (83.82mm) 4.00” (101.6mm) Fig. 1-1, Mounting Bracket Extension Range (Top view) 11.06” (281mm) 2.18” (55.3mm) 5.5” (139.7mm) 4.375” (111mm) 5.98” (152mm) 10.10” (257mm) 12.00” (304.8mm) Fig.
1.0 Installation, continued 1.3 Battery and Remote Temperature Sensor Probe Installation The diagram below is for illustrative purposes only. Exact battery orientation may vary. Do not connect the batteries to the Flexnet 300 unit at this time. The RTS must be taped to the side of a center battery as shown below. Connect the other end to the RJ-11 temperature jack on the front of the power supply. Air Gap Red Black 4A 3A To “Battery” connector 2A Red 1A To “Temperature” connector Fig.
1.0 Installation, continued 1.4 Output Connector The output connection is located on the front panel of the unit. Plug the 48VDC fiber node into this connector. 1.5 Status Monitoring Connector The Status Monitoring connector is located on the front panel of the unit. Associating with this connector, an opto-coupler transistor array is connected between the output alarm pins (Batt Low, Batt Miss, Repl Batt and AC Fail) and the ground pin (Tel Comm) as shown.
In order to correctly receive the alarm signals, it is recommended to put a pull-up resistor between the receive circuit’s logic power (3.3V or 5V) and each alarm line at the alarm signal monitor side, as shown below. The resistance may vary per current requirement of the receive circuit. All four alarm lines are LOW at the normal operation. When an alarm is present, the corresponding line will be HIGH.
1.0 Installation, continued 1.6 Status LEDs The status LEDs are located on the front panel of the unit. Normal operation is indicated by the green LED ON, and the red LED OFF. LED status indication also has a time delay when reporting failures. The time delay is similar to that illustrated in Section 1.5. 1.7 AC Input Power Connection The Flexnet 300 offers switchable AC input power capability.
1.0 Installation, continued 1.9 Output Distribution Board (optional) The Output Distribution Board (Alpha P/N 745-577-20) splits the ELPM300-48D’s 300W output into two 150W isolated outputs. Each output has its independent protection circuit. One output overload or short circuit will only trigger its own protection and not affect the other circuit’s normal operation. The ODB measures 6.25” W x 3.875” H x 2” D (159mm W x 98.4mm H x 51mm D).
2.0 Specifications 2.
2.0 Specifications, continued 2.1 ELPM300-48D DC Power Supply, continued Electrical — Battery Bus Voltage Recharge Time Temperature Compensation Range Temp. Compensation dV/dC End of Discharge Voltage 48Vdc nominal 10X Discharge Rate to 90% state of charge -20°C to +40°C -72mV/°C per string 42Vdc (1.
2.0 Specifications, continued 2.2 Output Distribution Board (optional) Electrical — General Efficiency > 90% Grounding Positive or negative terminal (user preference) Startup Time < 20s Electrical — Input Voltage, minimum 42Vdc Voltage, nominal 48Vdc Voltage, maximum 62Vdc Electrical — Output I/II Voltage, minimum 41 Vdc Voltage, maximum 61Vdc Current, nominal Output Ripple, max.
2.3 FlexNet Installation Kit and Options The following items are part of the FlexNet installation package and options for the ELPM300-48D power supply. NOTE: The optional 10” x 17” Battery Heater Mat (Alpha P/N 189-057-10) is not shown . Battery Cable Kit (Alpha P/N 875-218-21) See Section 1.8 Output Cable Kit (Alpha P/N 875-262-20) See Section 1.4 Mounting Brackets/Hardware (Alpha P/N 604-564-C4) See Section 1.2 (RTS) Remote Temperature Sensor (Alpha P/N 740-162-27) See Section 1.
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