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3 POSITIONING DEDICATED SIGNALS
(15) DOG/CHANGE signal (M2414+20n)
(Note-1)
................. Status signal
(a) This signal turns on/off by the proximity dog input (DOG) of the Q172DLX/
servo amplifier/input(DI) of built-in interface in Motion CPU
QDS
/bit
device
QDS
at the home position return.
This signal turns on/off by the speed/position switching input (CHANGE) of
the Q172DLX/proximity dog input (DOG) of servo amplifier/input (DI) of
built-in interface in Motion CPU
QDS
/bit device
QDS
at the speed/position
switching control.
(Note-2)
(There is no CHANGE signal in the servo
amplifier.)
(b) The state of the speed/position switching input (CHANGE) when the
CHANGE signal is ON/OFF is shown below.
1) Q172DLX use
(Note-3)
DOG/CHANGE signal : ON
Q172DLX
DOG/CHANGE
DOG/CHANGE
COM
DOG/CHANGE signal : OFF
Q172DLX
DOG/CHANGE
DOG/CHANGE
COM
2) Servo amplifier input use
(Note-4)
DOG signal : ON
DOG
DI3
DICOM
DOG signal : OFF
DOG
DI3
DICOM
Servo amplifier Servo amplifier
3) Built-in interface in Motion CPU use
(Note-3)
QDS
DI signal : ON
DI signal : OFF
DI
COM
DI
COM
Built-in interface in Motion CPU Built-in interface in Motion CPU
DI
DI
4) Bit device use
(Note-1)
QDS
The set bit device is the DOG/CHANGE signal.
(Note-1): Refer to the "Q173D(S)CPU/Q172D(S)CPU Motion controller Programming Manual
(COMMON)" for an external signal and bit device.
(Note-2): When using the Q173DCPU(-S1)/Q172DCPU(-S1), the external input signal (DOG)
of servo amplifier can also be used in the speed-position switching control. (Refer to
Section 1.3 for the software version that supports this function.)
(Note-3): Refer to the "Q173D(S)CPU/Q172D(S)CPU Motion controller User’s Manual" for a
pin configuration.
(Note-4): Refer to the "Servo Amplifier Instruction Manual" for a pin configuration.
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