Accessories; Brake Resistors - Lenze 8600 series Operating Instructions Manual

6
Accessories are not included in the scope of supply.
6.1
In the generator mode, e.g. when decelerating the drive, the
inertias are braked and/or short deceleration times are set, the DC
bus voltage may exceed its maximum permissible value. In the
and indicates "overvoltage ". The controller cancels the pulse inhibit
once the votlage has returned to the permissible range.
To avoid overvoltage during braking, a brake chopper is used,
DC bus exceeds 765 V.
The absorbed energy is dissipated as heat so that the voltage in
the DC bus does not rise further.
The brake chopper is already included in the Standard
l
controller.
The suitable brake chopper is available as an Option. It is
l
connected to the terminals BR1 and BR2
(see connecting diagram, page 28).
38

Accessories