Setting Of Output Pulse Frequency (Dvit, Plsv, Drvi, And Drva Instructions - Mitsubishi MELSEC-F FX3U Series User Manual

FX /FX Series PLC User's Manual - Positioning Control Edition
3U 3UC
Built-in Positioning Function
4.2.2

Setting of Output Pulse Frequency (DVIT, PLSV, DRVI, and DRVA Instructions)

Set the output pulse frequency using the operand of each instruction. In this case, the setting range depends
on the instruction (see the following table).
However, even in the setting range of each instruction, if the set value of the output pulse frequency is more
than the maximum speed value, operation will be performed at the maximum speed. If the set value of the
output pulse frequency is less than the bias speed value, operation will be performed at the bias speed.
Instruction Operand
DVIT
S
instruction
PLSV
S
instruction
DRVI
S
instruction
DRVA
S
instruction
*1. If FX -2HSY-ADP is not used, note that the frequency value cannot be more than 100,000 Hz.
3U
*2. If FX -2HSY-ADP is not used, note that the frequency value cannot be less than -100,000 Hz.
3U
Caution:
• To use the main unit (transistor output), set the output pulse frequency (absolute value) to 100,000 Hz or less.
If more than 100,000 Hz pulse is output from the transistor output terminal Y000, Y001, Y002 of the main unit to
perform operation, the PLC may be damaged.
• Set the output pulse frequency so that the output pulse frequency value can be less than the maximum frequency
value of the servo amplifier (driver unit).
→ For operation of DRVI or DRVA instruction, refer to Chapter 8.
Setting range
16-bit operation 32-bit operation
(Hz)
10 to 32767
10 to 200,000
2
-32768 to -1, -200,000
+1 to 32767
+1 to 200,000
10 to 32767
10 to 200,000
2
10 to 32767
10 to 200,000
2
→ For operation of DVIT instruction, refer to Chapter 9.
→ For operation of PLSV instruction, refer to Chapter 10.
(Hz)
*1
DVIT
*2
to -1,
*1
*1
DRVI
*1
DRVA
4 Before Programming
4.2 Setting of Various Items Regarding Speeds
Instruction format
• • •
S S D D
1 2 1
•
PLSV S• D D
1
• • •
S S D D
1 2 1
S • S • D • D
1 2 1
B - 31
A
B
Apx.
•
2
•
2
•
2
•
2