Immediate Stoppage Of Pulse Output (Pulse Output Stop Command Flag; Designation Of Zero Return Direction (Dszr/Zrn Instruction - Mitsubishi MELSEC-F FX3U Series User Manual

FX /FX Series PLC User's Manual - Positioning Control Edition
3U 3UC
Built-in Positioning Function
4.3.2 Immediate Stop of Pulse Output (Pulse Output Stop Command Flag)
During execution of positioning instruction, if the pulse output stop command flag is turned on, the pulse
outputting operation will be immediately stopped.
To output the pulse again, turn off the pulse output stop command flag. After that, deactivate (turn off) the
positioning instruction, and then activate it again (turn it on again).
The following table shows the pulse output stop command flag of each pulse output destination device (Y000,
Y001, Y002, Y003).
Pulse output destination
device
Y000
Y001
Y002
*1
Y003
*1. Devices related to Y003 (pulse output destination) are valid only if two FX
connected to the FX
Note:
Use this flag only if immediate stop is absolutely needed to avoid dangers. Since the motor is immediately
stopped, use of this flag may damage the system. For normal STOP operation (decelerated to stop), use
"instruction OFF" function or "forward/reverse limit flag."
However, note that if PLSV instruction is used together with "instruction OFF" function or "forward/reverse
limit flag" in the M8338 = OFF mode (operation without acceleration/deceleration), operation can be
immediately stopped.
4.3.3

Designation of Zero Return Direction (DSZR/ZRN Instruction)

Use DSZR instruction (zero return instruction with DOG search function) or ZRN instruction (zero return
instruction) to specify the zero return direction
Reverse rotation limit 2
(Servo amplifier side)
Servo motor
*1. If DSZR instruction (zero return instruction with DOG search function) is used, zero return will be
performed in the direction of the first operation.
1. Zero return instruction with DOG search function (DSZR instruction)
Turn on or off the zero return direction designation flag shown in the following table to specify the zero return
direction.
Pulse output
destination device
Y000
Y001
Y002
*1
Y003
*1. Devices related to Y003 (pulse output destination) are valid only if two FX
connected to the FX
B - 36
Pulse output stop
command flag
M8349
M8359
M8369
M8379
PLC.
3U
*1 . The zero return direction depends on the instruction.
→ For operation of DSZR instruction, refer to Section 6.2.
→ For operation of ZRN instruction, refer to Section 6.3.
Reverse rotation limit 1 Forward rotation limit 1
(Programmable
controller side)
LSR
Reverse rotation
Zero return direction
designation flag
M8342
M8352
M8362
M8372
PLC.
3U
4.3 Various Flags for Operation Commands
Operation
During pulse outputting operation, if the pulse
output stop command flag of the corresponding
pulse output destination device is turned on, the
pulse outputting operation will be immediately
stopped.
Forward rotation limit 2
(Programmable (Servo amplifier side)
controller side)
LSF
Forward rotation
Description of setting
To perform zero return in the normal
rotation direction:Turn on the flag.
To perform zero return in the reversed
rotation direction:Turn off the flag.
4 Before Programming
-2HSY-ADP adapters are
3U
-2HSY-ADP adapters are
3U