Change Of Control Gains - Mitsubishi LE-40MTA-E Instruction Manual

7.5 Change of control gains

The gains can be adjusted during operation. Adjust the auto-gain in the manual operation or automatic op-
eration. To perform fine adjustment, adjust the manual gain. No need to change the gain if the tension is
stable.
1. Automatic gain adjustment
• Ιn the operational condition, when the specified output is added to the
output in actual operation, the tension shows step-like changes. The
control gain can be adjusted automatically based on the response
characteristic of that tension.
Set the additive output on the automatic gain adjustment screen.
The right figure shows the operating characteristics of the automatic
gain adjustment in the manual operation.
• To execute automatic gain adjustment
(1) Operate the machine at the initial value of the control gain.
(2) Select "AUTO" on the "GAIN" screen within "Gain" on the engi-
neer screen.
G A I N
A U T O
A U T O
A U T O
P U S H
ENTER
A U T O
P U S H
A U T O
A U T O
• When errors generated during the automatic gain adjustment, add as large a torque as possible.
An error will also be generated if accurate response waveforms cannot be obtained. Adjust the
manual gain in such a case.
(3) Repeat the above steps two to three times for a higher accuracy.
S E L E C T A U T O / M A N U A L
: M A N U A L
Select "AUTO"
G T U N E S E T O F F S E T
S E T →
# # # %
• Set the additive output (percent value for the maximum output) as large as possible
on the premises it does not adversely affect the material. Press the enter key to set
the value.
• When adjusting the automatic gain, the output increases instantaneously. When
handling the material easily elongated or ruptured, set the additive output to a small
value for adjustment.
G T U N E E X E C U T E
< E N T E R > O R < C A N C E L >
G T U N E E X E C U T I N G
< C A N C E L > A T
Stand-by (for approximately 10sec)
G T U N E
G A I N T U N I N G
G A I N
O U T P U T
O U T P U T →
Additional output
A U T O G A I N T U N I N G
A U T O G A I N
S T O P
C O M P L E T E !
32
T U N I N G
# # # %
Output monitor of now
T U N I N G
Addition
Time
Time