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4. OPERATION AND FUNCTIONS
(3) About dog type home position return when using the ABZ-phase pulse train specification rotary encoder
The home position using a ABZ-phase pulse train specification rotary encoder as a load side encoder is as
described below. It is the position per servo motor revolution, starting at the position where the Z-phase of
the load side encoder is passed through first after power-on of the servo amplifier.
Home position
Home position reference is a position per servo motor
revolution relative to the Z-phase signal of the load side
encoder that was passed through right after the power-
on of servo amplifier.
ON
OFF
Load side encoder
Z-phase signal
Home position
reference position
Machine position
Servo amplifier
power-on position
Equivalent to one servo motor revolution
The home position reference position is set relative to the Z-phase position of the load side encoder that is
passed through first after power-on of the servo amplifier.
In Case A and Case B where the power-on position differs as shown below, the power-on position must be
noted since the axis cannot stop at the same home position return position.
Home position
ON
OFF
Proximity dog
signal
Home position
return operation
Home position
reference position
Home position
return operation
ON
OFF
Load side encoder
Z-phase signal
Home position
reference position
Home position
return speed
Creep speed
Home position
Equivalent to one servo motor revolution
Equivalent to one servo motor revolution
Home position return speed
Servo amplifier
power-on position
Servo amplifier
power-on position
Case A
Case B
Summary of Contents for MR-J3-B-RJ006
Page 15: ...A 14 MEMO ...
Page 19: ...4 MEMO ...
Page 65: ...2 18 2 SIGNALS AND WIRING MEMO ...
Page 119: ...4 22 4 OPERATION AND FUNCTIONS MEMO ...
Page 145: ...6 6 6 TROUBLESHOOTING MEMO ...
Page 155: ...7 10 7 OUTLINE DRAWINGS MEMO ...
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