Lenze E94A - Manual (Page 291)

Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
291
5 Function blocks
5.80 L_EsClutchPos - clutch (time-controlled)
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Inputs
Identifier/data type Information/possible settings
dnPosIn_p
DINT
Input position in [increments]
• Selection of an external master position.
• C05335/3 indicates the input position in the real unit of the machine.
dnOpenPos_p
DINT
Standstill position after the declutch process in [increments]
• C05335/2 indicates the standstill position in the real unit of the machine.
dnBaseSpeed_s
DINT
Basic speed as speed in [rpm]
• For clutch mode C05332 = "1: Clutch-in to basic speed".
• C05336 indicates the basic speed in the real unit of the machine.
bOpen
BOOL
Control of the clutch function
• The behaviour depends on the clutch-in mode set in C05332.
TRUE "Open clutch" request (declutch process).
• The declutch position results indirectly from the declutch time set
in C05333/1.
• When the declutch process is terminated, the bOpenDone output
is set to TRUE.
Clutch-in mode "Declutching until standstill":
• The dnPosOut_p output position disengages from the dnPosIn_p
master position within the declutch time set in C05333/1 and de-
celerated to the dnOpenPos_p standstill position.
• When the dnPosOut_p output position has reached the standstill
position, the bInTarget output is set to TRUE.
Clutch-in mode "Declutching to basic speed":
• The dnPosOut_p output position disengages from the dnPosIn_p
master position within the declutch time set in C05333/1 and de-
celerated to the basic speed defined in the dnBaseSpeed_s input.
FALSE "Close clutch" request (clutch-in process).
• The clutch-in process can only be started after the declutch pro-
cess has been totally completed. An early abort of the declutch
process is not possible.
• The dnPosOut_p output position is synchronised from the stand-
still position (or basic speed) to dnPosIn_p master position again
within the clutch-in time set in C05333/1 and follows it.
• If the input and output position are synchronous again, the out-
put bClosed is set to TRUE.
bOpenInstant
BOOL
Positive opening operation of the clutch (for emergency situations)
• This input has a higher priority than the input bOpen.
FALSETRUE The dnPosOut_p output position is separated immediately from the
dnPosIn_p 3 master position and brought to standstill within the de-
celeration time set in C05333/3.
• It is not possible to abort the positive opening operation early.
• If the dnPosOut_p output position is at standstill, the output
bOpenDone is set to TRUE.
• Afterwards a clutch-in process by a FALSE-TRUE edge at the input
bOpen can only be effected again after the input bOpenInstant
has been reset to FALSE.
bForcedClose
BOOL
Reset declutch process.
• This function allows for a "hard clutch-in" and can be used for certain interruption
mechanisms or for starting up the machine.
• The reset of the declutch process should be only effected during controller inhibit
or a decoupled setpoint path.
• This input has the highest priority.
TRUE The dnPosOut_p output position is set immediately to the dnPosIn_p
master position.
• The clutch is now clutched-in.
• The output bClosed is set to TRUE.