Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 57)

Publication 1760-UM002B-EN-P - March 2005
Installation 2-23
A resistor can be connected in series with the circuit shown in order to restrict
the inrush current.
Figure 2.24 Limitation of the inrush current with a resistor
Connecting DC Inputs
Use input terminals I1 to I12 to connect push button actuators, switches or 3
or 4-wire proximity switches. Given the high residual current, do not use
2-wire proximity switches.
Input signal voltage range
• I1 to I6, I9, I10
– OFF signal: 0V dc to 5V dc
– ON signal: 15V dc to 28.8V dc
• I7, I8, I11, I12
– OFF signal: < 8V dc
– ON signal: > 8V dc
Input current
• I1 to I6, I9, I10, R1 to R12: 3.3 mA at 24V dc
• I7, I8, I11, I12: 2.2 mA at 24V dc
IMPORTANT
When using a 100 nF capacitor, the drop-out time of the
input increases by 80 (66.6) ms at 50 (60) Hz.
L1
N
R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 E+ E– R11 R12 N N L
100-240V
F1
100 nF/275 V h
1 k O