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Operating Instruction - Frequency Inverter 230V / 400V ... - opis.cz

Operating Instruction - Frequency Inverter 230V / 400V ... - opis.cz

Operating Instruction - Frequency Inverter 230V / 400V ... - opis.cz

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5.5 Connection of a Brake ResistorConnection of a brake resistor is done via terminal X2.Danger!Switch off power supply before connecting or disconnecting the brakeresistor cables to terminal X2. Dangerous voltage may be present at themotor terminals and the terminals of the brake resistor even after thefrequency inverter has been disconnected safely from power supply. Waitfor some minutes until the DC link capacitors have discharged beforestarting to work at the unit.• The unit may only be connected with the power supply switched off.• Make sure that the frequency inverter is discharged.Caution!The brake resistor must be equipped with a temperature switch. The temperatureswitch must disconnect the frequency inverter from mains supplyif the brake resistor is overloaded.5.5.1 <strong>Frequency</strong> <strong>Inverter</strong> (0.55 up to 4.0 kW)Degree of protection IP20 (EN60529) is only guaranteed if terminal X2 is connected.Connection of brake resistor with temperature switchX2X2Rb1 Rb2 UVWPhoenix ZEC 1,5/ .. ST7,520.2 … 1.5 mmAWG 24 … 1620.2 … 1.5 mmAWG 24 … 16Rb1T1R bRb2T220.25 … 1.5 mmAWG 22 … 1620.25 … 1.5 mmAWG 22 … 1602/06 39

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