Schneider Electric ALTIVAR 58 TRX Guia de Instalação descarregar pdf (Página 66)

Chapter 2—Menus VVDED397047USR6/03

5—I/O Menu 06/2003

Ramp Switching

This function allows switching between the first and second ramps.

The first ramps are ACC and dEC, the second ramps are AC2 and

dE2. There are two ways to activate the function:

• Assign a logic input to RP2 and close the assigned input (set it to

state 1).

• By detection of a frequency threshold. This must be configured

with the Frt parameter.

If a logic input is assigned to the function, ramp switching can only be

initiated by the assigned input.

Jog

A logic input can be assigned to the Jog function to define a motor

speed from 0 to 10 Hz. A run command (FWD or REV) is also

required.

If the Jog contact is closed (set to state 1) and then a run command is

given:

• The acceleration ramp is 0.1 s.

• The deceleration ramp will be 0.1 s when the run command is

removed.

If a run command is given and then the Jog contact is closed (set to

state 1):

• The acceleration ramp (ACC) is 0.1 s if the motor speed is less

than the programmed Jog speed.

• The deceleration ramp (dEC) is followed if the motor speed is

higher than the programmed Jog speed.

When the Jog contact is opened (set to state 0), the ACC and dEC

settings are used to adjust the motor speed.

The following Jog parameters can be modified in the 2—Adjust menu:

• Jog speed (JOG)

• Delay between jog pulses (JGt)

+Speed/-Speed

There are two types of operation for +Speed/-Speed:

1. Use of pushbuttons. Two logic inputs are required in addition to

the run direction inputs. The +Speed input increases the speed

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Schneider Electric ALTIVAR 58 TRX Guia de Instalação Página 66