Installation
6.4Discharge/recharge
The XR10/XR20 battery charging circuit float charges at 13.9 VDC at a maximum current of 1.2 Amps using a 40VA transformer. The total current available is reduced by the combined auxiliary current draw from terminals 7, 11, and 25. The various battery voltage levels are listed below:
Battery Trouble: | Below | 11.9 VDC |
Battery Restored: | Above | 12.6 VDC |
6.5Battery supervision
The XR10/XR20 tests the battery once every hour when AC power is present. The test lasts for five seconds. A load is placed on the battery and if its voltage falls below 11.9 VDC a low battery is detected. If AC power has failed, a low battery is detected any time the battery voltage falls below 11.9 VDC.
If a low battery is detected with AC power present, the test is repeated every two minutes until the battery charges above 12.6 VDC; the battery restored voltage. If a faulty battery is replaced with a fully charged battery, the restored battery will not be detected until the next two minute test is done.
6.6XR10/XR20 power requirements
During AC power failure, the XR10/XR20 panel and all auxiliary devices connected to the XR10/XR20 draw their power from the battery. All devices must be taken into consideration when calculating the battery standby capacity. Below is a list of the power requirements of the XR10/XR20 panel. Add the additional current draw of Security Command keypads, smoke detector output, and any other auxiliary devices used in the system for the total current required. The total is then multiplied by the total number of standby hours required to arrive at the total ampere/hours required.
XR10/XR20 STANDBY BATTERY POWER CALCULATIONS
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XR10/XR20 Command Processor Panel |
| 50mA ______ mA |
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| 50mA ______ mA |
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| Active Zones | Qty _____ x | 1.6mA ______ mA | Qty _____ x | *2mA ______ mA |
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| Active Zone 10 |
| 4mA ______ mA |
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| 30mA ______ mA |
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| Qty _____ x | .1mA ______ mA | Qty _____ x | .1mA ______ mA |
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| Bell Output |
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| 1500mA max. ______ mA |
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670, 770, and 771 Keypads | Qty _____ x | 125mA ______ mA | Qty _____ x 125mA ______ mA |
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| Annunciator (ON) |
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| Qty _____ x | 20mA ______ mA |
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690, 693, 790, 791, and 793 Keypads | Qty _____ x | 100mA ______ mA | Qty _____ x 100mA ______ mA |
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| Annunciator (ON) |
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| Qty _____ x | 20mA ______ mA |
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692 Keypads | Qty _____ x | 30mA ______ mA | Qty _____ x | 30mA ______ mA |
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| Annunciator (ON) |
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| Qty _____ x | 10mA ______ mA |
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Auxiliary Powered Devices on |
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Terminals 7 and 11 |
| ______ mA |
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| ______ mA |
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(Other than keypads) |
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| * Based on 10% of active zones | Total Standby ___________ mA |
| Total Alarm ____________ mA |
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| in alarm condition |
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Total Standby ____________ mA x number of standby hours needed ______ = ___________ mA/hours |
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| Total Alarm + ___________ mA/hours |
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| Total | ___________ mA/hours |
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| x _.001_____ |
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| = ___________ A/hours required |
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XR10/XR20 Installation Guide |
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| 2841 E. Industrial Drive Springfield, MO | ||
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