D7: Offset Frequency - YASKAWA GA700 Series Technical Manual

■
d6-01: Field Weakening Level
No.
Name
(Hex.)
d6-01 Field Weakening Level
(02A0)
■
d6-02: Field Weakening Frequency Limit
No.
Name
(Hex.)
d6-02 Field Weakening Frequency
Limit
(02A1)
Make sure that these two conditions are correct to enable the Field Weakening command:
• The output frequency ≥ d6-02.
• There is a speed agreement status.
■
d6-03: Field Forcing Selection
No.
Name
(Hex.)
d6-03 Field Forcing Selection
(02A2)
0 : Disabled
1 : Enabled
■
d6-06: Field Forcing Limit
No.
Name
(Hex.)
d6-06 Field Forcing Limit
(02A5)
Note:
You cannot use Field Forcing during DC Injection Braking.
◆

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
Selection = Add Offset Frequency 1 (d7-01) to Add Offset Frequency 3 (d7-03)] to set the offset frequency. When
you close more than one input at the same time, the drive adds the selected offset values together.
Figure 12.74 shows the Offset frequency function:
YASKAWA SIEPC71061705H GA700 Series Technical Manual
V/f CL-V/f OLV CLV AOLV
Sets the drive output voltage as a percentage of E1-05 [Maximum Output Voltage] when H1-xx =
63 [Field Weakening] is activated.
V/f CL-V/f OLV CLV AOLV
Sets the minimum output frequency to start field weakening.
V/f CL-V/f OLV CLV AOLV
Sets the field forcing function.
V/f CL-V/f OLV CLV AOLV
Sets the limit value for field forcing to increase the motor excitation current reference as a
percentage of E2-03 [Motor No-Load Current]. Usually it is not necessary to change this setting.
Figure 12.74 Offset Frequency Operation
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
12.5 d: References
Default
(Range)
80%
(0 - 100%)
Default
(Range)
0.0 Hz
(0.0 - 590.0 Hz)
Default
(Range)
0
(0, 1)
Default
(Range)
400%
(100 - 400%)
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