External Reel Diameter Taper Control - Mitsubishi LE-40MTA-E Instruction Manual

7.4 External reel diameter taper control

Entering the reel diameter externally results in high precision taper
tension control.
Two methods are available to set the taper ratio as follows:
(1) Setting the taper ratio by key entry (see page 29).
(2) Setting the taper ratio externally through analog voltage.
Two methods are available to enter the taper curves as follows:
(1) Linear line taper control.
(2) Non-linear line taper control.
1. Connection
• Use the externally installed potentiometer as shown in the fig-
ure above to enter the reel diameter signal of 0V (minimum di-
ameter) to 5V (maximum diameter) to terminals AI2 or AI3.
• When the external analog input is valid, "EXT." appears on the
"DIA.MNT." ( reel diameter monitor ) screen.
2. Setting
• For setting the external reel diameter taper, select "ON" on the "TAPER" screen on the initial setting
screen or the engineer screen. Then select "EXT." ( external ) on the "TPR.DIA." ( taper reel diameter)
screen.
T A P E R
O F F
T P R . D I A .
I N T .
T A P E R
L I N E A R
• To change the reel diameter input values by the external analog input, change the data on the "AI2" or
"AI3" setting screen within "SWITCH" on the initial setting screen or the engineer screen.
A I 2
D I A .
• To change the maximum or minimum value of the reel diameter, change the data on the "DIA.SET"
screen within "REEL" on the initial setting screen or the engineer screen.
• The minimum and maximum diameters should be the machine specifications, and basically not
changed according to the material.
D I A . S E T
M I N . D I A →
S E L E C T T A P E R
: O N
Select "ON"
S E L E C T T A P E R
: E X T .
M D . S E L E C T T A P E R
: N O N - L I N E A R
S E L E C T A I 2
: S T A L L : N E W
Select "DIA"
S E T D I A M E T E R
# # # # m m φ
T E N S I O N C O
S I G N A L
Select "EXT"
M O D E
A N A L O G I N P U T
R . : T A P E R :
M A X . D I A → # # # # φ
:
30
When touch lever is used
Touch lever
Potentiometer
+5V
Detecting
AI2
diameter
AI3
100kΩ
AIC
N T R O L
• Select which taper to
use, the linear line
taper or non-linear
taper.
See the next page.
T N S N .
Reel