Vega VEGAPULS 61 Operating Instructions Manual

Also see for VEGAPULS 61: Operating instructions Quick setup guide Operating instructions Operating instructions Quick setup guide

Contents

Vega VEGAPULS 61 Operating Instructions Manual Manual pdf 28 page image

285 Connecting to the bus systemVEGAPULS 61 • Foundation Fieldbus41716-EN-160224on the housing must be connected to the potential equalisation (lowimpedance).In systems without potential equalisation with cable screening onboth sides, connect the cable screen directly to ground potential atthe power supply unit and at the sensor. In the connection box orT-distributor, the screen of the short stub to the sensor must not beconnected to ground potential or to another cable screen. The cablescreens to the power supply unit and to the next distributor must beconnected to each other and also connected to ground potential via aceramic capacitor (e.g. 1 nF, 1500 V). Low-frequency potential equali-sation currents are thus suppressed, but the protective effect againsthigh frequency interference signals remains.5.2 ConnectingThe voltage supply and signal output are connected via the spring-loaded terminals in the housing.Connection to the display and adjustment module or to the interfaceadapter is carried out via contact pins in the housing.Information:The terminal block is pluggable and can be removed from theelectronics. To do this, lift the terminal block with a small screwdriverand pull it out. When reinserting the terminal block, you should hear itsnap in.Proceed as follows:1. Unscrew the housing lid2. If a display and adjustment module is installed, remove it by turn-ing it slightly to the left.3. Loosen compression nut of the cable gland and remove blindplug4. Remove approx. 10 cm (4 in) of the cable mantle, strip approx.1 cm (0.4 in) of insulation from the ends of the individual wires5. Insert the cable into the sensor through the cable entryConnection technologyConnection procedure