Setting Of Output Pulse Frequency (Dvit, Plsv, Drvi, And Drva Instructions - Mitsubishi FX3G Series User Manual

FX /FX /FX PLC User's Manual - Positioning Control Edition
3G 3U 3UC
Built-in Positioning Functions
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, the operation will be performed at the maximum speed. If the set value of
the output pulse frequency is less than the bias speed value, the operation will be performed at the bias
speed.
Instruction Operand
DVIT
S
*3
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
*3. Only available for FX
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 is output from the transistor output of the main unit to perform operation, it may cause PLC
failure.
• Set the output pulse frequency so that the output pulse frequency value is 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
and FX PLCs.
3U 3UC
→ 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 - 41
A
B
Apx.
•
2
•
2
•
2
•
2