Mitsubishi Electric FR-A820-00046 Instruction Manual page 371

Parameters
Position
command
Point table No. 2
speed
20 Hz
Position feed
7000
length
0
Servo ON
(LX)
STF
RM
ON
Fig. 5-63: Positioning operation by point tables
Return to home position during point table positioning
● Home position return is performed to match the command coordinates with the machine coor-
dinates.
● The returned home position can be set as point 0, and positioning operation is available using this.
● Home position return procedure
Set parameters related to home position return.
– Set the home position return method (Pr. 1282).
– Set the speed for home position return operation (Pr. 1283).
– Set the creep speed for home position return operation (Pr. 1284).
– Set the home position return shift amount if necessary (Pr. 1286 × 10000 + Pr. 1285).
– Set the post proximity dog travel distance if necessary (Pr. 1288 × 10000 + Pr. 1287).
Turn OFF all point table selections.
– Turn OFF all RH, RM, RL and REX signals.
Turn ON the Pre-excitation/servo ON (LX) signal.
Turn ON the start signal (STF or STR).
– Home position return is performed according to the settings.
NOTES The setting values of the point table 1 are used as acceleration/deceleration time.
After turning ON the start signal, only the setting values of Pr. 1283 "Home position return speed"
or Pr. 1284 "Home position return creep speed" can be changed.
FR-A800
Position control under vector control and PM sensorless vector control
Point table No. 3 Point table No. 4 Point table No. 2
10 Hz
5 Hz
3000 6000
7000 10000 16000
ON
ON
Point table No. 3 Point table No. 4
20 Hz
10 Hz
7000 -13000
23000 10000
Point table No. 2 Point table No. 3
20 Hz
5 Hz
10 Hz
6000 7000 -13000
16000 23000
Time
10000
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