Parameter setting procedure for tension sensorless torque control
TENSION SENSOR FEEDBACK TORQUE CONTROL
143
6
The following table shows a setting example.
8
Tension command input selection
Set the following parameter according the tension input method.
The following table shows a setting example.
Item
Setting example
Tension feedback
input method
Setting by analog voltage (0 to 10 V) input through terminal 1 (
Pr.363
= "5")
Parameter setting
Pr.1136 Tension sensor feedback voltage/current bias
= 0%
Pr.1137 Tension sensor feedback bias
= 0 N
Pr.1138 Tension sensor feedback voltage/current gain
= 100%
Pr.1139 Tension sensor feedback gain
= 100 N
Pr.
Name
Setting
Input terminal
804
Tension / Torque command
source selection
0
(initial value)
Tension command by terminal 1 analog input (-10 to 10 VDC)
Tension command by terminal 6 analog input (-10 to 10 VDC)
(FR-A8AZ)
1
Tension command by the parameter setting (
Pr.365
or
Pr.366
)
2
Tension command by the pulse train command (FR-A8AL)
3
Tension command via CC-Link communication
(FR-A8NC/FR-A8NCE)
Tension command via PROFIBUS-DP communication (FR-A8NP)
4
Tension command by 12/16-bit digital input (FR-A8AX)
5
Tension command via CC-Link communication
(FR-A8NC/FR-A8NCE)
Tension command via PROFIBUS-DP communication (FR-A8NP)
6
Item
Setting example
Tension command
input method
Setting by analog voltage (0 to 10 V) input through terminal 1 (
Pr.804
= "0")
Parameter setting
Pr.868 Terminal 1 function assignment
= "3 or 4"
Pr.1402 Tension command input voltage bias
= 0%
Pr.1403 Tension command bias
= Minimum tension
Pr.1404 Tension command input voltage gain
= 100%
Pr.1405 Tension command gain
= Maximum tension
Pr.1401 Tension command increment
= "0" (0.01 N increment)
0 V
Pr.1136
(0%)
100 N
Pr.1139
0 N
Pr.1137
Analog input value
10 V
Pr.1138
(100%)
Tension feedback
Pr.1405
(Maximum tension)
Pr.1403
(Minimum tension)
0 V
Pr.1402
(0%)
Analog input value
10 V
Pr.1404
(100%)
Tension command value
Summary of Contents for A800 Plus Series
Page 240: ...239 MEMO ...
