Function block library
7-47
SHB9300CRV EN 2.0
7.6.12 Holding brake (BRK)
Purpose
The FB is used to trigger a holding brake.
Possible applications:
l
Hoists
l
Traversing drives
l
Active loads
CTRL
BRK-SET
C0459
BRK-OUT
C0450
C0451
BRK-Nx
C0458/1
BRK-QSP
BRK-M-STORE
BRK-CINH
BRK-M-SET
C0452
BRK-SIGN
C0458/1
SIGN
t
0
t
0
CINH
MCTRL-NACT
MCTRL-MACT
C0195
C0196
C0244
BRK
MCTRL-NSET2
Fig. 7-39 Holding brake (BRK)
Signal
Source Note
Name Type DIS DIS format CFG List Lenze
BRK-SET d C0459 bin C0451 2 1000 -
BRK-NX a C0458/1 dec [%] C0450 1 1000 Speed threshold from which the drive can
output the signal ”close brake”. The signal
source for this input can be a control code,
a fixed value or any other analog output of
aFB.
BRK-SIGN a C0458/2 dec [%] C0452 1 1000 Direction of the torque, with which the
drive has to build a torque against the
brake.The signal source for this input can
be a control code, a fixed value or any
other analog ouptput of a FB.
BRK-M-SET a - dec [%] C0244 - 0.00 Holding torque of the DC injection brake
100% = value of C0057
BRK-T-ACT a - dec C0195 - 99.9 Brake-close time
BRK-T-RELEASE a - dec C0196 - 0.0 Brake-open time
Function
The signals N-ACT, M-ACT, N-SET and BRK-Nx are processed as absolute values within the
function block.
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