User manual of EL8-EC***F AC Servo
203
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
encoder Z-signal valid
Diagram C:
Homing switch & positive limit switch = OFF
1. Move in
positive direction
at
high velocity
until
positive limit switch valid
.
2. Move in
negative direction
at
high velocity
until
after homing switch
.
3. Move in
positive direction
at
high velocity
until
homing switch valid
.
4. Move in
negative direction
at
low velocity
and stops
after
homing switch
and
first
encoder Z signal valid
If the 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.
