16
P S -10/P S -20 – Mo d u le LEDs
LED
Description (when ON)
OK *
Module is functioning OK
Vsup
AC supply input is powered. For PS-20, ON when DC input circuitry is powered.
Vb
Battery voltage supply is OK. This LED should always be on and means that the power
supply is able to charge a battery or is being powered by the battery input.
5 V
Internal 5 V supply is OK. This LED should always be on as the 5 V supply is used to
power all the modules.
Vaux
Auxiliary 24 V supply is OK (will only display if the 24 V converter is installed).
Controllable if a monitoring processor is fitted.
BATT CHG * Battery is being charged
FL *
Battery is in float charge mode
BO *
Battery is in boost charge mode
LO *
Battery has reached discharged condition (< 11.5 V± 0.2 V).
LO LED is cleared when battery > 12.4 V ± 0.2 V
* Only enabled when a monitoring processor is fitted (optional for the PS-10 and PS-20)
P S -10/P S -20 - Ad d itio n a l Fe a tu re s
The PS-10 and PS-20 have an additional DC output for powering low power radios. The connections
are on the DC terminal block. This output is switched off on low battery voltage for battery protection
and can be controlled when the monitoring processor is fitted.
The PS-10/PS-20 is supplied with an internal and external temperature sensor. When a battery is
connected, the external sensor should be mounted close to the negative terminal of the battery to
ensure correct charging operation. The lowest temperature is monitored by the monitoring processor
and used by the temperature compensated battery charging (in normal operation the internal
temperature sensor will indicate a higher temperature than the external sensor).