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46 Chapter 5 Parameter Introductions

EV2000 Series Universal Variable Speed Drive User Manual

F0.21 Cut-off point used for

manual torque boost

Range:0~50%【10.0%】

F0.21 defines the ratio of the cut-off frequency used for

manual torque boost to the basic operating

frequency(defined by F0.06), as shown in Fig. 5-3 as fz.

This cut-off frequency adapts to any V/F curve defined

by F0.14.

5.2 Parameters of Reference Frequency

(Group F1)

F1.00 Reference frequency

curve selection

Range:000~111【000】

F1.01 Gain of reference

frequency selector

Range:0.00~9.99

【1.00】

F1.02 Reference constant of

filter

Range:0.01~50.00s

【0.50s】

F1.03 Max input pulse frequency

Range:0.1~50.0kHz

【10.0kHz】

F1.04 Min reference of curve 1

Range:0.0%~100.0%

【0.0%】

F1.05 Frequency corresponding

to the Min reference of curve 1

Range:0.0~650.0Hz

【0.00Hz】

F1.06 Max reference of curve 1

Range:0.0%~100.0%

【100.0%】

F1.07 Frequency corresponding

to the Max reference of curve 1

Range:0.0~650.0Hz

【50.00Hz】

F1.08 Min reference of curve 2

Range:0.0%~100.0%

【0.0%】

F1.09 Frequency corresponding

to the Min reference of curve 2

Range:0.0~650.0Hz

【0.00Hz】

F1.10 Max reference of curve 2

Range:0.0%~100.0%

【100.0%】

F1.11 Frequency corresponding

to the Max reference of curve 2

Range:0.0~650.0Hz

【50.00Hz】

When VCI or CCI or pulse input(PULSE) is selected, the

relationship between reference and the preset frequency

is given below:

Preset frequency

Ref.

selection

F0.00

Amplify

F1.01

Filter

F1.02

Set Freq. curve

or select F1.00

Fig. 5-7 Relationship between reference and the preset

frequency

Reference frequency signal is filtered and amplified, and

then its relationship with the preset frequency is

determined by Curve 1 or 2. Curve 1 is defined by

F1.04~F1.07, and curve 2 is defined by F1.08~F1.11.

Positive and negative characteristics are shown in Fig.

5-8.

(2)

Negative

:Reference of analog signal

of VCI or CCI

: Freq.corresponding

to Min reference

Reference freq.

max

min

(1)

Positive

pulse terminal input

max

: Min. reference

min

Amin

max

min

max

min

Reference freq.

: Freq.corresponding

to Max reference

: Max. reference

max

min

Fig. 5-8 Output frequency curve

Analog input value(A) is a percentage without unit, and

100% corresponds to 10V or 20mA. Pulse frequency(P)

is also a percentage without unit, and 100%

corresponds to the Max pulse frequency defined by

F1.03.

F1.02 defines the time constant of the filter used by the

reference selector. The input signal is filtered and the

bigger the time constant, the higher the immunity level,

but the response time is prolonged with the increase of

the time constant. That is, the smaller the time constant,

the shorter the response time, but the lower the

immunity level.

F1.00 is used to select the output frequency curve when

VCI, CCI or PULSE input is selected, as shown in

Fig.5-9.

C D

VCI frequency curve selection

0 : Curve 1

0 : Curve 2

Reserved

CCI frequency curve selection

PULSE frequency curve selection

0 : Curve 1

0 : Curve 2

0 : Curve 1

0 : Curve 2

Fig. 5-9 Frequency curve selection

Where,

A: thousand’s place B: Hundred’s place

C: Ten’s place D: Unit’s place

For example, the requirements are:

Brand	Emerson
Model	EV2000 Series
Category	DC Drives
Language	English

Emerson EV2000 Series User Manual

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Emerson EV2000 Series Specifications

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