Mitsubishi Electric MR-J4-_GF, Instruction Manual

Page: 70 / 274

6. SERVO MOTOR DRIVING
6 - 11
3) Method 7, 8, 11, 12: Homing on home switch and index pulse
These types include the operation at stroke end detection in addition to the operation of Method 3
to Method 6. Thus, the home position is the same as that of Method 3 to Method 6. Method 7 has
the operation of the dog type last Z-phase reference home position return. Method 8 has the
operation of the dog cradle type home position return at a forward rotation start. Method 11 and
12 are the same as Method 7 and 8 except that the starting direction is forward in Method 7 and
8, and reverse in Method 11 and 12.
7
7
7
8
8
8
Index Pulse
Home Switch
Positive Limit Switch
4) Method 17 to 30: Homing without index pulse
Method 17 to 30 have the operation of Method 1 to Method 14; however, these types set the
home position on the dog but not on the Z-phase. The following figure shows the operation of the
home position return type of Method 19 and Method 20. Method 19 and Method 20 have the
operation of Method 3 and Method 4; however, these types set the home position on the dog but
not on the Z-phase. Method 19 has the operation of the dog type front end reference home
position return. Method 20 has the operation of the dog cradle type home position return;
however, the stop position is on the dog but not on the Z-phase.
19
20
19
Home Switch
20