Calculation of the brake resistor

During the braking procedure of the linear axis, energy is fed back into the servo drive. During the design the regenerative power must be calculated in order to select a brake resistor if necessary.

To do this the peak and continuous power must be calculated.

P_max = 0.9 * (m * V²) / (2 t_b)

P_rated = P_max * t_b / t_z

P_max = maximum power of the brake resistor in Watts (W)

P_rated = continuous power of the brake resistor in Watts (W)

M = moved mass (carriage + load) in kg

V = carriage velocity in m/s

t_b = braking time in s

t_z = cycle time in s