Rockwell-automation 1794-OW8_OW8K_OW8XT Flex I/O 8 Output Relay Module Manual de usuario descargar pdf (Pagina 3)

Publication 1794-IN019H-EN-P - January 2011

Working Voltage and Isolation Voltage Ratings

Wiring to a 1794-TB2, 1794-TB3 or 1794-TB3S Terminal Base Unit

1. Connect individual output relay contact (customer load) wiring to

numbered terminals on the 0…15 row (A) as indicated in the table below.

The even numbered terminals are one pole of the relay contacts; the odd

numbered terminals are the other pole of the relay contacts.

2. Connect 24V DC return to terminal 16 on the 16…33 row (B).

3. Connect +24V DC power to terminal 34 on the 34…51 row (C).

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

terminal 51 (+V DC) on this base unit to terminal 34 on the next base unit.

5. If continuing DC common to the next base unit, connect a jumper from

terminal 33 (common) on this base unit to terminal 16 on the next base

unit.

Wiring to a 1794-TBN or 1794-TBNF Terminal Base Unit

1. Connect individual output relay contact (customer load) to even numbered

terminals 0…14 on row (B) and odd numbered terminals 1…15 on row

pole of the relay contacts; the odd numbered terminals are the other pole

of the relay contacts.

2. Connect 24V DC return to terminal 16 on the 16…33 row (B).

3. Connect +24V DC power to terminal 34 on the 34…51

row (C).

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

terminal 51 (+V DC) on this base unit to terminal 34 on the next base unit.

5. If continuing DC common to the next base unit, connect a jumper from

terminal 33 (common) on this base unit to terminal 16 on the next base

unit.

Terminal Base 24V 120V 230V Isolation Voltage

1794-TBN, 1794-TBNK,

1794-TBNF, 1794-TBNFK

AC/DC AC/DC AC/DC Dependent upon installed

module - refer to individual

installation instructions for

your specific module.

1794-TB2, 1794-TB3, 1794-TB3K,

1794-TB3S

AC/DC AC/DC

1794-TB3T, 1794-TB3TS AC/DC AC/DC

1794-TB3G, 1794-TB3GK,

1794-TB3GS

AC/DC

1794-TB32, 1794-TB32S AC/DC

1794-TBKD DC AC

ATTENTION

If multiple power sources are used, do not exceed the specified isolation

voltage.

ATTENTION

Apply only 24V DC power to the power terminals on the terminal base

unit.

Make certain that all relay wiring is properly connected before applying

any power to the module.

ATTENTION

Total current through the terminal base unit is limited to 10 A. Separate

power connections to the terminal base unit may be necessary.

ATTENTION

Do not attempt to increase load current or wattage capability beyond the

maximum rating by connecting 2 or more outputs in parallel. The slightest

variation in relay switching time may cause one relay to momentarily

switch the total load current.

ATTENTION

Apply only 24V DC power to the power terminals on the terminal base

unit.

Make certain that all relay wiring is properly connected before applying

any power to the module.

ATTENTION

When using 240V power to a relay, you must connect a snubber across the

load. Failure to connect a snubber across the load (relay contacts) can

result in generation of electromagnetic noise which could disrupt nearby

electrical equipment, including your 1794 FLEX I/O chassis. Use

Allen-Bradley part number 599-KA04 or 1401-NX1.

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

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

1794-TB2

0...15

34...51

16...33

Output Relay Contacts (customer loads)

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

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

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

1794-TB3

0...15

34...51

16...33

Output Relay Contacts (customer loads)

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

18 19 20 21 22 23 3324 25 26 27 28 29 30 31 3217

35 36 37 38 47 48 49 5034

Label placed at top of wiring area

Row A

Row B

Row C

Row A

Row B

Row C

39 40 41 42 43 44 45 46

1794-TB3S

45286

0246810121433

13 57 9 11131551

1794-TBN, 1794-TBNF

16 33

Even Numbered Terminals 0...14

34 51

Odd Numbered Terminals 1...15

45285

1 2 3 4 5 6

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