29
The figure on the right shows the tension characteris-
tics in the taper control by calculating internal reel diam-
eter. This figure assumes that the actuator torque is
proportional to the control output.
When calculating the internal reel diameter, the calcu-
lation is based only on the torque control output. Al-
though the reel diameter input is not necessary in this
control, the taper control accuracy is lower than the
control by the external reel diameter input.
Enter the reduction rate from the set tension as the
taper ratio.
Since the torque control output is not zero at the start of
winding, the target tension for the minimum diameter
differs from the set tension.
• For setting the internal reel diameter taper, select "ON" on the "TAPER" screen on the initial setting
screen or the engineer screen. Then, select "INT.” ( internal ) on the "TPR.DIA.” ( taper reel diameter)
screen.
• Two methods are available to set the taper ratio as follows:
Setting by key entry on the operator screen (standard)
Setting by external analog input (see page 39.)
• Use the "TAPER SET" screen on the operator screen to set the taper ratio by key entry.
The "Target" value in which the taper ratio is taken can be confirmed on the "TNSN.MNT.” ( tension mon-
itor ) screen of the operator screen.
Internal reel diameter taper control
0.2
0.4
0.6
0.8
1.0
Taper ratio τ=0%
τ=25%
τ=80%
F (Target tension)
F
0 (Setting tension)
D (Current diameter)
D
max (Maximum diameter)
Dmax = 2
TR (Rated actuator torque)
Fs (Full-scale tension)
1. Selection of internal reel diameter
T P E R S E L E C T T A P E R T E N T RN S I O N C O O L
O F F : O N
A
T R . D I A . S E L E C T T A P E R S I G N A L
I N T . : E X T .
P
Select "ON"
Select "INT"
T
2. Setting of taper ratio
O U T P U T → # # # %
T P E R S E T
S E T → # # # %
A T N S N . → # # # # N
T P E R S E T
S E T → # # # %
A
3. Display
T S N . M N T .
T A R G E T → # # # . # × 10 N →
N
T S N . M N T .
T A R G E T → # # # # N →
N
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