2-2
IM CW120-E
● Connector Block
Voltage input terminals Current input terminals
CW120: Supports from single-phase two-wire to three-phase three-wire circuits
Voltage input terminals: N, V1, V2
Current input terminals: CH1, CH2
CW121: Supports from single-phase two-wire to three-phase four-wire circuits
Voltage input terminals: N, V1, V2, V3
Current input terminals: CH1, CH2, CH3
● Side Panels
RS-485 screw
terminals
External control
terminals
Model with RS-232 interface Model with RS-485 interface
Power switch Power supply connector Power switch Power supply connector
PC card slot
PC card eject button PC card eject button
RS-232
connector
PC card slot
RS-232 interface
RS-232 connector : Used to connect to a PC or printer
(optional).
Internal control input (IN) terminals : Used to connect the integration
start/stop input signals.
Internal control output (OUT) terminals : Used to connect the integration
start/stop output signals.
SEE ALSO
For details of external control input/output, see Section 9.6, “External Control Input/Output.”
RS-485 interface
RS-485 screw terminals : Used to connect a shielded cable
and terminator.
SEE ALSO
For details of the RS-485 interface, see Section 11.2, “RS-485.”
2.1 Front Panel and Connector Block
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