Mitsubishi Electric A800 Plus Series Function Manual page 68

Pr. Name
638 Line speed command added
R217 compensation value gain
650 Terminal 4 input
R270 compensation selection
∗1 The increment varies depending on the Pr.358 setting.
Added compensation through terminal 1 or 4 (Pr.73, Pr.635 to Pr.638,
Pr.650, Pr.868)
• Use terminal 1 or 4 for adding compensation for the line speed command.
• The terminal used for compensation is determined by the settings of Pr.73 Analog input selection, Pr.650 Terminal 4
input compensation selection, and Pr.868 Terminal 1 function assignment.
Line speed command input
method
Analog input
Multi-speed (NET operation (terminal))
FR-A8AX
∗2
∗1 Set Pr.28 Multi-speed input compensation selection = "1" to enable analog input compensation while the line speed is commanded
according to the multi-speed operation.
∗2 Set Pr.304 Digital input and analog input compensation enable/disable selection = "2, 3, 12, or 13" to enable analog input compensation
while the line speed is commanded using the FR-A8AX.
• The analog input value of the line speed compensation value is calibrated with Pr.635 Line speed command added
compensation value voltage/current bias, Pr.636 Line speed command added compensation value bias, Pr.637
Line speed command added compensation value voltage/current gain, and Pr.638 Line speed command added
compensation value gain. The settings are applied to the line speed command compensation value (lower limit: 0 m/min,
upper limit: 6553.4 m/min).
• When "9999" is set in any of Pr.635 to Pr.638, all the settings in Pr.635 to Pr.638 are invalid. Instead, the settings in Pr.350
to Pr.353 are applied for calibrating the compensation value. (Refer to
NOTE
• The difference between the setting values of Pr.635 and Pr.637 can be set within 5%. (Even if the difference is 5% or less,
Er3 (calibration error) does not occur.)
• The Pr.635 setting can be larger than the Pr.637 setting. Also, the Pr.636 setting can be larger than the Pr.638 setting.
• The compensation is invalid when it is input through the terminal specified for the line speed command input.
Initial value Setting range
0 to 6553.4 m/min
9999
9999
0
0
1
Add compensation
signal input terminal
Terminal 4
∗1
Terminal 1
Line speed command compensation input (m/min)
Pr.638
Pr.636
Pr.635 Pr.637
DANCER FEEDBACK SPEED CONTROL
Dancer feedback speed control details
Description
, Set the gain line speed compensation value for
∗1
analog input.
The compensation input through terminal 4 is
disabled.
The compensation value is input through terminal 4.
Add compensation signal input terminal selection
Pr.73 setting Pr.650 setting
1
Other than 4, 5, 14,
15
Other than 1
Analog input value (%)
page 64.)
Pr.868 setting
─
0
3
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