YASKAWA GPD-506V

n054 : Carrier Frequency Upper Limit
(Carrier Freq Sel)
The relationship between output frequency and carrier frequency is determined from the
set value of n054 .
(a) For constant carrier frequency, set to "2.5 kHz" through "15.0 kHz."
(b ) For synchronous mode, set n054 to "synchronous 1, 2, or 3" (7 ", " 8 ", or " 9 ").
These setting values establish carrier frequencies of 12f, 24f, or 36f, respectively.
SLOPE OUTPUT FREQUENCY (Hz)
LED LCD CARRIER FREQUENCY (kHz) ( = Fc )
SETTING SETTING Maximum (FcMAX) Minimum (FcMIN) Fo F1 F2 MODE
1 2.5 kHz 2.5 2.5 0 NA NA
2 5.0 kHz 5.0 5.0 0 NA NA
3 8.0 kHz 7.5 7.5 0 NA NA
4 10.0 kHz 10.0 10.0 0 NA NA CONSTANT
5 12.5 kHz 12.5 12.5 0 NA NA
6 15.0 kHz 15.0 15.0 0 NA NA
7 Synchronous 1 2.5 1.0 1 2 83.3 208.3
8 Synchronous 2 2.5 1.0 2 4 41.6 104.1 SYNCHRONOUS
9 Synchronous 3 2.5 1.0 3 6 27.7 69.4
10† 7.0 kHz 7.0 7.0 0 NA NA CONSTANT
† Setting of " 10 " is available only on GPD 506V - B096 (CIMR-P5M40451F).
Maximum carrier frequency and factory setting are dependent upon drive rating;
see Appendix 3.
Carrier frequency should be decreased as the distance between the drive and the motor
increases, to reduce capacitive coupling in the motor leads.
•
For wiring distances up to 50m (164 ft.), n054 should be set to "15.0 kHz" (data " 6 " ) or less.
• For wiring distances from 50m (164 ft.) to 100m (328 ft.), n054 should be set to "10.0 kHz"
(data " 4 " ) or less.
• For wiring distances greater than 100m (328 ft.), n054 should be set to "5.0 kHz" (data " 2 " )
or less.
5-6
Fc
MAX
CARRIER
FREQUENCY
SLOPE
Fc
MIN
0 F1 F2
OUTPUT FREQUENCY
5.5 CARRIER FREQUENCY