Rockwell-automation 6000 PowerFlex Medium Voltage Variable Frequency D Manual de usuario descargar pdf (Pagina 93)

Rockwell Automation Publication 6000-IN007A-EN-P - October 2014 93

Special Function Parameter Settings Appendix C

Analog Input

Relevant parameter: P205, P206

3/3.3 kV and 6/6.6 kV drives use the same VSB board.

Set P205 and P206 according to the following table

Stop Mode

Relevant parameter: P24, P252, P253

Description: the drive has two ways to stop the drive, ramp down or coast stop.

Instruction: P24=1 to select coast stop, P24=0 to select ramp down.

If P24=1, the output will stop immediately, so the motor will stop by inertance. If

P24=0, the output will stop the from the set frequency to 0 Hz. When the

frequency=P252*rated frequency (P252 is a percentage value), the system will be

locked.

To restart the drive if coast stop was selected, wait until it stops before restarting.

The time needed is:

Flying Start Function

Relevant parameter: P113, P114, P115, P416, P417, P438, P457, P459,

P463, K5

Description: The PowerFlex 6000 has three flying start modes:

• search the frequency from set frequency

• search the frequency from the last stop frequency added 5 Hz

• search from the maximum frequency.

Instruction: the flying start feature identifies the motor speed based on the

output current.

Voltage Level (kV) VSB proportion (kV:V) P205, P206

3 3:5 199.99

3.3 3:5 181.82

4.16 3:5 144.23

6 6:5 199.99

6.6 6:5 181.82

10 10:5 199.99

P253

FrequencyBeforeStop

MaximumFrequency

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Rockwell-automation 6000 PowerFlex Medium Voltage Variable Frequency D Manual de usuario Pagina 93