Rockwell-automation 1771-IGD TTL Input Module Installation Instruction Instrukcja Użytkownika Pobierz pdf (Strona 11)

TTL Input Module 11

Publication 1771ĆIN022B-EN-P - September 2002

The front panel of your module contains 18 status indicators. The

green top indicator is labeled ‘‘ACTIVE.” This indicator is on when

the fuse is good. The green bottom indicator, when on, indicates you

selected high-true logic. When off, it indicates you selected low-true

logic.

Each of the 16 red status indicators light when their corresponding

input terminal senses TTL voltages in the true state.

To replace a blown fuse, proceed as follows:

ATTENTION

Remove power from the 1771 I/O chassis

backplane and field wiring arm before removing

or installing an I/O module.

• Failure to remove power from the backplane or

wiring arm could cause module damage, degra-

dation of performance, or injury.

• Failure to remove power from the backplane

could cause injury or equipment damage due to

possible unexpected operation.

1. Turn off power to the chassis.

2. Remove the module from the I/O chassis.

3. Remove the blown fuse from the fuse holder (accessible through

the slot in the side cover), and replace with a 0.5A, 250V normal

blow fuse.

4. Reinsert module into the I/O chassis.

5. Turn on power to the chassis.

Inputs per Module 16

Module Location 1771ĆA1B thruĆA4B or later I/O chassis,

1771ĆAM1, and ĆAM2 I/O chassis.

Input Voltage Rating HIGH = TRUE

LOW = TRUE

ON: 2.0 to 5.25V dc

OFF: -0.2 to +0.8V dc

ON: -0.2 to +0.8V dc

OFF: 2.0 to 5.25V dc

Customer Current Sink

Requirements

7mA maximum (source per input)

0.8mA maximum (sink per input)

Customer Supply Voltage 5.0V dc (+0.25V) Class 2

50mV peakĆtoĆpeak ripple max.

Specifications continued on next page.

Interpreting the Status

Indicators

ACTIVE

Module Active

Indicator

(green)

00 to 17 Status

Indicators (red)

HIGH

Positive Logic

Indicator

(green)

1ĆI

Replacing the Fuse

Specifications

1 2 ... 6 7 8 9 10 11 12

Komentarze do niniejszej Instrukcji

Brak uwag

Rockwell-automation 1771-IGD TTL Input Module Installation Instruction Instrukcja Użytkownika Strona 11

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Ekwipunek Rockwell-automation 1771-IGD TTL Input Module Installation Instruction