Setting Of Various Items Regarding Speeds; Setting Of Various Items Regarding Instructions And Speeds - Mitsubishi Electric FX3S Series User Manual

FX /FX /FX
3S 3G 3GC
Built-in Positioning Functions
4.2

Setting of Various Items Regarding Speeds

Specify the output pulse frequency using the operand of each instruction or the related device to determine
the output pulse frequency, zero return speed, or creep speed.
4.2.1

Setting of Various Items Regarding Instructions and Speeds

1. Interrupt Positioning (DVIT) instruction, drive to increment (DRVI) instruction, and drive to
absolute (DRVA) instruction
For these instructions, it is necessary to specify the maximum speed, bias speed, acceleration time, and
deceleration time using the related devices in addition to the output pulse frequency specified by the operand
of the instruction.
For details on each setting item, refer to Subsection 4.2.2, and Subsection 4.2.5 to Subsection 4.2.8
2. Variable speed Pulse Output (PLSV) instruction
For the variable speed pulse output (PLSV) instruction, it is necessary to specify the maximum speed, bias
speed, acceleration time, and deceleration time using the related devices in addition to the output pulse
frequency specified by the operand of the instruction. However, note that the acceleration time and the
deceleration time are only valid during acceleration/deceleration (M8338 = ON).
For details on each setting item, refer to Subsection 4.2.2, and Subsection 4.2.5 to Subsection
1) When acceleration/deceleration is being performed (M8338 = ON)
2) When acceleration/deceleration is not performed (M8338 = OFF)
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/FX /FX PLC User's Manual - Positioning Control Edition
3U 3UC
Maximum speed
Initial value: 100,000 Hz
Output pulse frequency S
Actual
acceleration time
Bias speed
Initial value: 0 Hz
Acceleration
Current
position
Initial value: 100 ms
Maximum speed
Initial value: 100,000 Hz
Actual
acceleration time
Bias speed
Initial value: 0 Hz
Current
position
Initial value: 100 ms
Maximum speed
Initial value: 100,000 Hz
If the frequency value is
less than the bias speed
value, the frequency will
not be output.
Bias speed
Initial value: 0 Hz
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For operation of DVIT instruction, refer to Chapter 9.
For operation of DRVI or DRVA instruction, refer to Chapter 8.
2
Number of S
1
output pulses
time
Initial value: 100 ms
For operation of PLSV instruction, refer to Chapter 10.
Output pulse
frequency
S
Acceleration
time
Output pulse
frequency S
4 Before Programming
4.2 Setting of Various Items Regarding Speeds
Actual
deceleration time
Bias speed
Deceleration
Target
time
position
Actual
deceleration time
Bias speed
Deceleration
time
Initial value: 100 ms
Bias speed
4.2.8.