D9412GV3/D7412GV3 Operation and Installation Guide 5.0

Power Supply

5.2.3

Replacing the Battery

Figure 9:

Charging and Battery LEDs

Replace batteries every 3 to 5 years under normal

 

 

 

 

use. Record the date of installation directly on the

 

 

 

 

battery.

 

 

 

 

 

 

Caution: Exceeding the maximum output

 

 

LEDs Off When Normal

 

ratings or installing the transformer in an

 

 

 

 

 

outlet that is routinely switched off causes

 

 

 

 

 

heavy discharges. Routine heavy

 

 

10.2 VDC - Battery Load Shed

 

discharges can lead to premature battery

 

 

 

 

 

YELLOW - Charging Status

 

failure.

 

 

D8132 Boost Battery Backup: Adding a D8132

 

 

RED - Low Battery - 12.1 VDC

Battery Charger Module supports additional batteries

 

 

 

 

 

 

of up to 27 Ah capacity, if required.

 

 

 

 

The control panel, plus any connected D8132

Investigate Low Battery reports immediately: If

Modules and auxiliary power supplies, must be on the

primary (AC) power is off and the discharge

same AC circuit to discharge evenly if AC power fails.

continues, the control panel becomes inoperative

The number of D8132 Modules is determined by the

when the battery voltage drops below 10.2 VDC.

number of available outlets on the same circuit. Refer

5.2.5

Battery Charging Circuit

 

to the Standby Battery and Current Rating Chart in

 

Float Charge

 

the D9412GV3/D7412GV3 Approved Applications

 

Compliance Guide (P/N: F01U143069) for battery

The float voltage for the battery charging circuit is

standby time calculations.

13.9 VDC at a maximum current of 1.4 A, less any

5.2.4

Battery Supervision

devices connected to the control panel. If the float

When battery voltage drops to 13.8 VDC, the yellow

voltage drops below 13.8 VDC due to overload or

battery discharge, the yellow Charging Status LED

Charging Status LED illuminates. When the battery

lights.

 

 

 

voltage drops to 12.0 VDC to 11.8 VDC, the red Low

 

 

 

Loss of AC Load Shed Relay protects battery:

Battery LED lights, and the keypad or keypads display

SERVC LOW BATT. The control panel (if

During an AC power loss, the battery supplies all

programmed for power supervision) sends a

power to the security system. If the battery voltage

BATTERY LOW report in the Modem IIIa2

falls below 10.0 V during an AC power loss, a load

communication format. It sends a Low System

shed relay isolates the battery from the control panel

Battery (302) report in the Contact ID format.

and disables the control panel. Load shed protects

If the battery is missing or shorted, the red Low

the battery from being damaged by deep discharge.

When AC power restores, the load shed relay

Battery LED flashes at the same rate as the green

reconnects the charging circuit on the control panel to

Operation Monitor LED. If the control panel is

the battery and the battery begins to recharge.

programmed for power supervision, it sends a

 

 

 

 

BATTERY MISSING report in the Modem IIIa2

Overcharge Load Shed With AC Present: If more

communication format, or Control Panel Battery

than 1.4 A of auxiliary current draw from the control

Missing (311) report in the Contact ID format.

panel occurs, the battery supplies the current and

When battery voltage returns to 13.7 VDC, the Low

begins to discharge. If this situation is not corrected,

the battery continues to discharge and at 11.8 VDC to

Battery LED turns off and the keypad or keypads

12.0 VDC, the keypads display Serv Low Batt.

clear the SERVC LOW BATT message. If the control

When the battery voltage drops below 10.0 VDC, the

panel is programmed for power supervision, it sends

a BATTERY RESTORAL report in the Modem IIIa2

control panel shuts down. Remove all loads to the

communication format or a Control Panel Battery

control panel and disconnect AC power. Fix the

Restored to Normal (302) report in the Contact ID

condition creating the over current. Add a new battery

format. At 13.9 VDC, the yellow Charging Status LED

and reconnect AC power.

 

stops lighting.

A shorted battery condition is created either by a

 

 

shorted cell inside the battery or by a short on

 

 

Terminals 4 and 5. A shorted battery might cause the

 

 

control panel to operate in an unsafe way. This

 

 

condition generates WATCHDOG RESET reports.

Bosch Security Systems, Inc. 10/10 F01U143070-03

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Bosch Appliances D9412GV3 manual Replacing the Battery Charging and Battery LEDs, D8132 Boost Battery Backup Adding a D8132

D9412GV3, D7412GV3 specifications

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