3–16

“A” Group: Standard Functions

Frequency-related Functions

Frequency Limits – Upper and lower limits can be imposed on the inverter output frequency. These limits will apply regardless of the source of the speed refer- ence. You can configure the lower frequency limit to be greater than zero as shown in the graph to the right. The upper limit must not exceed the rating of the motor or capability of the machinery.

Output

frequency

A 61 Upperlimit

Settable

range

A 62 Lowerlimit

0

Frequency command

 

 

 

 

“A” Function

Run

 

Defaults

 

 

 

 

 

 

 

 

 

 

 

 

 

Func.

Name /

Description

Mode

–FE

–FU

–FR

Units

 

 

Edit

 

 

Code

SRW Display

(CE)

(UL)

(Jpn)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A_61

Frequency upper limit

Sets a limit on output

0.0

0.0

0.0

Hz

 

 

 

setting

 

frequency less than the

 

 

 

 

 

 

 

 

 

 

maximum frequency (A_04)

 

 

 

 

 

 

 

 

LIMIT H

000.0Hz

 

 

 

 

 

Configuring ParametersDrive

 

 

Range is 0.5 to 360.0 Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.0 ..setting is disabled

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

>0.1 setting is enabled

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A_62

Frequency lower limit

Sets a limit on output

0.0

0.0

0.0

Hz

 

 

 

setting

 

frequency greater than zero

 

 

 

 

 

 

 

 

 

 

Range is 0.5 to 360.0 Hz

 

 

 

 

 

 

 

 

LIMIT L

000.0Hz

 

 

 

 

 

 

 

 

0.0 ..setting is disabled

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

>0.1 setting is enabled