Emerson-liebert nxa 40kva ups user manual

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It enables the critical load to be powered from the utility bypass supply while the UPS is shut down for routine maintenance. Battery contactor or circuit breaker not responding to control signals. The parallel system configuration is achieved through settings in configuration software or panel buttons.

Output becomes inhabited because of Isolation Status. The UPS is fitted with casters. The UPS model, capacity and main parameters are marked on the label. RS232-2 provides serial data and is intended for use by authorized commissioning and service person- nel. Air inlet grille 2. Alternatively, the device must monitor the protective earth current of the system.

Ensure that the UPS weight does not exceed the capacity of the lifting equipment. The intelligent parallel logic provides the user with maximum flexibility. The periodic interval can be set from 30 to 360 days.

Emerson Liebert NX 400V User Manual - Inverter turned off due to low battery voltage. If it is too distorted, ask the customer to verify and seek any possible measurements.

Battery capacity is increased by 1% for every 1°C 2°F increase in temperature up to 25°C 77°F. Battery life is reduced at temperatures above 25°C 77°F. When batteries are mounted in the same room as the UPS unit, it is the battery that dictates the designed maximum ambient temperature, not the UPS. Temperature deviations are permissible for short periods, provided the average temperature does not exceed 25°C 77°F. These are the same height and depth as the UPS module and provide a matching appearance when bolted together. All cabinets are fitted with doors, which must be fully opened in order to fit or remove the batteries. The door swing must therefore be taken into consideration when planning the positioning of the cabinets. When designing the battery installation the weight of the batteries and cables must be added to the unladen weight. This is particularly important when placing the NX on a raised floor. Table 8 Dimensions and weight Rated Cabinet Weight Rated Service Uninterrupted External Cabinet Without Batteries, Model UPS Ratings Current In Current IU WxDxH, mm in kg lb 30kVA Narrow 40kVA 125A 160A 828x825x1600 200 441 Cabinet 60kVA 200A 250A 32. External battery banks connected to such models generally are protected by a standard battery circuit breaker with status contacts and without undervoltage trip coil. When no internal contactor for automatic disconnection is installed in the UPS module, the external battery disconnection is performed by fitting a Circuit Breaker Controller Board and an undervoltage coil to the battery circuit breaker. WARNING Ensure any lifting equipment used in moving the cabinet has sufficient lifting capacity. Ensure that the weight is within the designated surface weight loading of any handling equipment. See Table 8 for weight details. Battery cabinets can be handled by means of a fork lift or similar equipment. NOTE Care must be taken when maneuvering units fitted with batteries. Keep such moves to a minimum. When the equipment has been finally positioned ensure the adjustable feet are set so that the battery cabinet will remain stationary and stable. Cable entry is made possible by removing a blanking piece fitted at the bottom to reveal the cable entry hole.