Siemens IP-Module Manual Pagina 84

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Machine Data, Modes and Traversing Programs IP 266
Example 2:
When the drive reaches a hardware limit switch, it decelerates at the maximum
deceleration rate. This is also the case when an external Stop command is issued.
Figure 5-5. Maximum Deceleration Rate on Abort of a Traversing Movement
t
- Hardware limit switch
or external Stop
V
rev
[
mm
/
min
]
V
for
Forward acceleration
Constant speed forward
Maximum deceleration
5.1.6 Controller Parameters
Kv (servo gain) factor
The IP 266 uses a proportional-action controller (P controller) for position control.
The only parameter a P controller needs is the servo gain factor Kv. The unit for
the Kv factor is [1/s]; the value range is from 0.1 to 99.9 [1/s].
The higher the Kv factor, the better the control loop's dynamic response.
CAUTION :
An excessively high Kv factor results in
oscillation,
instability and
an impermissibly high machine load
5-12
EWA 4NEB 812 6057-02
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