Operating instructions

132 Application manual Positioning 04/08
A: Homing direction (search direction) is anticlockwise toward negative HW limit
switch if home switch and limit switch are inactive. The home switch is in search
direction. Travel to right edge of home switch is performed at
Fast Speed 1132.
When the home switch is reached, the direction of rotation is reversed. Home posi-
tion is the first encoder ref. signal after travel in positive direction. Search for the
home position is performed at
Creep Speed 1133.
B: When homing is started, the home switch is active. Homing direction (search
direction) is clockwise toward positive HW limit switch. Home position is the first
encoder ref. signal after the home switch is passed in positive direction. Homing is
performed at
Creep Speed 1133.
C: Homing direction (search direction) is anticlockwise toward negative HW limit
switch. The home switch is not in search direction. The negative limit switch acts as
a reversing switch. When the negative limit switch is reached, the direction of rota-
tion is reversed, and homing is performed in positive direction. At first, the operation
is performed at
Fast Speed 1132, when the left edge of the home switch is reached,
the speed is changed to
Creep Speed 1133. Home position is the first encoder ref.
signal after the right edge of the home switch is passed.
Operation mode
12: Homing to home switch with detection of encoder ref.
signal, homing direction negative (anticlockwise), reversal of direction of
rotation when negative HW limit switch is reached
Dest.: Ref. signal to left of right edge of home switch
A Home switch inactive 0
Search direction Negative direction
Speed
Fast Speed 1132
B 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
C Home switch inactive 0
Search direction Negative direction
Speed (before reversal of direction of rotation)
Fast Speed 1132
Condition
reversal of direction of rotation
Rising edge
negative HW limit switch
Speed (after 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
Application manual Positioning 04/08132