Sun Storage 2500-M2 Arrays Site Preparation Guide
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Sun Storage 2500-M2 Arrays Specifications |
This chapter describes the physical, environmental, and electrical requirements for the Sun Storage 2500-M2 Arrays. It contains the following sections:
Dimension and Weight Specifications
The floor space at the installation site must be strong enough to support the combined weight of the cabinet, controller trays, expansion trays, and associated equipment. The site also requires sufficient space for installation, operation, and servicing the arrays and sufficient ventilation to provide a free flow of air to the unit.
The total weight of an expansion tray depends on the number of drives installed.
TABLE 2-1 provides the physical dimensions and weight of the array.
TABLE 2-1 Dimensions and Weight
Components
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Height
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Width
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Depth
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Weight--Maximum
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Weight--Empty
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Controller tray
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3.4 in. (8.64 cm)
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19 in. (48.26 cm)
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21.75 in. (55.25 cm)
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59.52 lb (27 kg)
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41.01 lb (18.60 kg)
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Expansion tray
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3.4 in. (8.64 cm)
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19 in. (48.26 cm)
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21.75 in. (55.25 cm)
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57.98 lb (26.3 kg)
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39.46 lb (17.9 kg)
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TABLE 2-2 provides the weight for array components.
TABLE 2-2 Controller Tray Component Weight
Component
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Weight
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Controller module
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4.70 lb (2.131 kg)
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Power-fan module
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5.51 lb (2.5 kg)
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2.5-in. SATA drive
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0.66 lb (0.3 kg)
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3.5-in. SATA drive
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2.2 lb (1.0 kg)
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TABLE 2-3 Controller Tray Shipping Weight
Height
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Width
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Depth
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9.5 in. (24.13 cm)
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25 in. (63.50 cm)
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23 in. (58.42 cm)
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Environmental Requirements
This section describes the environmental conditions that are prerequisite to installing the unit, and heat conditions that are generated by normal operation of the unit.
TABLE 2-4 lists the environmental conditions in which the array is designed to operate.
TABLE 2-4 Controller Tray Temperature
Parameter
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Requirement
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Operating range (both cabinet and subsystem)
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50˚F to 104˚F (10˚C to 40˚C)
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Maximum rate of change
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50˚F (10˚C) per hour
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Storage range
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14˚F to 122˚F (-10˚C to 50˚C)
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Maximum rate of change
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59˚F (15˚C) per hour
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Transit change
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-40˚F to 140˚F (-40˚C to 60˚C)
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Maximum rate of change
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68˚F (20˚C) per hour
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Humidity
TABLE 2-5 lists the relative humidity ranges of the controller tray.
TABLE 2-5 Humidity (noncondensing)
Parameter
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Specification
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Operating range (both cabinet and subsystem)
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20% to 80% (noncondensing)
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Storage range
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10% to 90%
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Transit range
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5% to 90%
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Operating gradient
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50˚F (10˚C) per hour maximum
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Storage gradient
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59˚F (15˚C) per hour maximum
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Transit gradient
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68˚F (20˚C) per hour maximum
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Maximum dew point
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79˚F (26˚C)
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Maximum gradient
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10% per hour
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Table provides the relative humidity ranges for the controller tray. Altitude
TABLE 2-6 lists the altitude specifications for the array.
TABLE 2-6 Altitude Ranges for the Controller Tray
Environment
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Specification
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Operating
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100 ft (30.5 m) below sea level to 9840 ft (3000 m) above sea level
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Storage
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100 ft (30.5 m) below sea level to 9840 ft (3000 m) above sea level
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Transit
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100 ft (30.5 m) below sea level to 40,000 ft (12,000 m) above sea level
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Table provides operating, storage, and transit altitude ranges, above and below sea level, for the controller tray.Airflow and Heat Dissipation
TABLE 2-7 Airflow and Minimum Clearance
Position
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Clearance
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Front
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30 in. (76 cm)
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Back
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24 in. (61 cm)
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Table provides minimum clearance requirements in front of and behind the controller tray.
TABLE 2-8 Power and Heat Dissipation for the Controller Tray
Component
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KVA
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Watts (AC)
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Btu/Hr
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Controller modules with two power-fan modules and 12 drives
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0.400
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399
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1366
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Table provides kilovolt amperes, watts, and btu per hour.Acoustic Noise
TABLE 2-9 Acoustic Noise at 25˚C for the Controller Tray
Measurement
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Level
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Sound power (standby operation)
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6.2 bels maximum
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Sound pressure (normal operation)
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6.2 bels maximum
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Table provides normal and standby operation noise levels for the controller tray. Shock and Vibration
TABLE 2-10 lists the shock and vibration specifications for the controller tray.
TABLE 2-10 Shock and Vibration
Condition
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Parameter
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Specification
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Vibration
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Operating
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5-500-5 Hz, sinusoidal
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Nonoperating (unpacked)
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5-500-5 Hz, sinusoidal, 1 octave per minute, flat profile .50 G
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Shock
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Operating (no damage)
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10-g peak acceleration, 5 ms duration, 1/2 sine pulse
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Nonoperating (unpacked)
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20-g peak acceleration, 8 ms duration, trapezoidal pulse
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Table provides the operating and non-operating shock and vibration specifications for the controller tray.
Electrical Requirements
This section provides information regarding site power and wiring, AC power requirements, DC power requirements, and power cord routing instructions.
Site Wiring and Power
The controller tray uses wide-ranging redundant power supplies that automatically accommodate voltages to the AC power source or the optional -48-VDC power source. The power supplies meet standard voltage requirements for both North American (USA and Canada) operation and worldwide (except USA and Canada) operation. They use standard industrial wiring with line-to-neutral or line-to-line power connections.
Note - Power for the optional -48-VDC power configuration is supplied by a centralized DC power plant instead of the AC power source in the cabinet. Refer to the associated manufacturer’s documentation for specific DC power source requirements.
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Consider the following information when preparing the array’s installation site:
- Protective ground--Site wiring must include a protective ground connection to the AC power source or the optional -48-VDC power source.
Note - Protective ground is also known as safety ground or chassis ground.
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- Circuit overloading--Power circuits and associated circuit breakers must provide sufficient power and overload protection. To prevent possible damage to the array, isolate its power source from large switching loads (such as air-conditioning motors, elevator motors, and factory loads).
- Power interruptions--The controller tray can withstand the following applied voltage interruptions (with or without an integrated uninterruptible power supply [UPS]):
- Input transient--50 percent of the nominal voltage
- Duration--One-half cycle
- Frequency--Once every 10 seconds
- Power failures--If a total power failure occurs, the controller tray automatically performs a power-on recovery sequence without operator intervention after power is restored.
Note - When a power failure occurs, the controller tray uses battery power to back up the data that is in cache.
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AC Power Input
The AC power sources must provide the correct voltage, current, and frequency specified on the tray model and serial number label. The tray can run without interruption within the limits shown in TABLE 2-11.
TABLE 2-11 Tray AC Power Requirements
Condition
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Specification
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Input voltage
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100 - 240V
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Input frequency
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50 or 60Hz
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Input current
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7.0 - 2.9A
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DC Power Input
The DC power source must provide the correct voltage, current, and frequency specified on the array nameplate label and the serial number label.
Nominal input voltages for the DC power source are as follows:
- Input voltage: -42 to -60VDC
- Operating current: 21.7 to 15.3A
Controller Tray Power Factor Correction
Power factor correction is applied within the power supply, which maintains the power factor of the controller tray at greater than 0.95 with nominal input voltage.
Power Cords and Receptacles
Sun Storage 2500-M2 Arrays are shipped with either two AC power cords or two DC power cords per tray, depending on the configuration ordered.
AC Power Cords
Each AC power cord connects one of the power supplies in a tray to an independent, external AC power source, such as a wall receptacle or a UPS.
If you have a cabinet with internal power cabling, such as a ladder cord, you do not need the AC power cords that are shipped with the controller-drive tray.
DC Power Connector Cables
Each -48-VDC power connector cable plugs into the DC power connector on the back of the controller tray. The three source wires on the other end of the power connector cable connect the tray to centralized DC power plant equipment, typically through a bus bar above the cabinet.
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Caution - A qualified service person is required to make this DC power connection according to NEC and CEC guidelines.
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Caution - Risk of electrical shock--This unit has more than one power source. To remove all power from the unit, all DC MAINS must be disconnected by removing all power connectors from the power supplies.
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Two (optionally four) DC power connector cables are provided with each controller or expansion tray. Two DC power connectors are on the back of each tray’s DC power supply if additional redundancy is required.
Note - It is not mandatory that the second DC power connection on the array’s DC power supplies be connected. The second DC power connection is provided for additional redundancy only and may be connected to a second DC power bus.
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Battery Life
For a fully rated battery backup unit (BBU) battery life, cell limitations are listed in TABLE 2-12.
TABLE 2-12 Battery Life Specifications
Operating
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50˚F to 95˚F (10˚C to 35˚C)
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Storage
(up to three months)
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14˚F to 113˚F (-10˚C to 45˚C)
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Transit
(up to seven days)
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-4˚F to 140˚F (-20˚C to 60˚C)
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Table provides the battery operating, storage, and transit temperature ranges.