Operating instructions

04/08 Application manual Positioning 127
C: Homing direction (search direction) is clockwise toward positive HW limit switch.
The home switch is not in search direction. The positive limit switch acts as a revers-
ing switch. When the positive limit switch is reached, the direction of rotation is re-
versed, and homing is performed in negative direction. Travel to rising edge of home
switch is performed at
Fast Speed 1132. Home position is the first encoder ref. sig-
nal after the home switch is passed. Search for the home position is performed at
Creep Speed 1133.
Operation mode
8: Homing to home switch with detection of encoder ref.
signal, homing direction positive (clockwise), reversal of direction of rota-
tion when positive HW limit switch is reached
Dest.: Ref. signal to right of left edge of home switch
A Home switch inactive 0
Search direction Positive direction
Speed
Fast Speed 1132
B Home switch active 1
Search direction Negative direction
Speed (before reversal of direction of rotation)
Fast Speed 1132
Condition
reversal of direction of rotation
Falling edge
home switch
Speed (after reversal of direction of rotation)
Creep Speed 1133
C Home switch inactive 0
Search direction Positive direction
Speed (before reversal of direction of rotation)
Fast Speed 1132
Condition
reversal of direction of rotation
Rising edge
positive HW limit switch
Speed (after reversal of direction of rotation)
Fast Speed 1132
Condition
reversal of direction of rotation
Falling edge
home switch
Speed (after reversal of direction of rotation)
Creep Speed 1133
8
8
8
A
B
C
v c
v c
v f
v f
v c
v c
Pos. HW Limit Switch
Home switch
Encoder
reference signal
Application manual Positioning 12704/08