Instruction manual
8. OUTPUT MODULES
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(j) DOG signal (M2414+20n)
1) The DOG signal is controlled according to the ON/OFF status proximity
dog inputs to the A278LX, A172SENC from an external source.
2) Regardless whether "N/O input" or "N/C input" is designated in the system
settings, the DOG signal turns ON when the proximity dog signal is ON,
and the proximity dog signal turns OFF.
3) If "N/O input" is designated in the system settings, the proximity dog input
turns ON when the proximity dog signal turns ON. If "N/C input" is
designated in the system settings, the proximity dog input turns ON when
the proximity dog signal turns OFF.
(k) Servo READY signal (M2415+20n)
1) The servo READY signal switches ON when a READY status exists at
the servo amplifiers connected to each axis.
2) The servo READY signal switches OFF at the following times:
• When no servo amplifier is installed
• When the servo parameters have not been set
• When an emergency stop signal is input to the power supply module
from an external source
• When the servo OFF status is established by switching ON
M3215+20n
• When a servo error occurs
See Section 11.4 "Servo Errors" for details.
(l) Torque control in progress signal (M2416+20n)
This signal switches ON at axes where torque control is being executed.
(m)CHANGE signal (M2417+20N)
1) The CHANGE signal is controlled according to the ON/OFF of the
external speed/position control change input (CHANGE) to the
A278LX/A172SENC.
• Speed/position switching input is OFF ..... CHANGE signal: OFF
• Speed/position switching input is ON ...... CHANGE signal: ON
2) The status of the speed change switch (CHANGE) when the CHANGE
signal is ON/OFF is shown below.
CHANGE signal: ON CHANGE signal: OFF
CHANGE
COM
A278LX/A172SENC
CHANGE
A278LX/A172SENC
CHANGE
CHANGE
COM
(n) Limit switch output enabled command (M3206+20n)
The limit switch output enable command is used to enable limit switch
output.
• ON...... The limit switch output's ON/OFF pattern is output from AY42.
• OFF .... The limit switch output is switched OFF from AY42.