YASKAWA iQpump Micro CIMR-PW Series User Manual page 153

Setting d4-03 > 0.0 Hz
When an Up 2 or Down 2 command is enabled, the bias is increased or decreased in steps for the value set in d4-03. The
frequency reference changes with the accel/decel times determined by parameter d4-04.
Up 2 command
d4-05: Frequency Reference Bias Operation Mode Selection (Up/Down 2)
n
Determines if the bias value is held or not when the Up/Down 2 inputs are both released or both enabled. The parameter is
effective only when parameter d4-03 is set to 0.00.
No.
d4-05 Frequency Reference Bias Operation Mode Selection
Setting 0: Hold Bias Value
The bias value will be held if no input Up 2 or Down 2 is active.
Setting 1: Reset Bias Value
The bias is reset to 0% when both inputs Up 2 and Down 2 are either on or off. The drive will use the accel/decel time as
selected in d4-04 to accelerate or decelerate to the frequency reference value.
d4-06: Frequency Reference Bias (Up/Down 2)
n
This parameter is used to save the frequency reference bias value set by the Up/Down 2 function. It is set as a percentage of
the maximum output frequency. The function of d4-06 depends on how the Up/Down 2 function is configured.
• This parameter is not normally used when the frequency reference is set by the digital operator. The user can set d4-06 to a
certain value that will be applied when the operation is started, but it will be reset when the frequency reference changes
(including multi-step references) or will be disabled when d4-01 = 0 and the Run command is removed.
• When d4-01 = 0 and the frequency reference is set by an analog or pulse input, the value set in d4-06 is generally added to
or subtracted from the frequency reference.
• When d4-01 = 1 and the frequency reference is set by a different source than the digital operator, the bias value adjusted
with the Up/Down 2 inputs is stored in d4-06 when 5 s have passed after the Up 2 or Down 2 command release.
No.
d4-06
Conditions that Generally Reset or Disable Parameter d4-06
• When the Up/Down 2 function has not been assigned to the multi-function terminals
• When the frequency reference source has been changed (including LOCAL/REMOTE or external reference 1/external
reference 2 switch over by digital inputs)
• If d4-03 = 0 Hz, d4-05 = 1 and the Up/Down 2 commands are both open or both closed
• Any changes to the maximum frequency set to E1-04
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
Output
frequency
Bias
Figure 5.37 Up/Down 2 Bias when d4-03 > 0.0 Hz
Parameter Name
Parameter Name
Frequency Reference Bias
5.4 d: Reference Settings
Bias value is increased in steps as
defined in d4-03
Drive uses accel/decel times as
set in d4-04
Setting Range
0 or 1
Setting Range
-99.9 to 100.0%
Default
0
Default
5
0.0%
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