Lenze EVF9383 - Manual (Page 409)

Braking operation in the network 10.4
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10.4−1 EDSVF9383V EN 7.1−04/2012
10.4 Braking operation in the network
ƒ Controllers EVF9335 ... EVF9383 in variants V270 and V300 are
equipped with an integrated brake transistor.
ƒ Controllers EVF9381 ... EVF9383 in variants V270 and V300 consist of a
master and a slave. Both master and slave contain one brake transistor,
respectively. The braking energy is normally dissipated in equal shares
via master and slave.
ƒ In the DC−bus connection you have to set the switching thresholds of
the brake transistors for all controllers of variants V270 and V300 to
the same value (C0174).
ƒ When the braking energy is low (e. g. operation in generator mode),
you can also use 9352 brake choppers. A simultaneous braking
operation with a 9352 brake chopper and an integrated brake resistor
is not possible due to the different switching thresholds.