Function And Operation; Operation Without Acceleration/Deceleration (M8338 = Off - Mitsubishi FX3G Series User Manual

FX /FX /FX PLC User's Manual - Positioning Control Edition
3G 3U 3UC
Built-in Positioning Functions
10.3

Function and Operation

The variable speed pulse output instruction changes the speed while using the rotation direction output.
The acceleration/deceleration function applies for the variable speed pulse output (PLSV) instruction, which
makes it possible to specify whether acceleration/deceleration will be used or not.
If an FX PLC below Ver.2.20 is used, operation will be performed without acceleration/deceleration.
3UC

10.3.1 Operation without Acceleration/Deceleration (M8338 = OFF)

If the output pulse frequency
acceleration/deceleration function (M8338) OFF, the variable speed
pulse output (PLSV) instruction will change the output frequency without
using acceleration/deceleration.
M8001
Command
input
FNC 157
PLSV
→ For details on the maximum speed and bias speed, refer to Subsection 4.2.5 and Subsection 4.2.6.
Speed
S•
Instruction
Activation contact
1) For , specify the output pulse frequency.
S
Even if pulses are being output, the output pulse frequency
Acceleration/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
3) For , specify the rotation direction signal output device number.
D
2
When a high-speed output special adapter is used as a destination for pulse output on a FX
the output shown in the following table for rotation direction signals.
When a built-in transistor output is used as a destination for pulse output on a FX
use transistor output for signals rotation direction.
High-speed output special
adapter number
1st adapter
2nd adapter
value is changed after turning the
S
M8338
•
S• D D
1 2
100 250 500
ON
16-bit operation
When a high-speed output special
When a transistor output from the
Pulse output
destination device
D
1
D
1
D
1
D
1
10 Variable Speed Operation (Variable Speed Pulse Output)-PLSV Instruction
•
Time
250
OFF
can be changed freely.
S
adapter is used
main unit is used
Rotation direction
output
= Y000
Y004
D =
2
= Y001 Y005
D
=
2
= Y002
Y006
D =
2
= Y003 Y007
D
=
2
10.3 Function and Operation
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
PLC, use
3U
/FX /FX PLC,
3G 3U 3UC
B - 135
A
B
Apx.