ABB ACS800 Application Manual page 19
Single drive common dc configurations
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Also See for ACS800:
- Firmware manual (340 pages) ,
- Hardware manual (210 pages) ,
- Cabinet installation and operating instruction (162 pages)
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Peak current through the contactor in brake resistor circuit can be calculated with
equation 5.
⋅
1.21 U
I ˆ
DC
-------------------------
=
R
brake
The rms current during the braking can be calculated with equation 6.
P
br
I
=
-------------
rms
R
brake
R
is the brake resistor's resistance. P
brake
is the applied braking power.
br
19
(equation 5)
(equation 6)
Design
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