Operating instructions

122 Application manual Positioning 04/08
Operation mode 3: Homing to positive 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 left edge of positive home switch
A 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
home switch
Speed (after reversal of direction of rotation)
Creep Speed 1133
B Home switch active 1
Search direction Negative direction
Speed
Creep Speed 1133
v f
v c
v c
Home switch
3
3
A
B
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 inactive. Travel to home switch
is performed at
Fast Speed 1132. When the home switch is reached, the direction of
rotation is reversed. Home position is the first encoder ref. signal after the falling
edge of the home switch signal. Search for the home position is performed at
Creep
Speed
1133.
B: Homing direction is negative if the home switch is active. Home position is the
first encoder ref. signal after the status change of the home switch signal. Search for
the home position is performed at
Creep Speed 1133.
Application manual Positioning 04/08122