Derating Values For Switching Frequency - gefran SIEIDrive ADV200 DC Series Quick Start Up Manual
Field oriented vector ac drive for syncronous/asyncronous motors
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9.7.1 Derating values for switching frequency
The derating factors shown in the table below are applied to the rated DC output
by the user. They are not automatically implemented by the drive:
I
DRIVE
f
SW
Switching frequency
Sizes
Default
1007
8
1015
8
1022
4
1030
4
1040
4
2055
4
2075
4
2110
4
3150
4
3185
4
3220
4
4300
4
4370
4
4450
4
5550
4
5750
4
5900
4
61100
4
61320
4
71600
4
72000
4
72500
2
73150
2
73550
2
400 kW
2
500 kW
2
630 kW
2
710 kW
2
900 kW
2
1000 kW
2
(1) K
V
(2) K
T
(3) K
ALT
(4) K
F
On Light duty condition the switching frequency is fixed to 4 kHz, no derating is applied.
Note!
= I
x K
x K
x K
N
ALT
T
K
K
V
Higher
(1)
(2)
10, 12
0.9
0.9
10, 12
0.9
0.9
6, 8, 10, 12
0.9
0.9
6, 8, 10, 12
0.9
0.9
6, 8, 10, 12
0.9
0.9
6, 8, 10, 12
0.9
0.9
6, 8, 10, 12
0.9
0.9
6, 8, 10, 12
0.9
0.9
6, 8, 10, 12
0.9
0.9
6, 8, 10, 12
0.9
0.9
6, 8, 10, 12
0.9
0.9
6, 8, 10, 12
0.9
0.9
6, 8, 10, 12
0.9
0.9
6, 8
0.9
0.9
6, 8
0.9
0.9
6, 8
0.9
0.9
6, 8
0.9
0.9
6, 8
0.9
0.9
6, 8
0.9
0.9
-
0.9
0.9
-
0.9
0.9
-
0.9
0.9
-
0.9
0.9
-
0.9
0.9
-
0.9
0.9
-
0.9
0.9
-
0.9
0.9
-
0.9
0.9
-
0.9
0.9
-
0.9
0.9
: Derating factor for mains voltage at 460V
: Derating factor for 50°C ambient temperature (1 % each °C above 40°C)
: Derating factor for installation at altitudes above 1000 meters a.s.l.. Value to be applied at each 100
m increase above 1000 m (up to a maximum of 2000 m).
I.e.: Altitude 2000 m, K
= 1,2 *10 = 12% di derating; I
ALT
: Derating factor for higher switching frequency
ADV200 • Quick start up guide - Specification and installation
x K
V
F
Derating factor
K
T
ALT
2 kHz
4 kHz
(3)
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
1
1.2
1
0.85
1.2
1
0
1.2
1
0
1.2
1
0
1.2
1
0
1.2
1
0
1.2
1
0
1.2
1
0
1.2
1
0
AC
derated = 100 - ((12*100)/100) = 88 % I
N
K
(4)
F
6 kHz
8 kHz
10 kHz
1
1
0.85
1
1
0.85
0.85
0.7
0.55
0.85
0.7
0.55
0.85
0.7
0.6
0.85
0.7
0.6
0.85
0.7
0.6
0.85
0.7
0.6
0.85
0.7
0.6
0.85
0.7
0.6
0.85
0.7
0.6
0.85
0.7
0.6
0.85
0.7
0.6
0.85
0.7
0
0.85
0.7
0
0.85
0.7
0
0.85
0.7
0
0.85
0.7
0
0.85
0.7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
12 Hz
0.7
0.7
0.4
0.4
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
N
123
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