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7 ABSOLUTE POSITION DETECTION SYSTEM
7.3 Absolute position detection system by DIO [A]
Homing
■Dog type homing
Set the creep speed of homing in advance to prevent shock from hitting the machine. On detection of a zero pulse, CR
(homing) is turned from off to on. At the same time, the servo amplifier clears the droop pulses, comes to a sudden stop, and
stores the stop position into the non-volatile memory as the home position absolute position data.
CR should be turned on after checking that INP has turned on. If this condition is not satisfied, [AL. 096 Home position setting
warning] occurs. If homing is performed correctly, the alarm is automatically canceled. The number of homing times is limited
to 100000.
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Servo motor
Proximity dog
DOG (Proximity dog)
INP (In-position)
CR (Home position setting)
20 ms or more
20 ms or more
ABSB0 (ABS transmission data bit 0)
ABSB1 (ABS transmission data bit 1)
Update
ABSV (Absolute position undetermined)
Control circuit power supply
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