Schneider Electric ALTIVAR 58 TRX Instalační příručka stáhnout pdf (Strana 65)

VVDED397047USR6/03 Chapter 2—Menus

06/2003 5—I/O Menu

Using the Logic Inputs

Run Forward and Run Reverse

The logic input used for run reverse can be reassigned if the

application has only one rotation direction.

2-wire Control

In 2-wire control, run (forward or reverse) and stop are commanded

by the same logic input. When the logic input is closed (set to state 1),

run is commanded. When it is opened (set to state 0), stop is

commanded. See tCt on page 53 for more information.

3-wire Control

In 3-wire control, run (forward or reverse) and stop are commanded

by two different logic inputs. LI1 is always assigned to stop which is

obtained by opening LI1 (setting it to state 0). A pulse on the run input

is saved until the stop input is opened.

Whenever the drive controller is powered up or reset, the motor will

only run after resetting the Forward, Reverse, and DC injection

inputs.

WARNING

UNINTENDED EQUIPMENT OPERATION

LI1 has priority:

• If LI1 is closed while LI2 is active, the controller will respond to

LI1.

• If the LI1 input is lost while LI2 is active, the controller will respond

to LI2 and reverse directions.

The logic inputs must be programmed appropriately for the

application to prevent the motor from spinning in an unintended

direction.

Failure to follow this instruction can result in death, serious

injury, or equipment damage.

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Schneider Electric ALTIVAR 58 TRX Instalační příručka Strana 65