D685A1156U01 ABB flowmeter USES

D685A1156U01 ABB flowmeter USES

It is recommended that the AC to DC Power Supply Unit is connected to the system earth using the earth stud provided at the rear of the unit. For additional electrical safety a Residual Current Device (RCD) type circuit breaker should be used at the supply source.There are two types of AC to DC Power Supply Unit, an 8-Way 50W and 16-Way 50W. The 8-way unit may be upgraded to 100W with the addition of a second 50W Switched Mode Module. The 16-way unit may be upgraded to 100W, 150W or 200W with the addition of 50W Switched Mode Module(s) and if necessary a 50W Sub Unit.

To upgrade the 8-Way or 16-Way AC to DC Power Supply Units to 100W proceed as follows: (1) Remove and retain the screws securing the top cover of the power supply unit and lift the cover clear. (2) Cut and remove the retaining straps that secure the unused ac and dc connecting cables to the sub-unit chassis. (3) On the 50W Switched Mode Module to be added to the 50W SubUnit, remove and discard the four packing screws from the underside of the module, however, retain the long nuts and washers. (4) On the 50W Switched Mode Module to be added to the 50W SubUnit, ensure that the spacers under the printed circuit board are correctly located.

Insert the module

 with the same orientation as the already fitted module, into the vacant position inside the 50W Sub Unit and secure using the washers and long nuts retained in Step (3).Refit the top cover. 18.3 16-Way AC to DC Power Supply Unit Upgrade to 150W or 200W To upgrade the 16-Way AC to DC Power Supply Unit to 150W or 200W proceed as follows: (1) Fit a second 50W Sub unit, containing a 50W Switched Mode Module, to the 16-way AC to DC Power Supply Unit front panel using the fixings supplied. (2) When an upgrade to 200W is required, fit a further 50W Switched Mode Module into the new 50W Sub unit as indicated in Section 17.2.

WARNING

 High ac mains voltages may be present at the system power supply unit and at the relay terminals of the interface cards. Appropriate safety precautions must be taken when commissioning or servicing the system. IMPORTANT Commissioning and maintenance of the system should be carried out by trained authorised personnel only

THE Main products

PLC programmable controller module, DCS card, ESD system card, vibration monitoring system card, steam turbine control system module, gas generator spare parts, etc. Advantage brands: Allen Bradley, BentlyNevada, ABB, Emerson Overseas, Honeywell DCS, Rockwell ICS Triplex, FOXBORO, Schneider PLC, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft and other imported industrial parts

The products are widely used in metallurgy, oil and gas, glass manufacturing, aluminum, petrochemical, coal mine, paper and printing, textile printing, machinery, electronic manufacturing, automobile manufacturing, plastic machinery, power, water conservancy, water treatment/environmental protection, boiler heating, energy, power transmission and distribution, etc