Mitsubishi Electric MELSEC FX2NC-16MT-D/UL - In-Rush Currents

FX2NC Series Programmable Controllers Outputs 6.
6-14
6.3.1 In-rush currents
These currents should be kept as low possible. The root mean square (
I
rms
) <0.2A. Reference
Eqn 1 for (
I
rms
)
I
r
-In-rush current (A)
T
r
-In-rush time (sec)
I
s
-Switch current (A)
T
s
-Switch time (sec)
T
f
-Operation time (sec)
I
rms
=
I
×
T
+
I
×
T
2
rr
2
ss
T
+
T
+
T
rs f
Eqn 1
0.2A=
4
×
0.02 + 0.4
×
0.7
22
0.02+0.7+10
Ex.
I
r
I
s
T
s
T
r
T
f
Figure 6.9 :Current graph