Operation With Acceleration/Deceleration (M8338 = On - Mitsubishi MELSEC-F FX3U Series User Manual

FX /FX Series PLC User's Manual - Positioning Control Edition
3U 3UC
Built-in Positioning Function
The rotation direction depends on the ON/OFF status of the specified device as shown in the following
table.
During execution of this instruction, however, do not use the output specified by
ON/OFF status of
device specified by
ON
OFF

10.3.2 Operation with Acceleration/Deceleration (M8338 = ON)

After turning on the acceleration/deceleration function (M8338), if the
output pulse frequency
deceleration will be performed first, and then the variable speed pulse
output (PLSV) instruction will change the output frequency.
If the FX PLC of below Ver.2.00 is used, operation will be performed without acceleration/deceleration.
3UC
M8000
Command
input
FNC 157
→ For details on the maximum speed, bias speed, acceleration time, and deceleration time, refer to
Speed
Bias speed
Initial value: 0 Hz
S •
Instruction
Activation contact
1) For , specify the output pulse frequency.
S
Even if pulses are being output, the output pulse frequency
deceleration, however, will not be performed.
32-bit operation
2) For , specify the pulse output number in the range of Y000 to Y003.
D
1
Rotation direction (increase/reduction of current value)
If the number of output pulses specified by
be performed in the forward rotation direction.
Forward rotation (Outputting the
If the number of output pulses specified by
will be performed in the reverse rotation direction.
Reverse rotation (Outputting the
value is changed, acceleration or
S
•
S• D
1
PLSV
Maximum speed Initial value: 100,000 Hz
Acceleration time
Initial value: 100 ms
100 250
16-bit operation
When high-speed output special
When transistor output of main unit
10 Variable Speed Operation (Variable Speed Pulse Output)-PLSV Instruction
S
pulse will increase the current value.)
D
1
S
D
pulse will reduce the current value.)
1
M8338
•
D
2
Subsection 4.2.5 to Subsection 4.2.8.
Output
pulse
frequency
S •
Bias speed
Deceleration time
Initial value: 100 ms
500 250
ON
can be changed freely. Acceleration/
S
adapter is used
is used
10.3 Function and Operation
.
D
2
is a positive number, the operation will
is a negative number, the operation
Time
OFF
Setting range
-32,768 to -1 Hz, 1 to 32,767 Hz
-200,000 to -1 Hz, 1 to 200,000 Hz
-100,000 to -1 Hz, 1 to 100,000 Hz
B - 123
A
B
Apx.