10
P S -1/P S U-1 Mo d u le LEDs
LED
Description
OK
ON when module is functioning OK
DC +5 V
ON when the internal 5 V supply is OK. This LED should
always be on
+Vs
PSU1: ON when the Auxiliary 24 V supply is OK (will only
display if the 24 V converter is installed).
PS-1: AC Power ON
+Va
PS-1: ON when the Auxiliary 24 V supply is OK (will only
display if the 24 V converter is installed)
BATT CHG
Battery is being charged
FL
Battery is in float charge mode
BO
Battery is in boost charge mode
LO
Battery has reached its discharged condition – (<22 V for
PSU-1/PS-1-2 or <11.3 V for PS-1-1)
+24 V
PSU1: ON when the internal 24 V supply is OK. This LED
should always be ON.
P S -1 - Ad d itio n a l Fe a tu re s
The PS-1-1 has an additional 13.8 V for powering external low power radio units. The connections are
on the DC terminal block. This output is limited to 2 A maximum at 10% duty cycle and is switched off
on low battery voltage for battery protection.
NOTE: The PS-1 is supplied with a battery temperature sensor that must be fitted to the negative (-)
terminal of the battery to ensure correct charging operation.