1.4 d: Reference Settings
YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual
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d4-10: Up/Down Frequency Reference Limit Selection
Selects how the lower frequency limit is set when the Up/Down function is used. Refer to
Setting 10/11: Up/Down Command on page 144
for details on the Up/Down function in
combination with frequency reference limits.
Setting 0: Lower Limit is Determined by d2-02 or Analog Input
The lower frequency reference limit is determined by the higher value of both, parameter d2-
02 or an analog input that is programmed for “Frequency Bias” (H3-02/10 = 0).
Note:
If for example the external reference change over function (H1-
= 2) used to switch between
Up/Down function and analog input as reference source, the analog value would become the
lower reference limit when the Up/Down reference is active. Change d4-10 to 1 to make the Up/
Down function independent of the analog input value.
Setting 1: Lower Limit is Determined by Parameter d2-02
Only parameter d2-02 sets the lower frequency reference limit.
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d4-11: Bi-Directional Output Selection
Selects if the frequency reference or PID output value is converted into bi-directional
internal frequency reference. Refer also to the PID block diagram in
to see how
bi-directional output works.
Note:
When used in combination with PID control, the bi-directional output function can be enabled or
disabled using a digital input (H1-
= 7F)
Setting 0: No Conversion
The frequency reference or PID output value is used as it is without being converted. The
drive will operate in the direction selected from 0 to 100% of the maximum output
frequency.
Setting 1: Bi-Directional Output Conversion
When the frequency reference or PID output is below 50%, the drive reverses the selected
direction. When it is above 50% the drive works in the selected direction.
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d4-12: Stop Position Gain
Sets the gain for adjusting the stopping accuracy when simple positioning is selected as the
stopping method (b1-03 = 9).
No.
Parameter Name
Setting Range
Default
d4-11
Bi-Directional Output Selection
0 or 1
0
No.
Parameter Name
Setting Range
Default
d4-12
Stop Position Gain
0.50 to 2.55
1.00
Summary of Contents for OYMC V1000
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