Lenze EVS9332xS - Manual (Page 90)

Function library
Function blocks
3.2.13 Holding brake (BRK)
3−38
l
EDSVS9332S−EXT EN 2.0
3.2.13.3 Setting controller inhibit
Setting controller inhibit may for instance be required in the case of a fault (LU, OU, ...).
Function
When the controller is inhibited (CINH), the BRK1−OUT signal is set to HIGH immediately. The drive
is then braked via the mechanical brake.
If the fault is eliminated quickly, i.e. the controller inhibit (CINH) is reset before the actual speed falls
below the threshold value BRK1−Nx, the BRK1−OUT signal is set to LOW immediately. The drive is
synchronised to the actual speed and follows its setpoint.
If the value falls below the threshold, the drive starts as described under "Release brake".
C0196
t
t
BRK1−CINH
MCTRL−NACT
BRK1−OUT
|BRK1−Nx|
BRK1−QSP
MCTRL−MACT MCTRL−MACT = C0244
BRK1−M−STORE
t
t
t
t
Fig. 3−34 Brake control with CINH