12.3 C: TUNING
506 SIEPCYEUOQ2V01A Q2V Technical Manual
Table 12.25 Wiring Distance
Wiring Distance 50 mm (164 ft) Maximum 100 m (328 ft) Maximum More than 100 m (328 ft)
C6-02 [Carrier Frequency Selection] 1 to F (up to 15 kHz) 1 to 2 (up to 5 kHz), 7 1 (up to 2 kHz), 7
Note:
• When the wiring length is longer than 100 m (328 ft), set A1-02 = 0 [V/f Control].
• The maximum wiring cable length between the drive and a PM motor is 100 m (328 ft).
• If the cable length between the drive and the motor is too long when A1-02 = 6, set A1-02 = 5.
■ C6-03: Carrier Upper Frequency Limit
No.
(Hex.)
Name Description
Default
(Range)
C6-03
(0225)
Carrier Upper Frequency
Limit
Sets the upper limit of the carrier frequency. Set C6-02 = F [Carrier Frequency Selection = User
(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 [Control Method = V/f Control], set C6-03 = C6-04 [Carrier Lower Frequency Limit] to fix the
carrier frequency.
Setting a Variable Carrier Frequency to Agree with the Output Frequency
When A1-02 = 0, set C6-03, C6-04, and C6-05 [Carrier Freq Proportional Gain] as shown in Figure 12.47 to
make the carrier frequency change linearly with the output frequency.
Figure 12.47 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
■ C6-04: Carrier Lower Frequency Limit
No.
(Hex.)
Name Description
Default
(Range)
C6-04
(0226)
Carrier Lower Frequency
Limit
Sets the lower limit of the carrier frequency. Set C6-02 = F [Carrier Frequency Selection = User
(C6-03 to C6-05)] to set this parameter.
Determined by C6-02
(1.0 - 15.0 kHz)
Set C6-03 [Carrier Upper Frequency 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
■ C6-05: Carrier Freq Proportional Gain
No.
(Hex.)
Name Description
Default
(Range)
C6-05
(0227)
Carrier Freq Proportional
Gain
Sets the proportional gain for the carrier frequency. Set C6-02 = F [Carrier Frequency Selection
= User (C6-03 to C6-05)] to set this parameter.
Determined by C6-02
(0 - 99)
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