Parker Hannifin S.p.A. Divisione S.B.C. user’s manual TWIN-N and SPD-N
164
10.3.8.1.7 Methods 17 to 30: Homing without an index pulse
These methods are similar to methods 1 to 14 except that the home position is not dependent
on the index pulse but only dependent on the relevant home or limit switch transitions. For
example methods 19 and 20 are similar to methods 3 and 4 as shown in the following
diagram.
(19)
(20)
(20)
(19)
Home switch
Figure 28: Homing on the positive home switch
10.3.8.1.8 Methods 31 and 32: Reserved
These methods are reserved for future expansion of the homing mode.
10.3.8.1.9 Methods 33 to 34: Homing on the index pulse
Using methods 33 or 34 the direction of homing is negative or positive respectively. The
home position is at the index pulse found in the selected direction.
Index pulse
(33)
(34)
Figure 29: Homing on the index pulse
10.3.8.1.10 Method 35: Homing on the current position
In method 35 the current position is taken to be the home position.
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