Lab.gruppen PLM series Quick Start Manual

Also see for PLM Series: Operation manual Operation manual Network configuration guide Quick start guide Operation manual

Lab.gruppen PLM series Quick Start Manual Manual pdf 13 page image

Installation7PLM Series Quick Start and Field Reference Guide Rev 1.3.5The PLM uses primary switching, which means the mains power is rectified on the primary side of thetransformer. This makes the power supply insensitive to mains frequency variation, and it will operatenormally on line frequencies from 45 to 75 Hz.If the mains plug (AC plug) fitted to the mains cable (AC cord) is not appropriate for your country, it can beremoved and a locally-sourced one fitted instead, observing the color coding in the table below:powerCON Pin 230 V Version 115 V VersionL Brown BlackN Blue WhiteGreen/Yellow GreenTable 3-1: AC Plug ConfigurationIf you are not 100% confident of your competence to replace the mains plug (AC plug), the task shouldbe carried out by qualified personnel.Once a suitable AC power supply is connected, the device can be turned on using the front panel powerbutton. When the device is turned on, the power button LED changes from red (Standby) to green (Active).In-rush current is controlled and limited during thesoft-start sequence. This enables multiple PLMs onthe same AC mains circuit to be turned on simulta-neously.3.5 GroundingAnalog inputs feature Iso-Float™ ground isolation, a technology which combines the benefits of transformer-coupled isolation with the advantages of clean, direct-coupled inputs.The audio converters are galvanically isolated, and not connected to mains ground. High-speed transformersand opto-isolators create a barrier between the device and the outside electrical environment.The Iso-Float feature is activated by default, but maybe disabled via the Lake Controller software, or viathe front panel menu.Use correctly-shielded balanced audio input connections to minimise hum and interference. Please refer tosection 7.1.5 of the PLM Series Operation Manual for further information.NEVER disconnect the earth (ground) pin on the mains cable (AC power cord).