Deceleration Start Flag Function - Mitsubishi Electric MELSEC-Q Series User Manual

Hide thumbs Also See for MELSEC-Q Series:

Table of Contents

13.7.8 Deceleration start flag function

Md.48 Deceleration start flag 0

The "deceleration start flag function" turns ON the flag when the constant speed status

or acceleration status switches to the deceleration status during position control whose

operation pattern is "Positioning complete". This function can be used as a signal to

start the operation to be performed by other equipment at each end of position control

or to perform preparatory operation, etc. for the next position control.

For the "deceleration start flag function", the following will be explained.

[1] Control details

[2] Precautions during control

[3] Deceleration start flag function setting method

[4] Checking of deceleration start flag

[1] Control details

When deceleration for a stop is started in the position control whose operation

pattern is "Positioning complete", "1" is stored into "[Md.48] Deceleration start

flag". When the next operation start is made or the manual pulse generator

operation enable status is gained, "0" is stored. (Refer to Fig. 13.49.)

(1) Start made with positioning data No. specified

Operation pattern: Positioning complete (00)

Fig. 13.49 Operation of deceleration start flag

(2) Block start

At a block start, this function is valid for only the position control whose

operation pattern is "Positioning complete" at the point whose shape has

been set to "End". (Refer to Fig. 13.50.)

The following table indicates the operation of the deceleration start flag in the

case of the following block start data and positioning data.

Chapter 13 Control Sub Functions

Start data No.

0: Block start

Special start