Fagor DDS Series - Page 105

Drives
3.
Ref.1912
· 105 ·
DDS
HARDWARE
Drive for a synchronous/asynchronous motor working as a spindle
The following graphs show the maximum rms current in continuous S1 (ln)
and intermittent S6-40 ( IS6-40 ) 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. H3/25
Current derating on ·SPD 1.15· drives for fc = 4 kHz.
F. H3/26
Current derating on ·SPD 1.25· drives for fc = 4 kHz.
F. H3/27
Current derating on ·SPD 1.35· drives for fc = 4 kHz.
F. H3/28
Current derating on ·SPD 2.50· drives for fc = 4 kHz.
SPD 1.15
T ambient In IS6-40
° C ° F A A
35 95 10.5 13.7
40 104 10.5 13.7
45 113 10.4 13.6
50 122 9.5 12.3
55 131 8.4 10.9
60 140 7.3 9.5
35 40 55 60
10
I (Arms)
Tambient
°C (°F)
45 50
(95)
(104)
(113) (122) (131) (140)
5
15
In
20
IS6-40
0
35 40 55 60
10
I (Arms)
Tambient
°C (°F)
45 50
(95)
(104)
(113) (122) (131) (140)
5
15
In
20
IS6-40
0
25
SPD 1.25
T ambient In IS6-40
° C ° F A A
35 95 16.0 20.8
40 104 16.0 20.8
45 113 16.0 20.8
50 122 15.1 19.6
55 131 14.0 18.1
60 140 12.8 16.7
35 40 55 60
10
I (Arms)
Tambient
°C (°F)
45 50
(95)
(104)
(113) (122) (131) (140)
5
15
In
20
IS6-40
0
25
SPD 1.35
T ambient In IS6-40
° C ° F A A
35 95 16.0 20.8
40 104 16.0 20.8
45 113 16.0 20.8
50 122 15.1 19.6
55 131 14.0 18.1
60 140 12.8 16.7
35 40 55 60
20
I (Arms)
Tambient
°C (°F)
45 50
(95)
(104)
(113) (122) (131) (140)
30
In
40
50
10
0
IS6-40
SPD 2.50
T ambient In IS6-40
° C ° F A A
35 95 31.0 40.3
40 104 31.0 40.3
45 113 31.0 40.3
50 122 28.1 36.6
55 131 25.1 32.7
60 140 22.0 28.6