Lenze 9400 Uživatelský manuál stáhnout pdf (Strana 541)

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06 541

11 Basic drive functions

11.12 Brake control

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Only activate brake below threshold for brake activation

When C02582

= "1", the brake remains released until the threshold set in C02581 for brake

activation has been reached to protect the brake from excessive wear.

• The braking action only takes places due to the friction in the load mechanics.

• Only when the motor speed has reached the threshold for brake activation, the brake will be

closed.

 Stop!

Do not set the threshold for brake activation in C02581 too high to protect the motor

holding brake from wear!

 Note!

For the encoderless motor control types (from software version V3.0) the following

applies:

If V/f control without encoder or sensorless vector control is selected, there is no speed

information for the controller in the case of pulse inhibit, therefore the threshold set in

C02581

for the brake activation is not effective in this case.

In order to avoid that the motor holding brake is closed in case of pulse inhibit, a waiting

time for the brake activation can be parameterised in C02593

. In case of pulse inhibit,

the motor holding brake is then only triggered to close after this application time has

elapsed. Brake activation in automatic operation

( 527)

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