Spectrum-controls 1794sc-IF8IU Manual do Utilizador descarregar pdf (Página 14)

2-4 Flex™ IO Isolated Universal Input Module

User'sManualPub.0300231‐01Rev.A

2.3.1 Wiring the Terminal Base Units (1794-TB3G shown)

Attention

Do not daisy chain power or ground from the terminal base unit to any

ac or dc digital module terminal base unit.

Daisy-chaining

Note: All modules must be frequency or IF8IU modules for this

configuration.

Wiring when total current draw is less than 10A

Individual

Note: Use this configuration if using any “noisy” dc digital I/O modules in

your system.

IF8IU module wiring separate from digital wiring

Power

Digital Input

Module

IF8u

Module

Digital Input

Module

24 VDC

Power

IF8u

Module

IF8u

Module

Frequency Input

Module

24 VDC

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 55 56

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Spectrum-controls 1794sc-IF8IU Manual do Utilizador Página 14