9 frequency reference upper and lower limits, 10 frequency reference retention, Frequency reference upper and lower limits -9 – Yaskawa V7 Drives User Manual

Page 61: Frequency reference retention -9

5-9

n033 : Frequency Reference Upper Limit

Factory setting:

100 %

Range: 0 to 110 %

n034 : Frequency Reference Lower Limit

Factory setting:

0 %

Range: 0 to 110 %

These two parameters set the range for the frequency command signal. Each is set, in increments
of 1%, as a percentage of maximum frequency (Fmax;

n011 ) as established by either the selected

standard V/f pattern or custom V/f pattern.

NOTE: All references are affected by the upper and lower limit points.

EXAMPLE:

n011 = " 60 " Hz (100%)
n033 = " 80 " % = 48Hz – Max. speed
n034 = " 10 " % = 6Hz – Min. speed

NOTE: n033 must be set to a higher value than n034.

100%

n033

80%

OUTPUT

FREQ.

( % )

n034 10%

2.5%

5.9 FREQUENCY REFERENCE UPPER & LOWER LIMITS

n100 : Up/Down Hold Memory

Factory setting:

Range: 0 or 1

Used with the Up/Down command. To retain the held frequency reference when a stop command is
issued or when power is removed, set

n100 to " 1 ".

Setting

Description

Not retained

Held reference retained

Note: Frequency reference value must
remain unchanged for a minimum of 5
seconds to be retained.

5.10 FREQUENCY REFERENCE RETENTION

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