Connection Procedure - Helios SR250C User Manual

CONNECTION PROCEDURE

1 Check input and output voltages of system, ensure that they match the equipment.
2 Connect battery /batteries to
polarity protection, under some circumstances reverse polarity connection will not only result in the
rupture of the internal battery protection fuse but destroy the input circuitry of the unit.
3 The ECB and battery circuit may be tested at this point. To close the
sent, briefly short together the
then appear at the load terminals,
LED stays on for about 30s. Disconnect one battery lead briefly to open the ECB.
POWER OK
4 Connect load/s to
5 To minimize the volt drop at the output connections always use all the terminals provided by linking
them together.
6 Place temperature sensor probe near or on batteries.
7 Connect input power. Charger should be fully operational at this stage.
FRONT PANEL LEDS (with built-in switches)
BATTERY SYSTEM OK: LED on: Battery present and above V batl.
POWER OK:
STANDBY:
ALARMS (refer to specific data sheets for operational details)
POWER OK:
BATTSYS OK:
ALARM & BCT RELAYS
Relay contacts shown in de-energised state (ie. when there is a fault condition).
Alarm relays are energised when power supply is operating normally. BCT relay is energised when battery
condition test is in progress.
AUX
(BCT)
COM NC
OUTPUT FUSES/ MCB RATING
The battery circuit is the one which has the highest fault current potential and fuses/MCBs should be correctly
rated for the wiring used.
Specifications are subject to change without notice. No liability accepted for errors or omissions.
BATTERY
BATTERY
BATT LOW
+ and - terminals.
LOAD LOAD
Note: If the battery condition test function is enabled, pushing this switch
for approx. 2 sec will manually initiate a battery condition test.
LED on: Input power present
LED off: No input power or charger in standby mode
LED on: Charger in standby mode (no output from charger)
Note: Push standby button to turn off charger, this allows load to run off bat
tery. Push button again to turn on charger.
Approx. 30 second delay before activation.
Battery detection alarm my take up to 60 minutes to activate during normal operation
MAINS FAIL
(POWER OK)
NO COM NC
+ and - terminals. Although there is built in reverse
BATTERY
–ve and –ve terminals. The battery voltage will
LOAD
relay energises &
BATTERY LOW
(BATT SYS OK)
NO COM
with no mains power pre-
ECB
BATT SYSTEM OK
FG
NC NO
LED turns on. The
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