[Technical Notice] Checking internal battery and maintaining power supply for GV-AS / EV Controllers

alexhon · Unread post by **alexhon** » September 17th, 2018, 5:38 pm

Article ID: GV4-14-06-12-t
Released Date: 06/12/2014

Applied to
GV-AS / EV Controllers

Installing Backup Battery
To make sure GV-AS / EV Controllers can function properly during a power outage, it is highly recommended to install a backup battery. For details on how to install a backup battery, refer to the following sections in the GV-AS / EV Controller User’s Manual.

GV-AS100 / 110 / 120 through GV-ASBox: See 10.1.4.F Connecting Backup Battery.
GV-AS100 / 110 / 120 through GV-ASNet: See 10.2.4.F Connecting Backup Battery.
GV-AS210: See 4.2.4 Connecting Backup Battery.
GV-AS400: See 5.6.4 Connecting Backup Battery.
GV-AS410 / 810: See 6.2.4 Connecting Backup Battery.
GV-EV48: See 7.2.3 Connecting Backup Battery.

Note: To connect GV-AS100 / 110 / 120 with a backup battery, an optional device GV-ASBox or GV-ASNet is required.

Checking the Internal Battery on the Controller
In addition to installing a backup battery, also look out for signs that the internal battery of the controller is out of power. There are two types of internal batteries used by different GV-AS / EV Controller models: mercury and lithium batteries.

Mercury Battery (GV-AS100 / AS400)
For GV-AS100 / AS400, low battery messages and icons appear in GV-ASManager when the internal battery runs out. You can replace the mercury battery on your own when this happens. It is recommended to use CR2032 mercury battery for GV-AS100 / AS400.

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Note: Make sure the plastic insulation film under the battery is removed when using GV-AS100 / 400 for the first time. The low battery messages and icons will appear if the plastic film is not removed.

Lithium Battery (GV-AS110 / AS120 / AS210 / AS410 / AS810 / EV48)
When the controller‘s lithium battery runs out of power, the local time on the controller will be reverted back to 1999/12/31. The controller time can be found on the Web interface of the controller on the Time Setting page and in the Access Monitor / Alarm Monitor / Event Monitor of GV-ASManager.

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When you see the controller year shown as 1999 or 2000, disconnect the controller from power and reconnect it to power. If the year is still shown as 1999, the controller battery is out of power. When this occurs, connect the controller to a backup battery and maintain connection with GV-ASManager at all times. When connected to GV-ASManager, the controller’s time will be synchronized with GV-ASManager’s time.