Model Le-40Md Reel Diameter Calculation Unit - Mitsubishi LE-40MTB-E Instruction Manual

9.5 Model LE-40Md reel diameter calculation unit

Used with the LE-40MTB-E tension controller, the LE-40MD reel diameter calculation unit enhances the
functions during the reel shaft control.
The LE-40MD reel diameter calculation unit, using the rate calculation method based on the reel shaft pulse
and the measure roll pulse, detects the reel diameter without contacting mechanically.
The unit also detects the line speed and measures length to output the command for the reel shaft rotational
speed and timing detection signals together with the reel diameter information.
• Based on the reel diameter data, high-precision taper tension control ( linear line and non-linear line
taper tension control ) commensurate with the reel diameter is avaiable.
• By output ouf the reel shaft rotational speed, constant- slip control of the winding powder clutch be-
comes available.
• According to the output of the four- point timing detection including peripheral velocity synchronization
(rell diameter or length measurement) and the new shaft pre-drive output, two-reel switchover control
can be done reratively easily.
• The electronics gear function extends the range of selection of pulse encoder for measure pulse, giving
more freedom to the mechanism design.
For details of the setting, see the instruction manual for LE-40MD reel diameter calculation unit.
When the LE=40MD is not connected
The set menu shown below is valued when the LE-40MD is used together. Make sure to set the pre-
drive time to "0" using the "PDRV SET" screen within "40MD" on the engineer screen when the LE-40MD
is not used. Set the pre-drive time to "0" also when the multi-reel changeover is not preformed even if
the LE=40MD in used.
P D R V
P D
S E T S E T P R E D R I V E
→
T I M E R # # # S e c
( Predrive setting screen )
P A R A M E T E R
→
: P D B I A S
43
# # # %