Epson RC420, Manual

Page: 61 / 172

Setup & Operation 7.2 Protected Expansion I/O Board (Expansion I/O Board - Optional)
RC420 Rev.9 51
7.2.2 Protected Expansion I/O Board : Input Circuit
The following diagrams illustrate cases where #48 through #79 (for the first Expansion
I/O Board) are assigned to the Protected Expansion I/O Board’s (or Expansion I/O
Board’s) inputs and outputs. The I/O number assignment depends on the controller
software settings.
Input Voltage Range : + 12 V to 24 V ± 10%
ON Voltage : + 10.8 V (Min.)
OFF Voltage : + 5 V (Max.)
Input Current : 10 mA (TYP) at + 24 V input
CAUTION
■
Use the PNP-type of wiring diagram for CE conformance. Be sure to wire
correctly. Improper wiring may cause safety problems as it may make the
Manipulator move unusually.
Protected Expansion I/O Board
Typical Input Circuit Application 1: NPN
(Same)
(Same)
(Same)
(Same)
(Same)
(Omit)
GND +DC
1 Input No.48 to 51 common
3 Input No.48
4 Input No.49
5 Input No.50
6 Input No.51
51 Input No.52 to 55 common
53 Input No.52
54 Input No.53
~
~
~
2.2 k
Ω
470
Ω