VS-MKII Control System
Chubb Fire & Security Pty Ltd
Technical Manual
Page 9 of 63
•
When the panel receives > 31 volts for a period in excess of 10 seconds the amber ‘POWER’ LED
will light up (Fig. 6) but no audible or visual fault will be generated. In this state, the batteries will not
be under charge.
Figure 6 – Over voltage
Note:
The green ‘POWER’ LED remains lit in this state to indicate that the panel is operable
but visually the amber LED will appear brighter.
Rechargeable back up battery
The rechargeable battery pack provides an emergency power supply in the event that primary power is lost
or isolated. The system will be in fault when it is being powered by the back up battery but will still be
operable for a minimum 96 hours (typical) provided that the battery is fully charged (2 hour charge time).
Figure 7 – Back up battery
When the battery voltage drops below 11 volts the Amber Power LED will flash continuously until the voltage
drops below 9.8 volts. At which time the system will shutdown to prevent over discharge or damage to the
battery
.