Lenze Global Drive 9300 Servo PLC Series, Руководство пользователя

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9300 Servo PLC
System blocks
2.12 MCTRL_MotorControl
2-51
L
ServoPLC EN 2.0
Touch probe configuration
Code LCD Possible settings IMPORTANT o
Lenze Selection
C0910 TP delay 0 Touch probe delay
•
Compensation of delay times of TP
signal source at X5/E4
-32767 {1 inc} 32767
C0911 MCTRL TP sel 0 Touch probe selection
0 Touch probe via zero pulse
1 Touch probe through digital input X5/E4
C0912 MCTRL TP EDGE 0 Touch probe activation
•
For touch probe via digital input
X5/E4
(C0911 = 1)
0 Activation with positive signal
1 Activation with negative signal
•
Use C0490 to select the feedback system that generates the zero pulse.
(
^
2-50)
Functional sequence
1. The TP is signal-controlled via the digital input X5/E4 or a zero pulse from the incremental
encoder input X8 or resolver input X7.
2. If a TP has occurred, then MCTRL_bActTPReceived_b is set = TRUE.
3. After the start of the task, MCTRL_dnActIncLastScan_p gives the number of increments
[inc/msec] that have been counted since the TP.
4. Following,
MCTRL_bActTPReceived_b
= FALSE is set.
Note!
It is necessary that all three outputs ( MCTRL_nNAct_v , MCTRL_bActTPReceived_b and
MCTRL_dnActIncLastScan_p ) are processed in the task even if only one signal is required.
MCTRL_nNAct_v
•
The value MCTRL_nNAct_v is scaled in increments per millisecond.
(INT) 16384 corresponds to 15000 rpm. See chapter 1.2.7, “Signal types and normalisations”.
(
^
1-8)
•
For every task in which MCTRL_nNAct_v is used, the operating system creates an individual
counter that is reset after every start of the task (task-internal process image).
Example ( MCTRL_nNAct_v in a 10 msec task):
•
When the 10 msec task starts, the value of the integrator is stored in a local area of the task
and the integrator is reset. The value in the local area gives an average value in increments per
1 msec.
•
If a position value is to be derived from this value, then it must be multiplied by
SYSTEM_nTaskInterval / 4, to get the result in increments per
10 msec, as in the example.
Example: In a 1 msec task,
SYSTEM_nTaskInterval has the value 4 (4 * 250
µ
s = 1 msec)
•
For Lenze FBs, this process has already been implemented in the FBs.
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