SmartSwitch. Adhere to all operating instructions and warnings on the unit and in this manual. Liebert Corporation neither recommends nor knowingly sells this product for use with life support or other FDA-designated “critical” devices. The SmartSwitch is suitable for indoor use only. Protect unit from excessive moisture and install in an area free from flammable liquids, gases, or corrosive substances.
The SmartSwitch consists of two modules, a fixed module containing the input and output connec- tions and bypass switch with a compartment that holds the plug-in and removable electronics/ switching module. Figure 1 shows a typical one-line schematic diagram of the SmartSwitch.
• 50 Hz units are CE marked for compliance with the EMC and Low Voltage Directives. • Redundant Control Power Supplies. • Integral Maintenance Bypass. • Eight Isolated Normally Open, Form A Switch Status Contacts. • RS-232 Communications Port • Hot-Swap, Plug-In Electronics Module.
24 hours and contact your local Liebert representative or Liebert Customer Service and Support at 1-800-543-2378 to inform them of the damage claim and the condition of the equipment.
Input and Output Power Connections All wiring should be installed by a qualified electrician. All wiring must comply with NEC and applicable local codes. WARNING RISK OF ELECTRICAL SHOCK. HAZARDOUS VOLTAGES ARE PRESENT INSIDE THE SMARTSWITCH. VERIFY THAT THE ALL INPUT POWER SOURCES ARE DE-ENERGIZED AND LOCKED OUT BEFORE MAKING CONNECTIONS INSIDE THE UNIT.
If the unit is furnished with input power cables, the input power connections are made to the receptacles matching the input power plugs furnished located in close proximity to the Smart- Switch (typically within 3 feet). The input power connections to the SmartSwitch must include overcurrent protection included as part of the supply power distribution system.
Figure 4 shows the typical input and output power connections to the SmartSwitch. The Smart- Switch can accept up to 3 phase conductors, a neutral conductor and an equipment grounding con- ductor per input and output to match the specified supply voltage configuration. See the unit ratings table (Table 1) for the required number of phase and neutral conductors required for the particular SmartSwitch used.
The SmartSwitch includes relay output contacts and RS-232 communications port for remote indication of switch status. Figure 2 and Figure 3 show the typical locations of the control con- nectors. Figure 5 shows the typical control connections. Refer to 3.3 - RS-232 Communications Port for RS-232 communication port description.
The SmartSwitch™ consists of two modules, a fixed module containing the input and output con- nections and bypass/transfer control switch, and a plug-in, removable electronics/switching mod- ule. The bypass/transfer control switch is located behind a keylocked, hinged access cover to restrict access to qualified or designated operators. The plug-in module likewise contains key- locked latches to prevent unauthorized removal of the module.
Inquiries include viewing unit status, viewing event history log, and viewing settings. Typi- cal inquiry responses are shown in Table 4, Table 5, and Table 6. The Event Log contains the last 175 switch events. The Settings Log contains the last 50 switch settings changes.
Peak Overload Peak Overload Gone Transfer Inhibit OK to Transfer Power Supply Fault Power Supply OK Switch in Normal Mode Manual Transfer to S1 Manual Transfer to S2 Bypass to S1 Bypass to S2 Transferred to Alternate Transferred to Preferred...
SmartSwitch to transfer the load to source 1. The Smart- Switch will transfer the load to source 1 if source 1 is available and synchronized to source 2. The SmartSwitch will automatically delay transfer to source 1 until source 1 is available and within the preset phase synchronization window.
1 is available and the load is connected to source 1 before rotating the Bypass/ Transfer Control switch to “Bypass To S1” position. If source 1 is not available and the load is not connected to source 1 before the switch is rotated to the “Bypass To S1” position, power to the load may be interrupted.
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Transfer Control switch to “Bypass To S2” position. If source 2 is not available and the load is not connected to source 2 before the switch is rotated to the “Bypass To S2” position, power to the load may be interrupted. If the load is connected to source 1 and the SmartSwitch will not transfer the load to source 2, initiate a bypass to source 1.
Even the most reliable equipment can fail. For information or repair assistance, contact your local Liebert representative or Liebert Global Services. To contact Liebert Global Services in the U.S., call 1-800-LIEBERT.
Worldwide FAX The Company Behind The Products With more than 500,000 installations around the globe, Liebert is the world leader in computer protection systems. Since its founding in 1965, Liebert has developed a complete range of support and protection systems for sensitive electronics: •...
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