5motor control (mctrl) – Lenze 8400 BaseLine D User Manual

Page 99

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Lenze · 8400 BaseLine D · Reference manual · DMS 5.5 EN · 01/2014 · TD05

99

5

Motor control (MCTRL)

5.6

Parameterisable additional functions

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Explanation of the automatic DC-injection braking function by means of an example

[5-4]

Example 1: Signal characteristic for automatic DC-injection braking of a drive without speed feedback

 Speed setpoint

 Actual speed value of the motor

 Output current of the controller

 Pulse inhibit

 DC-injection braking is active

The motor rotates at a specified

speed. The current adjusts itself to

the load, see .

The DC braking current set in

C036

is injected.

After the hold time (

C106

) has

expired, a pulse inhibit is set.

0

1

2

3

4



‚

C0107

C00036

C00019

ƒ

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