Liebert Series Uninterruptible Power System (UPS) for the Single Module The Series UPS has been designed for Commercial/Industrial use only. Single Phase UPS system S i n g l e m o d u l e a n d ‘1 + N’ (e x p a n d a b l e) UNINTERRUPTIBLEPOWERSYSTEM User Manual EMERSON Network Power. Single phase ups system • Read online or download PDF • Emerson User Manual.

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Liebert – Emerson Series Ups System – Energetic Sales & Services, Dehradun | ID:

When connected together, the battery terminal voltage will exceed Vdc and is potentially lethal. Once such a generator has been brought on-line, and the UPS input power has been re-established, the batteries immediately begin to recharge.

In such an event the load is transferred to an unprocessed bypass supply as described later. For detailed info visit us at www. Side entry is made possible by removing blanking pieces fitted in the side ventilation grills to reveal the cable entry holes.

Emerson 7400 User Manual

Parallel control in a one-plus-one system Battery charge current sharing: As the outputs from both UPS modules are connected together to provide a single load supply, it is imperative that the inverters are fully emeron both in frequency and phase. The RAM is required to be mounted vertically. The installation diagrams in the back of this manual identifies the location of the holes in the base plate through which the equipment can be bolted to the floor.

Inverter will not turn ON unless output isolator is closed. The audible warning can be cancelled by the reset switch S5 but LS7 will only extinguish after the alarmed condition has reverted to normal. Measure and record the UPS output line currents. This chapter contains information regarding the positioning and cabling of the one-plus-one UPS equipment and batteries.

Recondition Emerson Online UPS, Model No.: M, Rs /unit | ID:

When using mains-powered test equipment such as oscilloscopes in the UPS high voltage area, always use a differential mode of operation to avoid the need to disconnect the oscilloscope frame earth. This equipment must be earthed in accordance with local electrical codes. Note that LS5 will extinguish when LS6 illuminates. Measure and record the battery float charge voltage. The following information aims to provide a trained user with sufficient knowledge to understand the nature of a fault through the correct interpretation of the accompanying alarms and indications, and to carry out any necessary first aid repair.

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If possible, log the results of the inspection, noting any discrepancies from the norm. This indication should be mutually exclusive with LS6 described below – check out LS6 actions.

Cooling air flow All the models in the range are forced-cooled with the aid of internal fans. Critical load power is maintained under these conditions until the battery is fully discharged, whereupon the UPS shuts down.

For the 50 to kVA 1PH models the power cables are connected either directly to their respective circuit breakers or to busbars, which are themselves, connected to the circuit breakers.

If the batteries are cabinet-mounted this circuit breaker is fitted within the cabinet; however, if the batteries are rack-mounted or otherwise located remote to the main UPS cabinet then the battery circuit breaker must be mounted as near as possible to the batteries themselves, and the power and control cables connected to the UPS using the most direct route possible. Page of 86 Go. This led illuminates when the output isolator is closed and the load is connected to the bypass via the static switch.

The series UPS incorporates an optional automatic boost charge facility which can be used in systems containing non-sealed lead-acid batteries.

See the UPS specification for weight details. Ensure removal of z-type clamps used for fixing PCB door. No space required 77400m situated on a raised floor.

Power is applied through a standard two-pin mains connector located at the backside of the RAM. This should be undertaken after the equipment has been shut down only by a trained electrician who is familiar with the layout and operation of the emersom and fully conversant with the areas of potential hazard.

USF, 24 core, 1. There are two possible ways to connect each module to battery: Further internal safety screens make the equipment protected to IP20 standards. Press the battery metering selector switch [B] S4. In the event of a mains power failure, the rectifier becomes inoperative and the inverter is powered solely from the battery. When this switch is pressed, the lower line of the LCD Display shows the output phase voltage w.


Thoroughly clean inside of the equipment enclosure using a vacuum cleaner and low pressure air to remove any foreign debris. LS5 should extinguish at the same time as LS6 illuminates. The risk of contact with these voltages is minimised as the live component parts are housed behind a hinged, lockable door.

If these are significantly different from the values previously logged then, if possible, record the size, type and location of any additional load connected to the UPS supply since the previous inspection. Open the Output Isolator on both modules. Related searches emerson d emerson d kva emerson d kva online emerson power emerson power bank emerson power bank ups emerson gxt mt emerson online emerson online ups series i3 gen series high series ii series hp series set series premium series poetry series dvr series map series laptop c2d series note.

Page 24 Page 25 Page 26 – Procedure for completely powering down t When two or more alarm or warning conditions are active simultaneously, the appropriate messages are displayed in a cyclic fashion, with each message appearing on the display for approximately for 10 seconds.

There are total 9 alarms provided on the RAM. The battery not available indicator 4 will light amber and the battery bar graph LED’s will all extinguish. Information concerning prevailing load conditions can 740m useful when discussing problems with the service agent – for example, details of any particular load being started or shed at the time that the fault occurred.

Enter an email to continue. When using the above contacts for remote alarm annuciation, the power supply for the remote indicators must be provided from an external power source.

However, it is advisable to provide spare cores and hence we recommend use of core cable. The UPS has its own internal voltage and frequency regulator circuits which ensure that its output is maintained within close tolerances independent of voltage and frequency variations on the mains power lines.