43Installation of this unitPower supply installationInstalling the TDK-Lambda DC12 V/24 V power supply unit.Push the power supply unit (PSU) into thepower shelf rack until the lock engages.Use a 1.8 mm (0.07q) width flat-bladescrewdriver or similar tool to turn theadjustment trimmer clockwise until you hear aclick to set the correct voltage.≥ Initially the adjustment trimmer is set to about j13% ofthe correct voltage.Preparing the power sourcePower supply unit(PSU)Power shelf rackPower supply unit lockAdjusting the voltageAdjustment trimmer
