after the break automatically, or remain closed over the break. Depending on the
contactor control circuit design, this can require an additional hold circuit,
uninterruptible auxiliary power supply or auxiliary power supply buffering.
Note: If the power loss lasts so long that the drive trips on undervoltage, a fault
reset and a fresh start command is required to continue operation.
Implement the power-loss ride-through function as follows:
1.
Enable the power-loss ride-through function of the drive (parameter 30.31).
2.
If the installation is equipped with a main contactor, prevent its tripping at
the input power break. For example, use a time delay relay (hold) in the
contactor control circuit.
3.
Enable the automatic restart of the motor after a short power supply break:
•
Set the start mode to automatic (parameter 21.01 or 21.19, depending on
the motor control mode being used).
•
Define the automatic restart time (parameter 21.18).
WARNING!
Make sure that a flying restart of the motor will not cause any danger. If you
are in doubt, do not implement the power loss ride-through function.
Using a safety switch between the drive and the motor
ABB recommends to install a safety switch between the permanent magnet motor
and the drive output. The switch is needed to isolate the motor from the drive
during maintenance work on the drive.
Implementing a bypass connection
If bypassing is required, employ mechanically or electrically interlocked contactors
between the motor and the drive and between the motor and the power line. Make
sure with interlocking that the contactors cannot be closed simultaneously. The
installation must be clearly marked as defined in IEC/EN/UL 61800-5-1, subclause
6.5.3, for example, “THIS MACHINE STARTS AUTOMATICALLY”.
WARNING!
Never connect the drive output to the electrical power network. The
connection may damage the drive.
122 Guidelines for planning the electrical installation
Summary of Contents for ACS580 Series
Page 1: ...ABB GENERAL PURPOSE DRIVES ACS580 01 drives Hardware manual...
Page 2: ......
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Page 19: ...Further information Table of contents 19...
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Page 163: ...R5 4 6 11 11 10 4 3 5 7 8 9 0 5 0 6 N m 0 4 lbf ft 8 4 Electrical installation Global IEC 163...
Page 207: ...R6 R9 11 11 7 3 9 5 10 6 4 R6 R9 0 4 lbf ft Electrical installation North America 207...
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Page 258: ...3a 3b 3c 4 5 7 6 2d 2a 2b 2c 258 Maintenance...
Page 364: ...Frame R1 IP21 UL Type 1 3AXD10000601652 364 Dimension drawings...
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Page 459: ...Optional I O extension and adapter modules 459...
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