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2 Engineering
2.12 Loading conditions
DS7 Soft starter
09/16 MN03901001Z-EN
www.eaton.com
55
Figure 36: Overload current X = 3 with DS7-34xSX055… soft starter
If a higher overload current (e.g. X
~
5) is required, the start conditions stated
here require a DS7-34xSX100… (100 A) soft starter. The I
LRP
value here is
300 A for 5 s at 10 starts per hour. The required X
~
5 (5 x 55 A = 275 A) is
thus fulfilled (X
~
5.4).
Figure 37: Overload current X = 5 with DS7-34xSX100… soft starter
At X = 5 (I
LRP
= 275 A) the larger DS7-34xSX100… soft starter also allows
•
10 Starts per hour S with max. 10 s (T
x
),
•
20 Starts per hour with max. 7 s (T
x
).
SX55 1/h
DS7-34xSX055...
SX55 10/h
SX55 20/h
s
5 s
10 s
15 s
20 s
25 s
30 s
80 A
100 A
120 A
140 A
180 A
160 A
I
LRP
= 165 A
200 A
30
1
20
10
t-Start (s)
SX100 1/h
SX100 10/h
SX100 20/h
s
5 s
10 s
15 s
20 s
25 s
30 s
175 A
150 A
200 A
300 A
250 A
225 A
325 A 350 A
I
LRP
= 275 A
30
1
20
10
DS7-34xSX100...
Содержание DS7 Series
Страница 1: ...Manual DS7 Soft starter 09 16 MN03901001Z EN...
Страница 4: ...II...
Страница 14: ...0 About this Manual 0 8 Units of measurement 10 DS7 Soft starter 09 16 MN03901001Z EN www eaton com...
Страница 36: ...1 Device series DS7 1 14 Function 32 DS7 Soft starter 09 16 MN03901001Z EN www eaton com...
Страница 64: ...2 Engineering 2 15 Example of other load cycles 60 DS7 Soft starter 09 16 MN03901001Z EN www eaton com...
Страница 96: ...3 Installation 3 6 Insulation test 92 DS7 Soft starter 09 16 MN03901001Z EN www eaton com...
Страница 122: ...6 Parameterization 6 2 Default settings of the basic device 118 DS7 Soft starter 09 16 MN03901001Z EN www eaton com...
Страница 148: ...7 Connection examples 7 3 Size 3 and 4 41 200 A 144 DS7 Soft starter 09 16 MN03901001Z EN www eaton com...
Страница 188: ...8 SmartWire DT 8 9 Programming 184 DS7 Soft starter 09 16 MN03901001Z EN www eaton com...