Use
1.
Open the activation switch, or activate the safety functionality that is wired
to the STO connection.
2.
The STO inputs on the drive control unit de-energize, and the control unit cuts
off the control voltage from the output IGBTs.
3.
The control program generates an indication as defined by parameter 31.22
(see the firmware manual of the drive).
4. The motor coasts to a stop (if running). The drive will not restart while the
activation switch or safety relay contacts are open.
5. Deactivate the STO by closing the activation switch, or resetting the safety
functionality that is wired to the STO connection.
6. Reset any faults before restarting.
WARNING!
The Safe torque off function does not disconnect the voltage of the main
and auxiliary circuits from the drive. Therefore maintenance work on electrical
parts of the drive or the motor can only be carried out after isolating the
drive from the supply and all other voltage sources.
WARNING!
The drive cannot detect or memorize any changes in the STO circuitry when
the drive control unit is not powered or when the main power to the drive is
off. If both STO circuits are closed and a level-type start signal is active when
the power is restored, it is possible that the drive starts without a fresh start
command. Take this into account in the risk assessment of the system.
This is also valid when the drive is only powered by a CMOD-xx multifunction
extension module.
WARNING!
Permanent magnet or synchronous reluctance [SynRM] motors only:
In case of a multiple IGBT power semiconductor failure, the drive can produce
an alignment torque which maximally rotates the motor shaft by 180/
p
degrees (with permanent magnet motors) or 180/2
p degrees (with
synchronous reluctance [SynRM] motors) regardless of the activation of the
Safe torque off function.
p denotes the number of pole pairs.
Notes:
•
If a running drive is stopped by using the Safe torque off function, the drive
will cut off the motor supply voltage and the motor will coast to a stop. If this
420 The Safe torque off function
Содержание ACS580 Series
Страница 1: ...ABB GENERAL PURPOSE DRIVES ACS580 01 drives Hardware manual...
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Страница 19: ...Further information Table of contents 19...
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Страница 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...
Страница 206: ...R5 DC DC L1 L2 L3 T1 U T2 W T2 V 11 11 7 3 9 5 10 6 4 R5 0 4 lbf ft 206 Electrical installation North America...
Страница 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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Страница 227: ...Note Only 24 V DC can be used for STO Only PNP input configuration can be used Control unit 227...
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Страница 258: ...3a 3b 3c 4 5 7 6 2d 2a 2b 2c 258 Maintenance...
Страница 364: ...Frame R1 IP21 UL Type 1 3AXD10000601652 364 Dimension drawings...
Страница 365: ...Frame R1 IP55 UL Type 12 3AXD10000601699 Dimension drawings 365...
Страница 366: ...Frame R1 IP55 F278 UL Type 12 366 Dimension drawings...
Страница 367: ...Frame R1 IP66 UL Type 4X B066 3AXD50001012694 Dimension drawings 367...
Страница 368: ...Frame R1 IP66 UL Type 4X B063 3AXD50001012694 368 Dimension drawings...
Страница 369: ...Frame R1 IP66 UL Type 4X C193 3AXD50001012694 Dimension drawings 369...
Страница 370: ...Frame R2 IP21 UL Type 1 3AXD10000602398 370 Dimension drawings...
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Страница 378: ...Frame R3 IP55 E223 UL Type 12 378 Dimension drawings...
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Страница 380: ...Frame R3 IP66 UL Type 4X B066 3AXD50001013059 380 Dimension drawings...
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Страница 391: ...Frame R6 IP21 UL Type 1 3AXD10000258705 Dimension drawings 391...
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Страница 437: ...Dimension drawings The dimensions are in millimeters Optional I O extension and adapter modules 437...
Страница 459: ...Optional I O extension and adapter modules 459...
Страница 460: ...460...