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Digitax HD M753 Control User Guide
Issue Number: 3
Figure 12-27 Open-loop brake function
The brake control functions are provided to allow well co-ordinated operation of an external brake with the drive. While both hardware and
software are designed to high standards of quality and robustness, they are not intended for use as safety functions, i.e. where a fault or
failure would result in a risk of injury. In any application where the incorrect operation of the brake release mechanism could result in injury,
independent protection devices of proven integrity must also be incorporated.
WARNING
Digital Output 2 in default configuration is selected as an output to release a brake. When drive terminals are programmed to non default
settings the result of incorrect or delayed programming must be considered as this may result in the brake being released inadvertently.
WARNING
04.001
Current
M
agnitude
Brake Control:
U
pper Current
Threshold
12.043
+
_
05.001
Output
F
requency
12.044
12.045
+
_
+
_
01.011
Reference
On
L
AT
10.002
Drive
Active
Brake Control:
P
ost-Brake
Release
Delay
12.047
12.046
Ramp
H
old
02.003
I
o
r
L
AT
input
reset
output
If the reset input is 1, the output is 0.
If the reset input is 0, the output
latches at 1 if the input is 1.
i
r
o
Brake Control:
L
ower Current
Threshold
Brake Control:
Brake Release
F
requency
Brake Control:
Brake Apply
F
requency
x(-1)
Brake Control:
Brake Delay
+
_
12.051
Brake Control:
Brake Apply Through
Zero Threshold
12.041
Brake Control:
E
nable
12.042
12.043
H
ysteresis
Brake Control:
L
ower Current
Threshold
_
mm.ppp
mm.ppp
K
ey
Read-write (RW)
parameter
Read-only (RO)
parameter
Input
terminals
Output
terminals
X
X
X
X
The parameters are all shown in their default settings
12.050
Brake Control:
Initial Direction
F
orce Reference
Direction
01 57
.0
12.040
Brake Control:
Brake
Release
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