Operating instructions

04/08 Application manual Positioning 125
Operation mode 6: Homing to negative home switch with detection of en-
coder ref. signal, home position is the first ref. signal after the home
switch signal has changed
Dest.: Ref. signal to left of right edge of negative home switch
A Home switch active 1
Search direction Positive 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
B Home switch inactive 0
Search direction Negative direction
Speed
Creep Speed 1133
v f
v c
v c
6
6
A
B
Home switch
Encoder
reference signal
The homing direction (search direction) depends on the signal status of the home
switch.
A: Homing direction is positive if the home switch is active. Travel to falling edge of
home switch is performed at
Fast Speed 1132. When the home switch is passed,
the direction of rotation is reversed. Home position is the first encoder ref. signal
after the rising edge of the home switch signal. Search for the home position is per-
formed at
Creep Speed 1133.
B: Homing direction is negative if the home switch is inactive. Home position is the
first encoder ref. signal after the rising edge of the home switch signal. Search for
the home position is performed at
Creep Speed 1133.
Application manual Positioning 12504/08