Delta Electronics VFD-M manual Pr.36, Pr.37

Chapter 4 Parameters

Allowable Max. Power Loss Time

Allowable Max. power loss time

Input

Pr.33

Pr.33

Power

speed synchronization

Output

Pr.32=1

detection

Pr.32=2

Speed search starts with

Speed search starts with

Power

the Master Frequency

minimum output frequency

Output

Baseblock

Baseblock

Voltage

Time

Time

Pr.34

Pr.34

speed search

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.

Revision May 2008, ME14, SW V3.04 4-31