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Bumping homing (Pr40 = 3)
e.g. : When "Pr41 Detects the homing direction in − direction" is set.
Mechanical end
When the torque value has exceeded the setting (Pr45) for preset
time (Pr46), homing is completed.
During operation of this mode, the value of torque limit is restricted by bumping torque detection value (Pr45). In
bumping homing operation, when limit sensor in operation direction is detected, homing error (E-H0) is found.
In using this mode, the motor at the home position is in contact with the mechanical end, therefore be sure to
set the home offset (Pr47). (Set a value of plus and minus opposite to the desired travel direction as an offset.)
<Caution>
In setting the bumping homing, too high homing speed or too large torque limit causes excessive shock, which
may give damage to the machine or motor. Restrict the homing speed to approx 100 r/min on motor shaft, and
bumping torque limit below rated motor torque.
Home resetting (Pr40 = 4)
In this mode, the position where homing start signal is input is set to the home (0 position), and the motor does
not run but homing operation is completed.
Coordinate system(+)
Offset
Home
№ SX-DCT00221 -24-
Homing direction( − )
Starting
point
Panasonic Corporation
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