Control block diagram
43
3
3.3.1
Analog input signals and pulse train input
signals
• Refer to the following table and set the parameters to input the signals.
• For analog input terminals, calibration is available with maximum and minimum input values. Either voltage or current
signals are input through terminal 2 and terminal 4. Always calibrate the terminal after changing the input specification. For
details on selecting the input specification and calibrating input values, refer to the FR-A800 Instruction Manual (Detailed).
NOTE
• The
Pr.361 to Pr.364
(dedicated function selection) and
Pr.1285
settings have higher precedence over the other assigned
terminal settings such as
Pr.868, Pr.858
, and
Pr.406
. (Example: When
Pr.363
="5", and
Pr.868
="0", terminal 1 is set to the
dancer signal input.)
• While tension sensorless torque control is valid, the following parameter settings are invalid:
Pr.361 Line speed command
input selection
,
Pr.363 Dancer / tension sensor feedback input selection
, and
Pr.364 Dancer tension setting input
selection
.
• The dedicated function parameters take the following precedence over each other. When two or more signals are assigned to
a terminal, a signal with lower precedence is ineffective.
Dancer signal input (
Pr.363
) > Actual line speed input (
Pr.362
) > Tension command input (
Pr.804
) > Line speed command
input (
Pr.361
≠
0) > Taper setting input (
Pr.1285
) > Dancer tension setting input (
Pr.364
) > Line speed command
compensation input > Line speed command input (
Pr.361
=0) = Speed command during speed control
• When
Pr.361 Line speed command input selection
="0" while tension sensorless torque control is valid, the line speed
command is input in the same way as the frequency command.
Parameter
Analog input
Refer to page
Terminal 1
(-10 to 10 V)
Terminal 2
(0 to 5 V)
Terminal 4
(4 to 20 mA)
Terminal 6
(-10 to 10 V)
Pr.363 Dancer / tension sensor
feedback input selection
5
3
4
6
Pr.361 Line speed command
input selection
5
3
4
6
Pr.362 Actual line speed input
selection
5
3
4
6
Pr.1285 Taper setting analog
input selection
5
3
4
6
Pr.364 Dancer tension setting
input selection
5
3
4
6
Parameter
Single-phase pulse train input
Encoder pulse
Parameter
input (Pr.360)
Refer to page
Terminal JOG
FR-A8AL
Pr.363 Dancer / tension sensor
feedback input selection
—
—
—
—
Pr.361 Line speed command
input selection
1
7
2
8
Pr.362 Actual line speed input
selection
1
7
2
—
Pr.1285 Taper setting analog
input selection
—
—
—
—
Pr.364 Dancer tension setting
input selection
—
—
—
—
∗1
The FR-A8AZ plug-in option is required.
—
: Setting not available
∗2
The FR-A8AP/FR-A8AL plug-in option or the FR-A8TP control terminal option is required.
∗3
The setting is valid when
Pr.291
="1, 11, 21, or 100".
Summary of Contents for A800 Plus Series
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