Dancer feedback speed control details
67
3
∗1
The increment varies depending on the
Pr.358
setting.
Added compensation through terminal 1 or 4 (Pr.73, Pr.635 to Pr.638,
Pr.650, Pr.868)
• Use terminal 1 or 4 for adding compensation for the line speed command.
• The terminal used for compensation is determined by the settings of
Pr.73 Analog input selection
,
Pr.650 Terminal 4
input compensation selection
, and
Pr.868 Terminal 1 function assignment
.
∗1
Set
Pr.28 Multi-speed input compensation selection
= "1" to enable analog input compensation while the line speed is commanded
according to the multi-speed operation.
∗2
Set
Pr.304 Digital input and analog input compensation enable/disable selection
= "2, 3, 12, or 13" to enable analog input compensation
while the line speed is commanded using the FR-A8AX.
• The analog input value of the line speed compensation value is calibrated with
Pr.635
Line speed command added
compensation value voltage/current bias
,
Pr.636
Line speed command added compensation value bias
,
Pr.637
Line speed command added compensation value voltage/current gain
, and
Pr.638
Line speed command added
compensation value gain
. The settings are applied to the line speed command compensation value (lower limit: 0 m/min,
upper limit: 6553.4 m/min).
• When "9999" is set in any of
Pr.635 to Pr.638
, all the settings in
Pr.635 to Pr.638
are invalid. Instead, the settings in
Pr.350
to Pr.353
are applied for calibrating the compensation value. (Refer to
NOTE
• The difference between the setting values of
Pr.635
and
Pr.637
can be set within 5%. (Even if the difference is 5% or less,
Er3 (calibration error) does not occur.)
• The
Pr.635
setting can be larger than the
Pr.637
setting. Also, the
Pr.636
setting can be larger than the
Pr.638
setting.
• The compensation is invalid when it is input through the terminal specified for the line speed command input.
638
R217
Line speed command added
compensation value gain
9999
9999
Set the gain line speed compensation value for
analog input.
650
R270
Terminal 4 input
compensation selection
0
0
The compensation input through terminal 4 is
disabled.
1
The compensation value is input through terminal 4.
Line speed command input
method
Add compensation
signal input terminal
Add compensation signal input terminal selection
Pr.73 setting
Pr.650 setting
Pr.868 setting
Analog input
Multi-speed (NET operation (terminal))
FR-A8AX
Terminal 4
Other than 4, 5, 14,
15
1
─
Terminal 1
Other than 1
0
Pr.
Name
Initial value
Setting range
Description
Pr.635
Pr.637
Pr.636
Pr.638
Analog input value (%)
Line speed command compensation input (m/min)
Summary of Contents for A800 Plus Series
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