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System Manual – MOVIDRIVE® compact Drive Inverters
3
Explanation of the parameters
Parameters
P931 IPOS CTRL
word Task 1
Setting range: STOP / START / HOLD
IPOS CTRL word Task 1 in the DBG11B keypad only, not in SHELL.
STOP: Task 1 of the IPOS
plus®
program is stopped.
START: Task 1 of the IPOS
plus®
program is started.
STOP: Tasks 1 and 2 of the IPOS
plus®
program are stopped.
P932 IPOS CTRL
word Task 2
Display range: START / STOP
IPOS CTRL word Task 2 in the DBG11B keypad only, not in SHELL.
Display parameter, cannot be set using DBG11B.
START= Task 2 of the IPOS
plus®
program is currently being processed.
STOP = Task 2 of the IPOS
plus®
program is stopped.
P933 Jerk time
Setting range: 0.005 ... 2 s
The jerk time indicates the duration of the torque formation. The positioning time in com-
parison to the linear ramp is extended by the set jerk time.
The jerk time 0.005 ... 2 s that has to be set for the function jerk limit 2 s. Note that P911
Positioning ramp 1 / P912 Positioning ramp 2 have a greater or equal value.
P933
≤
P911 & P912
If P933 > P911 & P912, torque formation still has a trapezoidal shape with the set jerk
time not being the time for the torque formation.
P94x IPOS
plus®
encoder
P940 IPOS vari-
ables edit
Setting range: ON / OFF
IPOS
plus®
variables edit with DBG11B keypad only, not in SHELL.
The IPOS
plus®
variables can be altered when P940 = 'ON.'
P941 Source
actual position
Setting range: Motor encoder (X15) / Ext. encoder (X14)
Defines the encoder to which IPOS
plus®
positions.
Set P942 / P943
encoder factor
numerator /
denominator
Setting range: 1 ... 32767
First set the parameter P944 Encoder scaling ext . Then continue with the settings for
P942/P943.
In the event of positioning to an external encoder (X14), then these two parameters are
used for adapting the resolution to the motor encoder (X15).
Proceed as follows:
•
Write down the values of variables H510 for the external encoder and H511 Current
motor position.
•
Move the drive by about 30,000 increments (H511).
•
Calculate the difference between the values you wrote down and the new values of
the variables:
– H510 new – H510 old = H510 difference
– H511 new – H511 old= H511 difference
•
The values must not differ by more than 32 767 (2
15
–1). If the values are greater,
divide both differentials by the same number to obtain correspondingly smaller val-
ues. Alternatively, repeat the procedure with a shorter travel distance.
•
Enter the result H511 difference in P942 Encoder factor nominator and H510 in P943
Encoder factor denominator.
P6..
P60.
P600
Summary of Contents for MOVIDRIVE compact MCH41A
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