g
GE
cable 02US |
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RPA control bus | JB1 JB |
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300 | JA1 |
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225- |
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JA |
| JB1 | JB |
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SGS |
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| JB2 |
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| JA1 |
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| JA2 JA |
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| Q1 | Q2 |
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| JB1 |
| Q1 | Q2 |
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| UPS 1 | JA1 |
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| UPS 2 | |||
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Fig.
JA2
JB2 | Ne |
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| xt |
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| p | |
| unit | 3, | ar | |
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6, | 7, | 8 |
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allel 5,
Control bus cables routing
Place and fix the cables
Pay attention when cabling and routing the bus cables JA and JB inside the UPS cabinet.
In case one unit should be removed from the parallel system, the bus cables JA and JB must be removed from the cabinet without disconnecting them from the metal plate where the sockets JA and JB are located.
For reliability reasons the cables
It is important that the cable JA must be the same length as cable JB.
The connection of the control bus cable in a UPS system already powered requires a special reset operation, which can be made by only a trained operator.
OPM_SGS_ISG_M22_M30_0US_V011.doc | 33/38 | Installation Guide SG Series 225 & 300 kVA |