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www.heliosps.com
SR250HL Series - 250 W Power Supply/Float Charger for Lead Acid Ba$eries
3. FRONT & BACK PANEL LAYOUT
1. AC INPUT IEC60320 - C13 10A
2.
DIGITAL INPUT & 1 DIGITAL OUTPUT:
I/O terminals are customizable and if used, the product will have a unique code.
3. ALARMS RELAY FORM C:
Relay contacts shown in de-energised state(ie. When there is a fault condiEon). Alarm relays are ener-
gised when power supply is operaEng normally, eg. “Power” alarm relay is energised when input voltage present.
•
DC High : DC Output High
•
POWER: Loss of mains input power. This alarm has 30 seconds delay before acEvaEon upon mains failure. PSU fails
•
DC Low: DC Output Low or BaDery voltage low if used as a charger.
4. DC CONNECTIONS
5. LED indicaEons Code:
DC OK , Power OK and Standby
6. COOMS PORT
•
RS232 (ASCII)
•
RS485 (ASCII)
•
Modbus Serial
•
SNMP, Webpages
7.
TEMPCO SENSOR (OPTIONAL):
Temperature sensor for voltage compensaEon
4. FG - Frame Ground
This terminal provides a connecEon to the metal case for earthing.
2. INTRODUCTION:
The SR250HL range is designed for use as a reliable and stable AC to DC power supply, or float charger for lead acid baDer-
ies. Note that for float charging the output voltage must be set to approximately 15% above the nominal baDery voltage
models. This is done as the default voltage for the 12V model but must be specified at Eme of order for all higher voltage
models.
FRONT PANEL
1
2
3
5
6
7
BACK PANEL
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