Overview of Input Contacts and Output Relays
Specifications
| Parameter | Typical | Maximum | |
|---|---|---|---|
| Input | Voltage (V) | NA | 5 |
| Current (mA) | NA | 15 | |
| Output | Voltage | 24 VDC | 230 VAC |
| Current (A) | NA | 3 |
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Input dry contacts:
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DI2: Normally Closed (NC) input dry contact for the battery breaker on the battery cabinet.
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DI3: Normally Closed (NC) emergency power off input dry contact. When activated (opened), the UPS shuts down immediately.
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NTC: Input dry contact for external battery temperature sensor.
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DI1 and DI4: Configurable input dry contacts.
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Output dry contacts:
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BB Trip: The output dry contact provides 24 V supply to the auxiliary switch of the battery breaker for trip protection.
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DO1 to DO5: Configurable output dry contacts.
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Fixed Input Dry Contacts
| Terminals | Function | Default | Application |
|---|---|---|---|
| DI2 | Ext BB contact signal | Fixed |  |
| DI3 | Emergency power off (EPO) | Fixed |  |
| NTC | External battery temperature | Fixed |  |
Configurable Input Dry Contacts
The input dry contacts provide active signals and it is not necessary to connect an external power supply to trigger the function.
| Terminals | Function | Default | Application |
|---|---|---|---|
| DI1 | 0: OFF 1: UPS ON 2: UPS OFF 3: Battery fault 4: Genset enable 5: Custom alarm 1 6: Custom alarm 2 7: Disable ECO 8: Force inverter off |
0 |  |
| DI4 | 0 |
Fixed Output Dry contacts
| NOTICE |
|---|
|
RISK OF EQUIPMENT DAMAGE
The battery breaker contact drive can provide a maximum
of +24 VDC 250 mA to the shunt trip release coil. If the value is
exceeded, it can damage the UPS.
Failure to follow these instructions can result in equipment damage.
|
| Terminals | Function | Default | Application |
|---|---|---|---|
| BB TRIP | Battery breaker trip | Fixed |  |
Configurable Output Dry Contacts
The output dry contacts provide two passive statuses: Short and open. The output contacts must be connected to an external power supply to trigger the function.
| Terminals | Function | Default | Application |
|---|---|---|---|
| DO1 | 0: OFF 1: Common alarm 2: Normal operation 3: Battery operation 4: Static bypass 5: Output overload 6: Fan inoperable 7: Battery fault 8: Battery disconnected 9: Batter voltage low 10: Input out of tolerance 11: Bypass out of tolerance 12: EPO activated 13: Maintenance mode 14: Backfeed on input 15: Backfeed on bypass |
0 |  |
| DO2 | 0 | ||
| DO3 | 0 | ||
| DO4 | 0 | ||
| DO5 | 0 |
For dual mains system: Configure two of the output dry contacts for backfeed on bypass and backfeed on input.
