Beckhoff KL2532 Documentation page 19

A motor efficiency of 80 % is usual in practice.
The motor thus converts 80 % of the rated electrical power into kinetic energy when accelerating.
Conversely, when braking, the motor (as a generator) converts 80 % of the kinetic energy into electrical
power.
This results in a practical brake power of:
P = P /2 x 80/100 x 80/100
CH N
P = 125W x 80/100 x 80/100
CH
P = 80 W
CH
KL2532/KS2532, KL2552/KS2552 Version: 3.2.0
Basic function principles
19