YASKAWA
SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
241
Remove the Saved Frequency Reference Value
The procedure to remove the saved frequency reference value is different for different functions. Use these methods
to remove the value:
•
Release the input programmed for
Accel/Decel Ramp Hold [H1-xx = A]
.
•
Set an Up or Down command while no Run command is active.
■
d4-10: Up/Down Freq Lower Limit Select
No.
(Hex.)
Name
Description
Default
(Range)
d4-10
(02B6)
Up/Down Freq Lower Limit
Select
Sets the lower frequency limit for the Up/Down function.
0
(0, 1)
0 : Greater of d2-02 or Analog
The higher value between
d2-02 [Frequency Reference Lower Limit]
and an analog input programmed for
Frequency
Reference [H3-02, H3-10 = 0]
sets the lower frequency reference limit.
Note:
When you use
External Reference 1/2 Selection [H1-xx = 2]
to switch between the Up/Down function and an analog input as the reference
source, the analog value becomes the lower reference limit when the Up/Down command is active. Set
d4-10 = 1
to isolate the Up/Down
function and the analog input value.
1 : d2-02
You can only use
d2-02
to set the lower limit of the frequency reference.
◆
d6: Field Weakening
d6 parameters
set the field weakening function.
The field weakening function decreases the energy consumption of the motor. It decreases the output voltage of the
drive to a set level. The function decreases the motor excitation current inversely proportional to speed in a constant
output range, and does not let the induced voltage of the motor become more than the power supply voltage. To
enable this function, set
Field Weakening [H1-xx = 63]
ON.
Note:
Use the Field Weakening function in constant light-load applications. To control the energy consumption of the motor for other load
conditions, use the
b8 parameters [Energy Saving]
.
■
d6-01: Field Weakening Level
No.
(Hex.)
Name
Description
Default
(Range)
d6-01
(02A0)
Field Weakening Level
Sets the drive output voltage as a percentage of
E1-05 [Maximum Output Voltage]
when
H1-xx = 63
[Field Weakening]
is activated.
80%
(0 - 100%)
■
d6-02: Field Weakening Frequency Limit
No.
(Hex.)
Name
Description
Default
(Range)
d6-02
(02A1)
Field Weakening Frequency
Limit
Sets the minimum output frequency to start field weakening.
0.0 Hz
(0.0 - 400.0 Hz)
To enable the Field Weakening command, make sure that these two conditions are true:
•
The output frequency ≥
d6-02
.
•
There is a speed agreement status.
◆
d7: Offset Frequency
The drive will use 3 digital signal inputs, to add or subtract the set frequency (Offset frequency) to/from the frequency
reference and correct the speed. The drive uses the terminal set in
H1-xx = 44 to 46 [MFDI Function Select = Add
Содержание H6B1A002
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Страница 454: ...5 14 Z Bypass Parameters 454 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference...
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Страница 768: ...10 6 MEMOBUS Modbus Communications 768 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference...
Страница 780: ...11 3 European Standards 780 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference...