Tripp Lite S3M60K60K6T Owners Manual S3M 3-Phase UPS Systems for Models S3M25- - Page 41

4. Operation 4.1.3 Bypass Mode If the inverter is out of order, or if overload occurs, the static transfer switch will activate to transfer the load from the inverter supply to bypass supply without interruption to the critical load. In the event the inverter output is not synchronized with the bypass AC source, the static switch will perform a transfer of the load from the inverter to the bypass with power interruption to the critical AC load. This is to avoid paralleling of unsynchronized AC sources. This interruption is programmable but typically set to be less than an electrical cycle, e.g. less than 15 ms (50 Hz) or less than 13.33 ms (60 Hz). SINGLE INPUT: Mains Input DUAL INPUT: Mains Input and Bypass Input Maintenance Breaker Maintenance Breaker Bypass Breaker Static Bypass AC Input Input Breaker Rectifier Inverter Output Output Breaker Bypass Input Bypass Breaker Static Bypass AC Input Input Breaker Rectifier Output Output Breaker Inverter Battery Input Battery Breaker Bypass Mode Battery Input Battery Breaker Bypass Mode Figure 4-3: Bypass Mode 4.1.4 ECO Mode When the UPS is at AC Mode and the requirement to the load is not critical, the UPS can be set at ECO mode in order to increase the efficiency of the power supplied. At ECO mode, the UPS works at Line-Interactive mode, so the UPS will transfer to bypass supply. When the AC is out of set window, the UPS will transfer from bypass to Inverter and supplies power from the battery, and then the LCD shows all related information on the screen. The UPS will default to ECO Mode after powering up. SINGLE INPUT: Mains Input DUAL INPUT: Mains Input and Bypass Input Maintenance Bypass Breaker Bypass Breaker Static Bypass AC Input Input Breaker Rectifier Inverter Battery Input Battery Breaker Bypass Input Output Output Breaker Mains Input Bypass Breaker Static Bypass Rectifier Inverter Battery Input Battery Breaker Output Output Breaker Figure 4-4: ECO Mode 41