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Delta Electronics VFD-M User Manual

Page 66

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Chapter 4 Parameters|

Revision May 2008, ME14, SW V3.04

4-31

Input

Power

Allowable Max. Power Loss Time

Output

Power

Output

Voltage

Pr.33

Speed search starts with
the Master Frequency

Pr.32=1

Baseblock
Time

Pr.34

speed synchronization
detection

speed search

Allowable Max. power loss time

Pr.33

Speed search starts with
minimum output frequency

Pr.32=2

Baseblock
Time

Pr.34

Pr.36

Upper Bound of Output Frequency

Unit: 0.1Hz

Settings 0.10 Hz to 400.0 Hz

Factory Setting: 400

The Upper/Lower Bounds help prevent operation error and machine damage.

If the Upper Bound of Output Frequency is 50Hz and the Maximum Output Frequency is 60Hz,

the Maximum Output Frequency will be limited to 50Hz.

Setting of this parameter must be equal to or greater than the Lower Bound of Output

Frequency (Pr.37).

Pr.37

Lower Bound of Output Frequency

Unit: 0.1Hz

Settings 0.00 Hz to 400.0 Hz

Factory Setting: 0 Hz

Setting of this parameter must be equal to or less than the Upper Bound of Output Frequency

If the Lower Bound of Output Frequency is 10Hz, and the Minimum Output Frequency (Pr.08)

is set at 1.0Hz, then any command frequency between 1-10Hz will generate a 10Hz output

from the drive.

output frequency

Pr.36

Pr.37

Input Freq.