Setting Parameters
01/02 AWB8230-1415GB
170
• The DV6 frequency inverter decelerates the motor down to the
brake release frequency (PNU b125).
• The BRK output (release brake) is deactivated, i.e. the brake
should engage.
• The waiting time set under PNU b124 starts and the frequency
inverter continues to output the same frequency (PNU b125).
• Within this time, the external brake must deactivate the BOK
input.
If the BOK input is not deactivated, the frequency inverter acti-
vates the BER output and issues fault message E36.
• As soon as the BOK input is deactivated, the waiting time
before Stop set under PNU b123 begins.
• When the waiting time in PNU b123 has expired, the frequency
inverter decelerates the motor to 0 Hz.
X
Program one of the digital inputs 1 to 8 as BOK by setting the
corresponding PNU (C001 to C008) to 44.
X
Program one of the digital outputs 11 to 15 as BRK by setting
the corresponding PNU (C021 to C025) to 19.
X
Program one of the digital outputs 11 to 15 as BER by setting
the corresponding PNU (C021 to C025) to 20.
X
Program PNU b121 to b126 according to your application.
Figure 171: Brake control function chart
BER
BOK
BRK
PNU b125
FWD
PNU b122
PNU b121
PNU b124
PNU b124
PNU b123
t
f
o
PNU
Name
Adjustable in RUN mode
Value
Function
WE
Normal
Extended
b120
Brake control
–
j
00
Inactive
00
01
Active
b121
Brake released
confirmation
waiting time
0 to 5 s
This is the time which the DV6 waits after the Enable
frequency (PNU b125) is reached before activating the
output configured as BRK (release brake).
0.00
b122
Waiting time
before accele-
ration
0 to 5 s
This is the time which the DV6 waits after activating the
input configured as BOK before accelerating the motor to
the setpoint frequency.
0.00
b123
Waiting time
before stop
0 to 5 s
This is the time which the DV6 waits after deactivating the
input configured as BOK before decelerating the motor to
0 Hz.
b124
Confirm
Braking wait
time
0 to 5 s
During this time, the confirmation that the brake has been
applied must reach the BOK input. Otherwise, the DV6 deac-
tivates the BRK output, activates the BER output (brake
fault) and issues fault message E36.
b125
Brake enable
frequency
0 to 400 Hz
At this frequency, the DV6 activates the digital output confi-
gured as BRK after the waiting time set under PNU b121.
b126
Brake enable
current
0 to 2
x
I
e
Minimum current required to activate the output configured
as BRK.
I
e
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