Omron K3MA-J User Manual page 37

3-5 Monitoring the Rotational Speed by Monitor Output of an Inverter (K3MA-F)
Parameter Setting
Operation
• The input type is set to 5K.
• The scaling is set as follows.
INP: 1440
DSP: 3600
Position of decimal point: \\\\\
(Calculation of scaling factor)
Since 60 rps can be converted into 3600 rpm, the scaling is set in such a way that an
input of 1440 Hz is indicated as 3600 rpm.
• Comparative output 1 is used to generate an upper-limit signal action and the
OUT upper-limit value is set to "3000 rpm".
• Comparative output 2 is used to generate a lower-limit signal action and the OUT
lower-limit value is set to "2000 rpm".
Level Parameter
p-fre
inp
dsp
Initial setting
dp
out1.t
out2.t
out1
Operation
setting
out2
For details of parameters, refer to "CHAPTER 5 OPERATION".
• When the rotational speed reaches 3000 rpm, comparative output 1 is turned ON.
• When the rotational speed decreases to 2000 rpm, comparative output 2 is turned
ON.
Set value
5k
1440
3600
\\\\\
hi
lo
3000
2000
3-11