Mitsubishi FR-A800

Position control under vector control and PM sensorless vector control
PARAMETERS
243
5
Roll feed mode (Pr.1293)
• If the roll feed mode is enabled in an application that needs repeated positioning in the same direction, such as a conveyor,
positioning can be performed repeatedly without position command overflow.
• When the roll feed mode is enabled (Pr.1293="1"), the position where the first position command is created is set as the
home position and the droop pulses are cleared.
When Pr.1293="1", simple positioning is available even if home position return cannot be completed.
• Positioning modes with which the roll feed mode can be enabled:
- Point table mode
- Home position return mode
- JOG mode
• Basic operation example
Input/output signals for point table positioning
• Output signal operation during positioning with point tables
Input/
output
Signal name Function
Pr.178 to
Pr.189
setting
Pr.190 to Pr.196
setting
Positive
logic
Negative
logic
Input
X76 Proximity dog
ON: dog ON
OFF: dog OFF
76 
X87 Sudden stop
When turned ON, the motor decelerates and stops
according to Pr.464.
87 
Output
MEND
Travel
completed
Turns ON when the position command operation has
completed while the number of droop pulses is within
the positioning completion width.
 38 138
ZA
Home position return
failure
Turns ON while the home position return warning
occurs.
 56 156
PBSY
During position
command opeartion
Turns ON during position command operation.  61 161
ZP
Home position return
completed
Turns ON after home position return operation is
complete.
 63 163
Servo-ON (LX)
0
Position command
speed
Start signal (STF)
Point table selection
signal
1000 10000
Indication of position
command or
current position
Y36
Point table 1
LX
0
Speed
Time
STF
PBSY
Point table selection signal
(RH)
Dwell time
Point table 2
MEND
Position command
Motor speed