Mitsubishi Electric MELSEC iQ-R User Manual page 37

Filter type Item
Band pass filter 'CH1 Averaging process specification'
(Un\G501)
'CH1 BPF Pass band edge frequency (Low)'
(Un\G564)
'CH1 BPF Pass band edge frequency (High)'
(Un\G566)
'CH1 Attenuation band width' (Un\G568)
Setting and setting range
Set Band pass filter (7).
Set a pass band edge frequency for the band pass filter. Set the frequency that
becomes the boundary between the lower pass band and an attenuation band and
the one that becomes the boundary between the higher pass band and an
attenuation band.
The setting range varies depending on the conversion cycle. The following shows the
setting range of the frequency.
Conversion cycle Setting range
10s Pass band edge frequency (High) + Attenuation band
width  48000
Pass band edge frequency (Low) - Attenuation band
width > 0
Attenuation band width  1300
Pass band edge frequency (Low) < Pass band edge
frequency (High)
20s Pass band edge frequency (High) + Attenuation band
width  24000
Pass band edge frequency (Low) - Attenuation band
width > 0
Attenuation band width  650
Pass band edge frequency (Low) < Pass band edge
frequency (High)
30s Pass band edge frequency (High) + Attenuation band
width  16000
Pass band edge frequency (Low) - Attenuation band
width > 0
Attenuation band width  440
Pass band edge frequency (Low) < Pass band edge
frequency (High)
40s Pass band edge frequency (High) + Attenuation band
width  12000
Pass band edge frequency (Low) - Attenuation band
width > 0
Attenuation band width  330
Pass band edge frequency (Low) < Pass band edge
frequency (High)
60s Pass band edge frequency (High) + Attenuation band
width  8000
Pass band edge frequency (Low) - Attenuation band
width > 0
Attenuation band width  220
Pass band edge frequency (Low) < Pass band edge
frequency (High)
80s Pass band edge frequency (High) + Attenuation band
width  6000
Pass band edge frequency (Low) - Attenuation band
width > 0
Attenuation band width  170
Pass band edge frequency (Low) < Pass band edge
frequency (High)
Set an attenuation band width for each channel. This setting is common to both lower
and higher sides.
• The difference between the BPF pass band edge frequency (Low) and the
attenuation band width is the boundary between the lower attenuation band and
the stopband. Frequencies lower than the difference between the BPF pass band
edge frequency (Low) and the attenuation band width are cut off.
• The sum of the BPF pass band edge frequency (High) and attenuation band width
is the boundary between the higher attenuation band and the stopband.
Frequencies higher than the sum of the BPF pass band edge frequency (High) and
the attenuation band width are cut off.
1 FUNCTIONS
1.5 A/D Conversion Method
1
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