Diodes And Inputs Connected In Series; Resistors And Inputs Connected In Parallel - Mitsubishi FX1N-14MR-ES/UL Hardware Manual

FX1N Series Programmable Controllers
5.1.3

Diodes and Inputs Connected in Series

Vdrop across the diode Max. 4V
No more than 2 LEDs should be connected in series.
24V
X
S/S
0V
5.1.4

Resistors and Inputs Connected in Parallel

Parallel resistance Rp: FX
Rb. See equation 1 for Rb calculation.
Alternatively; Current leakage: FX
value, then add Rb. See equation 2 for Rb calculation.
Parallel LED
Rb ≤
Eqn 1 :
Rb ≤
Eqn 2 :
FX
1N
= 15kΩ. If resistance Rp is less than the stated value, then add
1N
1N
4Rp
15 - Rp
Rp
6
I - 1.5
Rb
= 1.5mA. If the current leakage is greater than the stated
24V
X
S/S
0V
FX , FX
0N 2N
Extension
block
X
S/S
5-4
Inputs 5.