Parameter Details
12
12.4 C: Tuning
YASKAWA SIEPC71061705H GA700 Series Technical Manual 715
Note:
When A1-02 = 5 or 6 [Control Method Selection = OLV/PM or AOLV/ PM], the maximum cable length is 100 m (328 ft).
■ C6-03: Carrier Frequency Upper Limit
No.
(Hex.)
Name Description
Default
(Range)
C6-03
(0225)
Carrier Frequency Upper
Limit
Sets the upper limit of the carrier frequency. Set C6-02 = F [Carrier Frequency Selection = User
Defined (C6-03 to C6-05)] to set this parameter.
Determined by C6-02
(1.0 - 15.0 kHz)
Setting a Fixed User-Defined Carrier Frequency
When you cannot use C6-02 to set a carrier frequency between set selectable values, you can set the value in C6-
03. The carrier frequency will be fixed to the value set to C6-03.
When A1-02 = 0, 1 [Control Method Selection = V/f, CL-V/f], set C6-03 = C6-04 [Carrier Frequency Lower
Limit] to fix the carrier frequency.
Setting a Variable Carrier Frequency to Agree with the Output Frequency
When A1-02 = 0, 1, set C6-03, C6-04, and C6-05 [Carrier Freq Proportional Gain] as shown in Figure 12.59 to
make the carrier frequency change linearly with the output frequency.
Figure 12.59 Setting a Variable Carrier Frequency to Agree with the Output Frequency
Note:
• When C6-05 ≤ 7, the drive disables C6-04. The carrier frequency is fixed to the value set to C6-03.
• The drive detects oPE11 [Carrier Frequency Setting Error] when these conditions are correct at the same time:
–C6-05 ≥ 6
–C6-04 ≥ C6-03
• When A1-02 = 0, 2, 5, 8 [Control Method Selection = v/f, OLV, OLV/PM, EZOLV], in the area where the output frequency is more than
C6-03 and C6-12, the carrier frequency = output frequency × 12, and it will change with the output frequency.
Figure 12.60 Carrier Frequency when C6-03 = 2.0 kHz, E1-04 = 400.0 Hz
■ C6-04: Carrier Frequency Lower Limit
No.
(Hex.)
Name Description
Default
(Range)
C6-04
(0226)
Carrier Frequency Lower
Limit
Sets the lower limit of the carrier frequency. Set C6-02 = F [Carrier Frequency Selection = User
Defined (C6-03 to C6-05)] to set this parameter.
Determined by C6-02
(1.0 - 15.0 kHz)
Set C6-03 [Carrier Frequency Upper Limit], C6-04, and C6-05 [Carrier Freq Proportional Gain] to make the
carrier frequency change linearly with the output frequency.
Note:
The drive detects oPE11 [Carrier Frequency Setting Error] when these conditions are correct at the same time:
• C6-04 ≥ C6-03
• C6-05 ≥ 6
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