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5.3 C: Tuning
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual
229
5
Table 5.17 Wiring Distance and Carrier Frequency
Note: 1.
The maximum cable length is 100 m when using OLV/PM (A1-02 = 5) or AOLV/PM (A1-02 = 6).
2.
Always set C6-02 to 0 (3 kHz) for models CIMR-U
4
0477 to 4
0930 regardless of the wiring distance.
■
C6-03, C6-04, C6-05: Carrier Frequency Upper Limit, Lower Limit, Proportional Gain
Use these parameters to set a user defined or a variable carrier frequency. To set the upper and lower limits and the carrier
frequency proportional gain, first set C6-02 to F.
Setting a Fixed User Defined Carrier Frequency
A carrier frequency between the fixed selectable values can be entered in parameter C6-03 when C6-02 is set to F. In V/f
Control, parameter C6-04 must also be adjusted to the same value as C6-03.
Setting a Variable Carrier Frequency (V/f Control)
In V/f Control, the carrier frequency can be set up to change linearly with the output frequency. To do this, set the upper
and lower limits for the carrier frequency and the carrier frequency proportional gain (C6-03, C6-04, C6-05).
■
C6-09: Carrier Frequency during Rotational Auto-Tuning
C6-09 determines what the carrier frequency should be while Rotational Auto-Tuning is performed.
This parameter rarely requires adjustment, but can be helpful solving problems with overcurrent when Auto-Tuning a
high frequency motor or a low impedance motor. In such cases, first set C6-03 to high value, then set C6-09 = 1.
Setting 0: Carrier Frequency = 4 kHz
Note:
The carrier frequency is 3 kHz for models CIMR-U
4
0477 to U
4
0930.
Setting 1: Same value set to C6-03
◆
C7: Voltage Adjustment
■
C7-43: Input Voltage Offset Adjustment
This parameter rarely requires adjustment. Enables adjustment of the offset for the input voltage circuit when the control
board is replaced.
Changing the value of o2-04 will trigger an oPE30 error. The input voltage offset must be adjusted when the error occurs.
If the combination of the control board and drive does not change, set this parameter to 0002 (offset adjustment not
required).
Contact Yaskawa or a Yaskawa representative if it becomes necessary to replace the control board.
Note:
Adjustment is completed at the factory. Do not change the setting of this parameter.
Setting 0000: Standard
Setting 0002: Offset adjustment not required.
Wiring Distance
Up to 50 m
Greater than 50 m
Recommended setting value for C6-02
1 to 4 (up to 10 kHz)
1 (up to 4 kHz)
No.
Parameter Name
Setting Range
Default
C6-03
<1> Available only when C6-02 is set to F.
<2> Setting range is 4.0 to 10.0 kHz for models CIMR-U
2
0028 to 2
0248, 4
0011 to 4
0414.
Setting value is only 3 kHz for models CIMR-U
4
0477 to 4
0930.
Carrier Frequency Upper Limit
3.0 to 10.0 kHz
Determined by C6-02,
o2-04
C6-04
Carrier Frequency Lower Limit (V/f Control only)
3.0 to 10.0 kHz
C6-05
Carrier Frequency Proportional Gain (V/f Control only)
0 to 99
No.
Parameter Name
Setting Range
Default
C6-09
Carrier Frequency during Rotational Auto-Tuning
0, 1
0
No.
Parameter Name
Setting Range
Default
C7-43
Input Voltage Offset Adjustment
0000 to 9999
0000
SIEP_C710636_02B_1_0.book 229 ページ 2015年12月1日 火曜日 午前11時20分