D1551_D1553 installation manual 27042022 V2
The PSU power rail is continuously monitored for over-voltage and in the event of a high voltage
condition, the output will be automatically switched off and a fault signal
LED Indications
The status of the PSU is displayed by three LEDs, see below for their meaning:
KEY:
●
LED on
○
LED off
☼
LED blinking
STATE
OK LED
GREEN
BAT LED
YELLOW
FLT LED
RED
AC ON
●
○
○
AC OFF
○
●
●
Output Off, AC ON
☼
○
○
Output Off, AC Off
○
☼
●
Output Fault, AC ON
●
○
●
Output Fault, AC OFF
○
●
●
Battery Fault, AC ON
●
●
●
Low Battery Fault, AC OFF
○
●
●
Output Off, AC ON, Battery Fault
☼
☼
●
Output Off, AC ON, Output Fault Pending
☼
○
●
Output Off, AC OFF, Output Fault Pending
○
☼
●
Output Off, AC OFF, Low Battery Fault
○
☼
●
Output On, AC ON, Over Voltage Fault
●
○
●
Output Off, AC ON, Over Voltage Fault
☼
○
●
Output Off, AC Off, Low Battery Fault
○
☼
●
Output On, AC ON, Over Voltage Fault
●
○
●
Output Off, AC ON, Over Voltage Fault
☼
○
●