Allen-Bradley 2-D Manual de Instalação descarregar pdf (Página 21)

Chapter 2 - Installation/Wiring

2–7

Use P46 – [Input Mode] to select the control

method for start, stop, and direction control.

There are four settings from which to choose:

 Setting 0 – three wire control (this is the

factory default setting).

 Setting 1 – two wire “run forward/run

reverse”control. Note: The “run” inputs must

be maintained.

 Setting 2 – program keypad module control.

See page 3–1.

 Setting 3 – momentary “run forward/run

reverse” control. Note: The “run” inputs do

not need to be maintained.

Reverse

Start

Common

Stop

Signal Specification

 







TerminalTB3

Run Reverse

Run Forward

Common

Stop

Signal Specification











TerminalTB3

Run Reverse

Run Forward

Common

Stop

Signal Specification











TerminalTB3

Internal 12V supply

Á If

both Run Forward and Run Reverse inputs are closed

at the same time an undetermined state could occur

Figure 2.6 - TB3 Three Wire control (Setting 0)

Figure 2.7 - TB3 Two wire Run forward/run reverse

control (Setting 1)

Figure 2.8 - TB3 Momentary Run forward/run

reverse" control (Setting 3)

Control Wiring (continued)

Â Do

not exceed control wiring length of 15 meters (50

feet). Control signal cable length is highly dependent

on electrical environment and installation practices.

o improve noise immunity the control terminal block



must be connected to earth ground.

Consult factory for longer control signal cable length

applications.

Explanation of Symbols:









ATTENTION: The program keypad

module stop key simulates momentary

pushbutton operation. For “two wire”

control schemes (P46 – [Input Mode],

setting “1”) the program keypad module

stop button will only provide a “stop”

function while the stop key is depressed.

ATTENTION: When changing the

parameter setting for P46 – [Input

Mode], you must cycle power for the

change to take effect.



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Allen-Bradley 2-D Manual de Instalação Página 21

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