ABB AM801F Analog module industrial system controller

Description

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Do not work on a drive when a rotating permanent magnet motor is connected to
it. A rotating permanent magnet motor energizes the drive including its input
power terminals.
Before installation, start-up and maintenance work on the drive:
• Stop the motor.
• Disconnect the motor from the drive with a safety switch or by other means.
• If you cannot disconnect the motor, make sure that the motor cannot rotate during
work. Make sure that no other system, like hydraulic crawling drives, can rotate
the motor directly or through any mechanical connection like felt, nip, rope, etc.
• Measure that the installation is de-energized.
• Use a multimeter with an impedance of at least 1 Mohm.
• Make sure that the voltage between the drive output terminals (T1/U, T2/V,
T3/W) and the grounding (PE) busbar is close to 0 V.
• Make sure that the voltage between the drive input power terminals (L1, L2,
L3) and the grounding (PE) busbar is close to 0 V.
• Make sure that the voltage between the drive DC terminals (UDC+, UDC-) and
the grounding (PE) terminal is close to 0 V.
• Install temporary grounding to the drive output terminals (T1/U, T2/V, T3/W).
Connect the output terminals together as well as to the PE.
Start-up and operation:
• Make sure that the operator cannot run the motor over the rated speed. Motor
overspeed causes overvoltage that can damage or explode the capacitors in the
intermediate circuit of the drive.