Allen-Bradley 2-D Manual de usuario descargar pdf (Pagina 48)

5-10 Parameters and Programming

49 [PWM Frequency]

Carrier frequency for the PWM output waveform. The chart below provides

derating guidelines based on the PWM frequency setting.

Important: Ignoring derating guidelines can cause reduced drive performance.

2.0/8.0 0.1 kHz 4.0 kHz

50 [Restart Tries]

Maximum number of times the drive will attempt to reset a fault.

Faults 03 – 20 will automatically reset according to this parameter setting.

0/9 Numeric

Value

51 [Restart Time]

Time between restart attempts.

If this parameter and P50 - [Restart Tries] are both set to zero, and P46 - [Input

Mode] is not set to 3, the auto fault clear feature is enabled. This feature

automatically clears overvoltage, undervoltage, and overtemperature faults 1

second after the fault condition is removed.

If this parameter is set to zero and P50 - [Restart Tries] is not zero, then the time

between restart attempts is 1 second.

0.0/300.0 0.1

Seconds

10.0

Seconds

52 [DB Enable]

Enables/disables external dynamic braking.

Setting “0” = Disable. Settings 1 through 100 = % duty cycle braking.

This parameter cannot be programmed while the drive is running.

0/100 Numeric

Value

Program Group

No. Parameter Name/Description

Min./Max.

Range

Units

Factory

Default

12345678

100

% Output Current (A)

Carrier Frequency (kHz)

ATTENTION: The 160 Dynamic Brake Module is rated for 5%

duty cycle. Use of this package above 5% should not be used and

voids the UL rating of this device. When setting this parameter

to a value above 5% duty cycle, the resistor must be sized to avoid

overheating of the resistor package.

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 91 92

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Allen-Bradley 2-D Manual de usuario Pagina 48

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