Tension sensor feedback speed control details
TENSION SENSOR FEEDBACK SPEED CONTROL
107
4
Tension feedback calibration example
• The following parameters are used for calibrating the terminals which the tension feedback is input via. The tension
feedback analog input values at both 0% and 100% can be calibrated.
∗1
The initial input range is 20 to 100%.
• In the following example, a tension sensor in capacity from 0 to 10 V output is used for inputting the tension feedback value
through terminal 1 (input range: -10 to 10 V). This example defines the minimum tension as 0% and the maximum tension
as 100% for calibration.
C13(Pr.917) Terminal 1 bias (speed) and Terminal 1 gain (speed)
are used as calibration
parameters.
NOTE
• For the details of
C3 (Pr.902)
,
C4 (Pr.903)
,
C6 (Pr.904)
,
C7 (Pr.905)
,
C13 (Pr.917)
, and
C15 (Pr.918)
, refer to the FR-A800
Instruction Manual (Detailed).
Tension feedback input filter (Pr.1227)
• Use
Pr.1227 Dancer / tension sensor feedback input filter time constant
to set the primary filter for the tension
feedback input value.
4.5.2
Tension feedback detection
A signal is output while the tension feedback value maintains the specified normal level.
Tension feedback detection (Pr.423, Y235 signal)
• The Dancer position / tension feedback detection (Y235) signal is output while the tension feedback value is within the
range set in
Pr.423 Dancer / tension sensor feedback detection level
around the set point.
• For the Y235 signal, set "235 (positive logic) or 335 (negative logic)" in one of
Pr.190 to Pr.196 (output terminal function
selection)
to assign the function to the output terminal.
Input terminal
Calibration parameter
Terminal 2 (0 to 100%)
C3 (Pr.902)
,
C4 (Pr.903)
Terminal 4 (0 to 100%)
C6 (Pr.904)
,
C7 (Pr.905)
Terminal 1 (-100 to 100%)
C13 (Pr.917)
,
C15 (Pr.918)
Terminal 6 (FR-A8AZ) (-100 to 100%)
C31 (Pr.926)
,
C33 (Pr.927)
Pr.
Name
Initial value
Setting
range
Description
423
R422
Dancer / tension sensor
feedback detection level
10%
0 to 100%
Set the scope of normal value for tension feedback.
Define the percentage of deviation with respect to the
set point.
0 to 10 V
100%
0 V (0%)
C13 (Pr.917)
Analog input value
10 V (100%)
C15 (Pr.918)
Tension feedback
Tension sensor
Summary of Contents for A800 Plus Series
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