UPS Electrical Installation
2.3.1Dry Contacts
NOTE
All auxiliary cables must be segregated from power circuits (for shielding), must be double- insulated and should be
NOTE
If connection to more than one module is required, use a separate contact for each module.
EPO Input Dry Contact
Table 1 | Remote EPO input |
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| Terminal |
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| Connects to | Description |
Item |
| Block |
| Pin | (description of external item) | of interface |
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| 1 | REPO Switch, normally open contact | Input, protected |
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Remote EPO Input |
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| 2 | REPO Switch, common contact | +24V, 10mA, | |
TB0824 |
| current limited | ||||
Form C |
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| 3 | REPO Switch, normally closed contact, set | Input, protected |
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| jumper J5: | ||
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Control Status Inputs Dry Contact
The following inputs can sense either a normally open or normally closed contact.
Table 2 | Control or status inputs |
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| Terminal |
| Connects to | Description |
| Item | Block | Pin | (description of external item) | of interface |
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| 1 | On generator switch, closed = on generator | Input, protected |
On Generator Input |
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TB0816 | 2 | On generator switch, common | +24V, 10mA, | ||
Form C |
| current limited | |||
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| 3 | On generator switch, closed = not on generator | Input, protected |
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| 1 | Key status switch, closed = key removed | Input, protected |
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Key Status Input | TB0820 | 2 | Key status switch, common | +24V, 10mA, | |
Form C |
| current limited | |||
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| 3 | Key status switch, closed = key inserted | Input, protected |
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