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5-5
n080
CARRIER FREQUENCY(kHz)
SLOPE
OUTPUT FREQUENCY(Hz)
MODE
SETTING
Maximum(Fc
MAX
)
Minimum(Fc
MIN
)
(=Fc)
Fo
F1
F2
1
2.5
2.5
0
NA
NA
CONSTANT
2
5.0
5.0
0
NA
NA
3
7.5
7.5
0
NA
NA
4
10.0
10.0
0
NA
NA
7
2.5
1.0
12
83.3
208.3
SYNCHRONOUS
8
2.5
1.0
24
41.6
104.1
9
2.5
1.0
36
27.7
69.4
n080 :
Carrier Frequency Upper Limit
Factory Setting:
3
Range: 1 to 4; 7 to 9
The relationship between output frequency and carrier frequency is determined from the set value
of n080 .
(a) For constant carrier frequency, set to " 1 ", " 2 ", " 3 ", " 4 ".
(b) For synchronous mode, set n080 to " 7 ", " 8 ", or " 9 ". These setting values
establish carrier frequencies of 12f, 24f, or 36f, respectively.
Fc
MAX
CARRIER
FREQUENCY
SLOPE
Fc
MIN
0
F1
F2
OUTPUT FREQUENCY
5.5 CARRIER FREQUENCY
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 greater than 100m (328 ft.), n080 should be set to 5 kHz (data " 2 " )
or less.
Summary of Contents for GPD 315
Page 1: ...GPD 315 Technical Manual Magne Tek ...
Page 20: ...1 14 ...
Page 32: ...3 2 ...
Page 76: ...5 40 PID Block Diagram ...
Page 80: ...5 44 ...
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Page 100: ...A3 2 ...
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