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Parameter setting procedure for dancer
control function
Continued from the last page.
Set acceleration/deceleration time as
below.
(Refer to page 46)
Acceleration/
Pr. 7 Acceleration time = "0s"
Deceleration
Pr. 8 Deceleration time = "0s"
time setting
Pr. 756 First acceleration time for main
speed = "Acceleration time of the line"
Pr.757 First deceleration time for main
speed = "Deceleration time of the line"
Set Pr. 52 ="27" (monitor voltage % of
terminal 1 input).
And record,
Value when the dancer position is
at the upper limit
Value when the dancer position is
Target dancer
at the lower limit
position
Set the value obtained from
(Pr. 133)
% at upper limit - % at lower limit
setting
Pr.133=
Alternatively, move the dancer roll to
the center position, and set the
monitored value of terminal 1 input
voltage % to Pr. 133.
Operation
Adjust the gain of dancer control (PID
check
control). (Refer to page 24 )
Compensation by winding
diameter calculation
(Winding/
Unwinding shafts)
Winding
diameter
Set Pr. 763 Line speed input selection.
calculator
(Refer to page 33 )
setting
Set gear ratio with Pr. 773 Gear ratio
numerator (driver side), Pr. 774 Gear
Gear ratio
ratio denominator (follower side) when
setting
a reduction gear is installed between
rolling shaft and motor output shaft.
(Refer to page 34 )
See next page
20
Pr. 756, Pr. 757:
When cushion time is considered in main speed command, set 0s.
Upper limit %
Target position
% at
dancer roll
lowest
2
(Pr. 133)
Lower limit %
Refer to page 24 for gain adjustment of dancer control (PID control).
(Intermediate shafts)
Perform winding
diameter
compensation
Pr. 763
Line speed input signal
setting
Without line speed input signal
0
(Main speed is the line speed.)
1
Single-phase pulse train input (terminal JOG)
2
Encoder pulse train input (FR-A7AP)
3
Analog Input (Terminal 2)
4
Analog Input (Terminal 4)
5
Analog Input (Terminal 1)
6
Analog Input (FR-A7AZ Terminal 6)
7
Single-phase pulse train input (FR-A7AL)
Dancer roll
upper limit
of
Dancer roll
lower limit
POINT
Turn ON the start signal when
operation X83 is ON and main
speed = 0r/min, and move the
dancer roll up and down to
check compensation directions
of the dancer.
Do not perform
winding diameter
compensation
Set Pr. 771 r-r' limit value (diameter) =
"9999" to inactivate winding diameter
calculator. (Refer to page 38)
Test run
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