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  • There is communication failure on N6900.

    April 07, 2020

    1) Please set Communication Protocol to MODBUS on System Configuration, if communicating via LAN port.  

    2) Please confirm Baud Rate on both System Configuration and N6900 application software, if communicating via RS232 interface.

    3) Please confirm ID and Baud Rate on both System Configuration and N6900 application software, if communicating via CAN interface.

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  • Why is N6900 fan speed too high when power-on?

    December 17, 2019


    1) The Ethernet cable was plugged into EXTEND port.


    2) There is OTP warning on the screen. Please calibrate the temperature.



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  • There is no response after pressing On/Off button when N6900 is under CC/CV/CP mode.

    December 17, 2019

    N6900 is under external control. Please restore factory setting and restart N6900.

     

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  • There is OVP warning on the screen. N6900 cannot sink current.

    December 17, 2019

    1) The OVP value is improperly set.  

    2) The input voltage exceeds N6900 rated voltage.

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  • The displayed value is inconsistent with actual value on N6900.

    December 17, 2019

    1) Please set the Operation Mode to High Accuracy on Application Setting. 

    2) Please calibrate the device.

     

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  • The measured voltage on N6900 is not accurate.

    December 17, 2019

    Please employ remote sense.

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  • There is RV warning on N6900 screen.

    December 17, 2019

    The input positive and negative polarities are reversed.

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  • There is Miss warning on N6900 master screen under cascade mode.

    December 17, 2019

    Ethernet cable between the master and the slave is loose. Please fix the cable or change a new cable.

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  • The fan is noisy and running at an abnormal speed.

    December 17, 2019

    Please repair the fan or replace it with a new fan.

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  • There is current display on N6900 when power-on.

    December 17, 2019

    There is short-circuit caused by dust.

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