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Appendices

NX-series Digital I/O Unit User’s Manual (W521)

A-3 Connecting Connector-Terminal Block

Conversion Units and I/O Relay Terminals

A-3-3 Connector-Terminal Block Conversion Unit Connection Diagrams

Note 1. The polarity for input power supply connections

indicated with dotted lines (

) can be con-

nected in either direction.

2. The COM terminals and +V terminals are inter-

nally connected inside the Unit, but they must all

be wired.

Note 1. The polarity for input power supply connections

indicated with dotted lines (

) can be con-

nected in either direction.

2. The COM terminals and 0 V terminals are inter-

nally connected inside the Unit, but they must all

be wired.

Inputs and Outputs

Digital I/O

Unit

NX-MD6121-5

Connec-

tor-Terminal

Block Con-

version Unit

XW2D-20G6

Connecting

Cable

XW2Z-

X

Connection

diagram

A10

B10

CN2

A10

B10

CN1

COM

VDC

Wd m

(OUT)

COM (0 V)

Wd (m+1)

(IN)