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The DLance Book Page 2 of 2 TABLE OF CONTENTS The DLance Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Chapter 1: WS_FTP and Symmetra. . . . .1 WS_FTP Pro for Windows . . . . . . . . . . . . . . . . . . . . . . . . . . 1 What Is WS_FTP Pro? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 How to Use WS_FTP Pro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 How to Connect to an FTP Site. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Symmetra Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Power Processing System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Battery Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Control/User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Load-Disconnect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Online Operating Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 On-Battery Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Bypass Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Chapter 2: WS_FTP and Symmetra. . . .15 WS_FTP Pro for Windows . . . . . . . . . . . . . . . . . . . . . . . . . 15 What Is WS_FTP Pro? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 i Table of Contents How to Use WS_FTP Pro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 How to Connect to an FTP Site. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Symmetra Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Power Processing System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Battery Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Control/User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Load-Disconnect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Online Operating Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 On-Battery Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Bypass Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Chapter 3: WS_FTP and Symmetra. . . .29 WS_FTP Pro for Windows . . . . . . . . . . . . . . . . . . . . . . . . . 29 What Is WS_FTP Pro? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 How to Use WS_FTP Pro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 How to Connect to an FTP Site. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Symmetra Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Power Processing System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Battery Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Control/User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Load-Disconnect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Online Operating Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 On-Battery Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Bypass Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 iiiiii Chapter 1: WS_FTP and Symmetra In This Chapter: • WS_FTP Pro for Windows • Symmetra Overview • Operating Modes WS_FTP Pro for Windows These instructions were written to familiarize nonspecialists and executives with WS_FTP Pro. The following instructions introduce you to WS_FTP Pro, a shareware program that enables you to upload and download files on the Internet, and then shows you how to perform basic tasks. To understand these instructions, you need an Internet account and basic familiarity with Microsoft Windows. Local files Server files Page 2 of 14 Chapter 1: WS_FTP and Symmetra What Is WS_FTP Pro? WS_FTP Pro is a program that allows you to send (upload) and receive (download) files on the Internet. WS_FTP Pro can be used for uploading personal web pages and downloading software. Because FTP (File Transfer Protocol) can handle large files, using the WS_FTP Pro program is also a more reliable way to transfer files than using email attachments. How to Use WS_FTP Pro Click on your Start menu, select Programs, then WS_FTP Pro. The WS_FTP Pro application launches on your system. You will use this to connect to your web server, and drag files from the left screen area that lists files on your local drives (and looks similar to Windows Explorer), to the right area, that shows files on the remote server. How to Connect to an FTP Site. Before you can transfer files to or from an FTP site, you must first connect to the site. 1. Open a web browser. 2. Open this URL: www.foobar.com 3. Register in the site, and then view the tutorial videos beginning with “Using WS_FTP Interface to upload files to a web server. [Numbered] Symmetra Overview Page 3 of 14 Symmetra Overview The Symmetra is a high-performance, uninterpretable power array system that is designed for large-scale loads. It provides conditioned, reliable AC power to load equipment, and provides protection from power blackouts, brownouts, swells, sags, surges, and interference. The Symmetra Power Array system is comprised of either a MiniFrame, or a MasterFrame, and a variable set of hot swappable modules. A MiniFrame system can be configured to deliver a maximum output of 8kVA, and a MasterFrame system can deliver a maximum of 16kVA. The computer system that manages the system and provides system notifications, the power processing components, and the batteries themselves are all designed as stand alone modules. If one should fail, it can easily be replaced by an onsite technician without interrupting the flow of power to the datacenter. MiniFrame MasterFrame Page 4 of 14 Chapter 1: WS_FTP and Symmetra Theory of Operation The Symmetra Power Array is comprised of three functional components: A power processing system, a battery source, and a control/user interface system. The relationship of these functional components is illustrated below. Symmetra Overview Power Processing System The power processing system delivers conditioned AC output power with a low distortion sinewave. Under normal operating conditions, power is received from the AC mains (utility) power source, conditioned by the power processing system, and delivered to the load equipment. In the event of an AC mains power source failure, the power processing system receives power from the battery source (battery modules), converts it to conditioned AC, and delivers it to the load equipment. When AC mains power is present, the power processing system also maintains the battery source at full charge. The power processing system in a Symmetra is comprised of one or more power modules. Each power module contains the electronic components for a complete 4kVA UPS, including the rectifier, charger and inverter. When two or more power modules are present, they operate in parallel, sharing the load equally. By configuring the system with at least one more power module than is required to power the load (a redundant power module), Symmetra can sustain a power module failure and still deliver full power to the load equipment. The failed module is identified by the control/user interface system, an alarm is initiated to notify the user of the module failure, and the hot-swappable module can be replaced by the user, without the need to power down the load equipment. A Symmetra MiniFrame provides bays for up to three power modules, and a MasterFrame provides bays for up to five. This provides the full system capacity (8kVA and 16kVA respectively), plus one redundant power module. Battery Source The battery source is comprised of parallel, hot-swappable, 120V battery modules. These are housed in the Symmetra frame, and in an optional XR Extension Battery frame. A Symmetra MiniFrame provides bays for up to two battery modules and a MasterFrame provides bays for up to four. Both of these frames can be connected to an XR Extension Battery frame. Additional battery modules increase onbattery run time. Page 5 of 14 Page 6 of 14 Chapter 1: WS_FTP and Symmetra Control/User Interface The control/user interface system coordinates the operation of the Symmetra and reports status conditions via several user interface options. Functions performed by the control user interface component include module coordination and state control, analysis and reporting of system status, and reporting of alarm conditions. Module Coordinations & State Control - The Symmetra incorporates a main intelligence module (MIM) that continuously monitors the system, and delivers data to both the PowerView user interface, and to the communication ports.The MIM coordinates the initial power up of the system, transfers it into and out of bypass mode, transfers the power source between the mains AC power, and the battery source, and coordinates shutdown operations. System Status Monitoring - The MIM gathers data about the system components and delivers it to both the PowerView interface, and to the computer interface ports. System status monitoring and reporting data include the current predicted run time, the status of individual battery and power modules, the input & output voltage, input & output voltage frequency, and the size and status of the output load. Alarm Condition Detection - The control/user interface system monitors the Symmetra for alarm conditions. If an alarm condition is detected, the PowerView user interface initiates an audible and visual alarm. Alarm conditions include on-battery, low battery, module faults, overloads, loss of redundancy and a variety of other default and user defined events. All possible alarm messages and the appropriate user responses are provided in later chapters. Operating Modes The Power Array functions in one of four operating modes, depending on user commands, the status of the AC mains utility voltage, and the condition of the Symmetra itself. The four modes are Load-Disconnect, On-Line, On-Battery, and Bypass. Each is explained below. The PowerView interface on the Symmetra reports the current operating mode. Operating Modes Page 7 of 14 Load-Disconnect Mode In the load-disconnect mode, incoming mains (utility) power is present and the system is internally powered, but no output power is delivered to the load equipment. The Symmetra enters the load-disconnect mode at the initial power up when the system enable switch is switched to the .on. position. When the system is operating on-line, and the .load off. command is entered in the PowerView interface, it returns to the loaddisconnect mode. The figure below illustrates power flow. Load-Disconnect Mode Page 8 of 14 Chapter 1: WS_FTP and Symmetra Online Operating Mode The on-line operating mode is the .normal. operating mode. When the system is in the on-line operating mode, the Power Array receives AC mains (utility) power and delivers conditioned power to the load equipment. The Power Array maintains proper battery charge, regulates the output voltage and frequency, and protects the load from surges and electrical noise. Symmetra will operate in this mode if it has been set to turn the load on, the incoming utility voltage is present and functioning properly, and there are no abnormal conditions preventing such as an overload. See the illustration below for a diagram of the power flow when the system is in the online operating mode. On-line Operating Mode Operating Modes Page 9 of 14 On-Battery Operating Mode When in the on-battery mode, the Power Array draws DC power from the battery source, converts it to conditioned AC power and delivers it to the load equipment. Symmetra typically enters this mode in the event of a mains (utility) power failure. It will also operate in the on-battery mode during a user initiated battery self test. On-battery operation is limited in duration and is dependent on the number of battery modules, their state of charge, and the size of the load. Symmetra will remain in the on-battery state until either the incoming utility power is restored or the batteries are depleted. See the diagram below to understand the power flow when the system is in the on-battery mode. On-Battery Operating Mode Page 10 of 14 Chapter 1: WS_FTP and Symmetra Bypass Operating Mode When the Symmetra is in the bypass operating mode, the system is bypassed and utility power is delivered directly to the load. Symmetra is equipped with an automatic bypass function. It is automatically activated when AC mains power is present, but the load cannot be powered by the inverter. Events which may cause this include overloads and failed non-redundant power modules. The Symmetra automatically returns to the on-line operating mode when the triggering event clears. A manual maintenance bypass switch at the back of the frame allows a user to manually bypass the system. The illustration below shows power flow when the system is in the bypass mode. Bypass Operating Mode Operating Modes Page 11 of 14 Definitions The following terms are used in this manual. Review these definitions for a better understanding of your new Symmetra system: Term Definition Redundancy Indicates the presence of one or more extra power mod- ules which allow the system to sustain a fault and still provide protection to the load. To be fully redundant, the system should be configured with a redundant intelligence module, and at least one redundant power module. Note: The number of battery modules determines the length of the run time. While it is prudent to use the maximum number of battery modules possible, they are not considered redundant. N+1 Redundancy Refers to the level of power module redundancy. “N” represents the number of power modules required to power the load, and +1, +2, etc.. represents the number of extra power modules that are present. For example, a 7.3 kVA load requires two power modules for adequate protection. If the Symmetra is configured with only two modules, it has an .N+0,. level of redundancy. (No redundancy). If the system is configured with three power modules, it has an .N+1. redundancy. Depending on the size of the load, Symmetra can be configured with 2, 3 or even 4 extra power modules. Respectively, it would have an N+2, N+3, or N+4 level of redundancy. Capacity The maximum amount of output power that a Symmetra system can deliver. The capacity is limited by the lesser of the frame size and the capacity of the installed power modules. As an example, a MiniFrame (8kVA) with one power module installed (4kVA) has a system capacity of 4kVA. A MasterFrame (16kVA) with five power modules (20kVA) has a system capacity of 16kVA. Hot-swappable All of the Symmetra modules are hot-swappable. This means they can be replaced safely by a user or service provider while clean uninterpretable power continues to be delivered to the load. Servicing the module requires no downtime. Your datacenter remains powered and fully protected while the module is being replaced. Page 12 of 14 Chapter 1: WS_FTP and Symmetra Operating Modes Page 13 of 14 Page 14 of 14 Chapter 1: WS_FTP and Symmetra Chapter 2: WS_FTP and Symmetra In This Chapter: • WS_FTP Pro for Windows • Symmetra Overview • Operating Modes WS_FTP Pro for Windows These instructions were written to familiarize nonspecialists and executives with WS_FTP Pro. The following instructions introduce you to WS_FTP Pro, a shareware program that enables you to upload and download files on the Internet, and then shows you how to perform basic tasks. To understand these instructions, you need an Internet account and basic familiarity with Microsoft Windows. Local files Server files Page 16 of 28 Chapter 2: WS_FTP and Symmetra What Is WS_FTP Pro? WS_FTP Pro is a program that allows you to send (upload) and receive (download) files on the Internet. WS_FTP Pro can be used for uploading personal web pages and downloading software. Because FTP (File Transfer Protocol) can handle large files, using the WS_FTP Pro program is also a more reliable way to transfer files than using email attachments. How to Use WS_FTP Pro Click on your Start menu, select Programs, then WS_FTP Pro. The WS_FTP Pro application launches on your system. You will use this to connect to your web server, and drag files from the left screen area that lists files on your local drives (and looks similar to Windows Explorer), to the right area, that shows files on the remote server. How to Connect to an FTP Site. Before you can transfer files to or from an FTP site, you must first connect to the site. 1. Open a web browser. 2. Open this URL: www.foobar.com 3. Register in the site, and then view the tutorial videos beginning with “Using WS_FTP Interface to upload files to a web server. [Numbered] Symmetra Overview Page 17 of 28 Symmetra Overview The Symmetra is a high-performance, uninterpretable power array system that is designed for large-scale loads. It provides conditioned, reliable AC power to load equipment, and provides protection from power blackouts, brownouts, swells, sags, surges, and interference. The Symmetra Power Array system is comprised of either a MiniFrame, or a MasterFrame, and a variable set of hot swappable modules. A MiniFrame system can be configured to deliver a maximum output of 8kVA, and a MasterFrame system can deliver a maximum of 16kVA. The computer system that manages the system and provides system notifications, the power processing components, and the batteries themselves are all designed as stand alone modules. If one should fail, it can easily be replaced by an onsite technician without interrupting the flow of power to the datacenter. MiniFrame MasterFrame Page 18 of 28 Chapter 2: WS_FTP and Symmetra Theory of Operation The Symmetra Power Array is comprised of three functional components: A power processing system, a battery source, and a control/user interface system. The relationship of these functional components is illustrated below. Symmetra Overview Power Processing System The power processing system delivers conditioned AC output power with a low distortion sinewave. Under normal operating conditions, power is received from the AC mains (utility) power source, conditioned by the power processing system, and delivered to the load equipment. In the event of an AC mains power source failure, the power processing system receives power from the battery source (battery modules), converts it to conditioned AC, and delivers it to the load equipment. When AC mains power is present, the power processing system also maintains the battery source at full charge. The power processing system in a Symmetra is comprised of one or more power modules. Each power module contains the electronic components for a complete 4kVA UPS, including the rectifier, charger and inverter. When two or more power modules are present, they operate in parallel, sharing the load equally. By configuring the system with at least one more power module than is required to power the load (a redundant power module), Symmetra can sustain a power module failure and still deliver full power to the load equipment. The failed module is identified by the control/user interface system, an alarm is initiated to notify the user of the module failure, and the hot-swappable module can be replaced by the user, without the need to power down the load equipment. A Symmetra MiniFrame provides bays for up to three power modules, and a MasterFrame provides bays for up to five. This provides the full system capacity (8kVA and 16kVA respectively), plus one redundant power module. Battery Source The battery source is comprised of parallel, hot-swappable, 120V battery modules. These are housed in the Symmetra frame, and in an optional XR Extension Battery frame. A Symmetra MiniFrame provides bays for up to two battery modules and a MasterFrame provides bays for up to four. Both of these frames can be connected to an XR Extension Battery frame. Additional battery modules increase onbattery run time. Page 19 of 28 Page 20 of 28 Chapter 2: WS_FTP and Symmetra Control/User Interface The control/user interface system coordinates the operation of the Symmetra and reports status conditions via several user interface options. Functions performed by the control user interface component include module coordination and state control, analysis and reporting of system status, and reporting of alarm conditions. Module Coordinations & State Control - The Symmetra incorporates a main intelligence module (MIM) that continuously monitors the system, and delivers data to both the PowerView user interface, and to the communication ports.The MIM coordinates the initial power up of the system, transfers it into and out of bypass mode, transfers the power source between the mains AC power, and the battery source, and coordinates shutdown operations. System Status Monitoring - The MIM gathers data about the system components and delivers it to both the PowerView interface, and to the computer interface ports. System status monitoring and reporting data include the current predicted run time, the status of individual battery and power modules, the input & output voltage, input & output voltage frequency, and the size and status of the output load. Alarm Condition Detection - The control/user interface system monitors the Symmetra for alarm conditions. If an alarm condition is detected, the PowerView user interface initiates an audible and visual alarm. Alarm conditions include on-battery, low battery, module faults, overloads, loss of redundancy and a variety of other default and user defined events. All possible alarm messages and the appropriate user responses are provided in later chapters. Operating Modes The Power Array functions in one of four operating modes, depending on user commands, the status of the AC mains utility voltage, and the condition of the Symmetra itself. The four modes are Load-Disconnect, On-Line, On-Battery, and Bypass. Each is explained below. The PowerView interface on the Symmetra reports the current operating mode. Operating Modes Page 21 of 28 Load-Disconnect Mode In the load-disconnect mode, incoming mains (utility) power is present and the system is internally powered, but no output power is delivered to the load equipment. The Symmetra enters the load-disconnect mode at the initial power up when the system enable switch is switched to the .on. position. When the system is operating on-line, and the .load off. command is entered in the PowerView interface, it returns to the loaddisconnect mode. The figure below illustrates power flow. Load-Disconnect Mode Page 22 of 28 Chapter 2: WS_FTP and Symmetra Online Operating Mode The on-line operating mode is the .normal. operating mode. When the system is in the on-line operating mode, the Power Array receives AC mains (utility) power and delivers conditioned power to the load equipment. The Power Array maintains proper battery charge, regulates the output voltage and frequency, and protects the load from surges and electrical noise. Symmetra will operate in this mode if it has been set to turn the load on, the incoming utility voltage is present and functioning properly, and there are no abnormal conditions preventing such as an overload. See the illustration below for a diagram of the power flow when the system is in the online operating mode. On-line Operating Mode Operating Modes Page 23 of 28 On-Battery Operating Mode When in the on-battery mode, the Power Array draws DC power from the battery source, converts it to conditioned AC power and delivers it to the load equipment. Symmetra typically enters this mode in the event of a mains (utility) power failure. It will also operate in the on-battery mode during a user initiated battery self test. On-battery operation is limited in duration and is dependent on the number of battery modules, their state of charge, and the size of the load. Symmetra will remain in the on-battery state until either the incoming utility power is restored or the batteries are depleted. See the diagram below to understand the power flow when the system is in the on-battery mode. On-Battery Operating Mode Page 24 of 28 Chapter 2: WS_FTP and Symmetra Bypass Operating Mode When the Symmetra is in the bypass operating mode, the system is bypassed and utility power is delivered directly to the load. Symmetra is equipped with an automatic bypass function. It is automatically activated when AC mains power is present, but the load cannot be powered by the inverter. Events which may cause this include overloads and failed non-redundant power modules. The Symmetra automatically returns to the on-line operating mode when the triggering event clears. A manual maintenance bypass switch at the back of the frame allows a user to manually bypass the system. The illustration below shows power flow when the system is in the bypass mode. Bypass Operating Mode Operating Modes Page 25 of 28 Definitions The following terms are used in this manual. Review these definitions for a better understanding of your new Symmetra system: Term Definition Redundancy Indicates the presence of one or more extra power mod- ules which allow the system to sustain a fault and still provide protection to the load. To be fully redundant, the system should be configured with a redundant intelligence module, and at least one redundant power module. Note: The number of battery modules determines the length of the run time. While it is prudent to use the maximum number of battery modules possible, they are not considered redundant. N+1 Redundancy Refers to the level of power module redundancy. “N” represents the number of power modules required to power the load, and +1, +2, etc.. represents the number of extra power modules that are present. For example, a 7.3 kVA load requires two power modules for adequate protection. If the Symmetra is configured with only two modules, it has an .N+0,. level of redundancy. (No redundancy). If the system is configured with three power modules, it has an .N+1. redundancy. Depending on the size of the load, Symmetra can be configured with 2, 3 or even 4 extra power modules. Respectively, it would have an N+2, N+3, or N+4 level of redundancy. Capacity The maximum amount of output power that a Symmetra system can deliver. The capacity is limited by the lesser of the frame size and the capacity of the installed power modules. As an example, a MiniFrame (8kVA) with one power module installed (4kVA) has a system capacity of 4kVA. A MasterFrame (16kVA) with five power modules (20kVA) has a system capacity of 16kVA. Hot-swappable All of the Symmetra modules are hot-swappable. This means they can be replaced safely by a user or service provider while clean uninterpretable power continues to be delivered to the load. Servicing the module requires no downtime. Your datacenter remains powered and fully protected while the module is being replaced. Page 26 of 28 Chapter 2: WS_FTP and Symmetra Operating Modes Page 27 of 28 Page 28 of 28 Chapter 2: WS_FTP and Symmetra Chapter 3: WS_FTP and Symmetra In This Chapter: • WS_FTP Pro for Windows • Symmetra Overview • Operating Modes WS_FTP Pro for Windows These instructions were written to familiarize nonspecialists and executives with WS_FTP Pro. The following instructions introduce you to WS_FTP Pro, a shareware program that enables you to upload and download files on the Internet, and then shows you how to perform basic tasks. To understand these instructions, you need an Internet account and basic familiarity with Microsoft Windows. Local files Server files Page 30 of 42 Chapter 3: WS_FTP and Symmetra What Is WS_FTP Pro? WS_FTP Pro is a program that allows you to send (upload) and receive (download) files on the Internet. WS_FTP Pro can be used for uploading personal web pages and downloading software. Because FTP (File Transfer Protocol) can handle large files, using the WS_FTP Pro program is also a more reliable way to transfer files than using email attachments. How to Use WS_FTP Pro Click on your Start menu, select Programs, then WS_FTP Pro. The WS_FTP Pro application launches on your system. You will use this to connect to your web server, and drag files from the left screen area that lists files on your local drives (and looks similar to Windows Explorer), to the right area, that shows files on the remote server. How to Connect to an FTP Site. Before you can transfer files to or from an FTP site, you must first connect to the site. 1. Open a web browser. 2. Open this URL: www.foobar.com 3. Register in the site, and then view the tutorial videos beginning with “Using WS_FTP Interface to upload files to a web server. [Numbered] Symmetra Overview Page 31 of 42 Symmetra Overview The Symmetra is a high-performance, uninterpretable power array system that is designed for large-scale loads. It provides conditioned, reliable AC power to load equipment, and provides protection from power blackouts, brownouts, swells, sags, surges, and interference. The Symmetra Power Array system is comprised of either a MiniFrame, or a MasterFrame, and a variable set of hot swappable modules. A MiniFrame system can be configured to deliver a maximum output of 8kVA, and a MasterFrame system can deliver a maximum of 16kVA. The computer system that manages the system and provides system notifications, the power processing components, and the batteries themselves are all designed as stand alone modules. If one should fail, it can easily be replaced by an onsite technician without interrupting the flow of power to the datacenter. MiniFrame MasterFrame Page 32 of 42 Chapter 3: WS_FTP and Symmetra Theory of Operation The Symmetra Power Array is comprised of three functional components: A power processing system, a battery source, and a control/user interface system. The relationship of these functional components is illustrated below. Symmetra Overview Power Processing System The power processing system delivers conditioned AC output power with a low distortion sinewave. Under normal operating conditions, power is received from the AC mains (utility) power source, conditioned by the power processing system, and delivered to the load equipment. In the event of an AC mains power source failure, the power processing system receives power from the battery source (battery modules), converts it to conditioned AC, and delivers it to the load equipment. When AC mains power is present, the power processing system also maintains the battery source at full charge. The power processing system in a Symmetra is comprised of one or more power modules. Each power module contains the electronic components for a complete 4kVA UPS, including the rectifier, charger and inverter. When two or more power modules are present, they operate in parallel, sharing the load equally. By configuring the system with at least one more power module than is required to power the load (a redundant power module), Symmetra can sustain a power module failure and still deliver full power to the load equipment. The failed module is identified by the control/user interface system, an alarm is initiated to notify the user of the module failure, and the hot-swappable module can be replaced by the user, without the need to power down the load equipment. A Symmetra MiniFrame provides bays for up to three power modules, and a MasterFrame provides bays for up to five. This provides the full system capacity (8kVA and 16kVA respectively), plus one redundant power module. Battery Source The battery source is comprised of parallel, hot-swappable, 120V battery modules. These are housed in the Symmetra frame, and in an optional XR Extension Battery frame. A Symmetra MiniFrame provides bays for up to two battery modules and a MasterFrame provides bays for up to four. Both of these frames can be connected to an XR Extension Battery frame. Additional battery modules increase onbattery run time. Page 33 of 42 Page 34 of 42 Chapter 3: WS_FTP and Symmetra Control/User Interface The control/user interface system coordinates the operation of the Symmetra and reports status conditions via several user interface options. Functions performed by the control user interface component include module coordination and state control, analysis and reporting of system status, and reporting of alarm conditions. Module Coordinations & State Control - The Symmetra incorporates a main intelligence module (MIM) that continuously monitors the system, and delivers data to both the PowerView user interface, and to the communication ports.The MIM coordinates the initial power up of the system, transfers it into and out of bypass mode, transfers the power source between the mains AC power, and the battery source, and coordinates shutdown operations. System Status Monitoring - The MIM gathers data about the system components and delivers it to both the PowerView interface, and to the computer interface ports. System status monitoring and reporting data include the current predicted run time, the status of individual battery and power modules, the input & output voltage, input & output voltage frequency, and the size and status of the output load. Alarm Condition Detection - The control/user interface system monitors the Symmetra for alarm conditions. If an alarm condition is detected, the PowerView user interface initiates an audible and visual alarm. Alarm conditions include on-battery, low battery, module faults, overloads, loss of redundancy and a variety of other default and user defined events. All possible alarm messages and the appropriate user responses are provided in later chapters. Operating Modes The Power Array functions in one of four operating modes, depending on user commands, the status of the AC mains utility voltage, and the condition of the Symmetra itself. The four modes are Load-Disconnect, On-Line, On-Battery, and Bypass. Each is explained below. The PowerView interface on the Symmetra reports the current operating mode. Operating Modes Page 35 of 42 Load-Disconnect Mode In the load-disconnect mode, incoming mains (utility) power is present and the system is internally powered, but no output power is delivered to the load equipment. The Symmetra enters the load-disconnect mode at the initial power up when the system enable switch is switched to the .on. position. When the system is operating on-line, and the .load off. command is entered in the PowerView interface, it returns to the loaddisconnect mode. The figure below illustrates power flow. Load-Disconnect Mode Page 36 of 42 Chapter 3: WS_FTP and Symmetra Online Operating Mode The on-line operating mode is the .normal. operating mode. When the system is in the on-line operating mode, the Power Array receives AC mains (utility) power and delivers conditioned power to the load equipment. The Power Array maintains proper battery charge, regulates the output voltage and frequency, and protects the load from surges and electrical noise. Symmetra will operate in this mode if it has been set to turn the load on, the incoming utility voltage is present and functioning properly, and there are no abnormal conditions preventing such as an overload. See the illustration below for a diagram of the power flow when the system is in the online operating mode. On-line Operating Mode Operating Modes Page 37 of 42 On-Battery Operating Mode When in the on-battery mode, the Power Array draws DC power from the battery source, converts it to conditioned AC power and delivers it to the load equipment. Symmetra typically enters this mode in the event of a mains (utility) power failure. It will also operate in the on-battery mode during a user initiated battery self test. On-battery operation is limited in duration and is dependent on the number of battery modules, their state of charge, and the size of the load. Symmetra will remain in the on-battery state until either the incoming utility power is restored or the batteries are depleted. See the diagram below to understand the power flow when the system is in the on-battery mode. On-Battery Operating Mode Page 38 of 42 Chapter 3: WS_FTP and Symmetra Bypass Operating Mode When the Symmetra is in the bypass operating mode, the system is bypassed and utility power is delivered directly to the load. Symmetra is equipped with an automatic bypass function. It is automatically activated when AC mains power is present, but the load cannot be powered by the inverter. Events which may cause this include overloads and failed non-redundant power modules. The Symmetra automatically returns to the on-line operating mode when the triggering event clears. A manual maintenance bypass switch at the back of the frame allows a user to manually bypass the system. The illustration below shows power flow when the system is in the bypass mode. Bypass Operating Mode Operating Modes Page 39 of 42 Definitions The following terms are used in this manual. Review these definitions for a better understanding of your new Symmetra system: Term Definition Redundancy Indicates the presence of one or more extra power mod- ules which allow the system to sustain a fault and still provide protection to the load. To be fully redundant, the system should be configured with a redundant intelligence module, and at least one redundant power module. Note: The number of battery modules determines the length of the run time. While it is prudent to use the maximum number of battery modules possible, they are not considered redundant. N+1 Redundancy Refers to the level of power module redundancy. “N” represents the number of power modules required to power the load, and +1, +2, etc.. represents the number of extra power modules that are present. For example, a 7.3 kVA load requires two power modules for adequate protection. If the Symmetra is configured with only two modules, it has an .N+0,. level of redundancy. (No redundancy). If the system is configured with three power modules, it has an .N+1. redundancy. Depending on the size of the load, Symmetra can be configured with 2, 3 or even 4 extra power modules. Respectively, it would have an N+2, N+3, or N+4 level of redundancy. Capacity The maximum amount of output power that a Symmetra system can deliver. The capacity is limited by the lesser of the frame size and the capacity of the installed power modules. As an example, a MiniFrame (8kVA) with one power module installed (4kVA) has a system capacity of 4kVA. A MasterFrame (16kVA) with five power modules (20kVA) has a system capacity of 16kVA. Hot-swappable All of the Symmetra modules are hot-swappable. This means they can be replaced safely by a user or service provider while clean uninterpretable power continues to be delivered to the load. Servicing the module requires no downtime. Your datacenter remains powered and fully protected while the module is being replaced. Page 40 of 42 Chapter 3: WS_FTP and Symmetra Operating Modes Page 41 of 42 Page 42 of 42 Chapter 3: WS_FTP and Symmetra I INDEX interface 6, 20, 34 L A AC mains 5, 8, 10, 19, 22, 24, 33, 36, 38 alarm condition 6, 20, 34 B battery module 11, 25, 39 battery modules 5, 19, 33 battery source 4, 18, 32 bypass operating mode 10, 24, 38 bypass switch 10, 24, 38 C Load 6, 20, 34 load-disconnect mode 6, 7, 20, 21, 34, 35 M main intelligence module 6, 20, 34 manual maintenance bypass switch 10, 24, 38 MasterFrame 3, 17, 31 MiniFrame 3, 17, 31 module, coordination 6, 20, 34 O on-battery operating mode 6, 9, 20, 23, 34, 37 on-line operating mode 6, 8, 20, 22, 34, 36 operating modes 6, 20, 34 capacity 11, 25, 39 D datacenter 3, 11, 17, 25, 31, 39 P E F power modules 5, 19, 33 power processing system 4, 18, 32 PowerView interface 6, 20, 34 FTP Site 2, 16, 30 R H redundancy 11, 25, 39 electronic components 5, 19, 33 hot-swappable 11, 25, 39 i Index S sinewave 5, 19, 33 state control 6, 20, 34 Symmetra, overview 3, 17, 31 system status monitoring 6, 20, 34 U user interface 4, 18, 32 utility power 7, 21, 35 W WS_FTP Pro 1, 15, 29 WS_FTP, how to use 2, 16, 30 X XR Extension Battery frame 5, 19, 33 ii
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