Lenze EVS9332xK - Manual (Page 121)

Function library
Function blocks
3.2.24 Clutch (CLUTCH 3)
3−93
l
EDSVS9332K−EXT EN 4.0
3.2.24.1 Important notes
l A compensation function with an oversynchronous speed for engaging the clutch is not
possible. This function can be implemented via the DFRFG function block.
l The following actions may only be carried out if the clutch is disengaged or engaged. During
the process of engaging or disengaging the clutch, they will result in malfunctions.
– Setting ramps in C1706/1 ... C1706/3
– Altering clutch mode in C1707
– Altering input value at CLUTCH3−DIST
– Altering input value at CLUTCH3−LEN
– Altering input value at CLUTCH3−LOW−VEL
– Altering input value at CLUTCH3−TARGET−POS
3.2.24.2 Fault messages
If a fault occurs, the function block is automatically controlled to the status "Declutch immediately .
The output CLUTCH3−PHOUT is directed to 0 at the ramp set in C1706/1.
Fault messages Cause Remedy Note
CLUTCH3−DIR−ERR = HIGH The master angles at
CLUTCH3−PHI–SET and the actual
angle at CLUTCH−PHI–ACT have
an opposite direction of rotation.
·
Apply signals with the same
direction of rotation.
·
Check signal combination of
the inputs.
·
Extend the speed window in
C1708/1 if the master value is
troubled or fluctuates.
Monitoring is only active during
engaging the clutch.
CLUTCH3−ERR = HIGH The process of engaging the
clutch has been started although
the declutching process had not
yet been completed. Wait until the declutching process
is completed. General error for requirements
beyond the specification of the
function block.
The value 0 is applied at
CLUTCH3−LEN. Apply signal of the machine cycle
or the register length. The value
has to be > 0.
l Fault messages are reset by CLUTCH3−OPEN−INSTANT = HIGH.
3.2.24.3 Disengaging immediately
Description
You can use the function for disengaging under normal operating conditions or for disengaging in the
case of a fault.
Function sequence
l Start disengaging with CLUTCH3−OPEN−INSTANT = HIGH.
l The output CLUTCH3−PHOUT is directed immediately to the speed at CLUTCH3−LOW−VEL
along the ramp set in C1706/1.
l In the case of speed variations at CLUTCH3−LOW−VEL, the output CLUTCH3−PHOUT is
corrected along the ramp.