Mitsubishi Electric A800 Plus Series Function Manual page 165

Winding diameter calculation setting
Actual line speed input selection (Pr.362)
• Use Pr.362 Actual line speed input selection to select the input method for actual line speed to perform winding diameter
calculation.
• When material thickness is set to Pr.1231 Material thickness d1 (Pr.1231 ≠ "9999"), calculate winding diameter not from
line speed but from the product of material thickness and number of rotations of a roll. (Refer to
Pr.362
setting
0 (initial value) V* (line speed command)
1 Terminal JOG single-phase pulse train input
FR-A8AP/FR-A8AL/FR-A8TP encoder pulse train input
2
(complementary 12 V / differential 5 V (A-, B-phases))
3 Terminal 2 (analog value: 0 to 100%) (0 to 5 VDC)
4 Terminal 4 (analog value: 20 to 100%) (4 to 20 mADC)
5 Terminal 1 (analog value: -100 to 100%) (0 to ±10 VDC)
Terminal 6 (FR-A8AZ) (analog value: -100 to 100%) (0 to ±10
6
VDC)
∗3
7 FR-A8AL single-phase pulse train input (PP, NP)
9999 No function
∗1 When Pr.362 = "9999" (no function), the line speed command is regarded as zero.
∗2 When Pr.362 = "2", use Pr.862 to select the option used for the actual line speed input. (Refer to
∗3
The input specification in the initial setting is indicated.
NOTE
• The priorities of the input signals are defined as follows. If the input method for a signal is the same as that for the input signal
with higher priority, the signal with lower priority does not work.
Dancer signal input (Pr.363) > Actual line speed input (Pr.362) > Tension command input (Pr.804) > Line speed command
input (Pr.361 ≠ "0") > Taper setting input (Pr.1285) > Dancer tension setting input (Pr.364) > Line speed command
compensation input > Line speed command input (Pr.361 = "0")
Actual line speed unit (Pr.358)
• Use Pr.358 Line speed unit to select the unit of the line speed.
Commanded line speed
Pr.358 setting
0 (initial value) m/min
1 m/s
2 mm/min
3 mm/s
Actual line speed input by pulse train input (Pr.362="1, 2, 7", Pr.279,
Pr.281 to Pr.284)
• The actual line speed can be input using single phase pulse train input through terminal JOG, encoder pulse train input
through FR-A8AP/FR-A8AL/FR-A8TP, or single phase pulse train input through FR-A8AL (PP, NP).
• The number of pulses is calculated internally as follows.
Pr.362 setting
1 Terminal JOG single-phase pulse train input
FR-A8AP/FR-A8AL/FR-A8TP encoder pulse input
2
Single-phase pulse train input through FR-A8AL (PP,
7
NP)
∗1
∗1
Use Pr.428 Command pulse selection to set the pulse train type. (Refer to
∗2 To perform Vector control, install the Vector control compatible option.
• The actual line speed input by pulse train input is calibrated with Pr.279 Actual line speed gain, Pr.281 Actual line speed
bias, Pr.282 Actual line speed pulse input bias, and Pr.283 Actual line speed pulse input gain. The calculation result
is applied as the actual line speed input value (lower limit: 0 m/min, upper limit: 6553.4 m/min).
• When "9999" is set in any of Pr.279 or Pr.281 to Pr.283, the settings for the corresponding line speed command (Pr.351, or
Pr.353 to Pr.355) are applied for calibration. (Refer to
• For the actual line speed input using pulse train, use Pr.284 Actual line speed input filter time constant to set the time
constant of primary delay filter for pulse train input. When Pr.284 = 0 s, the filter is not set.
164
WINDING DIAMETER COMPENSATION FUNCTION
Actual line speed input method
∗1
monitoring
m/min
m/s
mm/min
mm/s
Pulse train input
Input value calibration
parameter
—
Pr.279, Pr.281 to Pr.283
∗2
Pr.279, Pr.281 to Pr.283
Pr.278 to Pr.281
∗3
Pr.278 to Pr.281
∗3
Pr.278 to Pr.281
∗3
Pr.278 to Pr.281
Pr.279, Pr.281 to Pr.283
—
Actual line speed
monitoring
Number of pulses calculated internally
Number of input pulses/Pr.384
∗2
Time-averaged number of input pulses using Pr.1245
Sampling time for winding diameter calculation.
page 60.)
page 60.)
page 166.)
page 194.)
Line speed setting in
parameters
m/min
m/s
mm/min
mm/s