Winding Diameter Calculation Using Material Thickness (Thickness Method) - Mitsubishi Electric A800 Plus Series Function Manual

Winding diameter calculation setting
8.2.4
Winding diameter calculation using material
thickness (thickness method)
The material thickness is added up for winding diameter calculation.
First to fourth material thickness can be selected by the signal input.
Pr. Name
1231
Material thickness d1
R010
1232
Material thickness d2
R011
1233
Material thickness d3
R012
1234
Material thickness d4
R013
Selection of the thickness method (Pr.1231)
• When a value other than "9999" is set in Pr.1231, the winding diameter is calculated not from line speed but from the
addition of material thickness and number of roll rotations. (Thickness method)
• When selecting the thickness method, use an option, the FR-A8AP, FR-A8AL, or FR-A8TP, to input the encoder pulse (A/B
phase).
NOTE
• When Pr.1231 = "9999", the winding diameter is calculated from the actual line speed. (Refer to
• In the thickness method, the stored values of the initial winding diameter, material thickness, and number of roll rotations are
used for calculation. Set correct values for the initial winding diameter and the material thickness. If the setting of the initial
winding diameter is incorrect, or the actual material thickness and the material thickness setting (parameter setting) are
inconsistent, calculation errors are more likely to occur. If calculation errors occur, select the actual line speed method.
Material thickness selection (Pr.1232 to Pr.1234, X107 signal, X108
signal)
• Turn ON/OFF the Minimum/maximum winding diameter selection (X107 and X108) signals to select the material thickness
set in Pr.1232 to Pr.1234.
• For the X107 and X108 signals, assign the function by setting "107 (X107)" or "108 (X108)" in any of Pr.178 to Pr.189
(input terminal function selection).
Input signal
X107 X108
signal signal
OFF OFF Material thickness d1 (Pr.1231)
ON OFF Material thickness d2 (Pr.1232)
OFF ON Material thickness d3 (Pr.1233)
ON ON Material thickness d4 (Pr.1234)
NOTE
• By turning ON/OFF the X107 and X108 signals, the maximum and minimum winding diameters are also selected. (For the
details, refer to
• When the maximum/minimum diameter is selected using the X107 and X108 signals, or the setting in Pr.1235 to Pr.1242 is
changed, the present winding diameter may be limited and change depending on the maximum/minimum winding diameter
setting. When the maximum/minimum winding diameter setting is newly selected or changed, check that the present winding
diameter is correct. If the value changes to an unintended value, correct the present diameter by performing one of the
following actions.
- Use Pr.646 Stored winding diameter to set the present diameter.
- Perform initial winding diameter calculation.
- Turn OFF the X114 signal (restore the initial winding diameter).
166
WINDING DIAMETER COMPENSATION FUNCTION
Initial value
9999
1 mm
1 mm
1 mm
Material thickness
page 169.)
Setting
range
Set the material thickness for winding diameter
0 to 20 mm
calculation.
9999 Actual line speed method
0 to 20 mm
The material thickness can be selected using the X107
0 to 20 mm
and X108 signals.
0 to 20 mm
Maximum winding diameter / minimum winding diameter
Maximum winding diameter 1 (Pr.1235) / Minimum winding diameter 1 (Pr.1236)
Maximum winding diameter 2 (Pr.1237) / Minimum winding diameter 2 (Pr.1238)
Maximum winding diameter 3 (Pr.1239) / Minimum winding diameter 3 (Pr.1240)
Maximum winding diameter 4 (Pr.1241) / Minimum winding diameter 4 (Pr.1242)
Description
page 163.)