Mitsubishi Electric QD70D4 User Manual page 28

Q series
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1 PRODUCT OUTLINE
Bias speed at start
*4: "Stop cause" indicates any of the following.
• Error occurred in the programmable controller CPU or QD70D.
• JOG start signal (Y(n+1)8 to Y(n+1)F) has turned OFF during JOG operation.
• Axis stop signal (Y(n+1)0 to Y(n+1)7) has turned ON.
• Speed change to speed 0 (pulse/s) (when bias speed at start is 0 (pulse/s))
• Machine OPR control of count 2
*5: "Set deceleration stop time" is any of the following.
• During positioning control
• At speed change to speed 0 (pulse/s)
• During machine OPR control of count 2 : OPR. 7 DEC/STOP time at OPR
• During JOG operation
*6: When the axis is decelerated to a stop by a speed change to speed 0 (pulse/s), the BUSY signal does
not turn OFF.
*7: The same operation is performed when an immediate stop cause occurs during machine OPR control
(except the case of count 2).
*8: Pulse output can be set to stop at the point of time when "Preset deceleration stop time" is elapsed.
For details, refer to section 4.1 Type of data, "Pr.12 Pulse output method (stop signal enabled)".
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Pulse output operation at stop
When the axis stops due to stop cause occurrence, if there is the pulse being output
when the set deceleration stop time has elapsed from the start of deceleration stop,
the output as much as 1 pulse will be done.
The following shows the pulse output operation at deceleration stop.
V
Pulse output
ON
*6
BUSY signal
*4
Stop cause occurrence
(Start of deceleration stop)
*5
Set deceleration stop time
1 pulse
: Da. 4
DEC/STOP time
: Cd. 9
DEC/STOP time at speed change
: JOG. 3 JOG DEC time
MELSEC-Q
t
Pulse that is being output when set
deceleration stop time has elapsed
will be output.
*7
OFF
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