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Derating curves
Drive for an synchronous motor working as an axis
The following graphs show the maximum rms current in continuous S1 (l
and intermittent S3-5% (Imax.) duty cycles depending on the switching
frequency of the power transistors in a temperature range between 5°C/41°F
and 60°C/140°F. See the load duty cycles.
For a switching frequency fc = 4 kHz
I (Arms)
Imax
8
6
In
4
2
0
35
40
45
50
(95)
(104) (113) (122) (131) (140)
F. H3/7
Current derating on ·AXD|MMC 1.08· drives for fc = 4 kHz.
I (Arms)
Imax
16
12
In
8
4
0
35
40
45
50
55
(95)
(104) (113) (122) (131) (140)
F. H3/8
Current derating on ·AXD|MMC 1.15· drives for fc = 4 kHz.
I (Arms)
Imax
25
20
15
In
10
5
0
35
40
45
50
(95)
(104) (113) (122) (131) (140)
F. H3/9
Current derating on ·AXD|MMC 1.25· drives for fc = 4 kHz.
I (Arms)
Imax
35
30
25
20
In
15
35
40
45
50
(95)
(104) (113) (122) (131) (140)
F. H3/10
Current derating on ·AXD|MMC 1.35· drives for fc = 4 kHz.
AXD|MMC 1.08
T ambient
° C
35
40
45
Tambient
°C (°F)
50
55
55
60
60
AXD|MMC 1.15
T ambient
° C
35
40
45
Tambient
50
°C (°F)
55
60
60
AXD|MMC 1.25
T ambient
° C
35
40
45
Tambient
50
°C (°F)
55
55
60
60
AXD|MMC 1.35
T ambient
° C
35
40
45
Tambient
50
°C (°F)
55
55
60
60
Drives
N
)
In
Imax.
° F
A
A
95
4.0
8.0
104
4.0
8.0
113
4.0
8.0
122
3.8
7.6
131
3.1
6.3
140
2.4
4.8
In
Imax.
° F
A
A
95
7.5
15.0
104
7.5
15.0
113
7.5
15.0
122
7.3
14.7
131
6.8
13.6
140
6.3
12.6
In
Imax.
° F
A
A
95
12.5
25.0
104 12.5
25.0
113
12.5
25.0
122
11.4
22.9
131 10.4
20.7
140
9.2 18.5
In
Imax.
° F
A
A
95
17.5
35.0
104 17.5
35.0
HARDWARE
113
17.5
35.0
122 17.3
34.5
131 16.0
32.0
140 14.8
29.5
3.
DDS
Ref.1912
· 101 ·
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