Schneider Electric vw3-a58101 Manuel D’Utilisation

83

(1) 100% corresponds to the nominal torque of a motor with a power rating equal to that associated with the 

speed controller for "high torque" applications.

(2) In corresponds to the speed controller nominal current indicated in the catalog and on the speed controller 

identification label for "high torque" applications.

(3) Yes if SFt = LF, No if SFt = HF1 or HF2

Code

Description

Adjustment range

Factory setting

t

t

t

tL

L

L

LI

I

I

I

Trq.Limit  _ %

0 to  200% (1)

200%

The torque limit is used to limit the maximum motor torque.

C

C

C

CL

L

L

LI

I

I

I

nt. I Lim -  A

0 to 1.36 In (2)

1.36 In 

The current limit is used to limit motor overheating.

A

A

A

Ad

d

d

dC

C

C

C

Auto DC Inj.

No-Yes

Yes

Used to deactivate automatic DC injection braking on stopping.

P

P

P

PC

C

C

CC

C

C

C

Motor P Coef

0.2 to 1

1

Defines the relationship between the speed controller nominal power and a less powerful motor 
when a logic input has been assigned to the motor switching function.

S

S

S

SF

F

F

Ft

t

t

t

Sw Freq. Type

LF-HF1-HF2

LF

Used to select a low switching frequency (LF) or a high switching frequency (HF1 or HF2). HF1 
switching is designed for applications with a low load factor without derating the speed controller. If 
the thermal state of the speed controller exceeds 95 %, the frequency automatically changes to 2 
or 4 kHz depending on the speed controller rating. When the thermal state of the speed controller 
drops back to 70 %, the selected switching frequency is re-established. HF2 switching is designed 
for applications with a high load factor with derating of the speed controller by one rating : the drive 
parameters are scaled automatically (torque limit, thermal current, etc).

S

S

S

SF

F

F

Fr

r

r

r

Sw Freq. -  kHz

0.5-1-2-4-8-12-16 kHz

acc. to controller rating

Used to select the switching frequency. The adjustment range depends on the SFt parameter.
If SFt = LF : 0.5 to 2 or 4 kHz acc. to the controller rating
If SFt = HF1 or HF2 : 2 or 4 to 16 kHz acc. to the controller rating
The maximum operating frequency (tFr) is limited according to the switching frequency :

n

n

n

nr

r

r

rd

d

d

d

Noise Reduct

No-Yes

(3)

This function modulates the switching frequency randomly to reduce motor noise.

S

S

S

SP

P

P

PC

C

C

C

Special motor

No-Yes

No

This function with "yes" extends the adjustment range for the UFr parameter in the adjust menu for 
adaptation to the special motors mentioned at the start of this section. Can only be accessed in the 
"Handling" and "General use" macro-configurations.
NO : normal motor
YES : special motor
PSM : small motor

SFr(kHz)

0.5

1

2

4

8

12

16

tFr (Hz)

62

125

250

500

500

500

500

GP_ATV58_EN.fm  Page 83  Mardi, 2. avril 2002  6:09 18