Emerson ROC364 Manual de Instruções descarregar pdf (Página 13)

ROC364 Instruction Manual

Rev 5/00 6-9

+ Positive Pulse Input (Sourced)

- Common

To wire a pulse input channel (shown in Figure Section: 6-8), connect the “+” and “-” field wires to

terminals “+” and “-” on the I/O Card pulse input channel. When the field device completes the circuit

between the “+” and “-” terminals, an LED indicator next to the terminal block lights to show activity,

and the optical circuitry is triggered, producing a signal to the ROC accumulator.

CAUTION

The Pulse Input Source channel is designed to operate only with non-powered

discrete devices such as “dry” relay contacts or isolated solid-state switches. Use of

the channel with powered devices may cause improper operation or damage.

ROC-POWERED

PULSE DEVICE

6.65K

A13 to A16

DOC0310A-R32

COM

Figure Section: 6-8. Pulse Input Wiring

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Emerson ROC364 Manual de Instruções Página 13