Lenze 9400 Manual de usuario descargar pdf (Pagina 544)

11 Basic drive functions

11.12 Brake control

544

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

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11.12.6 Mode 22: Automatic DC-injection braking

This function extension is available from software version V3.0!

If mode 22 has been selected in C02580

, DC-injection braking is executed automatically if the

current speed setpoint falls below the speed threshold set in C02581

.

• The automatic is only effective in the function states "Drive is stopped", "Drive at standstill",

"Quick stop active", and "Fault".

• DC-injection braking is executed for the brake closing time set in C02589

with the braking

current set in C00974

.

• After the brake closing time has elapsed, the controller inhibit is set automatically by the basic

function "brake control".

[11-42] Example 1: Speed follower active  stopping active (stopping time > brake closing time)  speed follower active

 Note!

Automatic DC-injection braking is only possible if V/f control or sensorless vector control

is selected as motor control type in C00006

!

 Danger!

If the braking current is set too low, or the application time is too short, controller inhibit

is set and the drive becomes torqueless before being completely braked to standstill by

means of DC-injection braking!

 C02581: Brake activation threshold

 C02589

: Brake closing time

t

t

Enable speed follower

t

Speed setpoint

Speed follower active

Stopping active

DC brake active



t

t

CINH



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