Lenze EMB9352−C Manual do Utilizador descarregar pdf (Página 85)

Dimensioning

Dimensioning examples

Vertical movement



EDBMB935X DE/EN/FR 13.0

Step 1: Calculate brake resistance

gen,max

(725V)

11kW

+ 47.8W

Step 2: Determine the number of brake resistors

A brake resistor is selected with 47 W.

ƒ Please observe the rated power when dimensioning the brake resistors. It

results from the average braking power of a machine cycle.

Step 3: Calculate the number of brake choppers per brake resistor

Brm

gen,ave

(3s)

@ P

)

9.33kW

1 @ 10kW

+ 0.933 å 1

The brake resistor requires one brake chopper.

1 2 ... 80 81 82 83 84 85 86 87 88 89 90 ... 173 174

Sem comentários

Lenze EMB9352−C Manual do Utilizador Página 85