Lenze DSD Manual de usuario descargar pdf (Pagina 326)

100

101

11 Drive Dimensioning

11.3 Mechanical brake selection

326

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23

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11.3 Mechanical brake selection

There are two types of brakes for Lenze motors:

• Spring-applied brakes for three-phase AC motors and servo motors.

• Permanent magnet holding brakes for servo motors.

According to their function, the brakes are distinguished as follows:

The diagram below shows the braking torques of spring-applied brakes (BFK) and permanent mag-

net holding brakes (PMB) as a function of the motor speed.

[11-8] BFK and PMB diagram: braking torque as a function of the motor speed

Function Braking

(standstill/operating speed)

Cyclically recurring braking

Holding brake n = 0 No

Holding brake with safety function

• Do not use permanent magnet holding brakes for

hoist drives!

n = n

max

Service brake

• Dimensioning not possible in DSD.

n = n

max

Yes

100

M [%]

[n]

1000

100

3000 5000





Description

 Spring-applied brake

 Permanent magnet holding brake

M Braking torque [%]

• The rated torque (100 % = M

rated

) is valid if n = 100 rpm

n Motor speed

1 2 ... 321 322 323 324 325 326 327 328 329 330 331 ... 495 496

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