Mitsubishi Electric A800 Plus Series Function Manual page 166

Pr.281 < Pr.279, and Pr.282 < Pr.283
Actual line speed (m/min)
6553.4
Pr.279
Pr.281
0
Pr.281 < Pr.279, and Pr.282 > Pr.283
Actual line speed (m/min)
6553.4
Pr.279
Pr.281
0
Actual line speed analog input (Pr.362 = "3 to 6", Pr.278 to Pr.281)
• The actual line speed can be input by analog input.
• The analog input value of the actual line speed is calibrated with Pr.278 Actual line speed voltage/current gain, Pr.279
Actual line speed gain, Pr.280 Actual line speed voltage/current bias, and Pr.281 Actual line speed bias. The
calculation result is applied as the line speed command value (lower limit: 0 m/min, upper limit: 6553.4 m/min).
• When "9999" is set in any of Pr.279 to Pr.281, the settings for the corresponding line speed command (Pr.350 to Pr.353)
are applied for calibration. (Refer to
NOTE
• The difference between the setting values of Pr.278 and Pr.280 can be set within 5%. (Even if the difference is 5% or less,
Er3 (calibration error) does not occur.)
• The Pr.280 setting can be larger than the Pr.278 setting. Also, the Pr.281 setting can be larger than the Pr.279 setting.
Sampling time for winding diameter calculation (Pr.1245)
• For winding diameter calculation using actual line speed, use Pr.1245 Sampling time for winding diameter calculation
to set how often the winding diameter calculation result is applied.
• When Pr.1245 = "9999", a sampling time is about 5 ms for winding diameter calculation.
NOTE
• When the thickness method is selected, the Pr.1245 setting is invalid and a sampling time is about 5 ms.
(Refer to page 166.)
• The sampling time in Pr.1245 is valid also for pulse train input of the line speed command (when Pr.361 = "2 or 7").
(Refer to page 60.)
Input pulse
Pr.282 Pr.283
(kpps)
Pr.282 Input pulse
Pr.283
(kpps)
page 60.)
Actual line speed (m/min)
6553.4
Pr.279
Pr.281
Pr.280
WINDING DIAMETER COMPENSATION FUNCTION
Winding diameter calculation setting
Pr.281 > Pr.279, and Pr.282 < Pr.283
Actual line speed (m/min)
6553.4
Pr.281
Pr.279
0
Pr.282
Pr.281 > Pr.279, and Pr.282 > Pr.283
Actual line speed (m/min)
6553.4
Pr.281
Pr.279
0
Pr.283
Analog input value (%)
Pr.278
Input pulse
Pr.283
(kpps)
Pr.282 Input pulse
(kpps)
165
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