ABB ACS800-37-0060-3 - Example 3

Resistor braking
224
Example 3
Duration of a braking cycle is three minutes. The braking time is 10 seconds.
Result: The maximum allowed braking power for the cycle is equal to the Maximum
Braking Power (P
brmax
) given for the reference cycle.
T = Duration of the braking cycle
t
br
P
brmax
t
P
br
600 s
P
br
<
P
brmax
× 60 s
4 × 10 s
= 1.5 · P
brmax
1.
2. P
br
> P
brmax
Not allowed.