Mitsubishi LE-40MTA-E, Instruction Manual

Page: 35 / 58

31
• When the non-linear taper "LINEAR" is selected, the sys-
tem enters in the linear line taper mode. The control takes
place according to the taper ratio on the panel or to the
taper ratio determined by the external controller, whichev-
er is larger.
The taper ratio entered is the reduction rate from the set
tension.
• The tension characteristics appears to be linear against
the reel diameter signals as shown in the right figure.
• To set the taper ratio by key entry, use the taper set screen
on the operator screen. For the taper ratio setting by the
external controller, see page 38.
• When the non-linear line data is set through the pan-
el, the taper tension control takes place as follows:
Set the taper data as follows:
Corner 1 < corner 2 < corner 3 < corner 4
• When the 4-stage non-linear line taper control is not
necessary, for instance, when the tension is con-
stant from the minimum diameter to corner 1 and the
linear line taper is given from corner 1, set the taper
as shown in the right figure (Corner 1, Taper 1) (Cor-
ner 2, Taper 2). The linear line taper control may
take place from corner 1 to corner 2.
Set the data as follows:
corner 1
≥
Dmin, corner 2
≥
Dmax
Not necessary to set data to corners 3 and 4.
The "TARGET" value in which the taper ratio is taken can be confirmed on the "TNSN.MNT.” ( tension
monitor ) screen of the operator screen.
3. Linear line taper
Setting tension
T
ens
io
n
Target tension
Portion of
decrease due
Minimum
diameter
Maximum
diameter
Reel diameter
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
„ „ „ „ „ „ „ „ „ „ „ „ „ „ „ „
4. Non-linear line taper
Taper 1 Setting tension
Portion of decrease
due to taper4
Corner
1
Reel diameter
Reel diameter
Tens
io
n
Tens
io
n
Taper 2
Taper 3
Taper 4
Target
tension
Corner
2
Corner
3
Corner
4
Taper 1
Corner
1
Taper 2
Corner
2
Portion of decrease
due to taper4
Setting tension
Minimum
diameter
Maximum
diameter
Target
tension
X
W
% : C N R 2 # # # # m m
φ →
T P E R S E T
„
C N R 1 # # # # m m
φ →
T P R . 1 # # #
A
„ „ „ „ „ „ „ „ „ „ „ „ „ „ „ „
% : C N R 4 # # # # m m
φ →
T P E R S E T
T P R . 3 # # #
A „ „ „ „ „ „ „ „ „ „ „ „ „ „ „ „
%
„
T P R . 4 # # #
5. 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
„ „ „ „ „ „ „ „ „ „ „ „ „ „ „ „
„ „ „ „ „ „ „ „ „ „ „ „ „ „ „ „