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Program features 125
The internal brake choppers in the drive (in frames R0…R3) start conducting when
the DC link voltage reaches approximately 1.15 ×
U
DCmax
. 100% maximum pulse
width is reached at approximately 1.2 ×
U
DCmax
. (
U
DCmax
is the DC voltage
corresponding to the maximum of the AC supply voltage range.) For information on
external brake choppers, refer to their documentation.
Note:
Overvoltage control needs to be disabled for the chopper to operate.
Settings
(page
); parameter group
(page
ACS580 FW.book Page 125 Wednesday, September 21, 2016 9:48 PM