Rockwell Automation AK DBU - Dynamic Braking Unit 600/690 VAC User Manual
Page 47

Design Information
C-9
If no resistor appears in the following tables that is greater than the
minimum allowable resistance (R) and is less than the calculated
maximum resistance (R
db
):
• Adjust the deceleration time of the application to fit an available
resistor package.
or
• Use the calculated data to purchase resistors locally.
!
ATTENTION: Damage of the IGBT will result if the resistance value
of the resistor bank is less than the minimum resistance value for the
DBU as indicated in the product’s nameplate data and in
Verify the resistance value of the selected resistor bank is greater than
the minimum resistance for the DBU.
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