Troubleshooting checks

There are some checks you can perform to try to identify potential issues with the meter’s operation.

The following table describes potential problems, their possible causes, checks you can perform or possible solutions for each. After referring to this table, if you cannot resolve the problem, contact your local Schneider Electric sales representative for assistance.

  • Apply appropriate Personal Protective Equipment (PPE) and follow safe electrical work practices. See NFPA 70E, CSA Z462 or other local standards.
  • This equipment must be installed and serviced only by qualified personnel.
  • Turn off all power supplying this device and the equipment in which it is installed before working on or in the equipment.
  • Always use a properly rated voltage sensing device to confirm that all power is off.
  • Assume communications and I/O wiring are hazardous live until determined otherwise.
  • Do not use the data from the meter to confirm power is off.
Failure to follow these instructions will result in death or serious injury.
Potential problem Possible cause Possible solution

The maintenance (wrench) icon is illuminated on the power meter display.

When the maintenance (wrench) icon is illuminated, it indicates an event has occurred which may require attention.

Go to Maint > Diag . Event messages display to indicate the reason the icon is illuminated. Note these event messages and call the Technical Support or contact your local sales representative for assistance.

The display is blank after applying control power to the power meter.

The power meter may not be receiving the necessary power.

The display may have timed out. Verify that the power meter line and terminals are receiving the necessary power. Verify that the heartbeat LED is blinking. Press a button to see if the display timed out.

The data being displayed is inaccurate or not what you expect.

  • Incorrect setup values.

  • Incorrect voltage inputs.

  • Power meter is wired improperly

  • Check that the correct values have been entered for power meter setup parameters (CT and VT ratings, Nominal Frequency, and so on).

  • Check power meter voltage input terminals (1, 2, 3, 4) to verify that adequate voltage is present.

  • Check that all CTs and VTs are connected correctly (proper polarity is observed) and that they are energized. Check shorting terminals. See the recommended torque in the Wiring section of the installation manual.

Cannot communicate with power meter from a remote personal computer.

  • Power meter address is incorrect.

  • Power meter baud rate is incorrect.

  • Communications lines are improperly connected.

  • Communications lines are improperly terminated.

  • Incorrect route statement to power meter.

  • Check to see that the power meter is correctly addressed.

  • Verify that the baud rate of the power meter matches the baud rate of all other devices on its communications link.

  • Verify the power meter communications connections.

  • Check to see that a multi-point communications terminator is properly installed.

  • Check the route statement. Contact Global Technical Support for assistance.

Energy/Alarm LED not working.

May have been disabled by user.

Confirm that the energy / alarm LED is configured correctly.

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