Omron CS1W-SCU21 Operation Manual page 95

9KTKPI
 9KTG CPF 9KTG %QPPGEVKQPU
Example of 4-Wire
Connections
2/4-wire switch
(DPDT)
Board

Communications
cables
PC power supply
and general control
circuit wiring
+H VJG +1 YKTKPI CPF RQYGT ECDNGU OWUV DG RNCEGF KP VJG UCOG FWEV VJG[
OWUV DG UJKGNFGF HTQO GCEJ QVJGT WUKPI ITQWPFGF UVGGN UJGGV OGVCN
Communications
cables
6JG VTCPUOKUUKQP EKTEWKVU HQT YKTG CPF YKTG EQPPGEVKQPU CTG FKHHGTGPV CU
UJQYP KP VJG HQNNQYKPI FKCITCO
Other Unit
Other Unit
0QVG  7UG VJG UCOG VTCPUOKUUKQP EKTEWKV YKTG QT YKTG HQT CNN PQFGU
 &Q PQV WUG YKTG EQPPGEVKQPU YJGP VJG YKTG UYKVEJ QP VJG $QCTF KU
UGV VQ YKTG
 +P RTQVQEQN OCETQ OQFG FQ PQV WUG HWNNFWRNGZ VTCPUOKUUKQPU YJGP VJG 
YKTG UYKVEJ QP VJG 7PKV KU UGV VQ YKTG 1VJGTYKUG VJG FCVC UGPV HTQO VJG
5GTKCN %QOOWPKECVKQPU $QCTF QT 7PKV YKNN DG FKTGEVN[ TGVWTPGF CU TGEGKXG
FCVC +P VJKU ECUG VJG $QCTF QT 7PKV ECPPQV FGVGTOKPG YJGVJGT VJG FCVC KP
VJG TGEGKXG DWHHGT KU KVU QYP UGPF FCVC QT VJG FCVC TGEGKXGF HTQO C TGOQVG
PQFG CPF VJWU ECPPQV RGTHQTO TGEGKXG RTQEGUUKPI RTQRGTN[ 6Q CXQKF VJKU
RTQDNGO CNYC[U WUG JCNHFWRNGZ VTCPUOKUUKQPU YKVJ C YKTG UGVVKPI 'KVJGT
JCNHFWRNGZ QT HWNNFWRNGZ VTCPUOKUUKQPU ECP DG WUGF YKVJ C YKTG UGVVKPI
Low-current cables
Control cables
Power cables
Power lines
Ground to 100 Ω or less.
PC power supply
and general control
circuit wiring
Ground to 100 Ω or less.
Example of 2-Wire
Connections
2/4-wire switch
(DPDT)
Not connected
Board
5GEVKQP 
300 mm min.
300 mm min.
Power lines
Steel sheet metal
200 mm min.
Other Unit Other Unit