Mitsubishi Electric FR-A820-00046 Instruction Manual page 733

Parameters
Main spindle speed (encoder)
Orientation command (X22)
Orientation completion signal
Fig. 5-251:
Orientation from the stop status (V/F control, Advanced magnetic flux vector control)
● Turning ON the start signal after turning ON the orientation command (X22) will increase the
motor speed to the Pr. 351 "Orientation speed", and then orientation operation will be performed
with the same operation as for "orientation from 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.
Fig. 5-252:
FR-A800
Pr. 351
Pr. 352
0
Start signal (STF/STR)
Current position signal
Origin signal
DC injection brake
(ORA)
Action time chart for orientation during running
Main spindle speed (encoder)
Pr. 351
Pr. 352
Start signal (STF, STR)
Orientation command (X22)
DC injection brake
Orientation complete signal (ORA)
Action time chart for orientation from stop
Orientation speed (set with Pr. 351)
OFF ON
DC injection
brake start
position (set
with Pr. 355)
Orientation speed (orientation switchover speed)
Creep speed (orientation deceleration ratio)
OFF ON
OFF ON
OFF ON
OFF
(A) Application parameters
Creep speed (set with Pr. 352)
ON
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
ON OFF
Time
OFF
OFF
OFF
OFF
I001580E
I001581E
5 - 531