Alpha Micro Secure UPS Installation & Operation Manual Part # 017-220-J0 Effective: 01/2014 member of The Group™ Your Power Solutions Partner
Alpha Micro Secure UPS Installation and Operation Manual 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. If there are questions regarding the safe operation of this powering system, contact Alpha Technologies or your nearest Alpha representative.
Table of Contents 1. 2. Safety ������������������������������������������������������������������������������������������������������������������������������������5 1.1 Safety Symbols �������������������������������������������������������������������������������������������������������������������� 5 1.2 General Warnings and Cautions ������������������������������������������������������������������������������������������ 6 1.
10. Peukert Number and Battery Capacity �����������������������������������������������������������������������������71 10.1 Introduction ���������������������������������������������������������������������������������������������������������������������� 71 10.2 Determining the Peukert Number and Peukert Capacity ������������������������������������������������� 71 10.3 Determining Peukert Capacity for Series Parallel Combinations ������������������������������������� 71 10.
Figure 22 — UPS Maintenance: Relay & Load Shed screen ��������������������������������������������������� 40 Figure 23 — Temperature trigger function via Alpha UPS Monitor ������������������������������������������� 41 Figure 24 — Temperature trigger function via HyperTerminal ��������������������������������������������������� 42 Figure 25 — Programmable Timer Operation ��������������������������������������������������������������������������� 42 Figure 26 — Time Of Day Action Operation ������������������
1. Safety SAVE THESE INSTRUCTIONS: This manual contains important safety instructions that must be followed during the installation, servicing, and maintenance of the product. Keep it in a safe place. Review the drawings and illustrations contained in this manual before proceeding. If there are any questions regarding the safe installation or operation of this product, contact Alpha Technologies or the nearest Alpha representative. Save this document for future reference. 1.
1.2 General Warnings and Cautions You must read and understand the following warnings before installing the Alpha Micro Secure and its components. Failure to do so could result in personal injury or death. • Read and follow all instructions included in this manual. • Do not work alone under hazardous conditions. • Only qualified personnel are allowed to install, operate and service this system and its components. • Use proper lifting techniques whenever handling equipment, parts, or batteries.
• Never let live battery wires touch the Alpha Micro Secure the enclosure or any other metal objects. This can cause a fire or explosion. • Never dispose of batteries in a fire. The batteries may explode. Follow the manufacturer’s directions and check with your local jurisdictions for safe battery disposal. • Before attaching the batteries to the Alpha Micro Secure make sure that the polarity is correct.
2. General Description 2.
The Alpha Micro Secure has a bar with monitoring LEDs, an RS-232 connector and dry contacts for attachment of an external monitoring panel. Dry Contacts Top view C1 1 NO 2 C C2 3 NC 4 NO 5 C 6 NC Green and Red LEDs RS-232 Connector Bottom View • C1 is the “On Batt” contact, triggered when the UPS is in Battery mode and backup battery power is provided to the load. Microprocessor UPS Interior The dry contacts have a maximum rating of 1A at 250V.
3. Site Planning WARNING! The Alpha Micro Secure must be installed in a restricted area accessible only by qualified service personnel. The Alpha Micro Secure must be correctly grounded for proper operation according to local and national electrical code. The utility line attached to the Alpha Micro Secure input MUST be protected by a circuit breaker certified for this use in accordance with the local electrical code. The AC input and AC output must each have a disconnect device attached.
4. Unpacking the Alpha Micro Secure Follow these guidelines for unpacking the Alpha Micro Secure. WARNING! The Alpha Micro Secure is heavy, more than 45 kg (100 lb) with batteries. Use proper lifting techniques. The lifting and moving should be done by at least two people to avoid injury. 1. Select a suitable area for unpacking. 2. Store all the packing material and boxes for possible equipment returns. 3. Check the contents in your product package. See “Checking the Package Contents” on this page. 4.
5. Installation Once the installation location has been planned and prepared, you are ready to install the Alpha Micro Secure. There are three steps to setting up the Alpha Micro Secure: 1. Mounting the Alpha Micro Secure 2. Wiring the Alpha Micro Secure 3. Installing and wiring the external batteries 5.1 Transporting and Lifting WARNING! To avoid personal injury or damage to the equipment, always use at least two installation personnel to remove the unit from its container.
5.2.1 Mounting to a Wall The Alpha Micro Secure can be mounted to a wall or to wall studs. The wall or studs should be able to hold a weight of at least 45.0 lbs (20.4 kg) and they must be plumb and the case mounted so it is level. Using the case as a template, secure the case to the wall with the 4 Phillips-head wood screws supplied with the unit. 12.0in (30.5cm) 8.0in (20.
5.2.2 Mounting to a Wooden Pole The Alpha Micro Secure can be pole mounted with the optional mounting bracket (Alpha Kit# 740-751-21). It allows you to mount to either a vertical or horizontal, steel, concrete or wooden pole. Procedure To bolt the UPS to the pole you need the optional mounting bracket and 2, ½" bolts (not provided) to fit the pole. 1. Drill holes into the pole to fit the bolts. 2. Attach the bracket to the pole. 3.
5.2.3 Mounting to a steel or concrete pole To strap mount the Alpha Micro Secure to the pole you need the optional mounting bracket and 2, ½" straps (Band-It #C20499 straps, #C00369 Tool and #C25499 Buckle or equivalent). 1. Attach the straps to the mounting bracket. 2. Attach the bracket to the pole. 3. Secure the UPS enclosure to the mounting bracket with the 2 mounting screws and 2 nuts provided with the kit.
5.3 Wiring the Alpha Micro Secure WARNING! Before starting, make sure line power is turned off and the UPS Input breaker and battery breakers are OFF. 5.3.
5.4 Installing and Wiring the Batteries WARNING! Before proceeding, verify the line wire is attached to the line terminal block, the ground wire is attached to the ground terminal block and the neutral wire is attached to the neutral terminal block to prevent accidental shock or electrocution. Make sure the battery breaker is OFF before wiring the batteries. Procedure 1. Install the 4 batteries and wire them up as shown. 2. Use a DC voltmeter to verify the battery string’s polarity and voltage (24Vdc).
5.5 Powering Up the Alpha Micro Secure Make sure that the Line power is qualified but turned off and the batteries are fully charged. Procedure 1. Turn on the Battery breaker. 2. Switch on the Line power and turn on the Input breaker. 3. Ensure the LEDs are working. See LED status table below. 4. When Line power is first applied, both LEDs illuminate and then only the green light remains on if the UPS is in Line mode.
6.
6.1 Communicating with the Alpha Micro Secure There are several ways you can communicate with the Alpha Micro Secure UPS: 1. Using a RS-232 interface, you can access the UPS command line system with Windows HyperTerminal or other terminal emulation program. 2. Using a RS-232 serial connection via the Alpha UPS Monitor installed on your computer. The Alpha UPS Monitor software can be downloaded from www.alpha.ca. 3.
6.2 6.2.1 Communicating with the RS-232 interface Wiring the RS-232 port The Alpha Micro Secure’s front panel has a DE-9 female connector. When connected to a PC with Windows HyperTerminal or other terminal emulation software, the Alpha Micro Secure can be remotely monitored and controlled with it’s command-line system. The Alpha UPS Monitor provides a Windows or web browser type of control. Procedure 1.
6.3 Using the Main Menu The Alpha Micro Secure main menu screen runs on a command line system. This program does not recognize the backspace or delete keys even if it appears that way on the monitor. If you make a mistake and press Enter, the Alpha Micro Secure echoes the command back exactly as you typed it. Press Enter and retype the command again. If you choose not to use the command line system, you can use the Alpha UPS Monitor to control and monitor the Alpha Micro Secure 6.3.
6.4 RS-232 Menu Tree Submenus #1, 2 and 4 are read-only screens for monitoring the Alpha Micro Secure To control the Alpha Micro Secure use submenu #3, the Maintenance submenu.
6.4.1 Line Status Line status tells you the line’s condition. For an updated value, press Enter. Table D — Line Status Normal The line is within specifications. See specifications, “Boost/Buck/Line Transfer Thresholds”. The Alpha Micro Secure is operating in Line mode. Boost Line voltage is out of tolerance. The Alpha Micro Secure is operating in Boost mode. Boost2 Line voltage is out of tolerance. The Alpha Micro Secure is operating in Boost 2 mode. Buck Line voltage is out of tolerance.
6.4.3 Fault and Alarm Displays Fault and alarm displays any malfunctions the Alpha Micro Secure has encountered. Also see "Troubleshooting". Table F — Faults Short_Circuit The load has a short. Vout_Hi The output voltage is above specifications. Batt_Hi The batteries cannot be charged. Batt_Lo The batteries are almost discharged. Vout_Lo The output voltage is below specifications. Overload The Alpha Micro Secure is overloaded. Remove excess loads.
6.4.4 Adjusting and Controlling the Alpha Micro Secure The Maintenance submenu lets you control the Alpha Micro Secure and change selected items to meet your operational needs. Procedure From the Main menu, type 3 and press Enter. Table H — Maintenance Submenu 30 Battery Test Options This starts the battery test and sets how long the test will run. The default setting for the test duration is 2 minutes, but this can be adjusted in 1 minute intervals. See "Operating the Alpha Micro Secure, BATT TEST”.
6.4.5 Programming the Dry Contacts and the Clock On the Alpha Micro Secure front panel. contacts (C1 to C6) can be programmed to meet your specifications with RS–232 communications. You can also adjust the Alpha Micro Secure date and time. Programming the Dry Contacts The functions of dry contacts C1 to C5 (and if factory configured, dry contact C6) can be changed with RS-232 communications. For example, to change contact C1: 1.
6.4.6 Setting the Timer Contact The front panel’s timer contact can be programmed to suit your application. See "Contacts C1 to C6” and "Programming the Dry Contacts and the Clock". The table below explains how.
6.4.7 Setting the Date and Time Table K — Setting the Date and Time Enter command UPS display clock and press Enter *clock=12/31/07 22:00:00 clock=010107 120000 and press Enter *clock=01/01/07 12:00:00 Description Returns the current date and time. † Sets the date and time to Jan 01, 2007, 12:00 pm. Notes: 1. Time is displayed in the 24 hours clock format. 2. Changing the mm/dd/yy format with DATE SEL on the LCD Control menu does not change the RS-232 mm/dd/yy format. 3.
6.4.8 Viewing the Serial Number To display the serial number of the Alpha Micro Secure UPS, type "∗QY0" at the command line and press "Enter". 6.4.9 Setting the Peukert Number and Capacity You can set the Peukert Number and Capacity using the RS-232 interface or the web interface. To display the current Peukert Number, type "∗QY6" at the command line and press "Enter". To change the Peukert Number to 1.1345, type "∗ST6:1.1345" at the command line and press "Enter".
6.4.10 100-Event Log Up to 100 events are stored in the Alpha Micro Secure’s log. If more than 100 events occur, the oldest is overwritten. Procedure 1. To see the log, type event (all lower case) and press Enter.
6.4.11 Communicating with the Alpha UPS Monitor Introduction The Alpha UPS Monitor graphical user interface (GUI) provides web or Windows© like computer communications with the Alpha Micro Secure The screen and its features are shown below. It is used to monitor, control and set various parameters like the date and time, determine when to perform the weekly self test, change the relay configurations, etc.
6.4.12 Checking Your Windows Computer for the .NET Framework 1. Click on the Start button. 2. Go to and click on Settings. 3. Click on Control Panel. 4. Double-click on the Add or Remove Programs icon. 5. When the window shown in the figure below appears, scroll through the list of applications. If you see Microsoft .NET Framework listed, the Framework is already installed and you can install the Alpha UPS Monitor.
6.4.13 Installation and Set Up The following tools and materials are required: • Alpha UPS Monitor, available for download from www.alpha.ca. • Windows 2000 or later with Microsoft .NET framework installed. • DE–9 serial straight-through computer cable. Procedure 1. Install the Alpha UPS Monitor onto your computer. Restart the computer. If you install the Alpha UPS Monitor on a version of Windows without the .
6.5 Operation The various screens are described on the following pages and operate like Web or Windows-type screens. Point and click to change the various functions or fields. The on line indicator shows if you are connected to the Alpha Micro Secure The Alpha UPS Monitor automatically polls the Alpha Micro Secure to obtain its status. The default setting is polling once every 3 seconds, but you can change this in the UPS Maintenance-Unit Configuration screen in the “Status Refresh Time” menu.
6.5.2 UPS Monitoring These read-only screens show the Alpha Micro Secure’s current input and output values and other measurements. Input & Output Shows the current line input and Alpha Micro Secure output values and the Alpha Micro Secure’s present operating mode. Figure 15 — UPS Monitoring: Input & Output screen Battery & Inverter Shows the battery string’s status and how many times and for how long the inverter has been active.
Relay & Load Shed Shows how the front panel dry contacts are configured. If any relays are used for load shedding, the time setting is shown. Figure 17 — UPS Monitoring: Relay & Load Shed screen User Input Status Shows the current status of the user programmable inputs 1 to 3.
6.5.3 UPS Maintenance The UPS Maintenance screens are used to configure and adjust the Alpha Micro Secure to meet your operating needs. To change parameters, either click on the On/Off buttons or choose an item from a drop down menu. To execute the changes, click on the Update Settings button. If you do not click this button, the changes will not happen.
An accurate battery runtime estimation requires the following parameter to be adjusted: • Peukert Number: Refer to the appendix for information about how to calculate the Peukert number to be entered here. • Battery Capacity: This is the rated capacity (Ah) of the battery shown on the battery data sheet. Do not confuse the battery capacity with the Peukert capacity. • Battery Open Circuit Voltage: This number is obtained from the battery data sheet.
Relay & Load Shed Is used to configure the front panel’s dry contact to provide a signal for turning off the load. Figure 22 — UPS Maintenance: Relay & Load Shed screen Controlling the external fan by temperature triggered dry contact The Alpha Micro Secure has up to 6 dry contacts (C1 to C6) on the front panel which can be configured by the user to open or close based on the specific trigger conditions. Dry contact functions currently available include: Alarm, Fault, Timer, Low Battery, On Battery, etc.
Dry contact functions are not programmable through the LCD. Use the RS-232 GUI or the HyperTerminal instead. 2. RS-232 GUI – Figure 24a shows the Relay Configuration window under the UPS Maintenance > Relay & Load Shed screen. As an example, to assign C1 as the Temperature trigger, select Temperature from the drop down menu. Click Update Configuration and the current status will update momentarily. In the example shown below, the fan on temperature threshold is set at 55°C.
3. RS-232 HyperTerminal – the Temperature trigger function can be assigned to any available dry contacts as described in "Programming the Dry Contacts" (e.g. c1=11, where 11 is the assigned index for the Temperature trigger function.) After establishing an RS-232 connection with the Alpha Micro Secure at the HyperTerminal screen prompt, type Temp and press Enter to display the current temperature setting Alpha Micro Secure returns *temp=20). To change the value to +35°C, type temp=35 and press Enter.
A typical application of this timer controlled dry contact function is to control a traffic light. When the grid power fails, the Alpha Micro Secure goes into the Inverter mode and continues supplying backup power to the traffic light. Since the batteries supplying the backup power have limited capacity, a timer controlled dry contact is usually configured to switch the traffic light into the flashing amber or flashing red mode after a user-defined period to conserve battery power.
Figure 28 — Time Of Day Action Status Once the Time of Day Action is configured, the Alpha Micro Secure will automatically disable the timers during the Inverter mode at the defined peak periods. You can switch off the Time of Day Action by setting one or both time period(s) to OFF. The dry contact will be activated by the timer regardless of the peak period settings. Time & Date Is used to set the Alpha FXM’s date and time.
Password Is used to set the Alpha Micro Secure’s password. The factory set password is 1111. Figure 30 — UPS Maintenance: Password screen The password is limited to 4 alphanumeric characters. The software will not accept more than 4 characters. User Input Three programmable User Inputs exist. Their functions are similar to the Dry Contact relays. Supported functions include: (a) Shutdown, (b) User Alarm and (c) Self Test.
Procedure 1. Select UPS Maintenance > User Input to display the User Input Configuration window. Figure 32 — User Input Configuration: Setting the Trigger Type 2. In the Input 1 column, select the Type down arrow to display the 3 types of available triggers: Edge Trigger, Level Toggle, and Level Alternative. For more information on how triggers work, see "Types of Trigger". 3. Select Edge Trigger. 4. Select Low from the Level drop down menu.
7. Check the User Input Current Status at the UPS Monitoring > User Input Status page. Figure 35 — User Input Current Status Perform a quick test by shorting the User Input 1 dry contact pin (Pin 19 of C6) to ground (Pin 22 of C6) with a short length of PVC insulated electronic wire. This will trigger the Alpha Micro Secure to issue a User Input Alarm as shown below.
Operation Many of the screens used for Ethernet communications look and function the same and contain the same information as the Alpha UPS Monitor screens. There are additional screens only available with Ethernet communications which are detailed below. Configure Site Information This screen is used to enter site location information into the UPS’s memory. Figure 37 — Alpha UPS Monitor: Configure Site Information Communications • Configure TCP/IP is used to set the UPS’s IP or TCP address.
Restoring All Parameters to Default Values The purpose of this command is to reset the Alpha Micro Secure to the factory default state. See Table P for a list of parameters that will be restored to their default values. CAUTION! This command resets all parameters that are user-configurable. All previously programmed operation will be lost. Implement a backup plan for mission critical operations. This command is password protected.
Table M — List of Parameters Maximum battery charging current Temperature compensation of battery charging Maximum allowable duration of output short circuit before shutdown Property settings of programmable user input #1 Action #1 setting of programmable user input #1 Action #2 setting of programmable user input #1 Property settings of programmable user input #2 Action #1 setting of programmable user input #2 Action #2 setting of programmable user input #2 Property settings of programmable user input #3 Ac
Alarms & Faults This read-only screen shows the operating status of the Alpha Micro Secure When the fault or alarm indicators on the horizontal bar are illuminated, place the mouse cursor over the light to display the context sensitive message.
To view all the events, click on the View All button to open the Event Log Monitor window. Clicking on the Clear History button clears the log. This action cannot be undone. Figure 42 — Alpha UPS Monitor: Event Log Monitor screen In the Event Log Monitor window, the events are displayed by date and time. Scroll up and down the list to select the events you want to see. To download the latest events from the Alpha Micro Secure click on the Get Events button. This process may take a few minutes.
Upgrade Files This feature is available only on Alpha Micro Secure UPS equipped with the network interface card factory option. To upgrade the Alpha UPS Monitor firmware, browse to the .bin file and click OK to start the upload. This may take a few minutes to complete. Figure 44 — Alpha UPS Monitor: Upgrade Firmware To upgrade the Communication module, browse to the .ezip file and click OK to start the upload. This may take a few minutes to complete.
Keep Alive The Keep Alive feature can be used to reset power when a communication failure is detected. The purpose of the reset is to temporarily remove power and reset the local communications equipment powered by this unit.
Keep Alive status/manual control: a. The Status field allows the user to enable or disable the Keep Alive function. When disabled the alarm is cleared. b. The Delay to Startup field allows the user to set the time to the first ping from the enable ping or UPS restart after a ping failure. Minimum = 5 s, Maximum = 3600 s. Keep Alive Method to detect communication failure: a. The Protocol field allows Ping as the only option. b. The IP Address field is used to enter the IP address to be pinged. c.
6.6 Communicating Via The Intranet or Internet If the Alpha Micro Secure is equipped with the optional, factory-installed communication module, then the internet or a company intranet can be used to communicate with the Alpha Micro Secure In addition, the Alpha Micro Secure can be monitored and controlled via a web browser or with SNMP protocols. 6.6.1 Installation and Set Up The following tools and materials are needed: • Computer with network card and web browser. • Cross over cable or hub.
6.6.3 Types of Trigger There are 3 types of trigger: Edge trigger When the user input changes from one state to the other, the Alpha Micro Secure is triggered to perform Action #1. If the level is set to High, the action will be triggered by a Low to High edge (leading edge). If the level is set to Low, the action will be triggered by the High to Low edge (falling edge).
Level Alternative When the level is set to High, the Alpha Micro Secure is triggered to perform the next action when the user input changes from Low to High. If the input then changes from High to Low, no action will be triggered because the level is set to High. In other words, only a Low to High user input level triggers an action when Level is set to High. Similarly, when Level is set to Low, the Alpha Micro Secure will trigger an action only with a High to Low user input.
7. Maintenance 7.1 Updating the Micro Secure Firmware (with Communication Module) If your Alpha Micro Secure is provided with the factory-installed communication module, the firmware upgrade can be done via an intranet or internet connection. • Before you begin, download the latest version of firmware to your computer from www.alpha.ca. CAUTION! Upgrade Ethernet card first, if applicable, and then FXM software. 7.1.1 Communication module To upgrade the Communication module, browse to the .
To upgrade the FXM firmware, browse to the .fbin or .bin file and click Send File to start the upload. This may take a few minutes to complete. Figure 51 — Upgrade Firmware 7.2 Updating the Micro Secure Firmware (no Communication Module) Material Required • Laptop with a DB-9 COM Port Before Upgrading • Install the FXMProgrammer software onto the laptop. • Copy the upgrade firmware file (.sx or .fbin files) to a folder on the laptop. Procedure 1. Pull out the battery fuse on the Micro Secure 100.
4. Connect the DB-9 to DB-9 cable between the Micro Secure and the laptop. 5. Install the battery fuse. 6. Start the FXMProgrammer software. 7. Select a COM port from the drop down list of available ports. Serial Ports -> Refresh Ports refreshes COM ports in the drop down box top right) View available serial ports with Serial Ports -> List Ports Displays the software version currently installed on the FXM Displays the software version about to be installed on the FXM. 8.
9. Click on Apply the update to the FXM unit. 10. Watch the progress bar and the Programming Messages window. (If there is a connection or any other kind of error, click on Apply the update again.) The Micro Secure will reset automatically once the upgrade is finished. 11. Close the FXMProgrammer software. 12. Remove the battery fuse. 13. Remove the Jumper on JP1. 14. Install the battery fuse. 15. Connect the AC input to the Micro Secure.
7.3 Testing and Replacing the Batteries 7.3.1 Battery life Batteries lose their ability to store power as they age. Regularly test the batteries to ensure that they can continue providing reliable service. Battery life is reduced by three major factors: • Temperature – higher ambient temperatures, especially above 25°C, will reduce battery life. For example, an average operating temperature of 27°C will likely reduce the life of the battery by 25%.
7.3.3 Battery Maintenance The batteries supplied with this unit are sealed and maintenance free. Regularly ensure that all connectors are tight and free of corrosion. The presence of corrosion, swelling of the battery case, or distortion in the shape of the case suggests that the batteries need to be replaced. 7.3.4 1. Battery Conductance Test (Optional) Place the conductance meter probes across Battery #1. 2. Record the voltage and Siemens values in a log book. 3. Repeat for batteries #2, #3 and #4.
WARNING! Read and understand the battery safety instructions in “Product Safety Information”. CAUTION! Make sure all the replacement batteries are of the same type and rating. Failure to do so could result in improper charging and damage to the batteries. The Alpha Micro Secure cannot provide backup battery power while the batteries are being replaced. If the line becomes unqualified while the batteries are being replaced, the Alpha Micro Secure shuts down and no power is provided to the load.
7.4 Preventative Maintenance Perform preventative maintenance on the Alpha Micro Secure module every 6 to 12 months. For mission critical applications such as backup traffic intersections, more frequent maintenance should be done. Proper implementation of the following procedure will insure that your system continues to provide reliable backup power in the event of a utility power failure. 7.4.1 Tools and Materials Required • Wrench set. • Labels and marker to number batteries.
8.
9. Specifications Table P — Mechanical Specifications Parameter Value Dimensions H x W x D mm (in) Weight without batteries kg (lb) 50 (22.7) with 4 batteries 25 (11.
Table Q — Electrical Specifications Parameter Value Input Voltage (nominal), Vac Frequency, Hz, ±5% Current, A Input circuit breaker 120 or 230 (optional 220). 60/50 (auto-frequency). 2.0 @ 120Vac 1.0 @ 220/230Vac 3.0A, 125Vac 1.
Table R — Regulatory Parameter Value Electrical Safety UL 1778, CSA 107.1, EN 50091-1-2, EN60950. Emission FCC Part 15, Subpart B, Class A, CSPR22, EN55022 Level A. Marks C CSA US, CE (230 Vac versions only). Packaging Designed to meet requirements for ISTA program. Radio Frequencies The Alpha Micro Secure generates, uses and radiates radio frequencies if not installed and tested in accordance with the instructions in this manual.
10. Peukert Number and Battery Capacity 10.1 Introduction The Alpha Micro Secure series UPS units run on batteries when the AC utility power fails. In this mode, the user may want to estimate the remaining time that UPS batteries can supply power to the loads. The battery run time remaining is calculated based on the Peukert equation. Two critical parameters are required for the equation: • Peukert number. • Peukert capacity.
10.4 Example The following example shows how to calculate Peukert number and capacity from a configured battery string. Consider four Alpha 195GXL batteries connected and configured as shown in the figure below. Two of the four batteries are connected in series, and the two series strings are connected in parallel to the 24Vdc output.
10.5 Using the Spreadsheet Download the spreadsheet “Peukert’s Parameters Calculator.xls” from www.alpha.ca website.
11. Warranty Alpha Technologies Ltd. warrants all equipment manufactured by it to be free from defects in parts and labor, for a period of two years from the date of shipment from the factory. The warranty provides for repairing, replacing or issuing credit (at Alpha’s discretion) for any equipment manufactured by it and returned by the customer to the factory or other authorized location during the warranty period. There are limitations to this warranty coverage.
12. Emergency Shutdown Procedure The Alpha Micro Secure UPS contains more than one live circuit. In an emergency, line power may be disconnected at the UPS’s input, but AC power can still be present at the output. 1. Switch OFF the input circuit breaker. 2. Switch OFF the battery circuit breaker. 3. Disconnect the AC input power. 4. Disconnect the internal battery string.
Alpha Technologies Ltd. 7700 Riverfront Gate Burnaby, BC V5J 5M4 Canada Tel: +1 604 436 5900 Fax: +1 604 436 1233 Toll Free: +1 800 667 8743 Alpha Energy, Alpha Technologies Inc. 3767 Alpha Way Bellingham, WA 98226 United States Tel: +1 360 647 2360 Fax: +1 360 671 4936 Alpha Industrial Power Inc.
