Schneider Electric Altivar 58 VW3-A58101 Uživatelský manuál stáhnout pdf (Strana 28)

ALTIVAR

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58 Keypad Display VVDED397047US R8/01

Chapter 2 — Menus 08/01

Table 6: 2—Fixed Set of Adjustment Parameters

Parameter Code Description

Adjustment

Range

Factory

Setting

Freq. Ref. - Hz

LFr

Appears when drive controller

command from the keypad display

has been activated using the LCC

LSP to HSP

parameter in the 4—Control menu (see page 49).

Acceleration -s

Deceleration -s

ACC

dEC

Acceleration and deceleration

ramp times. Defined as time

between 0 and FRS.

0.05 to 999.9

3 s

Low Speed - Hz

LSP

Low speed

0 to HSP 0 Hz

High Speed - Hz

HSP

High speed. Ensure that this

adjustment is suitable for the

motor and the application.

LSP to tFr 50/60 Hz

depending

on switch

setting

Gain - %

FLG

Frequency loop gain. This

parameter allows adjustment of

0 to 100 20

the response time of the drive controller to sudden changes in

the motor load. Decreasing the gain parameter slows the

response time of the drive controller. Increasing the gain

parameter makes the drive controller respond more quickly.

This parameter should be increased in applications where the

undesirable changes in motor speed occur due to changes in

motor load. Applications that have fast cycle times or high

torque requirements may require an increase in gain.

Stability - %

StA

Frequency loop stability.

This parameter allows adjustment

of speed overshoot of the drive

0 to 100 20

controller to sudden changes in the motor load. Increasing the

stability setting dampens the overshoot. This parameter should

be adjusted with the gain setting to tune the drive controller

response to meet the desired performance on applications that

have fast cycle times or high torque requirements.

[1]

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

controller nameplate.

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 111 112

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