Additional UPS Features
Relay CardThis interface provides true relay contact output to peripheral devices. Outputs are
Table 3. Relay Card (AS/400) Pin Assignment
Pin Number | Signal Name | Definition | Direction |
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|
|
|
1 | UPS Fail | Relay contact; normally open, closes | Out |
|
| when UPS fails. |
|
|
|
|
|
2 | Summary Alarm | Relay contact; normally open, closes | Out |
|
| when UPS fails, bypass is activated, |
|
|
| utility power failure, or low battery |
|
|
| status. |
|
|
|
|
|
3 | Remote Shutdown | Ground | |
|
|
|
|
4 | Remote Shutdown (+) | Activated by +5 to +12V for one second | In |
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|
|
|
5 | Common | Relay common connection for pins 1, 2, | |
|
| 6, 7, 8, and 9. |
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|
|
|
|
6 | Bypass | Relay contact; normally open, closes | Out |
|
| when the UPS is in Bypass mode. |
|
|
|
|
|
7 | Low Batt | Low Battery relay contact; normally | Out |
|
| open, closes when the battery is almost |
|
|
| discharged. |
|
|
|
|
|
8 | Battery Mode | Activated by +5 to +12V for one second. | In |
| Remote Shutdown |
|
|
|
|
|
|
9 | AC Fail | AC Fail relay contact; normally open, | Out |
|
| closes when utility power fails. |
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|
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|
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28 | Powerware® 9120 User's Guide 05147426 A Uncontrolled Copy |