Omron Q2V Series Technical Manual page 519

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d4-05: Up/Dw2 Bias Mode Selection
No.
Name
(Hex.)
d4-05 Up/Dw2 Bias Mode
Selection
(02AC)
RUN
0 : Hold@Up=Dw=0
When the two MFDI terminals set for Up2 Command, Dw2 Command [H1-xx = 65, 66] activate or deactivate, the
drive will hold the bias value.
1 : Reset@Up=Dw
When the two MFDI terminals set for Up2 Command, Dw2 Command [H1-xx = 65, 66] 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/
Dw2 Ramp Selection] to accelerate and decelerate the motor to the selected output frequency.
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d4-06: FRef Bias(Up/Dw2)
No.
Name
(Hex.)
d4-06 FRef Bias(Up/Dw2)
(02AD)
The Up/Down 2 function setting changes the function of d4-06:
Note:
When the keypad sets the frequency reference, you do not usually use parameter d4-06.
• When d4-01 = 0 [FRef Hold Selection = Disabled] and a source other than the keypad sets the frequency
reference, the drive adds the value set in d4-06 to the frequency reference. If the value set in d4-06 is a negative
number, the drive will subtract it from frequency reference.
• When d4-01 = 1 [Enabled] and a source other than the keypad sets the frequency reference, the drive will store
the bias value adjusted with the Up/Down 2 command in d4-06 5 seconds after you release the Up/Down 2
command. The drive adds or subtracts the value set in d4-06 to the frequency reference.
Conditions that Reset or Disable d4-06
The drive resets and disables the bias value in these conditions:
• d4-01 = 0 and the Run command was cleared.
• H1-xx = 65, 66 [MFDI Function Select = Up2 Command, Dw2 Command] is not set.
• The frequency reference source was changed.
This includes switching LOCAL/REMOTE and multi-step speed reference.
• A digital input changed the frequency reference value.
• d4-03 [Up/Dw2 Bias Step Frequency] = 0 and d4-05 = 1 [Up/Dw2 Bias Mode Selection = Reset@Up=
DwReset when Neither / Both Closed], and the two MFDI terminals set for H1-xx = 65/66 [Up2 Command/Dw2
Command] are activated or deactivated.
• The value of E1-04 [Max Output Frequency] was changed.
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d4-07: Analog FRef Fluctuate Limit
No.
Name
(Hex.)
d4-07 Analog FRef Fluctuate
Limit
(02AE)
RUN
Handles frequency reference changes while H1-xx = 65, 66 [Up2 Command, Dw2 Command] is activated. When
the frequency reference changes for more than the level set in d4-07, the drive will hold the bias value, and the
drive will accelerate or decelerate to the frequency reference. When the drive is at the frequency reference, it
releases the bias hold and the bias follows the Up/Down 2 input commands.
This parameter is applicable only when an analog or pulse input sets the frequency reference.
SIEPCYEUOQ2V01A Q2V Technical Manual
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the function that saves the bias value to the drive when you open or close the two Up2
Command, Dw2 Command [H1-xx = 65, 66]. Set d4-03 [Up/Dw2 Bias Step Frequency] = 0.00
before you set this parameter.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Saves the bias value from the Up/Down 2 Command where the Maximum Output Frequency is
100%.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
If the frequency reference changes for more than the level set to this parameter, then the bias
value will be held. The value is set as a percentage of the Maximum Output Frequency.
Description
Description
Description
12.4 d: REFERENCE
Default
(Range)
0
(0, 1)
Default
(Range)
0.0%
(-99.9 - +100.0%)
Default
(Range)
1.0%
(0.1 - 100.0%)
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