NSH5-232UL-3M Omron, NSH5-232UL-3M Datasheet - Page 78

• Manufacturer Part Number: NSH5-232UL-3M
• Description: 3m RS232 Cable For NSH5
• Manufacturer: Omron

Specifications of NSH5-232UL-3M

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Connection Method
RS-422A Wiring
Ground and Shield Wiring
56
Note
Perform the following connections, shield wiring, and grounding in any com-
munications system using the Removable Box. Incorrect connections may
cause a host communications error.
RS-422A Terminal Block on
Removable Box
RS-422A
Connector
(1) Ground the shield only to the host (PLC) to prevent malfunctions due to
(2) Recommended cables: TKVVBS4P-03 (100 m Tachii Electric Wire) or
• Connecting the Removable Box D-Sub Connector
• Ground Line Wiring
• RS-422A Cable Shield Wiring
Use twisted-pair wires for SDB and SDA, and for RDB and RDA.
(8-pin terminal block)
Be sure to fasten the screws on both sides of the D-Sub connector. If
these screws are not fastened, the NSH5 PT's functional ground terminal
and the Removable Box's FG will not be connected.
1. Normally, ground the Removable Box as shown in Figure A on the fol-
2. If a source of noise, such as a motor or inverter, is grounded to the same
Be sure to connect the shield on the RS-422A cable. If the shield is not
connected, a host communications error may occur.
When connecting the ground terminals on all Units and the functional
ground, and grounding the line at one location to 100 Ω or less, connect
the shield only at one end of each line, as shown in Figure A.
If the Removable Box's functional ground terminal is not grounded, con-
nect the shield at both ends of each line, as shown in Figure B.
If a CJ1W-CIF11 is also connected in the system, connect the lines and
shield as shown in Figure B.
The Removable Box is equipped with a functional ground (
ground potential differences.
AWG22 shielded cable.
Functional ground
lowing page.
• Connect the ground terminals on all Units and the functional ground,
• Short the PLC's LG terminal and the GR terminal.
• The ground wire must be 2 mm
• For detailed grounding instructions, refer to the operation manual for
panel, do not ground the Removable Box's functional ground terminal
(
and ground the line at one location to 100 Ω or less.
the Communications Unit.
Name
SDB
SDA
RDB
RDA
), as shown in the Figure B.
Pin No.
8
3
4
1
2
(See note 1.)
Shield
note 2.)
(See
2
Shield ground terminal
Pin No.
or larger.
PLC
Name
SD+
RD+
RD−
SD−
RS-422A
Connector
Section 4-5
).