Mitsubishi Electric MELSEC Q Series Programming Manual page 70

3 POSITIONING DEDICATED SIGNALS
(c) When using the Q172DLX/built-in interface in Motion CPU, "Normally open
contact input" and "Normally closed contact input" of the system setting
can be selected.
When using the proximity dog input (DOG) of servo amplifier/bit device,
"Normally open contact input" and "Normally closed contact input" of the
servo data setting can be selected.
(16) Servo ready signal (M2415+20n) ............................... Status signal
(a) This signal turns on when the servo amplifiers connected to each axis are
in the READY state (READY ON and Servo ON).
(b) This signal turns off in the following cases.
• All axes servo ON command (M2042) is off
• Servo amplifier is not mounted
• Servo parameter is not set
• It is received the forced stop input from an external source
• Servo OFF by the servo OFF command (M3215+20n) ON of each axis
• Servo error occurs
Refer to "APPENDIX 1.4 Servo errors" for details.
Q61P Q03UD
CPU
POINT
When the part of multiple servo amplifiers connected to the SSCNET (/H)
becomes a servo error, only an applicable axis becomes the servo OFF state.
(17) Torque limiting signal (M2416+20n) ........................... Status signal
This signal turns on while torque limit is executed.
The signal toward the torque limiting axis turns on
Q172D
CPU
Communication is normal
Servo ready signal : ON
AMP
AMP
M M
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QDS
Q38DB