Mitsubishi Electric A800 Plus Series, Function Manual

Page: 115 / 242

Parameter setting procedure for tension sensorless torque control
114
TENSION SENSORLESS TORQUE CONTROL
The following table shows a setting example.
8
Actual line speed input
Use Pr.362 to select the input terminal for actual line speed.
∗1 To perform Vector control, install the Vector control compatible option.
∗2 The input specification in the initial setting is indicated. (Refer to page 43 .)
The following table shows setting examples.
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)
Pr. Name Setting Input terminal
362 Actual line speed input selection
0 (initial value) V* (line speed command)
1
Terminal JOG single-phase pulse train input (Refer to page
164 )
2
FR-A8AP/FR-A8AL/FR-A8TP encoder pulse train input
(complementary 12 V / differential 5 V (A-, B-phases))
∗1
(Refer to page 164 )
3
Terminal 2 (analog value: 0 to 100%) (0 to 5 VDC)
∗2
(Refer to
page 165 )
4
Terminal 4 (analog value: 20 to 100%) (4 to 20 mADC)
∗2
(Refer to page 165 )
5
Terminal 1 (analog value: -100 to 100%) (0 to
±
10 VDC)
∗2
(Refer to page 165 )
6
Terminal 6 (FR-A8AZ) (analog value: -100 to 100%) (0 to
±
10
VDC)
∗2
(Refer to page 165 )
7
FR-A8AL single-phase pulse train input (PP, NP) (Refer to
page 164 )
9999 No function
Item Setting example 1 Setting example 2
Actual line
speed input
method
Setting by analog current (4 to 20 mA) input
through terminal 4 (
Pr.362 = "4")
Setting by pulse train input through terminal JOG
(
Pr.362 = "1")
Parameter
setting
Pr.280 Actual line speed voltage/current bias =
20%
Pr.281 Actual line speed bias = 0 m/min
Pr.278 Actual line speed voltage/current gain =
100%
Pr.279 Actual line speed gain = Maximum line
speed
Pr.384 Input pulse division scaling factor
≠
"0"
Pr.281 Actual line speed bias = 0 m/min
Pr.282 Actual line speed pulse input bias = 0 kpps
Pr.279 Actual line speed gain = Maximum line
speed
Pr.283 Actual line speed pulse input gain =
Maximum number of pulses
Pr.1405
(Maximum tension)
Pr.1403
(Minimum tension)
0 V
Pr.1402
(0%)
Analog input value
10 V
Pr.1404
(100%)
Tension command value
Pr.279
(Maximum line speed)
Pr.281
(0 m/min)
4 mA
Pr.280
(20%)
Analog input value
20 mA
Pr.278
(100%)
Actual line speed
Pr.279
(Maximum line speed)
6553.4
Pr.281
(0 m/min)
Pr.282
(0 kpps)
Number of input pulses
Pr.283
(Maximum number
of pulses)
Actual line speed