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28 Planning the installation
Protecting the resistor cable against short-circuits
The brake unit requires the use of brake circuit fuses. The fuses protect the brake chopper
and the brake circuit cables in a cable short-circuit situation.
Controlling the brake chopper from an external control
location
The brake chopper can be controlled from an external control location via a fiber optic link
(terminals V22 and V23 on the chopper control board). Using the link, it is possible to
synchronize several brake choppers. For instructions, see section
Synchronizing multiple
brake choppers (page
45).
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