Rockwell-automation 1794-IM16_OM16 FLEX I/O 240V AC Input and Output M Manuale Utente Scaricare il pdf (Pagina 3)

FLEX I/O 240V AC Digital Input and Output Modules 3

Publication 1794-IN123B-EN-P - May 2009

Connecting Wiring for your 1794-OM16 Module

(using a 1794-TBN or TBNF Terminal Base)

1. Connect individual output wiring to terminals 0...15 on the 16-33 row (B),

and the 34-51 row (C) as indicated in Table 1.

2. Auxiliary terminal blocks are required to connect the associated L2

common for each channel. Connect the L2 side of the load together and

then connect to L2 on the power supply.

3. Connect 240V AC power L1 to terminal 34 on the 34-51 row (C).

4. Connect 240V AC common L2 to terminal 16 on the 16-33 row (B).

5. If daisychaining power to the next terminal base, connect a jumper from

terminal 51 (240V AC L1) on this base unit to terminal 34 on the next base

unit.

6. If continuing 240V AC common (L2) to the next base unit, connect a

jumper from terminal 33 (240V AC common L2) on this base unit to

terminal 16 on the next base unit.

Note: Total current draw through terminal base connection is limited to 10A.

Separate power connections to each terminal base may be necessary.

Configure Your AC Module

Set the Input Filter Time for the 1794-IM16 Module

You can increase the input filter time (FT) for channels 00...15 by setting the

corresponding bits in the output image table (complementary word) for the module.

For example, setting bits 00, 01 and 02 as shown below sets the off-to-on filter time

for inputs 00...11 to 12 ms. For other settings, refer to the Input Filter Time table.

To increase the filter time, set the bits according to Input Filter Times.

Input Filter Times

Specifications

Image Table Memory Map for the 1794-IM16 Module

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 Input Data

Read Bit 15 Counter

Write R EF EC Reserved Filter Time 12...15 Filter Time 0...11

Where I = Input status

R = Reserved

EF = Enable Filter 0 = Enabled

EC = Enable Counter 0 = Enabled

Image Table Memory Map for the 1794-OM16 Module

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 Not used - Set to 0

Write O15 O14 O13 O12 O11 O10 O9 O8 O7 O6 O5 O4 O3 O2 O1 O0

Where O = Output

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

FT = 12...15 FT = 0...11

O:010

Dec.

76543

FLL

I:000

Fill File

Source

Destination

Length

#O:010

Write FT to

complement of

input module

Write filter time on system startup.

21 0

= 44 Octal or 36 Decimal

010100

Bits Description Maximum Filter

Time (ms)

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

Time

05 04 03 Filter Time for inputs 12...15 Off to On On to Off

0 0 0 Filter Time 0 (Default) 256 μs 7.5 26.5

0 0 1 Filter Time 1 512 μs 8 27

0 1 0 Filter Time 2 1 ms 9 28

0 1 1 Filter Time 3 2 ms 10 29

1 0 0 Filter Time 4 4 ms 12 31

1 0 1 Filter Time 5 8 ms 16 35

1 1 0 Filter Time 6 16 ms 24.5 44

1 1 1 Filter Time 7 32 ms 42 60.5

Specifications - FLEX I/O 240V AC Input Module 1794-IM16

Attribute Value

Number of I/O channels 16, nonisolated

Module location Cat. No. 1794-TBN

On-state voltage 159V AC min @ 47...63 Hz

240V AC nom @ 47...63 Hz

264V AC max @ 47...63 Hz

On-state current 5.30mA minimum @ 159V AC, 47Hz

11mA nominal @ 240V AC, 60Hz

13.29mA maximum @ 264V AC, 63Hz

Off-state voltage, max 40V AC

Off-state current, max 2.6 mA

Isolation voltage 250V (continuous), Basic Insulation Type

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

No isolation between individual channels

+5V Field Bus current 32 mA

Power dissipation, max 6 W @ 264V AC

Thermal dissipation, max 20.47 BTU/hr @ 264V AC

Indicators (field side) 16 yellow status indicators

Input impedance 22.2 kΩ

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.

Refer to Input Filter Times table

Inrush current, max 450mA

1 2 3 4

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