Yaskawa iQpump1000 AC Drive Quick Start - Manual (Page 339)

u d4: Frequency Reference Hold and Up/Down 2 Function
No.
(Addr.
Hex)
Name LCD Display Description Values Page
d4-01
(0298)
Frequency Reference
Hold Function Selection
Fref Hold Sel
0: Disabled
1: Enabled
0: Disabled. Drive starts from zero when the power is switched
on.
1: Enabled. At power up, the drive starts the motor at the Hold
frequency that was saved.
Default: 0
Range: 0, 1
–
d4-03
(02AA) Frequency Reference
Bias Step (Up/Down 2) Up/Dn 2 Step Lvl
Sets the bias added to the frequency reference when the Up 2
and Down 2 digital inputs are enabled (H1-oo = 75, 76).
Default: 0.00 Hz
Min.: 0.00
Max.: 99.99
–
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
0: Use selected accel/decel time.
1: Use accel/decel time 4 (C1-07 and C1-08).
Note: The functionality of setting 1 is only accessible
via MEMOBUS/Modbus communication.
Default: 0
Range: 0, 1
–
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
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
–
d4-06
(02AD)
Frequency Reference
Bias (Up/Down 2)
Up/Dn 2 Bias Lvl
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
–
d4-07
(02AE)
Analog Frequency
Reference Fluctuation
Limit (Up/Down 2)
Up/Dn 2 FluctLim
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.: 0.01
Max.: 100.0
–
d4-08
(2AF)
Frequency Reference
Bias Upper Limit (Up/
Down 2)
Up/Dn 2 UpperLim
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
–
d4-09
(02B0)
Frequency Reference
Bias Lower Limit (Up/
Down 2)
Up/Dn 2 LowerLim
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
–
d4-10
(02B6)
Up/Down Frequency
Reference Limit
Selection
Up/Dn LowLim Sel
0: D2-02 or Analog
1: D2-02 Only
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
–
B.4 d: References
YASKAWA TOEP YAIP1W 01B YASKAWA AC Drive - iQpump1000 Quick Start Guide 339
B
Parameter List