YASKAWA U1000 iQpump Drive, Technical Manual, Page: 513 / 706

No.
(Addr.
Hex)
Name LCD Display Description Values Page
d4-04
(02AB)
Frequency Reference
Bias Accel/Decel (Up/
Down 2)
Up/Dn 2 Ramp Sel
0: Sel Acc/Dec Time
1: Acc/Dec Time 4
All Modes
0: Use selected accel/decel time.
1: Use accel/decel time 4 (C1-07 and C1-08).
Default: 0
Range: 0, 1
243
d4-05
(02AC)
Frequency Reference
Bias Operation Mode
Selection (Up/Down 2)
Up/Dn 2 Bias Sel
0: Hold Bias Value
1: Reset Bias Value
All Modes
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
243
d4-06
(02AD)
Frequency Reference
Bias (Up/Down 2)
Up/Dn 2 Bias Lvl
All Modes
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
243
d4-07
(02AE)
Analog Frequency
Reference Fluctuation
Limit (Up/Down 2)
Up/Dn 2 FluctLim
All Modes
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: 1.0%
Min.: 0.1
Max.: 100.0
244
d4-08
(02AF)
Frequency Reference
Bias Upper Limit (Up/
Down 2)
Up/Dn 2 UpperLim
All Modes
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: 100.0%
Min.: 0.0
Max.: 100.0
244
d4-09
(02B0)
Frequency Reference
Bias Lower Limit (Up/
Down 2)
Up/Dn 2 LowerLim
All Modes
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
244
d4-10
(02B6)
Up/Down Frequency
Reference Limit
Selection
Up/Dn LowLim Sel
0: D2-02 or Analog
1: D2-02 Only
All Modes
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
244
u
d5: Torque Control
No.
(Addr.
Hex)
Name LCD Display Description Values Page
d5-01
(029A)
Torque Control
Selection
Torq Control Sel
0: Speed Control
1: Torque Control
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
0: Speed Control
1: Torque Control
Set to 0 when using a digital input to switch between Speed and
Torque Control (H1- oo = 71).
Default: 0
Range: 0, 1
248
d5-02
(029B)
Torque Reference Delay
Time
Tq Ref Dly Time
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
Sets a delay time for the torque reference signal. Used to
suppress effects by noisy or fluctuating torque reference
signals.
Default:
<1>
Min.: 0
Max.: 1000
248
d5-03
(029C) Speed Limit Selection
Speed Limit Sel
1: Fref Limit
2: Speed Limit Sel
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
1: Limit set by the frequency reference in b1-01.
2: Limit set by d5-04.
Default: 1
Range: 1, 2
248
d5-04
(029D) Speed Limit
Speed Limit Val
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
Sets the speed limit during Torque Control as a percentage of
the maximum output frequency. Enabled when d5-03 = 2. A
negative setting sets a limit in the opposite direction of the Run
command.
Default: 0%
Min.: -120
Max.: 120
248
B.6 d: Reference Settings
YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual 513
B
Parameter List