Allen-Bradley 2-D Manual do Utilizador descarregar pdf (Página 86)

Programming

5-17

Advanced Setup Group (continued)

[Break Voltage]

Sets the voltage the drive will output at [Break Frequency].

Combined with [Break Frequency], this value determines the

Volts

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[Brea

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Parameter #

Parameter Type

Read & Write

Factory Default

Minimum

115V for 230V Drive

230V for 460V Drive

0 Volts

Volts

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[Brea

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Important: [DC Boost Select] must be set to ‘‘Break

Point” to activate this parameter.

Units 1 Volt Maximum 50% of Max. Drive Rated Volts

[Max

imum Vol

tage]

Parameter # 20 Factory Default Max. Drive Rated Volts

[Max

imum Vol

tage]

Parameter Type Read & Write Minimum 25% of Max. Drive Rated Volts

Sets the highest voltage the drive will output.

Important: [Maximum Voltage] does not have to be set

greater than [Base Voltage], but the maximum drive output

is limited to [Maximum Voltage].

Units 1 Volt Maximum 110% of Max. Drive Rated Volts

[Base Voltage]

[Base Frequency]

Maximum

[Maximum Voltage]

[Maximum Frequency]

Motor Rated Maximum

Voltage

Frequency

[Break Voltage]

[Break Frequency]

Start Boost

Motor Rated '

Figure 5.7 Custom Volts-per-Hz Pattern

This pattern is active only when [DC Boost Select] is set

to ‘‘Break Point.”

The following guidelines should be followed when setting up

a custom Volts-per-Hz curve:

1. [Base Voltage] must be greater than [Start Boost].

2. If [DC Boost Select] is set to “Break Point” then:

[Base Voltage] must be greater than [Break Voltage] and

[Break Voltage] must be greater than [Start Boost].

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