7-44
Operating Modes
MPH-02, MPB-02, MPD-02
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
The maximum deceleration is specified by parameter
P-0-4063,
Positioning block deceleration
.
Note:
When P-0-4063 was parameterized with value "0", the warning
E2048 Interpolation acceleration = 0
is generated.
CAUTION
Property damage!
If the acceleration or deceleration values are equal to
zero, the drive can no longer brake. The specified target
is never reached or overrun.
⇒
Set acceleration value > 0
Note:
Further limitation takes place by the value of parameter
S-0-0138, Bipolar acceleration limit value
because this limit
value takes effect in all operating modes with position control.
In the "positioning block" mode the position command value can be
filtered at the output of the positioning generator. The filter order of the
(moving) average filter available to do this (cf. P-0-0041 and P-0-0042) is
calculated on the basis of the preset positioning acceleration or the
positioning jerk.
This means that the parameterized acceleration or deceleration only
become effective after t = P-0-0042 * T
A,position
.
Note:
In this case, T
A,position
is the cycle time of the position loop or
the positioning generator. Therefore, the cycle time to be used
is different according to the control performance (advanced:
250 µs, basic: 500 µs).
4009
0
4008
-
0
-
0042
0
−
−
=
−
−
P
P
P
- or -
4009
0
4063
-
0
-
0042
0
−
−
=
−
−
P
P
P
Note:
With value equal zero in parameter P-0-4009 the smoothing
filter is switched off, i.e. the desired acceleration or
deceleration is immediately reached.
Effective Acceleration and
Deceleration
Jerk Limitation by Jerk Filter
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
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▪
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▪
(800)
426-5480
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www.cmafh.com