Function library
7-128
L
EDSVS9332P-D21 EN 3.0
7.5.29.2 Opening the brake (release)
Purpose A LOW signal at the BRK-SET input
immediately sets the BRK-CINH output
toLOW.Atthesametimethe
BRK-M-STORE output is set to HIGH.
This signal can be used to genera te a
defined torque against the brake. The
drive thus takes over the torque while
the brake is released. The signal is only
reset after the time set under C0196 is
elapsed.
t
BRK-SET
BRK-RSP
t
BRK-M-STORE
t
BRK-QSP
Function The BRK-OUT output signal is set to
LOW as soon as the torque reaches the
value set under C0244 (holding torque).
When the input is reset, a time el ement
is triggered. After the time set under
C0196 has elapsed the BRK-QSP output
is reset. This signal serves to e.g.
release the setpoint integrator after the
brake release time has elapsed.
t
MCTRL-NSET2
BRK-OUT
MCTRL-MACT
MACT = C0244
C0196
t
t
t
Note If an actual value higher than the value at BRK-Nx is detected before the brake release time (C0196) has elapsed, the
signals BRK-QSP and BRK-M-STORE are reset immediately. The drive can immediately operate speed- or phase-controlle d.
If the BRK-QSP output acts on the QSP control word the drive is synchronised to the actual speed and follows its setpoint.
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