Fagor DDS Series Hardware Manual page 146

  Drives
Derating depending on ambient temperature
3.
180
DDS
HARDWARE
Ref.1912
· 146 ·
Drive for an synchronous motor working as an axis
The following graphs show the maximum rms current in continuous duty
cycle (that is, the rated one) depending on the switching frequency of the
power transistors that the drives for synchronous motors can supply in a
temperature range between 5°C/41°F and 60°C/140°F.
NOTE. They can supply twice as much current for a maximum or 0.5 s,
and always in cycles longer than 10 s.
 For a switching frequency fc = 4 kHz
I (Arms)
6
In
4
2
0
35 40 45 50
(95) (104) (113) (122) (131) (140)
F. H3/87
Current derating on ·ACD|CMC 1.08· drives for fc = 4 kHz.
I (Arms)
8 In
7
6
5
35 40 45 50
(95) (104) (113) (122) (131) (140)
F. H3/88
Current derating on ·ACD|CMC 1.15· drives for fc = 4 kHz.
I (Arms)
13 In
12
11
10
35 40 45 50
(95) (104) (113) (122) (131) (140)
F. H3/89
Current derating on ·ACD|CMC 1.25· drives for fc = 4 kHz.
I (Arms)
In
18
16
14
12
35 40 45 50
(95) (104) (113) (122) (131) (140)
F. H3/90
Current derating on ·ACD|CMC 2.35· drives for fc = 4 kHz.
ACD|CMC 1.08
T ambient
° C
35
40
Tambient 45
°C (°F)
50
55
55 60
60
ACD|CMC 1.15
T ambient
° C
Tambient
°C (°F)
55 60
ACD|CMC 1.25
° C
Tambient
°C (°F)
55 60
ACD|CMC 2.35
T ambient
° C
35
40
Tambient
45
°C (°F)
50
55
55 60
60
In
° F A
95 4.0
104 4.0
113 4.0
122 3.5
131 2.8
140 2.1
In
° F A
35 95 7.5
40 104 7.5
45 113 7.5
50 122 7.0
55 131 6.3
60 140 5.5
T ambient In
° F A
35 95 12.5
40 104 12.5
45 113 12.5
50 122 11.9
55 131 11.2
60 140 10.5
In
° F A
95 17.5
104 17.5
113 17.5
122 16.3
131 14.7
140 13.2