8.3.3
Wiring Field Equipment
This section explains the signal names and terminal numbers on the relay board and how to
connect to the digital I/O modules.
n
Terminals to Wire Field Equipment
The connection terminals or power connection terminals for 19-inch rack mountable relay
board and the field are using M4 screws.
l
Wires and Ring Terminals
The wires should conform the equivalent specification of JIS C 3312.
Make sure to use ring terminals with insulation covers at the ends of the wires. The ring termi-
nals and crimping tool should be from the same vendor.
Table 8.3.3-1 Ring Terminal Dimensions
Nominal
cross sec-
tional area
(mm
2
)
Screw (mm)
Hole diame-
ter (mm)
Ring outside
diameter
(mm)
Ring terminal
length (mm)
Insulation
covering in-
side diameter
(mm)
Dimension
"C" (mm)
1.25
4
4.3 or more
8.2 or less
About 21
3.6 or more
7.0 or more
2.0
4
4.3 or more
8.7 or less
About 21
4.3 or more
7.1 or more
Insulation covering
inside diameter
Hole diameter
Ring outside diameter
Ring terminal length
C
Figure 8.3.3-1 Ring Terminal
n
Terminals to Wire Field Equipment
Pressure clamp terminals are used for connections between DIN rail mountable relay boards
and the field, and for connecting power.
SEE
ALSO
For more information about cables for pressure clamp terminals, refer to:
•
“
n
Pressure Clamp Terminal Wiring for the Terminal Board” on page 5-10
•
“
l
Connecting a Power Cable to a DIN Rail Mountable Terminal Board” on page 3-3
<8.3 Cable Connection >
8-11
IM 32Q06C10-31E
4th Edition : Jan.30,2015-00
