Fagor DDS Series - Page 101

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