Setting Procedure Of Pm Sensorless Vector Control (Position Control) - Mitsubishi Electric FR-A800 Series Instruction Manual

5.5.3 Setting procedure of PM sensorless vector control
(position control)
PM PM PM
Operating procedure
1.
Perform IPM parameter initialization. (Refer to
Set "3003 or 3103" in Pr.998 PM parameter initialization or select "3003" in "
settings).
Setting
3003
3103
2.
Select the control mode (Pr.800). (Refer to
Set Pr.800 = "13" (position control) or "14" (speed/position switchover) to enable position control.
3.
Select the position command source (Pr.419).
• For position command given by point table, set Pr.419 = "0 (initial value), 10, 100, or 110" to set the positioning
parameters (Pr.465 to Pr.494, Pr.1222 to Pr.1281). (Refer to
• For position command given by inverter pulse train input, set Pr.419 = "2" to select a pulse train type for
commands (Pr.428). (Refer to
• For position command given from the positioning module of the programmable controller, set Pr.419 = "1" to
select a pulse train type for commands (Pr.428). (Refer to
4.
Perform the test operation.
As required
• Set the electronic gear. (Refer to
• Set the position adjustment parameters. (Refer to
• Adjust the position control gain. (Refer to
• Set the torque limit. (Refer to
NOTE
• The carrier frequency is limited during PM sensorless vector control. (Refer to
• Position deviation may occur due to motor temperature changes. In such case, shut off the inverter outputs, and restart.
• Perform position control under PM sensorless vector control only when using an MM-CF IPM motor with low-speed range high-
torque characteristic (Pr.788 = "9999 (initial value)")
• Position control is performed on the assumption of 4096 pulses/motor rotation.
The positioning accuracy is 200 pulses/rev for 1.5K or lower, and 100 pulses/rev for 2K or higher (under no load).
• To perform operation in position control mode, the Pre-excitation/servo ON (LX) signal needs to be turned ON. To assign the
LX signal, set "23" in any of Pr.178 to Pr.189 (Input terminal function selection).
302
5. PARAMETERS
5.5 Position control under vector control and PM sensorless vector control
Downloaded from ManualsNet.com
Parameter settings for MM-CF IPM motor (rotations per minute)
Parameter settings for MM-CF IPM motor (frequencies)
page
page 325.)
page
page 245.)
search engine
page 230.)
Description
page 221.)
page
319.)
page 316.)
page 327.)
328)
" (IPM parameter initial
303.)
page 356.)