Lenze EVS93 Series, System Manual

Page: 122 / 386

Function library
Function blocks
3.2.24 Clutch (CLUTCH 3)
3−94
l
EDSVS9332K−EXT EN 4.0
3.2.24.4 Minimum speed after disengaging
Description
For printing units, the drive may not be brought into standstill after disengaging, because the paint
dries up. The printing unit has to continue rotating at a minimum speed.
Function sequence
N S E T
t
n N
T i
t i
v _ P H I - S E T
C L O S E
t
L O W - V E L
O P E N
t
fb_clutch3_02
Fig. 3−62 Path−time diagram: Disengaging process
v_PHI−SET Speed of the external master angle at CLUTCH3−PHI−SET
nN Machine speed
NSET Speed setpoint at CLUTCH3−NSET
LOW−VEL The minimum speed which is taken up after disengaging is specified at CLUTCH3−LOW−VEL.
CLOSE With CLUTCH3−CLOSE = LOW, the declutching process is started.
After disengaging, all ramps are deactivated. In the case of speed variations at CLUTCH3−LOW−VEL, the
output CLUTCH3−NSET is directly corrected.