MiCOM P220_P225 RTD Data error alarm

Issue
MiCOM P220 relay displays message “RTD DATA / ERROR” in the HMI along with activation of Warning LED.
The relay registered this alarm in the events log as  Event : MINOR MATERIAL ALARM”.

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Product Line
MiCOM P220-V12.A.

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Environment
Healthy RTD is connected to the device.

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Solution
RTD Data Error means there is a hardware fault on the RTD board or it has not been mounted properly.  Hardware fault can be permanent or intermittent.
Intermittent faults are recoverable faults and these type of faults are managed better in firmware version 12.B which contains improvement (improved RTD driver) in RTD board monitoring. If the RTD board can recover from an intermittent hardware defect and continue to work normally, RTD Data Error will be cleared automatically (the record in events will still be kept).

Please follow below steps to reset the alarm

1. Do a power cycle and see whether the alarm resets.
2. If alarm persists, next step is to upgrade the firmware to 12.C (latest) and see whether the alarm resets.
3. If still alarm persists, return the device to the SE factory for repair, there is genuine hardware failure to be corrected.

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*Warning:  Installation, maintenance, up-gradation, down-gradation of MiCOM device should only be performed by qualified, competent personnel that have appropriate training and experience. Failure to follow the instructions / warnings in the Installation / Operation Guide can result in unwanted disruption to the power system, permanent damage to the device, severe injury or death.*

Publicado para: Schneider Electric España