Rockwell-automation 1794-IH16 FLEX I/O 125V dc Digital Input Module Manual de usuario descargar pdf (Pagina 3)

FLEX I/O 125V dc Digital Input Module 3

Publication 1794-IN118A-EN-P - June 2008

Configure Your Input Module

You configure your input module by setting bits in the configuration word (word 3).

Set the Input Filter Time for the 1794-IH16

To set the input filter time, set the associated bits in the output image

(complementary word) for the module.

Input Filter Times

Dec 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Oct 17 16 15 14 13 12 11 10 7 6 5 4 3 2 1 0

Read I15 I14 I13 I12 I11 I10 I9 I8 I7 I6 I5 I4 I3 I2 I1 I0

Write Not used = Set to 0 Input filter

FT1 12-15

Input filter

FT0 0-11

Where I = Input

FT0 = Input filter time for inputs 0-11

FT1 = Input filter time for inputs 12-15

Bits Description Selected Filter Time

02 01 00 Filter Time for inputs 00...11

05 04 03 Filter Time for inputs 12...15

0 0 0 Filter Time 0 (Default) 0.25ms

0 0 1 Filter Time 1 0.50ms

0 1 0 Filter Time 2 1ms

0 1 1 Filter Time 3 2ms

1 0 0 Filter Time 4 4ms

1 0 1 Filter Time 5 8ms

1 1 0 Filter Time 6 16ms

1 1 1 Filter Time 7 32ms

O:010

FT = 00...11

09 08 07 06 05 04 03 02 01 0015 14 13 12 11 10

Dec.

FT = 12...15

Specifications - FLEX I/O 125V dc Digital Input Module

Specification Description

Number of I/O channels 16, nonisolated, sinking

Module location Cat. No. 1794-TB3, -TB3S

On-state voltage 90V dc minimum

125V dc nominal

146V dc maximum

On-state current 1.0mA minimum

2.0mA nominal at 125V dc

3.0mA maximum

Off-state voltage 20V dc maximum

Off-state current 0.8mA minimum

Input impedance 60K ohms nominal

Isolation voltage 250V (continuous), Basic Insulation Type, between field side and system

Type tested at 1706V dc for 60 s, between field side and system

No isolation between individual channels

Flexbus current 80mA

Power dissipation 6W maximum @ 146V dc

Thermal dissipation 20.472 BTU/hr @ 146V dc

Indicators (field side indication,

customer device driven)

16 yellow status indicators

Input filter time

(1)

Off to On

On to Off

(1)

Input off-to-on filter time is the time from a valid input signal to recognition by the module.

Input on-to-off filter time is time from the input signal dropping below the valid level to recognition by the module.

0.25ms, 0.5ms, 1ms, 2ms, 4ms, 8ms, 16ms, 32ms

General Specifications

Specification Description

Terminal base screw torque Determined by installed terminal base

Dimensions (with module installed)

H x W x D

94 x 94 x 69 mm

3.7 x 3.7 x 2.7 inches

External dc power supply voltage 125V dc nominal

External dc power voltage range 90...146V dc (includes 5% ac ripple)

North American temp code T4

Keyswitch position 1

Enclosure type rating None (open-style)

Wire size Determined by installed terminal base

Wiring category

(1)

Use this Conductor Category information for planning conductor routing. Refer to Industrial Automation Wiring and

Grounding Guidelines, publication 1770-4.1

2- on signal ports

1 2 3 4

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