Emerson DC Power Charging Module ER11020/T Emerson

Major Functions of ER22010/T(ER11020/T Emerson)

1. Protection
1) Input over/under-vOLTage protection
The rectifiers are capable of over/under-voltage protection. When the input voltage is smaller than the set under-voltage or bigger than the over-voltage, the rectifier will be shut down for protection. There will be no DC output, and the protection indicator (yellow) will turn on. The rectifier will return to normal operation when the voltage returns normal.
2) Output over-voltage protection & under-voltage alarm
The rectifiers are capable of output over-voltage protection and under-voltage alarm. When the output voltage is higher than the preset over-voltage, the rectifier will shut down, with no output, and the alarm indicator (red) will turn on. The rectifier cannot be auto-reset. You need to power it off and on to reset it.
When the output voltage is lower than the preset under-voltage, the alarm will be raised, but the rectifier will keep its output, and the protection indicator (yellow) will turn on. This alarm will be cleared once the voltage restores to normal.
3) Short circuit foldback of output
The rectifiers are capable of limiting output upon short circuit, during which the output current will be limited to 40% of rated output current. The output will restore to normal after the short is removed.
4) Phase failure protection
The rectifiers are capable of phase failure protection. Upon input phase failures, the rectifiers will derate and output half power. The output current is 5A at the output voltage of 260V.
5) Over-temperature protection
The over-temperature protection will be triggered when the temperature is higher than the set point, either due to too high ambient temperature, or because rectifier air inlet is blocked. The Protection Indicator (yellow) on the rectifier front panel will turn on, and there will be no output. This protection can be reset automatically when abnormality is cleared and rectifier internal temperature restores to normal.
6) Front-end over-current protection
This protection will be triggered upon over-current at the rectifier’s rectification part. It cannot be reset automatically. To reset it, you need to power it off and on.
2. Other functions
1) Fan speed control
There are 3 classes of fan speed: stop, half-speed and full speed, determined by taking both temperature and output current into consideration.
2) Fault display
Upon rectifier faults, the alarm information will real-time flash on LED in the form of fault code. You can switch the display content to voltage by pressing the A/V button (current/voltage display switching button).
3) Communication function
The rectifier can communicate with the host through RS485 port. It can report to the host its output voltage, current, protection and alarm information, as well as receive and execute control orders from the host. See the following table for details.

Specifications