Chapter 5 Parameters|VFD-B Series

„ Auto Restart after Fault

Applications

Purpose

Functions

Air conditioners,

remote pumps

For continuous and

reliable operation

without operator

intervention

The AC motor drive can be

restarted/reset automatically up to 10

times after a fault occurs.

Related

Parameters

08-14~08-21

„ Emergency Stop by DC Brake

Applications

Purpose

High-speed rotors

Emergency stop

without brake

resistor

Functions

AC motor drive can use DC brake for

emergency stop when a quick stop is

needed without brake resistor. When

used often, take motor cooling into

consideration.

Related

Parameters

08-00

08-02

08-03

„ Over-torque Setting

Applications

Purpose

Pumps, fans and

extruders

To protect

machines and to

have continuous/

reliable operation

Functions

Related

Parameters

The over-torque detection level can be

set. Once OC stall, OV stall and over-

torque occurs, the output frequency

will be adjusted automatically. It is

suitable for machines like fans and

pumps that require continuous

operation.

06-00~06-05

„ Upper/Lower Limit Frequency

Applications

Purpose

Functions

Pump and fan

Control the motor

speed within

upper/lower limit

When user cannot provide

upper/lower limit, gain or bias from

external signal, it can be set

individually in AC motor drive.

Related

Parameters

01-07

01-08

„ Skip Frequency Setting

Applications

Purpose

Functions

Pumps and fans

To prevent

machine vibrations

The AC motor drive cannot run at

constant speed in the skip frequency

range. Three skip frequency ranges

can be set. It is used to smooth

vibration at certain frequencies.

Related

Parameters

08-00~08-13

5-20

Revision July 2008, BE16, SW V4.08 & V5.00