Parameter Details
12
12.5 d: References
YASKAWA SIEPC71061737B GA800 Drive Technical Reference 749
When the Up/Down 2 Command [H1-xx = 75, 76] is active, the drive uses the accel/decel times set in d4-04 [Up/
Down 2 Ramp Selection] to increase or decrease the bias value.
Figure 12.66 Up/Down 2 Bias when d4-03 = 0.00 Hz
• Setting d4-03 ≠ 0.00 Hz
When the Up/Down 2 Command [H1-xx = 75, 76] is active, the drive increases or decreases the bias in steps for the
value set in d4-03. The drive uses the acceleration and deceleration times set in d4-04.
Figure 12.67 Up/Down 2 Bias when d4-03 ≠ 0.00 Hz
■ d4-04: Up/Down 2 Ramp Selection
No.
(Hex.)
Name Description
Default
(Range)
d4-04
(02AB)
RUN
Up/Down 2 Ramp Selection
Sets the acceleration and deceleration times for the Up/Down 2 function to apply the bias to the
frequency reference.
0
(0, 1)
0 : Use Selected Accel/Decel Time
Use the active acceleration and deceleration times to increase or decrease the bias.
1 : Use Accel/Decel Time 4
Use C1-07 [Acceleration Time 4] and C1-08 [Deceleration Time 4] to increase or decrease the bias.
■ d4-05: Up/Down 2 Bias Mode Selection
No.
(Hex.)
Name Description
Default
(Range)
d4-05
(02AC)
RUN
Up/Down 2 Bias Mode
Selection
Sets the function that saves the bias value to the drive when you open or close the two Up/Down 2
Commands [H1-xx = 75, 76]. Set d4-03 [Up/Down 2 Bias Step Frequency] = 0.00 before you set this
parameter.
0
(0, 1)
0 : Hold when Neither Up/Down Closed
When the two MFDI terminals set for Up/Down 2 Command [H1-xx = 75, 76] activate or deactivate, the drive will
hold the bias value.
1 : Reset when Neither / Both Closed
When the two MFDI terminals set for Up/Down 2 Command [H1-xx = 75, 76] activate or deactivate, the drive will
reset the bias value to 0. The drive will use the acceleration and deceleration times set in d4-04 [Up/Down 2 Ramp
Selection] to accelerate and decelerate the motor to the selected output frequency.
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