ABB DSTA131 57120001-CV Switch input card

The heat-exchange units must be arranged in such a way that condensed water that may accumulate cannot drip into the installed drive components. Units on top of the cabinet require a special design! Make sure that the control cabinet is constructed in such a way that the blower of the cooling unit cannot spray condensed water which may have collected, onto the drive components! • Ensure that no condensed water can drip into the installed drive components! • Make sure that the temperature of the heat-exchange unit has been properly set!

Interference suppression measures and EMC 

The assembly and installations regulations laid out in the project planning document "EMC for Drive and Control systems" must be adhered to in order to fulfill the legal EMC requirements. 

• Set the heat-exchange unit to a permanent temperature of 40 °C. Not lower! 

• Heat-exchangers with follow-up temperature must be set so that the temperature inside the cabinet is never lower than the outside temperature. Set the temperature limit to 40 °C!

Direct power connection 

The drives controller DKC**.1-040-7-FW can be connected directly to grounded three-phase current lines with AC 380...480 V, ±10 %. Only a fuse protector Q1, a line contactor K1, and normally a line filter are required in the power input line. If the line voltage exceeds the permitted input voltage range, then the voltage must be matched by means of an autotransformer which, in turn, has also been laid out for a specified voltage range (see Chapter 9-1).

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