Programming the control
signal terminals
01/02 AWB8230-1415GB
100
Brake enable confirmation (BOK)
The digital input configured as BOK is used for monitoring an
external brake, which is needed where heavy loads are to be lifted,
such as for lift and crane controllers. When an external brake is
employed, you should use the SLV (sensorless vector) or 0 Hz SLV
control mode, which can provide a higher torque (
a
Section
“Voltage/frequency characteristic and voltage boost“, Page 126).
The BOK input of the DV6 is activated by the Enable signal of an
external brake as long as the external brake is released.
X
Program one of the digital inputs 1 to 8 as BOK by setting the
corresponding PNU (C001 to C008) to 44.
For detailed description of the extended parameter groups,
a
Section “Controlling an external brake“, Page 169.
Figure 96:
Digital input FW configured as FWD (start/stop clockwise
operation), 1 as BOK (confirm brake enable) and 8 as REV
(start/stop anticlockwise operation)
a
Brake Released signal
REV
FWD
BOK
P24
FW
1
8
a
Figure 97:
Brake control function chart
BER
BOK
BRK
PNU b125
FWD
PNU b122
PNU b121
PNU b124
PNU b124
PNU b123
t
f
o
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