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4 "open brake" function, Open brake" function, Function library – Lenze LDECBBF1xxxxxxHx User Manual

Page 56

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Function library

Motor control
"Open brake" function

8

l

56

LDEDS−CCU210B EN 4.0

Description

Possible settings

Code

Selection

Lenze

Byte

<

ñò

No.

C0444

Deceleration ramp Vx

ð VLx for ...

^ 55

1 RW

EXT

4

50

1

{Hz/s}

255 ... Frequency limitation 1

2

50

... Frequency limitation 2

3

50

... Frequency limitation 3

4

50

... Frequency limitation 4

8.5.4

"Open brake" function

You can also open the motor brake via digital signal sources (C0410/15) without using the
"Motor V1−V8" functions.

In order to prevent an overload of the brake by triggering it for too long, a maximum
triggering time can be parameterised via C0451. After this time has elapsed, the brake
automatically engages even if a trigger signal is available.

If the "Motor V1−V8" functions are active, the motor brake always is open automatically.

Codes for parameter setting

Code

Possible settings

Description

No.

ñò

< Byte Lenze

Selection

C0450

RW

EXT

4

0

"Open brake" function:
configuration

^ 56

0

Brake opens immediately

Brake opens if C0410/15 = HIGH

1

Brake opens with delay

Brake opens if C0410/15 = HIGH
and drive frequency = 0 Hz

C0451

RW

EXT

4

0

"Open brake" function:
maximum activation time

^ 56

0

{s}

1000

l

C0451 = 0 s:
– Brake opens if

C0410/15 = HIGH

– Brake closes if

C0410/15 = LOW

l

C0451 > 0 s:
– Brake opens if

C0410/15 = HIGH

– Brake closes after the time set

if C0410/15 = HIGH