Viti Emerson R48-2900U 1800A 3500E R48-5800A/E communication power supply rectifier module

Rectifier module R48-2900U function

Input 220V 50Hz, large working range 85~290Vac

L2. Output 42~58Vdc, software adjustable, large output power 2900W

L3. Module software current sharing, with a non-uniformity of less than 3%

L4, CAN bus communication, can connect up to 48 in parallel

L5. It has multiple protection functions such as AC overvoltage/undervoltage, DC overvoltage, over temperature, short circuit, etc

L6. It has LED working status indication and multiple alarm indication functions

L7. Module hot plug, plug and play, without any parameter settings.

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8. Module dual power supply

Characteristics of rectifier module R48-2900U:

1. Input voltage wide range Power limiting: Power derating Input voltage range: 85Vac~176VA

Not working withstand large static voltage: 415Vac

Rated input current: ＜ 16A@2900W

Large input current: ＜ 19A@2900W /176Vac

Input impulse current:<30A

2. Output power limiting, short circuit current limiting

3. Hot plug, adaptive

4. Dual temperature power limiting, over temperature protection

5. DSP software current sharing

Difference between l and average current<± 1.5A

L module internal processor DSP current sharing control

– Average current mode

– Constant voltage control

– Module autonomous control

– Module failure does not affect current sharing

– Non current sharing alarm

Yellow indicator: current sharing error exceeds 8A

• Red indicator: No output or error exceeding 10A

Large enough to be connected in parallel with 48

L No current sharing line required

Use the CAN bus to ensure that all modules communicate normally

6. Overvoltage shutdown, automatic restart

Hardware overvoltage protection:

– 59.5V。 Manual startup is required.

Software overvoltage protection

– Monitoring setting: 56-59V

There are two software overvoltage protection modes that can be selected through background maintenance software:

A. Primary overvoltage lock mode

When the output reaches the software protection point, the module shuts down and maintains, requiring manual intervention before resuming operation;

B. Secondary overvoltage lockup mode

When the output reaches the software protection point and the output current is greater than 5A, the module restarts after shutting down for 5 seconds. If a second overvoltage occurs within the set time (the default is 5 minutes, which can be set), the module shuts down and remains, requiring manual intervention before starting up.

If the output current of the rectifier module is less than 5A (10% of the rated output), the rectifier module does not shut down.

Manual intervention method: reset the rectifier module by monitoring the module or detach the rectifier module from the power system.

7. Current slow start

The above is the product introduction of Emerson R48-2900 communication power supply.