Axis Statuses - Mitsubishi Electric Q Series 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 Multiple CPU
system 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.
(3) Error detection signal (M2407+20n) ........................... Status signal
(a) This signal turns on with detection of a minor error or major error, and it is
used as judgement of the error available/not available.
The applicable error code
register with detection of a minor error. (Refer to Section 4.2.1)
The applicable error code
register with detection of a major error. (Refer to Section 4.2.1)
OFF
(Note-1)
is stored in the minor error code storage
(Note-1) is stored in the major error code storage
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In-position range
At real mode
t