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7 Connection examples
7.3 Size 3 and 4 (41 – 200 A)
DS7 Soft starter
09/16 MN03901001Z-EN
www.eaton.com
141
7.3.8 Starting several motors sequentially with a soft starter
If you will be starting several motors one after the other with a single soft starter,
make sure to follow the changeover sequence below:
▶
1. Start using soft starter
▶
2. Switch on bypass contactor Qn2 via TOR
▶
3. Disable soft starter
▶
4. Switch soft starter output with Qn1 to the next motor
▶
5. Restart
→
When starting several motors with one soft starter the thermal
load of the soft starter (starting frequency, current load) must be
taken into account.
If the starts occur closely in succession, the soft starter must be
dimensioned larger (i.e. the soft starter must be designed with
an accordingly higher load cycle).
→
Due to the thermal design of the DS7 soft starters, we
recommend the use of an (optional) fan when using a DS7
series device for starting several motors.
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...