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• ThisoperationmustbecarriedoutbyABBpersonnelor

by suitably qualified customer personnel with in-depth

knowledgeoftheapparatus(IEC62271-1,par.10.4.2.).

• Alwayscheckthattheapparatusisintheopenposition

before carrying out any activities.

Check that the medium voltage and auxiliary power supplies

have been removed.

Maintenance of the apparatus must only be carried out with

thecontactorde-energized,racked-outofthecompartment

of the enclosure and with the capacitor of the auxiliary

circuitdischarged.Todischargethecapacitor,remove

power from the -XDB10 terminal box and connect the

mobile two-pole -XDB50 connector to the ABB type CFD

device(fig.13c).Completionofdischargingissignalledby

the red light going completely off.

• Theauxiliarycircuitcanbeconfiguredforallthedirectand

alternating current voltages within the reference range. To

changethevoltagevaluedefinedduringtheorderingstage,

proceed as follows: 1) remove the rear plastic protection

(fig.13a);2)accesstheMACR2electroniccard(fig.13b);

3) prepare the dip-switches according to the indications

given on the last page of the electric circuit diagram.

• Afterhavingsetthedesiredvalue,thelabelwiththenew

voltage value must be overlayed the front rating plate of the

contactor.

Fig. 13a

Fig. 13b

Fig. 13c

Fig. 13d

• Thesmallplatewiththecorrectvoltagevalueisinthe

documentenvelopeaccompanyingtheproduct,alongwith

the electric circuit diagram and this manual.

• Contactorfunctionalcheckismandatoryafterthenew

voltagesetting;thequalifiedcustomer’spersonnelshould

carryoutthischeck,responsibilityfortheinterventionslies

with the customer.

5.7.2.1 Changing the supply voltage of the contactor

(within the reference range)

NEPSI.COM - Northeast Power Systems. Inc.

ABB V-Contact VSC Series User Manual

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