Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 562

NOTE
• When the orientation command turns OFF while the start signal is ON, the speed accelerates to the command speed.
• If hunting of the motor shaft occurs during orientation stop, set a larger value in Pr.354 or a smaller value in Pr.352 to prevent it.
Main spindle speed (encoder)
Start signal (STF, STR)
Orientation command (X22)
Current position signal
DC injection brake
Orientation complete signal (ORA)
 Orientation from the stop status (under V/F control, Advanced magnetic
flux vector control)
• Turning ON the start signal after turning ON the Orientation command (X22) signal increases the motor speed to the Pr.351
Orientation speed, and then the same orientation operation is performed as the operation shown in "Orientation at the
running status".
• Note that the DC injection brake operates without increasing to the orientation speed if the position signal is within the DC
injection brake start position.
Main spindle speed (encoder)
Start signal (STF, STR)
Orientation command (X22)
Orientation complete signal (ORA)
Orientation
speed
Creep switchover position
Creep
speed
Pr.351
Pr.352
0
OFF
Origin signal
Pr.351
Pr.352
OFF
OFF
DC injection brake
Position loop
Home position
Orientation stop position command
DC injection brake
Position loop switchover position
Orientation speed (set with Pr.351)
Creep speed (set with Pr.352)
1)
2)
3) 4)
ON
DC injection
brake start
position
(set with Pr.355)
OFF
5)
OFF
Orientation speed (orientation switchover speed)
Creep speed (orientation deceleration ratio)
ON
ON
OFF
ON
OFF
ON
Time
OFF
ON
OFF
Creep switchover position
(set with Pr.353)
Position loop switchover
(set with Pr.354)
Stop position command
OFF
ON
OFF
ON
Time
OFF
OFF
OFF
OFF
5. PARAMETERS
5.14 (A) Application parameters
1
2
3
4
5
6
7
8
9
10
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