The following procedure can be used to exchange an AC power supply unit.

The same procedure can be used to exchange a DC power supply unit, except that you must remove and replace the cable strain relief and observe all of the DC power supply conditions (described earlier).

Overview

Each .edge frame is powered by two power supplies (fitted to the front). Only one PSU is required for operation; the second provides redundancy.

The power supplies are hot-pluggable and so it is possible to replace the redundant unit while the frame is powered.

What you will need

  • No tools are required - as the PSU is unlocked using the release lever.
  • 1 x .edge AC power supply - identical to the other PSU in the frame*.

*It is important that the frame is fitted with two identical power supplies: of the same type and from the same manufacturer. The permitted options are explained in .edge - Power Supplies.

Instructions

Please read the following important safety information and then follow the step-by-step instructions.


(E) WARNING

Please read and observe ALL of the Lawo - Important Safety Instructions BEFORE installing or servicing any component.

(F) AVERTISSEMENT

Veuillez lire et respecter TOUTES les consignes de sécurité importantes AVANT d’installer ou d’entretenir un composant.

(E) CAUTION

For safety reasons and to ensure efficient cooling, both PSU slots must be fitted with a module. The frame must not be operated with an empty slot. If a PSU is faulty, then leave it in the frame (but disconnected) until you are ready to fit the replacement unit.

(F) ATTENTION

Pour des raisons de sécurité et pour assurer un refroidissement efficace, les deux emplacements PSU doivent être équipés d'un module. Le châssis ne doit pas être utilisé avec un emplacement vide. Si un PSU est défectueux, laissez-le dans le châssis (mais déconnecté) jusqu'à ce que vous soyez prêt à installer l'unité de remplacement.

1.    Disconnect the mains power to the supply.

  • For AC power supplies, disconnect and remove the IEC mains cable.
  • For DC power supplies, turn off the DC mains power using the disconnect device. Then remove the feeding wires including the cable strain relief. See Using the DC Power Supplies.

2.    Remove the existing power supply.

  • Press the green release lever (towards the handle) and pull out the unit from the front of the frame.

3.    Check that the replacement unit is of a permitted type.

4.    Fit the new power supply.

  • Take the power supply unit out of its packaging and slide it carefully into the guide rails (at the front of the frame).
  • Secure by pushing in tightly (until the release level clicks into place).

5.    Reconnect the power source and test the operation of the PSUs.

  • For AC power supplies, reconnect the IEC mains cable.
  • For DC power supplies, replace the DC feeding wires and cable strain relief. Then turn on the DC mains power.