Installation and Quick Start Rack Automatic Transfer Switch (ATS) AP4421, AP4422, AP4423, AP4424, AP4430, AP4431, AP4432, AP4433, AP4434, AP4450, AP4452, AP4452J, AP4453 990-5852B-001 Publication Date: 12/2017 Au ati Transtom fer Swc itch Network by Schneider E l e c t r i c - OK - Warning - Overload 10/100 USB Reset Serial pdu0393c Au ati Transtom fer Swc itch Network USB Reset Serial by Schneider E l e c t r i c - OK - Warning - Overload 10/100
APC by Schneider Electric Legal Disclaimer The information presented in this manual is not warranted by APC by Schneider Electric to be authoritative, error free, or complete. This publication is not meant to be a substitute for a detailed operational and site specific development plan. Therefore, APC by Schneider Electric assumes no liability for damages, violations of codes, improper installation, system failures, or any other problems that could arise based on the use of this Publication.
Contents Important Safety Information.................................................................... 1 Preliminary Information............................................................................. 2 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Available Power Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Additional Documentation . . . . . . . . . . . . . . . . . . . . . . . . . .
Command Line Interface: Telnet and SSH. . . . . . . . . . . . . . . . . . . . . . . . . .15 Telnet for basic access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 SSH for high-security access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 SNMP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 SNMPv1 only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 SNMPv3 . .
Important Safety Information Read the instructions carefully to become familiar with the equipment before trying to install, operate, service, or maintain it. The following special messages may appear throughout this manual or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure.
Preliminary Information The APC by Schneider Electric Rack Automatic Transfer Switch (ATS) provides reliable, redundant power to single-corded equipment loads, such as servers. The Rack ATS has two input power cords supplying power to the connected loads from both a primary and secondary power source. If the primary source becomes unavailable or goes out of the configured power range, the Rack ATS will seamlessly switch to draw power from the secondary source without interrupting critical loads.
Receiving Inspection Inspect the package and contents for shipping damage, and make sure that all parts were sent. Report any shipping damage immediately to the shipping agent, and report missing contents, damage, or other problems immediately to APC by Schneider Electric or your APC by Schneider Electric reseller. Please Recycle The shipping materials are recyclable. Please save them for later use, or dispose of them appropriately. User Comments We welcome your comments about this document. Contact www.
Product Inventory Au ati Transtom fer Swc itch Network by Schneider E l e c t r i c - OK - Warning - Overload 10/100 USB Reset Serial Au ati Transtom fer Swc itch Network USB Reset by Schneider E l e c t r i c - OK - Warning - Overload 10/100 pdu0393b Serial 1 Rack Automatic Transfer Switch (1 U or 2 U) 2 Serial Communication cable, RJ12 to female DB-9 3 Screw 4 Cage nut 5 Clip-on retainer 6 1-U rack-mount bracket kit (provided with 1-U Rack ATS) 7 2-U rack-mount bracket kit (pr
Front Panel Overview Network Preference x 10 /100 USB Reset A/B B Serial pdu0733b - OK - Warnin g - Ove rload Automatic Transfer Switch NOTE: Your Rack ATS is configured so the display backlight turns off after 10 minutes of inactivity. Press any display navigation button to illuminate the backlight.
Load Status LED This LED identifies overload and warning conditions for the ATS. To configure warning thresholds, see the User Manual on www.apc.com. Condition Description Green The Rack ATS current is below the Near Overload Warning threshold. Yellow The Rack ATS current is above the Near Overload Warning threshold. Red The Rack ATS current is above the Overload Alarm threshold. Network Status LED This LED indicates the network status.
Installation DANGER HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH • High leakage current from attached loads is possible. If total leakage current will exceed 3.5mA, attach a ground wire from the Rack ATS supplementary ground (M4 thread) to a reliable ground in your facility before energizing the Rack ATS. • Do not operate the Rack ATS with the covers removed. • No user-serviceable parts inside. Refer servicing to qualified personnel.
Mounting Options You can mount the Rack ATS in an APC by Schneider Electric NetShelter® or other EIA-310-D standard 483 mm (19-in.) rack. Horizontal mounting 1. Choose a mounting position for the Rack ATS with either the digital display or the rear panel facing out of the enclosure. pdu0352a 2. Attach the mounting brackets to the Rack ATS using the provided flat-head screws. 3. Choose a location for the unit.The unit occupies one or two U-spaces.
Connect the ATS NOTICE • Do not plug an ATS into a generator without the protection of a Double Conversion On-Line Uninterruptible Power Supply (UPS). • ATS models are compatible with only a Double Conversion On-Line UPS and not a Line Interactive UPS. (See White Paper 1 on www.apc.com for more information.) Plug the ATS into two power sources that are independent of each other.
Quick Configuration NOTE: Disregard the procedures in this section if you have APC by Schneider Electric StruxureWare as part of your system. See the StruxureWare documentation on www.apc.com for more information. You must configure the following TCP/IP settings before the Rack ATS can operate on a network: • IP address of the Rack ATS • Subnet mask • Default gateway (See the User Manual on www.apc.com for more information about the watchdog role of the default gateway.
DHCP and BOOTP configuration In the web interface, the TCP/IP options are defined under the Configuration tab, in the Network menu. The possible settings are Manual, BOOTP, and DHCP (the default setting). The default TCP/IP configuration setting, DHCP, assumes that a properly configured DHCP server is available to provide TCP/IP settings to the Rack ATS. You can also configure the setting for BOOTP. A user configuration (INI) file can function as a BOOTP or DHCP boot file.
Local access to the command line interface (CLI) You can use a local computer to connect to the ATS and access the CLI. 1. Select a serial port at the local computer and disable any service that uses that port. 2. Use the communication cable to connect the selected port to the serial port on the front panel of the ATS. 3. Run a terminal program (such as HyperTerminal) and configure the selected port for 9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control. Save the changes. 4.
Configure TCP/IP settings in the CLI 1. Log on to the CLI. See “Local access to the command line interface (CLI)” on page 12 or “Remote access to the CLI” on page 12. 2. Contact your network administrator to obtain the IP address (if needed), subnet mask, and default gateway for the Rack ATS. 3. Use these three commands to configure network settings. (Text in italics indicates a variable.
How to Access the Rack ATS Interfaces After the Rack ATS is running on your network, you can use the interfaces summarized here to access the unit. For more information on the interfaces, see the User Manual at www.apc.com. Web Interface To access the web interface on Windows operating systems, use Microsoft Internet Explorer (IE) 8.x or higher (with compatibility view turned on), or the latest release of Microsoft Edge.
Command Line Interface: Telnet and SSH To access the command line interface, you can use either a local (serial) connection or a remote (Telnet or SSHv2, depending on which is enabled) connection with a computer on the same network as the Rack ATS. A Super User or Administrator can enable these access methods. Telnet is enabled by default. Telnet for basic access Telnet provides the basic security of authentication by user name and password, but not the highsecurity benefits of encryption.
SNMPv1 and SNMPv3 To use StruxureWare to manage the Rack ATS on the public network of a StruxureWare system, you must have SNMPv1 enabled in the unit interface. Read access allows StruxureWare devices to receive traps from the Rack ATS. Write access is required while you set the StruxureWare device as a trap receiver. To enable or disable SNMP access, you must be an Administrator or Super User. In the web interface, click Configuration, click Network, click either SNMPv1 or SNMPv3, and then click Access.
How to Configure the Rack ATS Configure Sensitivity The sensitivity setting controls how tolerant the Rack ATS is of fluctuations in power before it switches to the secondary power source. When sensitivity is set to Low, the Rack ATS waits 4 milliseconds (ms) before switching to the alternate power source when there is a disturbance in the power supply. The Low setting can prevent excessive switching if your source voltage has excessive or frequent fluctuation.
Configure Voltage Transfer Range The voltage transfer range determines the switching behavior for the Rack ATS based on source voltage. When the source voltage moves outside the specified range, the Rack ATS switches to the secondary power source. You can configure Narrow, Medium, or Wide voltage ranges and then set the ATS to the desired range. The Rack ATS can be set to Narrow, Medium, or Wide voltage ranges, depending on the power conditions of your system. The default setting is Wide.
Configure voltage transfer range through the web interface 1. Click Configuration, click ATS, and then click Frequency/Voltage. 2. Type the Line VRMS and desired Wide, Medium, and Narrow ranges into the appropriate fields. 3. Under Voltage Transfer Range, click Wide, Medium, or Narrow. 4. Click Apply to save or Cancel to leave the page without saving.
Recovering from a Lost Password You can use a local computer (a computer that connects to the Rack ATS through the serial port) to access the command line interface to reset the user name and password: 1. Select a serial port at the local computer, and disable any service that uses that port. 2. Connect the serial communication cable (APC by Schneider Electric part number 940-0144A) to the selected port on the computer and to the Serial port on the Rack ATS. 3.
Two-Year Factory Warranty This warranty applies only to the products you purchase for your use in accordance with this manual. Terms of Warranty APC by Schneider Electric warrants its products to be free from defects in materials and workmanship for a period of two years from the date of purchase. APC by Schneider Electric will repair or replace defective products covered by this warranty.
NO SALESMAN, EMPLOYEE OR AGENT OF APC BY SCHNEIDER ELECTRIC IS AUTHORIZED TO ADD TO OR VARY THE TERMS OF THIS WARRANTY. WARRANTY TERMS MAY BE MODIFIED, IF AT ALL, ONLY IN WRITING SIGNED BY AN APC BY SCHNEIDER ELECTRIC OFFICER AND LEGAL DEPARTMENT. Warranty Claims Customers with warranty claims issues may access the APC by Schneider Electric customer support network through the Support page of the APC by Schneider Electric website, www.apc.com/support.
Life-support Policy General policy APC by Schneider Electric does not recommend the use of any of its products in the following situations: • In life-support applications where failure or malfunction of the APC by Schneider Electric product can be reasonably expected to cause failure of the life-support device or to affect significantly its safety or effectiveness. • In direct patient care.
Radio Frequency Interference Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the users authority to operate this equipment. USA.FCC This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Worldwide Customer Support Customer support for this or any other product is available at www.apc.com © 2017 APC by Schneider Electric. APC, PowerNet, NetShelter, and StruxureWare are trademarks owned by Schneider Electric, S.A.S. All other trademarks are property of their respective owners.
