Axis Statuses - Mitsubishi Electric Q172CPU Programming Manual

4 POSITIONING DEDICATED SIGNALS

4.1.1 Axis statuses

(1) In-position signal (M2402+20n) ................................... Status signal
(a) This signal turns on when the number of droop pulses in the deviation
counter becomes below the "in-position range" set in the servo parameters.
It turns off at the start.
Number of droop pulses
In-position signal
ON
(M2402+20n)
(b) An in-position check is performed in the following cases.
• When the servo power supply is turned on.
• After the automatic deceleration is started during
positioning control.
• After the deceleration is started with the JOG start signal
OFF.
• During the manual pulse generator operation.
• After the proximity dog ON during a home position return.
• After the deceleration is started with the stop command.
• When the speed change to a speed "0" is executed.
• Anytime................................................................................ At virtual mode
(2) Zero pass signal (M2406+20n) ................................... Status signal
This signal turns on when the zero point is passed after the power supply on of
the servo amplifier.
Once the zero point has been passed, it remains on state until the CPU has
been reset.
However, in the home position return method of proximity dog, count, dog cradle
or limit switch combined type, this signal turns off once at the home position
return in real mode start and turns on again at the next zero point passage.
OFF
4 - 17
In-position range
At real mode
t