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%
t
5.9 FREQUENCY REFERENCE UPPER & LOWER LIMITS
n100 : Up/Down Hold Memory
Factory setting:
0
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
0
Not retained
1
Held reference retained
Note: Frequency reference value must
remain unchanged for a minimum of 5
seconds to be retained.
5.10 FREQUENCY REFERENCE RETENTION