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31 POSITIONING INSTRUCTION
31.3 Mechanical OPR
Outline of operation
For each speed, refer to Page 388 Items related to speed.
For the items related to OPR, refer to Page 402 Items related to OPR.
*1 When FX5 operand is specified
*2 When the FX3 compatible operand is specified
*3 Remains on until it is turned off using program or engineering tool or the positioning instruction is next driven again.
Basic operation
The following describes the basic operation.
1. After the drive contact is turned on, pulse output is started and the speed is increased from the bias speed.
2. After the speed has reached the OPR speed, the operation will be performed at the OPR speed.
3. After the near-point dog is detected, the speed is decreased.
4. After the speed has reached the creep speed, the operation will be performed at the creep speed.
5. After the near-point dog is turned from ON to OFF, pulse output is stopped when the zero signal is detected.
DSZR/DDSZR (s1) (s2) (d1) (d2)
Drive
contact
Clear signal
Drive contact
(s1)
*2
*3
20 ms + 1 operation cycle (ms)
Speed
Bias speed
Maximum speed
Deceleration
time
Acceleration
time
OPR speed (s1)
*1
Creep speed
(s2)
*1
Time
Origin address
Near-point DOG
Rear end
Zero signal
(s2)
*2
Within
1 ms
Instruction execution
complete flag
SM8029
Instruction
execution complete
flag (d2)
*1
Forward end
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