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Equipping the drive with a main contactor and manual
control switch or switches
It is highly recommended to equip the drive with a main contactor and wire it to fault indication
relay output X3 on the chopper control board. This configuration also requires a manual
start/stop switch(es) for system start-up.
The relay output indicates chopper faults, for example, in a thermal overload situation (see
section
Protecting the system against thermal overload (page 27)
). The changeover switch
opens when a failure is detected or the chopper is unpowered.
WARNING!
In a chopper failure, always switch off the power supply to the drive. This is the
only way to guarantee safe operation in case of a chopper failure since the chopper
is unable to disconnect the resistor from the intermediate circuit.
For connection examples, see the diagram below.
22 Planning the installation
Содержание ACS880-604LC
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Страница 33: ...Overview of kits Mechanical installation 33 10 ...
Страница 34: ...Stage 1 Installation of common parts 34 Mechanical installation ...
Страница 35: ...Stage 2 Installation of mounting plate Mechanical installation 35 10 ...
Страница 36: ...Stage 3 Installation of cooling components 36 Mechanical installation ...
Страница 37: ...Stage 4 Installation of brake module and attenuator Mechanical installation 37 10 ...
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Страница 84: ...Brake chopper module NBRW 669 84 Dimension drawings ...
Страница 85: ...Attenuator Dimension drawings 85 ...
Страница 86: ...Brake resistor 234 300 1320 Ø 7 345 R R 1270 86 Dimension drawings ...
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