Schneider Electric Altivar 58 VW3-A58101 Instrukcja Użytkownika Pobierz pdf (Strona 56)

ALTIVAR



58 Keypad Display VVDED397047US R8/01

Chapter 2 — Menus 08/01

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 46 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.

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.

WARNING

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 111 112

Brak uwag

Schneider Electric Altivar 58 VW3-A58101 Instrukcja Użytkownika Strona 56