Yaskawa J7 Drive - Manual (Page 44)

5-9
n30 : Frequency Reference Upper Limit Factory setting: 100 %
Range: 0 to 110 %
n31 :
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;
n09 ) 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:
n09 = " 60 " Hz (100%)
n30 = " 80 " % = 48Hz – Max. speed
n31 = " 10 " % = 6Hz – Min. speed
NOTE: n30 must be set to a higher value than n31 .
100%
n30 80%
OUTPUT
FREQ.
( % )
n31 10%
2.5%
t
5.9 FREQUENCY REFERENCE UPPER AND LOWER LIMITS
n62 : 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
n62 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