float charger with 3 alarms & optional
Contents
1. aA 6 A 3 ovative energies Gertie User Manual SR500 750L AC DC POWER SUPPLY amp FLOAT CHARGER with 3 alarms amp optional comms REFER TO BACK PAGE FOR CUSTOMISED VERSIONS CSRxxx 7 10 2015 Specifications are subject to change without notice No liability accepted for errors or omissions at he InsaAlavion amp Saag Safety The user is responsible for ensuring that input and output wiring segregation complies with local standards and that in the use of the equipment access is confined to operators and service personnel A low resistance earth connection is essential to ensure safety and additionally satisfactory EMI suppression see below HAZARDOUS VOLTAGES EXIST WITHIN A POWER SUPPLY ENCLOSURE AND ANY REPAIRS MUST BE CARRIED OUT BY A QUALIFIED SERVICEPERSON Electrical Strength Tests Components within the power supply responsible for providing the safety barrier between input and output are construct ed to provide electrical isolation as required by the relevant standard However EMI filtering components could be dam aged as result of excessively long high voltage tests between input output and ground Please contact our technicians for advice regarding electric strength tests Earth Leakage Where fitted EMI suppression circuits cause earth leakage currents which may be to a maximum of 3 5mA Ventilation High operating temperature is a major cause of power supply failures for example a 102. Function Power Output DC Connector type Temperature Compensation DC output Nominal voltage LAN ethernet ASCII LAN ethernet SNMP 232 RS232 485 RS485 No blank L 230V AC switch Blank 230V AC no switch U 110V AC switch G 110V AC no switch J 110V DC no switch S Stud X Plug in screw terminal Mx MIL Spec F Fan T Yes Blank No 12 24 36 48 91 96V 92 108V 93 120V A Standard PSU Float Charger D A version with alarms L D version with DC high alarm and optional comms port 500 750W CUSTOMISED VERSIONS OF SR750L CSR code BASE MODEL SPECIAL FEATURES CSR106 SR 50L24TFSL LAN om long tempco TERMS OF WARRANTY Innovative Energies Ltd warrants this product for 24 months from date of shipment against material and workmanship defects Innovative Energies liability under this warranty is limited to the replacement or repair of the defective product as long as the product has not been damaged through misapplication negligence or unauthorized modification or repair Innovative Energies Ltd 1 Heremai Street Henderson NZ Tel 64 9 835 0700 info innovative co nz www innovative co nz
3. C rise in the operating temper ature of a component will halve its expected life Therefore always ensure that there is adequate ventilation for the equipment Batteries in particular suffer shortened lifetimes if subjected to high ambient temperatures Water Dust Every effort must be made in the installation to minimise the risk of ingress of water or dust Water will almost always cause instant failure The effects of dust are slower in causing failure of electronic equipment but all electrical equip ment should be cleaned free of any dust accumulation at regular intervals Electromagnetic Interference EMI Switching power supplies and converters inherently generate electrical noise All wiring should be as short as practica ble and segregated from all equipment wiring which is sensitive to EMI Residual noise can be reduced by looping DC wiring through ferrite cores sleeves These are most effective as close to the power supply as possible and as many turns of the wire taken through the core and in the same direction as the core will accommodate External fuse protection Fuses or circuit breakers must be used in all battery circuits to protect against short circuits External fuses should be used for power supplies chargers even though they are usually internally protected Connection polarity It is critical to check the polarity carefully when connecting DC devices Some Innovative Energies models have non destructive reverse
4. Crimp lugs for stud terminal versions DC screw terminal plug in connector for X version 500 750 Watt AC DC Power Supply Float Charger SRIOO MOL STANDARD MODEL TABLE FOR SRS500L amp SR 750L Power Supply Output Volts factory default Current A Output Output Current A SR750L Output Volts SR500L factory default Battery Charger Adjustable owen range V Current A SR500L Output Current A SR750L 11 14 22 29 28 36 34 43 45 57 90 115 100 130 110 145 OPTIONS OPTIONS continued Temperature compensation for charging Earth fault alarm external to PSU Communications port MIL spec terminals Temperature sensor on 1 7m lead with adhesive pad 4mV C cell 10 Order Code TEMPCO Detects leakage to earth of DC output and provides relay output Code ALARM ME 20 60V ALARM HE 61 150V Choice of RS485 RS232 ethernet SNMP or ASCII As specified by customer Code Mx see table below Internal V I meter Mounting options 19 rack mount Wall mount enclosure Add code INT METER 2U sub rack available Code SR RM2U Optional V I meter Code SR METER PSU may be fitted into enclosure with MCBs and terminals Code SEC SR MODEL IDENTIFICATION CODES SR750L 12 T F S L 485 Communications port Input voltage and front panel standby switch Cooling
5. HIGH MANS perow FS FAL 3 ALARM TERMINAL LAYOUT 3 1 12V to 48VDC output 3 2 gt 96VDC output O O O mem eom com Com Notes 1 Refer to LED flash code below to determine whether low or high alarm 2 Relay contacts are shown in de energised state ie when there is a fault condition Alarm r relays are energised when power supply is operating normally 3 FG terminal is connected to the metal case 4 LED INDICATION CODES DC OK LED On DC output is present either from PSU or battery if connected Slow flash DC LOW Fast flash DC HIGH POWER OK LED On input power on Off no input power or short circuit on the output 5 TEMPERATURE COMPENSATION TEMPCO When temperature compensation is fitted the tempco sensor should be placed as close to the battery as possible 6 STANDBY FUNCTION Pushing the STANDBY button turns the output of the power supply off 7 COMMUNICATIONS OPTION Please refer to separate user manual if the communications option is fitted Note that a battery is re quired on the output for the communications to continue working in the event of an input power inter nal converter failure CONNECTION FOR PARALLEL REDUNDANCY Two or more SR750L power supplies may be connected in parallel for increased power or parallel redundancy Figure 1 below shows two SR750L units connected with external diodes It is essential that the wiring from each unit to the load is kept identical for equal power sharing particul
6. arly when diodes are not used ae INPUT p LOAD INPUT ALARMS BATTERIES OPTIONAL NOTE A battery is required for the communications to continue working in the event of an input power internal converter failure ovative energies SRIOO MOL DC power supply charger with 3 alarm relay outputs Ideal as a Standby Float Charger for lead acid batteries 24 Month Warranty e isolated input to output e Standalone bench top or wall mounting e Front panel controls amp indication e Suitable for float charging of lead acid batteries e Suitable for parallel operation e Conservative design for long life e Precise voltage and current control e Three relay alarm outputs e Optional temperature compensation for charging e Optional communications port RS232 RS485 or Ethernet e Protocols Modbus TCP IP SNMP or ASCII code e Optional rack mount 2U x 19 SPECIFICATIONS All specifications are typical at nominal input full load and at 20 C unless otherwise stated ELECTRICAL Input standard 230VAC 180 264 45 65Hz option 110VAC 88 132 45 65Hz Fusing Internal input fuse Constant current limit under overload and short circuit conditions except DC input ver sions which have primary current limit Overload protection Isolation 1KV DC input output earth Over voltage protection 130 of nominal output voltage Efficiency gt 85 Inrush current Soft start circ
7. polarity protection but usually a reverse polarity connection will result in a blown fuse or serious dam age to the device Glossary of terms used in our user manuals PSU power supply unit BCT battery condition test ECB electronic circuit breaker ELVD electronic low voltage discon RPP reverse polarity protection EMI electromagnetic interference nect SNMP Simple Network Management LAN local area network Protocol 28 09 2015 1 INTRODUCTION The SR750L is designed for use as a precision AC to DC power supply or float charger for lead acid batter ies Note that for float charging the output voltage must be set to approximately 15 above the nominal battery voltage The SR750L can have an optional ethernet RS485 or RS232 communications port fitted 2 CONNECTIONS lf used as a float charger always connect the positive output of the power supply to the positive terminal of the battery Where screw plug in terminals are fitted both terminals must be used if the power supply cur rent exceeds 20A This is to ensure that the current rating of the terminal block is not exceeded Connection Layouts 1 Standard stud empco sensor optional for charging OUTPUT amp ALARM TERMINALS DC HIGH an pcLow FS Optional COMMS port 2 Plug in screw terminals OUTPUT aada tempco sensor optional for charging ALARM TERMINALS DCHGH MAINS pc Low re Optional COMMS port 3 MIL SPEC AC INPUT ALARM TERMINALS DC
8. uit Output power 750W Output voltage Refer to model table Line regulation lt 0 2 over AC input range Load regulation lt 0 4 open circuit to 100 load Noise lt 1 Drift 0 03 C Hold up time 15 20 ms without battery Thermal protection Yes self resetting Yes Addition of external output diodes optional Use with external output diodes Parallel operation higher power N 1 redundancy Alarms e Mains fail e DC low e DC high this is common with the DC low alarm relay on gt 72Vdc models C NO NC changeover rated 1A 50V DC 32VAC Alarm contacts PHYSICAL AC input connector IEC320 input socket DC connections M8 brass stud or plug in screw terminal block Alarm connections Plug in screw terminal block Enclosure Powder coated steel Dimensions 225W x 70H x 304D mm excl terminals Weight 4 3 Kg Indication LEDs DC OK Power OK Standby Standby switch Turns off DC output of PSU ENVIRONMENTAL Operating temperature 0 to 50 C ambient at full load De rate linearly gt 50 C to no load 70 C Storage temperature 10 to 85 C ambient Humidity 0 95 relative humidity non condensing Cooling Fan cooled STANDARDS EMI To CISPR 22 EN55022 class A Safety To IEC950 EN60950 AS NZS3260 ACCESSORIES SUPPLIED Mounting feet together with screws AC power cord 1 5m with IEC320 socket and NZ Aust plug Mating screw terminal plug for alarm outputs
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