EN |
23
D9412G/D7412G
| Operation & Installation Guide |
Bosch Security Systems | 10/03 | 43488E
4.2.4
Battery Supervision
When battery voltage drops to 13.8 VDC, the yellow
charging status LED lights. When the battery drops to
12.1 VDC, the red low battery LED lights and the panel
(if programmed for power supervision) transmits a
Battery Low Report in the Modem IIIa
2
communication
format. It transmits a Trouble Zn 9 Report in the BFSK
format.
If the battery is missing or shorted, the red low battery
LED flashes at the same rate as the green operation
monitor LED. If the panel is programmed for power
supervision, it transmits a Battery Missing Report in the
Modem IIIa
2
communication format, or Trouble Zn 9
Report in the BFSK format.
When battery voltage returns to 13.7 VDC, the low
battery LED darkens. If the panel is programmed for
power supervision, it transmits a Battery Restoral Report
in the Modem IIIa
2
communication format or Restoral
Zn 9 Report in the BFSK format. At 13.9 VDC, the
charging status LED darkens.
Investigate Low Battery Reports Immediately:
If
primary (AC) power is off and the discharge continues,
the panel becomes inoperative when the battery voltage
drops below 10.2 VDC.
4.2.5
Battery Charging Circuit
Float Charge
The float voltage for the battery charging circuit is
13.5 VDC to 13.9 VDC at a maximum current of 1.4 A.
If float voltage drops below 13.5 VDC, the charging
status LED illuminates.
Loss of AC Load Shed Relay Protects Battery:
During
an AC power loss, the battery supplies all power to the
security system. If the battery voltage falls below 10.2 V
during an AC power loss, a load shed relay isolates the
battery from the panel and disables the panel. Load shed
protects the battery from being damaged by deep
discharge. When AC power restores, the load shed relay
resets and battery voltage is again available.
Overcharge Load Shed With AC Present:
If more
than 1.4 A of current draw from the panel is detected,
the panel shuts down. Remove all loads to the panel and
disconnect AC power. Add a new battery and reconnect
AC power.
Reset the panel by momentarily placing the reset pin in
the disable position. See Figure 4. The red low battery
LED continues flashing until the panel is reset.
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 may generate Watchdog Reset
Reports.
4.0 Power Supply
4.2.6
Battery Discharge/Recharge Schedule
Table 9: Battery Discharge/Recharge Schedule
Discharge Cycle
AC Off:
AC Fail Report when AC fails if panel is
programmed to report AC failure at
occurrence.
13.9 VDC:
Charging float level.
13.8 VDC:
Charging status LED on.
12.1 VDC:
Low Battery and AC Fail Reports if
programmed. Low battery LED on.
10.2 VDC:
Battery load shed (processing functions
continue if AC is present).
Rescharge Cycle
AC On:
Load shed relay reset; battery charging
begins; Battery Trouble and AC Restoral
Reports sent.
13.7 VDC:
Battery Restoral Reports sent. Low
battery LED off.
13.9 VDC:
Changing status LED off; battery float
charged.
Figure 6: Charging and Battery LEDs
LEDs Off When Normal
Charging Status
Low Battery
YEL
RED
Содержание D7412G
Страница 1: ...D9412G D7412G EN Operation Installation Guide Control Panels ...
Страница 2: ...Bosch Security Systems 10 03 43488E EN 2 D9412G D7412G Operation Installation Guide ...
Страница 10: ...Bosch Security Systems 10 03 43488E EN 10 D9412G D7412G Operation Installation Guide 1 0 Introduction Notes ...
Страница 36: ...Bosch Security Systems 10 03 43488E EN 36 D9412G D7412G Operation Installation Guide 7 0 On Board Points Notes ...
Страница 56: ...Bosch Security Systems 10 03 43488E EN 56 D9412G D7412G Operation Installation Guide Notes 10 0 Arming Devices ...
Страница 60: ...Bosch Security Systems 10 03 43488E EN 60 D9412G D7412G Operation Installation Guide Notes 11 0 SDI Devices ...