Expansion I/O Board - Optional; Expansion I/O Board - Epson RC520 Manual

Setup & Operation 7.1 Expansion I/O Board (Expansion I/O Board - Optional)

7. Expansion I/O Board - Optional

7.1 Expansion I/O Board

Install an expansion I/O board in an ISA slot in the Control Unit when extra inputs and/or
outputs are desired.
Each additional I/O board provides 32 inputs and 32 outputs. The number of I/Os that
can be expanded is subject to the number of ISA slots available in the type of Control
Unit used.
The I/O bit numbers #0 through #47 are reserved for the three Drive Units, DU1 through
DU3.
The input and output bit #s are assigned as follows. For the Expansion I/O boards, the
I/O Bit #s start with #48.
The types of the optional expansion I/O board are listed below.
Protected Expansion
I/O board
Protected Expansion
I/O board
Expansion I/O
board
■ Use the PNP-type of protected Expansion I/O Board for CE conformance. Be
sure to wire correctly. Improper wiring may cause serious safety problems as it
may make the Manipulator move unusually.
■ Be sure to wire the output circuit properly. Especially the expansion I/O board
has no protection circuitry for short-circuit and reverse-connection. Improper
CAUTION
wiring may cause malfunction of the parts on the board and then improper
function of the robot system.
RC520 Rev.7
Input Bit # Output Bit #
0 to 15
16 to 31
32 to 47
48 to 79
80 to 111
. .
.
Input/Output
Name
Type
NPN
PNP
NPN
0 to 15 Standard drive unit
16 to 31 Additional drive unit (DU2)
32 to 47 Additional drive unit (DU3)
48 to 79 The 1st expansion I/O board
80 to 111 The 2nd expansion I/O board
. .
.
Output Circuit
Hybrid IC SEP007
Hybrid IC SEP008
Transistor array and photo
coupler
Applicable Hardware
(DU1)
. .
.
Overcurrent
Protection
Available
Available
Not Available
63