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Operating Instructions ACU
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7.4.2
Mains connection
DANGER
Disconnect the frequency inverter from mains voltage and protect it against being
energized unintentionally.
Verify safe isolation from power supply.
Work on the device may only be started once the DC link capacitors have discharged.
The time to wait is at least 3 minutes in the case of sizes 1 through 7.
When the frequency inverter is disconnected from power supply, the mains, DC-link
voltage and motor terminals may still be live for some time.
The mains fuses and cable cross-sections are to be selected according to EN 602041 and DIN VDE
0298 Part 4 for the nominal operating point of the frequency inverter. According to UL/CSA, approved
Class 1 copper lines with a temperature range of 60/75 °C and matching mains fuses are to be used
for the power cables. The electrical installation is to be done according to the device specifications and
the applicable standards and directives.
CAUTION
The control, mains and motor lines must be kept physically separate from one another.
The cables connected to the frequency inverters may not be subjected to high-voltage
insulation tests unless appropriate circuitry measures are taken before.
7.4.3
Motor connection
DANGER
Disconnect the frequency inverter from mains voltage and protect it against being
energized unintentionally.
Verify safe isolation from power supply.
Work on the device may only be started once the DC link capacitors have discharged.
The time to wait is at least 3 minutes in the case of sizes 1 through 7.
When the frequency inverter is disconnected from power supply, the mains, DC-link
voltage and motor terminals may still be live for some time.
Bonfiglioli Vectron MDS GmbH recommends using shielded cables for the connection of the motor and
the braking resistor to the frequency inverter. The shield is to be connected to PE potential properly,
i.e. with good conductivity, on both sides. The control, mains and motor lines must be kept physically
separate from one another. The user must comply with the applicable limits stipulated in the relevant
national and international directives as regards the application, the length of the motor cable and the
switching frequency.
Summary of Contents for active cube 201
Page 1: ...ACTIVE CUBE Operating Instructions Frequency inverter 230 V 400 V 0 25 kW 132 kW...
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Page 45: ...12 16 Operating Instructions ACU 45...
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