GEI-100350A
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3.6. USE OF DC LINK DISCHARGE FUNCTION
The braking unit can be used for discharging of DC Link with high capacitive value (e.g. in systems where the
DC Link is parallel connected) by a dipswitch setting.
In order set the switch S1-1 in position ON and bridge terminals 9 and 10.
In this condition the discharge of DC Link is obtained up to a value equal or lower than 60Vdc, applying an
external voltage between 10 and 30Vdc to the terminals 7 and 8 (SIN) or using the internal voltage present at the
terminals 1 and 2.
In order to avoid damages to the braking resistor, the user must pay particular attention to the inser-
tion sequence of this command. The signal must be supplied to the braking unit through an interblocked
contact with the contactors that supply the inverters.