Operating instructions

144 Application manual Positioning 04/08
Operation mode 25: Homing to right rising edge of home switch without
encoder ref. signal with positive hardware limit switch
Dest.: Rising right edge of home switch
A Home switch active 0
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 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 active 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
Home Switch
25
25
25
Pos. HW Limit Switch
A
B
C
vf
vf
vc
vc
vf
vf
A: Homing direction (search direction) is clockwise toward positive 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 passed, the direction of rotation is reversed. Home position is the
rising edge of the home switch signal. 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. Travel to falling edge of ho-
me switch signal is performed at
Fast Speed 1132. When the home switch is passed
in positive direction, the direction of rotation is reversed. Home position is the rising
edge of the home switch signal. Homing is performed at
Creep Speed 1133.
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. Home position is the rising
edge of the home switch signal. During the whole operation, homing is performed at
Fast Speed 1132.
Application manual Positioning 04/08144