Manual Span Adjustment; Low Excitation When Turning Off The Output; Extension Screen Setting (Addition Of Operation Mode Screen) - Mitsubishi LE-30CTN Instruction Manual

7. Setting Items and Functions
7.2.2

Manual span adjustment

• When an error message "OVERLOAD", "UNBALANCE", or "LESS LOAD" may appear and tuning may not
be completed after the auto span tuning, the span can be manually adjusted.
• When the load at span tuning is "Wt" and the displayed load is "Wd", set the following correction value.
• Manual span correction value = ( Wt / Wd ) × 100 %
• When the auto zero tuning or auto span tuning is performed, the correction value will be reset to 100%.
• Setting range - - - - - - 50 to 300 %- - - - - Initial value = 100 %
• Setting screen
Caution : After the manual span adjustment, test run can be performed. However, at this status,
7.3

Low excitation when turning OFF the output

• Even if the control output is turned OFF by the output ON/OFF key(14) on the panel or the input contact
signal having the output ON/OFF function, this signal (weak excitation signal) will not completely drop the
output to zero, but will weakly excite the powder clutch/brake.
• Low excitation is effective to the starting torque at a low speed or to improvement the torque when starting.
• When the material is removed, low excitation will be output so that the reel can be rotated (5 to 10%
normally).
• Setting range
• Low excitation setting - - - - - 0 to 50 %- - - - - - Initial value = 0 %
• Setting screen
7.4

Extension screen setting (Addition of operation mode screen)

• Normally, adjustment item setting screens can be displayed in the adjustment mode only. However, by
setting the extension screen, up to 2 adjustment item setting screens can be added to the operation mode
screens, thus can be displayed in the normal operation mode.
• Screens having an adjustment item number can be set to the extension screens, and can be displayed in
the operation mode.
• Set the item number using the setting dial(16) and then press the [SET] key. The adjustment item setting
screen corresponding to the set item number can be set as a extension screen.
• When the corresponding screen is already set, the setting will be displayed as "UNAVAIL" (0).
• Setting screen
• Press the
added, use the screen selection keys(6) to switch the displayed screen.
• On the bottom line of the extension screen, pictograms showing the functions of the function keys will
appear.
38
- - - - - - - - - Item number : 23
the control accuracy may not be ensured, or the tension detector may be overloaded.
For this reason, be sure to check the error message, and solve the problem. After that,
when the auto span adjustment is completed, restart to operation.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Item number : 31
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Item number : 52
1
F4
function key to display the extension screen in the operation mode. When 2 screens are
7.3 Low excitation when turning OFF the output