Schneider Electric ALTIVAR 58 TRX Instalační příručka stáhnout pdf (Strana 73)

VVDED397047USR6/03 Chapter 2—Menus

06/2003 5—I/O Menu

External Fault

Assigning a logic input to External Fault allows an external contact

closure to stop the drive controller and motor. The stop type is

determined by the configuration of the Stt parameter (Type of Stop) in

the 3—Drive menu.

Force to Local

Permits going from serial link command to local command using the

keypad display or terminal strip, depending on the setting of the LCC

parameter in the 4—Control menu. Assigning this parameter selects a

local command when the logic input is closed (state 1).

Auto-tuning

When the assigned logic input changes to 1 an auto-tuning operation

is triggered, as parameter TUN is described on page 45 in the 3

—

Drive menu.

Auto tuning is only performed if no command has been activated. If a

Freewheel Stop or Fast Stop function is assigned to a logic input, this

input must be set to 1 (active at 0).

Encoder Inputs

(Only with an I/O extension card with encoder input, VW3A58202U)

Speed Regulation

The inputs can be used to connect an encoder for improving speed

regulation in applications where the load is changing. To program the

encoder speed feedback, configure AI3 in the 5

—I/O menu for RGI,

Encoder Feedback. Then configure the encoder type and number of

pulses in the 3

—Drive menu.

The A, A-, B, and B- inputs on the I/O option card are for use in

forward and reverse directions.

The A input can also be used with an inductive sensor or a

photoelectric detector for simplified, but less accurate regulation.

Summing Speed Reference

The setpoint from the encoder input is summed with AI1.

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Schneider Electric ALTIVAR 58 TRX Instalační příručka Strana 73