319

CAUTION: Be careful to avoid specifying a braking time that is long enough to cause motor overheating. If you use DC braking, we recommend using a motor with a built-in thermistor, and wiring it to the inverter’s thermistor input (see “Thermistor Thermal Protection” on page 4-24). Also refer to the motor manufacturer’s specifications for duty-cycle recommendations during DC braking.

 

 

“A” Function

Run

 

Defaults

Func.

Name /

Description

Mode

-FE -FU

Units

Code

SRW Display

Edit

(EU)

 

(USA)

A051

DC braking enable

Two options; select codes:

 

00

 

00

 

 

 

00Disable

 

 

 

 

 

 

 

 

01Enable during stop

 

 

 

 

 

 

DCB Mode

OFF

02Frequency detection

 

 

 

 

 

A052

DC braking frequency setting

The frequency at which DC

 

0.5

 

0.5

Hz

 

 

 

braking begins,

 

 

 

 

 

 

 

 

range is from the start frequency

 

 

 

 

 

 

DCB F

0000.5Hz

(B082) to 60Hz

 

 

 

 

 

A053

DC braking wait time

The delay from the end of

 

0.0

 

0.0

sec.

 

 

 

controlled deceleration to start of

 

 

 

 

 

 

 

 

DC braking (motor free runs

 

 

 

 

 

 

 

 

until DC braking begins),

 

 

 

 

 

 

 

 

range is 0.0 to 5.0 sec.

 

 

 

 

 

 

DCB Wait

0000.0s

 

 

 

 

 

A054

DC braking force for

Level of DC braking force,

 

0.

 

0.

%

 

deceleration

 

settable from 0 to 100%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DCB V

00000%

 

 

 

 

 

 

A055

DC braking time for

Sets the duration for DC braking,

 

0.0

 

0.0

sec.

 

deceleration

 

range is from 0.0 to 60.0 seconds

 

 

 

 

 

 

DCB T

0000.0s

 

 

 

 

 

 

A056

DC braking / edge or level

Two options; select codes:

 

01

 

01

 

detection for [DB] input

00Edge detection

 

 

 

 

 

 

DCB KIND

LEVEL

01Level detection

 

 

 

 

 

Configuring Drive Parameters

Page 93
Image 93
Hitachi X200 Series instruction manual Off, Dcb F, Dcb T, DCB Kind Level