Schneider Electric Altivar 58 VW3-A58101 Manual de usuario descargar pdf (Pagina 32)

ALTIVAR



58 Keypad Display VVDED397047US R8/01

Chapter 2 — Menus 08/01

Additional Adjustment Parameters for Material Handling

Table 7 lists the additional parameters that are accessible when the

macro-configuration is set to Material Handling.

Table 7: 2—Additional Adjustment Parameters with Material

Handling Macro-Configuration

Parameter Code Description

Adjustment

Range

Factory

Setting

IR Compens. - %

UFr

IR Compensation.

Allows adjustment of the default

value of IR Compensation or the

value measured during auto-tuning.

0 to 150%

0 to 800%

100%

The adjustment range is extended to 800% if the SPC

parameter (special motor) is set to Yes in the 3—Drive menu

(see page 44).

This parameter is used to adjust low speed torque for optimal

performance. Adjust this parameter to compensate for the

resistive voltage drop of the motor stator windings and the

conductors connecting the motor and drive controller. (If using

special motors such as synchronous permanent magnet

motors, synchronous wound field motors, or synchronous

reluctance motors, the adjustment range is 0 to 800%.) This

parameter is typically used to boost torque performance at low

speed operation. If an autotune is performed, adjustment of

this parameter is usually not required.

Slip Comp. - %

SLP

Slip Compensation

Allows adjustment of the slip

compensation around a fixed value

set by the nSP parameter (motor

nominal speed) in the 3—Drive

menu (see page 39).

0 to 150% 100%

This parameter is used to adjust the slip compensation to

improve speed regulation. Induction motors develop torque

based on the slip, which is the difference between the speed

of the rotating magnetic field in the rotor and the speed of the

stator. As the load increases, the slip increases to produce the

necessary torque.

In applications where the change in speed due to slip is

undesirable, the slip compensation should be increased.

When this parameter is increased, the drive controller will

automatically increase the output frequency. The amount of

increase is proportional to the increase of the load, allowing

one setting for the entire speed range.

[1]

= drive controller constant torque output current rating shown on the drive

controller nameplate.

★ Parameters appear if an I/O extension card is installed.

NOTE: UFr and

SLP are unitless

values. The

percent value is

only to provide a

range of numbers.

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 111 112

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