Mitsubishi Electric Melsec-F FX3GC Series User Manual page 190

FX /FX /FX /FX /FX
3S 3G 3GC 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
(M8338) OFF, the variable speed pulse output (PLSV) instruction will change the output frequency without
using acceleration/deceleration.
M8001
Command
input
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
S
Even if pulses are being output, the output pulse frequency
Acceleration/deceleration, however, will not be performed.
32-bit operation
*1. Setting range of FX
*2. Setting range of FX
2) For
D
1
3) For
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
FX PLC, use transistor output for signals rotation direction.
3UC
High-speed output special
adapter number
B - 146
PLC User's Manual - Positioning Control Edition
value is changed after turning the acceleration/deceleration function
S
FNC157
•
S• D
1
PLSV
100 250
ON
, specify the output pulse frequency.
16-bit operation
/FX /FX
3S 3G
/FX /FX
3S 3G
, specify the pulse output number in the range of Y000 to Y003.
, specify the rotation direction signal output device number.
1st adapter
2nd adapter
10 Variable Speed Operation (Variable Speed Pulse Output) - PLSV Instruction
M8338
•
D
2
Time
500 250
OFF
When a high-speed output special
adapter is used
When a transistor output from the
main unit is used
PLC is -32,768 to -10 Hz, +10 to 32,767 Hz.
3GC
PLC is -100,000 to -10 Hz, +10 to 100,000 Hz.
3GC
Pulse output Rotation direction
destination device
D = Y000
1
= Y001
D
1
= Y002
D
1
D = Y003
1
10.3 Function and Operation
can be changed freely.
S
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
/FX
3S
output
D Y004
=
2
Y005
D =
2
Y006
D
=
2
D Y007
=
2
*1
*2
PLC, use
3U
/FX /FX /
3G 3GC 3U