ABB RCNA-01 Manual de usuario descargar pdf (Pagina 220)

100

101

216 Parameter listing and descriptions

ACH550-01 User's Manual

2006 UNDERVOLT CTRL 0…2

Sets the DC undervoltage controller on or off. When on:

• If the DC bus voltage drops due to loss of input power, the

undervoltage controller decreases the motor speed in order to keep

the DC bus voltage above the lower limit.

• When the motor speed decreases, the inertia of the load causes

regeneration back into the drive, keeping the DC bus charged, and

preventing an undervoltage trip.

• The DC undervoltage controller increases power loss ride-through on

systems with a high inertia, such as a centrifuge or a fan.

0 =

DISABLE – Disables controller.

1 =

ENABLE(TIME) – Enables controller with a 500 ms time limit for the

operation.

2 =

ENABLE – Enables controller without a maximum time limit for the

operation.

2007 MINIMUM FREQ -500…500 Hz

Defines the minimum limit for the drive output frequency.

• A positive or zero minimum speed value defines two ranges, one

positive and one negative.

• A negative minimum speed value defines one speed range.

• See the figure.

Note: Keep

MINIMUM FREQ ≤ MAXIMUM FREQ.

2008 MAXIMUM FREQ 0…500 Hz

Defines the maximum limit for the drive output frequency.

Code Description Range

P 2007

P 2008

Freq

-(P 2007)

-(P 2008)

P 2008

P 2007

Frequency range allowed

Time

Freq

Time

2007 value is >

2007 value is < 0

1 2 ... 215 216 217 218 219 220 221 222 223 224 225 ... 473 474

Comentarios a estos manuales

Sin comentarios

ABB RCNA-01 Manual de usuario Pagina 220

Comentarios a estos manuales

Relacionado con productos y manuales para De medición, control y control ABB RCNA-01