Schneider Electric Altivar 58 VW3-A58101 Uživatelský manuál stáhnout pdf (Strana 30)

ALTIVAR



58 Keypad Display VVDED397047US R8/01

Chapter 2 — Menus 08/01

dc I at rest - A

SdC

DC injection braking current level

if tdC is set to continuous.

0.1 to 1.36 of

[1]

Varies

according

to drive

controller

size.

NST Thresh-Hz FFt Freewheel stop trip threshold:

when a stop on ramp or fast stop

is requested,

0 to HSP 0 Hz

the type of stop selected is activated until the speed falls below

this threshold. Below this threshold, freewheel stop is

activated. This parameter can only be accessed if the R2 relay

is not assigned to the “BLC: Brake Logic” function, and if an “on

ramp” or “fast” type stop has been selected in the 3—Drive

menu under type of stop (Stt).

Jump Freq. - Hz

JPF

Jump frequency with a bandwidth

of +/- 2.5 Hz around JPF.

0 to HSP 0 Hz

This function is used to suppress speeds which cause

mechanical resonance.

Table 6: 2—Fixed Set of Adjustment Parameters (Continued)

Parameter Code Description

Adjustment

Range

Factory

Setting

[1]

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

controller nameplate.

NOTE: DC Inj.

Current Level is

only available if

tdC is set to

continuous.

NO HOLDING TORQUE

• DC injection braking does not provide holding torque at zero

speed.

• DC injection braking does not function during loss of power or

drive controller fault.

• When required, use separate brake for holding torque.

Failure to follow these instructions can result in death, serious

injury, or equipment damage.

WARNING

EXCESSIVE DC INJECTION BRAKING

Application of DC injection braking for long periods of time can cause

motor overheating and damage. Protect the motor from extended

periods of DC injection braking.

Failure to follow this instruction can result in injury or equipment

damage.

CAUTION

NOTE: Additional

parameters appear

in this menu if

certain Macro-

Configurations are

selected. See

Tables 7–9.

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 111 112

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