Mitsubishi Electric MELSEC-L Series LD40PD01 User Manual page 109

■"Filter Time"
General-purpose input or pulse input count can be selected for "Filter Time".
• General-purpose input (General Input 0μs to General Input 5ms)
Set this method to reduce noise. When a pulse width is less than the setting value of "Filter Time", the pulse is not detected as
an input signal. If the setting value is too large, pulses other than noise cannot be detected. Thus, set the filter time suitable for
the operating environment.
Input response time
0μs 10μs 50μs
• Pulse input count (1-Phase Multiple of 1 (CW/CCW) 10kpps to 2-Phase Multiple of 4 8000kpps)
Set this method to count input pulses. A setting according to the pulse input mode and counting speed prevents incorrect
count.
Pulse input mode Counting speed
1-Phase Multiple of 1 10kpps
(CW/CCW) (default value)
1-Phase Multiple of 2 10kpps
(default value)
2-Phase Multiple of 1 10kpps
(default value)
2-Phase Multiple of 2 10kpps
(default value)
2-Phase Multiple of 4 10kpps
(default value)
■Setting method of "Filter Time"
1.
Select a pulse input mode in the upper list box.
2.
Select an item in the lower list box.
• When "General Input" has been selected in the upper list box, select an input response time.
• When an item other than "General Input" has been selected in the upper list box, select a counting speed.
If the item in the upper list box is changed to another one after an item is selected in the lower list box, the selection status of
the lower list box returns to the default value.
0.1ms 0.2ms
100kpps 200kpps 500kpps
100kpps 200kpps 500kpps
100kpps 200kpps 500kpps
100kpps 200kpps 500kpps
100kpps 200kpps 500kpps
0.4ms 0.6ms 1ms (default value)
1000kpps 2000kpps
1000kpps 2000kpps
1000kpps 2000kpps
1000kpps 2000kpps
1000kpps 2000kpps
9 CREATING A HARDWARE LOGIC
9.1 Main Blocks in the Hardware Logic Outline Window
5ms
 
4000kpps 
 
4000kpps 
4000kpps 8000kpps
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