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d4-09: Up/Down 2 Bias Lower Limit

No.

(Hex.)

Name

Description

Default

(Range)

d4-09

(02B0)

RUN

Up/Down 2 Bias Lower Limit

Sets the lower limit of the Up/Down 2 bias as a percentage of the Maximum Output Frequency.

0.0%

(-99.9 - 0.0%)

The drive saves the set bias lower limit in d4-06 [Frequency Ref Bias (Up/Down 2)]. Set d4-09 to an applicable value before you use the Up/Down 2 function.

Note:

When d4-01 = 1 [Freq Reference Hold Selection = Enabled] and b1-01 = 0 [Frequency Reference Selection 1 = Keypad], the drive will add the bias value to the frequency reference when it does not receive an Up/Down 2 command for 5 s. Then the drive will reset the value to 0.

If you increase the bias with the Up 2 command and d4-09 = 0, you cannot use a Down 2 command to decrease the frequency reference. To decrease speed in this condition, set a negative lower limit in d4-09.