Schneider Electric Altivar 58 VW3-A58101 Instrukcja Użytkownika Pobierz pdf (Strona 43)

VVDED397047US R8/01 ALTIVAR



58 Keypad Display

08/01 Chapter 2 — Menus

DecRamp Coeff

dCF

Coefficient for reducing the

deceleration ramp time when a logic

input has been assigned to the Fast

Stop function.

For example:

If dec=20 s, setting dCF to 2 results in a

10 s dec ramp setting.

1 to 10 4

Trq.Limit1 -%

tLI

Torque limit allows limitation of the

maximum motor torque.

0 to 200%

torque

200%

Int.I Lim -A

CLI

Current limit used to limit the maximum

motor heating.

0 to 1.36 of

[2]

1.36 of I

[2]

Auto DC Inj.

AdC

Allows deactivation of automatic DC

injection at stop.

No - Yes Yes

Mot P Coef.

PCC

Defines the ratio between the nominal

drive controller power and the motor

with the lowest power rating when a

logic input is assigned to the motor

switching function (see page 62).

0.2 to 1 1

Sw. Freq. Type

SFt

Allows selection of the type of switching

frequency.

• LF allows adjustment between 0.5

and 4 kHz using the SFr parameter.

LF - HF1 -

HF2

[4]

• HF1 and HF2 allow adjustment between 4 and 16 kHz:

— HF1 is for applications with a low duty cycle, without derating

the drive controller. If the drive controller thermal state goes

above 95%, the switching frequency automatically goes to

2 or 4 kHz (depending on rating). When the thermal state returns

to 70%, the switching frequency returns to the set value.

— HF2 is for machines with a high duty cycle with derating of the

drive controller by one power rating. The drive parameters

(current limit, thermal current, etc.) are automatically scaled.

Sw Freq -kHz

SFr

Selection of switching frequency. The

range depends on the SFt parameter.

The maximum operational frequency

(tFr) is limited depending on the

switching frequency:

LF: 0.5-1-2-

4 kHz

HF1 or HF2:

4- 8-12-16

kHz

[4]

LF: 4 kHz

HF1 or HF2:

(depending

on controller

rating)

Table 11: 3—Drive Menu Parameters (Continued)

Parameter Code Description

Adjustment

Range

Factory

Setting

[1]

Depending on the position of the 50/60 Hz switch. Ensure that the switch setting

matches the input frequency (see page 13).

[2]

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

nameplate.

[3]

The factory setting depends on the macro-configuration used: No for Material Handling,

Yes for General Use and Variable torque.

[4]

Refer to the drive controller instruction bulletin, VVDED397048US, for duty cycle ratings

of the drive controllers.

★ These parameters are available only with the I/O extension card installed.

NOTE: DecRamp

Coeff is only

available if fast

stop is enabled.

NOTE: Mot P

Coef. is only

available if

motor switching

is enabled.

NOTE: Modifying

SFt causes the

following

parameters to

revert to factory

settings:

3—Drive Menu:

nCr, CLI, SFr, nrd

2—Adjust Menu:

itH, IdC, Ibr, Ctd

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 111 112

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