9-6
Extended Drive Functions
MPH-02, MPB-02, MPD-02
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
•
By registering a measured value trigger within the "expectation
window" the value in parameter
P-0-0224, Probe, number of marker
failures
is cleared.
Note:
The "expectation window" cannot be used with "time
measurement"!
The limitation values for the "expectation window" are set in the following
parameters:
•
P-0-0204, Start position for active probe
•
P-0-0205, End position for active probe
The "expectation window" has to cover a minimum range so that at least
on actual position value generation can take place within the window after
the probe signal edge has been detected:
t
v
P
P
s
∆
∗
≥
−
−
−
−
−
=
max
min
)
0204
0
(
)
0205
0
(
s
min
:
minimum value of "expectation window"
P-0-0204:
start position for active probe
P-0-0205:
end position for active probe
v
max
:
maximum velocity of the axis with activated measured value
detection (select time reference of v-unit as
∆
t–unit!)
∆
t:
0.5*10
-3
s for basic performance (see P-0-0556)
0.25*10
-3
s for advanced performance (see P-0-0556)
Fig. 9-2:
Determining the minimum value for the "expectation window"
In the case of modulo scaling of the position data, a maximum value for
the "expectation window" mustn’t be exceeded as otherwise it exceeds
the modulo value range and therefore is without effect:
min
max
)
0103
0
(
s
S
s
−
−
−
=
s
max
:
maximum value of "expectation window"
s
min
:
minimum value of "expectation window"
S-0-0103:
modulo value
Fig. 9-3:
Determining the maximum value for the "expectation window"
Notes on Commissioning
Make the following settings in
S-0-0169, Probe control parameter
:
•
evaluation of probe signal edge as measured value trigger
•
select enabling mode of probe (single measurement or continuous
measurement)
Make further settings in
P-0-0226, Probe, extended control word
:
•
activation of expectation window and failure monitor
•
activation of time measurement
•
probe
selection
Select measuring signals from
S-0-0428, Probe, IDN list signal
selection
; enter the selected parameters in:
•
S-0-0426, Signal select probe 1
•
S-0-0427, Signal select probe 2
Setting the Expectation Window
Presettings
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
▪
Hydraulic
▪
Pneumatic
▪
Electrical
▪
Mechanical
▪
(800)
426-5480
▪
www.cmafh.com
