The LP Series UPS is a true on-line double conversion, intelligent and heavy-duty UPS for centralized power protection. The continuous operation technology with isolated bypass provides the highest reliability against utility disturbances under the toughest conditions. The LP UPS is easy to install and service. It can be integrated into any office or industrial environment.

Thanks to RPA™ (Redundant Parallel Architecture™) the system power can be expanded by paralleling units or the system reliability can be increased by adding redundant units. The LP 11U are single phase UPS for 208/230/240 Volt in, the LP 11U/120 models are for 120 Volt 1-phase in. All models have outputs for 120V, 208 and 230/240 Volt single phase.

Features

• Isolation transformer | The output of the output converter can be galvanically isolated from the utility. The neutral of the UPS output is internally connected to the input neutral. The output is totally isolated if the bypass circuit breaker is disconnected
• Bypass enable/disable | If you do not want the automatic bypass switch to transfer to bypass, e.g. in situations of very bad or unstable utility, the bypass switch can be disabled. This feature is essential if the UPS is used as a frequency converter
• Frequency tracking range | The output frequency will follow the bypass frequency within the frequency tracking range (standard ± 2%). If the bypass frequency is outside these limits, the inverter will run on its internal oscillator, and bypass transfer is inhibited. If you want the bypass switch to operate over a wider frequency range (e.g. in case of generator supply), the tracking range can be changed into ± 4% or ± 6%
• ECO-Mode | The LP UPS is equipped with the ECO-Mode feature. If the feature is enabled, the load is operated on utility through the electronic bypass switch. If the utility is interrupted or out of limits the load is automatically transferred to the inverter. Operating the load on utility improves the efficiency of the UPS and saves on energy costs. As the unit produces less heat in ECO-Mode, also the energy costs of an airco installation will be reduced. We advise not to use the ECO-Mode in case of an unstable utility
• Communications port | 9-pin Sub-D female plug (RS232/contact interface)
• Auto restart | If this feature is enabled and the unit has shut down (e.g. due to overload) the UPS will start up automatically when the normal situation is restored. The factory setting is: enabled. If the auto restart feature is disabled the unit will not automatically restart when the normal situation is restored
• Service warning | The LP UPS can generate a service warning periodically. The period can be set to 28, 24, 20, 16, 12 or 8 months. Default the service warning is disabled
• Event logging | The LP UPS stores the 200 last events in its memory. The service engineer can use this information for quick and accurate diagnostics. The event list contains all events like alarms, error and status messages