Mitsubishi Electric MR-J4-_GF, Instruction Manual

Page: 85 / 274

6. SERVO MOTOR DRIVING
6 - 26
Servo motor speed
Reverse
rotation
0 r/min
Forward
rotation
The home position return starts from here.
Home position
return direction
Home position return start position
Proximity dog
Stroke end (Note)
Note. This is not available with the software limit.
When the servo motor returns at the stroke end
(c) Method -3
1) Data set type home position return
The following figure shows the operation of Homing method -3. This type cannot be executed
during servo-off.
ON
OFF
ON
OFF
Statusword bit 12
Homing attained
Controlword bit 4
Homing operation start
Home position return position data
Servo motor speed
Reverse
rotation
0 r/min
Forward
rotation
2) Torque limit changing data set type home position return
The following figure shows the operation of Homing method -3 in the indexer mode. This type
cannot be executed during servo-off.
Reverse
rotation
Forward
rotation
Servo motor speed 0 r/min
Statusword bit 12
Homing attained
ON
OFF
ON
OFF
Controlword bit 4
Homing operation start
Point actual value
0% [Pr. PC77] [Pr. PC77] Enabled torque limit value
Hold the previous value 0
Modes of operation Homing mode (hm)
Home position return
position data