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MELSEC-Q
3   SPECIFICATIONS 
 
<Rise/Fall time and the corresponding counting speed switch settings> 
 
Counting speed switch settings 
Rise/Fall Time 
30kpps 10kpps  1kpps  100pps 50pps  10pps  1pps  0.1pps 
t = 8.4µs or less  30kpps  10kpps  1kpps 100pps 50pps  10pps  1pps  0.1pps 
t = 25µs or less  10kpps  10kpps  1kpps 100pps 50pps  10pps  1pps  0.1pps 
t = 250µs or less  -  1kpps  1kpps 100pps 50pps  10pps  1pps  0.1pps 
t = 2.5ms or less  -  -  100pps  100pps  50pps  10pps  1pps  0.1pps 
t = 5ms or less  -  -  -  50pps  50pps  10pps  1pps  0.1pps 
t = 25ms or less  -  -  -  -  10pps  10pps  1pps  0.1pps 
t = 250ms or less  -  -  -  -  -  1pps  1pps  0.1pps 
t = 2.5s or less  -  -  -  -  -  -  0.1pps  0.1pps 
t = 5s  - - - - - - - 0.05pps 
 
tt
 
 
<Derating Chart> 
 
(   )
(   )
40
0
ON
ratio
Ambient temparature
30VD
50
60
70
80
90
100
10 20 30 40 50
55
3
 
 
3: "ON" indicates the status where voltage is applied  
to pulse input terminals. 
 
 
 
 
 
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