Maintenance

NOTICE
EQUIPMENT DAMAGE Regular maintenance work must be performed. All maintenance tasks must be performed only by qualified personnel. Failure to follow these instructions can result in equipment damage and render the warranty null and void.

Schneider Electric offers a basic maintenance service of the equipment, in order to have a prolonged life of the PowerLogic™ DVR system.

To help to assure the correct operation of the PowerLogic™ DVR system, it is necessary to perform several maintenance tasks. These tasks can help to resolve any detected problems before the breakdown occurs and to make sure that the active and passive safety devices are operating correctly.

The frequency of maintenance tasks depends upon the location and atmospheric conditions. The air quality factors such as temperature and dust has a great influence on the amount of maintenance work. The maintenance work is done in order to maintain the functionalities of the equipment within an acceptable level of uncertainty. For example, if the air contains a greater amount of dust in suspension, the maintenance work must be carried out more frequently than the standard frequency indicated.

The recommended maintenance tasks in accordance with the standard frequency are listed as follows:

• Monthly:

  • Visual control of correct operation

    • Values within margins

    • No active event

  • Control of the event history, in search of sporadic or repetitive detected failures

• Biannual:

  • Check on the correct ventilation of the location.

  • Clean the air inlet filters of the equipment.

  • Remove the foreign bodies from the air inlet and outlet.

  • Visually verify for loose connecting wires, rusting, damage to insulation, and so on.

• Annual:

  • Perform complete controlled shutdown of the equipment.

  • Disconnect the external AC protections of the unit (switches, magnetothermal switches, and so on).

  • Verify the connection status of the AC input and output grid of the equipment.

    • Visual check

    • Retightening of connections

  • Replace the anti-particle filters of all cabinets by Venfilter brand with VSB-150 reference or similar.

  • Examine the operation of the fans and thermostat activation.

  • Check for the screw tightness and cabling (possible effect of rodents or similar).

  • Examine and vacuum-clean the internal elements:

    • Static bypass module

    • Pre-charging module

    • Rectifier module

    • Inverter module

    • Transformer

    • Remaining electronic elements, power sources, and so on

  • Check for the tightening and good condition of the power and signal cables.

  • Check for the color changes or deformations due to hot spots.

  • Clean the room where the system is located and check if there is water filtration.

  • Check for the performance of the switches and contactors.

  • Connect the external AC protections of the equipment (switches, thermal magnets, and so on) and perform complete controlled start-up of the equipment.