User Manual Of EL7-EC** AC Servo
184
Mode 6:
Diagram A:
Homing switch = OFF
1. Move in negative direction at high velocity until homing switch valid.
2. Move in positive direction at high velocity until homing switch invalid.
3. Move in negative direction at low velocity and stops after homing switch valid and first
encoder Z-signal valid
Diagram B:
Homing switch = ON
1. Start to move at homing switch position in positive direction at high velocity until after
homing switch.
2. Move in negative direction at low velocity and stops after homing switch valid and first
encoder Z-signal valid
If the positive/negative limit switch signal is valid during the homing process, the status
word (6041h) bit 13 will be valid, indicating homing error and the motor will stop
immediately.
Z-Signal
HOMING SWITCH
A:
HOMING SWITCH=OFF
High Velocity
6099h-01h
Low Velocity
6099h-02h
Start
Stop
6
6
Negative limit
NOT
Positive limit
POT
B:
HOMING SWITCH=ON
Limit switch homing switch Z-signal mode
Mode 7
Diagram A:
Homing switch & positive limit switch = OFF
1. Move in positive direction at high velocity until homing switch valid.
2. Move in negative direction at low velocity and stops after homing switch and first
encoder Z-signal valid.
Diagram B:
Homing switch = ON, positive limit switch = OFF
1. Start to move at homing switch position in negative direction at high velocity until after
homing switch.
2. Move in positive direction at high velocity until homing switch valid.
3. Move in negative direction at low velocity and stops after homing switch and first
