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5 DATA USED FOR POSITIONING CONTROL
5.2.6 Zero point return detailed parameters
Item
Pr.51 Zero point return
dwell time
Pr.52 Setting for the
movement amount
after near-point dog
ON
Pr.53 Zero point return
acceleration time
selection
Pr.54 Zero point return
deceleration time
selection
Setting value, setting range
Value set with peripheral device
0 to 65535 (ms)
The setting value range differs depending on the " Pr.11
Stepping motor mode selection" or " Pr.1 Unit setting".
Here, the value within the [Table 1] range is set.
0 : Pr.8 Acceleration time 0
1 : Pr.26 Acceleration time 1
2 : Pr.27 Acceleration time 2
3 : Pr.28 Acceleration time 3
0 : Pr.9 Deceleration time 0
1 : Pr.29 Deceleration time 1
2 : Pr.30 Deceleration time 2
3 : Pr.31 Deceleration time 3
Pr.51 Zero point return dwell time
When stopper stop method 1) is set for " Pr.45 Zero point return method", set the
time for the machine zero point return to complete after the near-point dog signal
turns ON.
The setting value must be longer than the movement time from the near-point dog
signal ON to stopping with the stopper.
(If the zero point return method is not "stopper stop method 1)", the " Pr.51 Zero
point return dwell time" value is irrelevant.)
Pr.52 Setting for the movement amount after near-point dog ON
When zero point return method is set the count method 1) or 2), set the movement
amount to the zero point after the near-point dog signal turns ON.
(The movement amout after near-point dog ON shoule be equal to or greater than
the sum of the "distance covered by the deceleration from the zero point return
speed to the creep speed" and "distance of movement in 10 ms at the zero point
return speed".)
Value set with
sequence program
0 to 65535 (ms)
0 to 32767 :
Set as a decimal
32768 to 65535 :
Convert into
hexadecimal and set
[Table 1] on right page
0
1
2
3
0
1
2
3
5 - 52
MELSEC-A
Setting value buffer
memory address
Default
value
Axis 1
Axis 2
0
79
229
80
230
0
81
231
0
82
232
0
83
233
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