SMC Networks LECSN-T Series - Page 526

18 - 74
18．EtherCAT COMMUNICATION
2) Torque limit changing dog type home position return
POINT
Torque limit changing dog type home position return is available with drivers .
The following figure shows the operation of Homing method -1 in the indexer method. The
operation direction of Homing method -33 is opposite to that of Homing method -1.
Reverse
rotation
Forw ard
rotation
Servo motor speed
ON
OFF
Statusw ord bit 10
Target reached
ON
OFF
Statusw ord bit 12
Homing attained
ON
OFF
Pow er supply
ON
OFF
ON
OFF
DOG (Proximity dog)
ON
OFF
Controlw ord bit 4
Homing operation start
Point actual value
Set time in
[Pr. PT56]
(Note)
Positive torque limit value
Negative torque limit value
Torque limit value2
Torque limit
value2
Creep speed
Home position
return speed
Z-phase
Enabled torque limit value
Position w here the station home
position shift distance is added
Hold the previous value
0
Set time in [Pr. PT56]
or [Pr. PT57]
Home position
shift distance
0 r/min
Note.
A delay time can be set with [Pr. PT39].