Yaskawa AC Drive-P1000 Industrial Fan - Manual (Page 426)

No.
(Addr.
Hex)
Name Description Values Page
d4-05
(2AC)
Frequency Reference Bias
Operation Mode Selection
(Up/Down 2)
0: Bias value is held if no input Up 2 or Down 2 is active.
1: When the Up 2 reference and Down 2 reference are both on or both off, the
applied bias becomes 0. The specified accel/decel times are used for
acceleration or deceleration.
Default: 0
Range: 0, 1
187
d4-06
(2AD)
Frequency Reference Bias
(Up/Down 2)
The Up/Down 2 bias value is saved in d4-06 when the frequency reference is
not input by the digital operator. Set as a percentage of the maximum output
frequency.
Default: 0.0%
Min.: -99.9
Max.: 100.0
188
d4-07
(2AE)
Analog Frequency
Reference Fluctuation Limit
(Up/Down 2)
Limits how much the frequency reference is allowed to change while an input
terminal set for Up 2 or Down 2 is enabled. If the frequency reference changes
for more than the set value, then the bias value is held and the drive accelerates
or decelerates to the frequency reference. Set as a percentage of the maximum
output frequency.
Default: 0.01%
Min.: 0.01
Max.: 100.0
188
d4-08
(2AF)
Frequency Reference Bias
Upper Limit (Up/Down 2)
Sets the upper limit for the bias and the value that can be saved in d4-06. Set
as a percentage of the maximum output frequency.
Default: 1.0%
Min.: 0.0
Max.: 100.0
188
d4-09
(2B0)
Frequency Reference Bias
Lower Limit (Up/Down 2)
Sets the lower limit for the bias and the value that can be saved in d4-06. Set
as a percentage of the maximum output frequency.
Default: 0.0%
Min.: -99.9
Max.: 0.0
188
d4-10
(2B6)
Up/Down Frequency
Reference Limit Selection
0: The lower limit is determined by d2-02 or an analog input.
1: The lower limit is determined by d2-02.
Default: 0
Range: 0, 1
188
u d6: Field Weakening and Field Forcing
No.
(Addr
Hex.)
Name Description Values Page
d6-01
(2A0)
Field Weakening Level
Sets the drive output voltage for the Field Weakening function as a percentage
of the maximum output voltage.
Enabled when a multi-function input is set for Field Weakening (H1-oo =
63).
Default: 80%
Min.: 0
Max.: 100
189
d6-02
(2A1)
Field Weakening Frequency
Limit
Sets the lower limit of the frequency range where Field Weakening control is
valid.
The Field Weakening command is valid only at frequencies above this setting
and only when the output frequency matches the frequency reference (speed
agree).
Default: 0.0 Hz
Min.: 0.0
Max.: 400.0
189
B.5 d: References
426 YASKAWA SIEP YAIP1U 01B AC Drive - P1000 Technical Manual