Homing [A] - Mitsubishi Electric MELSERVO-J5 User Manual

■Absolute position linear encoder
When using an absolute position linear encoder, the data set type homing can also be carried out.
• For proximity dog type homing
For a proximity dog type homing, the nearest reference home position after proximity dog off is the home position. The linear
encoder home position can be set in any position. LZ (Encoder Z-phase pulse) is outputted based on the set value of [Pr.
PL01.2 Homing stop interval setting].
Linear servo motor speed
0 mm/s
ON
Proximity dog signal
OFF
Reference home position
Linear servo motor position
Linear encoder home position
*1 This can be changed with [Pr. PL01].

Homing [A]

Precautions
• The incremental linear encoder and the absolute position linear encoder have different reference home positions at
homing.
• For the incremental linear encoder, a home position (reference mark) of the linear encoder is necessary in the homing
direction.
• To execute homing securely in the following example, move the linear servo motor to LSN with an operation such as the
JOG operation, then start homing.
Returnable area: Homing is possible when homing
is started from this area.
LSN
Homing direction
Homing direction
Homing speed
*1
1048576 pulses
1048576 pulses × n
Non-returnable area: Homing is not possible when homing
Proximity dog
Home position of linear encoder (reference mark)
Creep speed
Home position
is started from this area.
LSP
10 USING A LINEAR SERVO MOTOR
375
10.4 Basic functions
10