Studer Innotec HPC7048, HPC2512, HPC4024 Transfer system, Set the transfer voltage threshold

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STUDER INNOTEC

HP-COMPACT

-Battery charge or discharge with too high currents

-Battery cable cross section too small

-Battery connections badly tightened or corroded

-Charge of the battery with external bat- tery charger

-Discharge of the battery with users not connected to the HP-COMPACT

-Work with defectuous or sulphated bat- teries

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Equalizing cycle

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Battery 75

– 100%

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Battery 50

– 75%

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Battery 25

– 50%

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Battery 0 – 25%

This means that the display can, within few minutes during the charge, commute from 25% to 75% or during the discharge, to the opposite direction.

As many of the working cases mentioned above often occur, the measure system of the HP-COMPACT takes into account, during the charge, only the peaks of the voltage undu- lation. As a consequence, the battery voltage at the start of the absorption stage, meas- ured by a voltmeter will appear deeper. By decrease of the charge current the voltage will reach the exact values.

For safety reasons, you must get the recommended charge voltage and charge currents from your battery supplier. The voltage levels and charge characteristics can be changed through Programming. The instruction for programming of battery charger is in the section „Programming“ (Chap. 5.3). The correct charging is mandatory for a safe function and a long-life of the battery.

4.7The Transfer system

When an AC voltage is at the input AC IN of the HP-COMPACT, the LED 1 AC IN is lit. When this voltage matches the lowest adjusted value set by the Turning Knob 23 TRANS- FER, and the frequency is between 44Hz and 65Hz, this voltage is switched directly to the battery charger and to the output AC OUT. The LED 7 TRANSFER is lit. The inverter is switched off and the battery charger switched on. This process is automatic, unless the charger mode or the transfer mode is disabled (see Chap. 5.5).

The maximum current of the Transfer switch is 30A (50A for HPC-7048). That means through this system, appliances up to a maximum of al 6900 Watt at 230V(11500W for HPC7048) can be operated. When the Battery Charger is working, part of this power is used for charging according to the power sharing system.

The Transfer system is protected against overload with a circuit breaker on the AC Input side of the HP-COMPACT. If the system has been overloaded, the button/pin of the fuse will pop out. To put the automatic safety system back in to operating you must push this pin back.

Note: in the Inverter operation, The HP-COMPACT generates a true sinusoidal and quartz stabilized output voltage. However if the HP-COMPACT is supplied from a grid or a gen- erator and the transfer contact is active, then you have at the output AC OUT the same voltage as that at the input. This voltage can not be modified by the HP-COMPACT !

4.7.1 Set the transfer voltage threshold

The voltage threshold of the transfer can be adjusted between 150 to 230V with the turn- ing knobs (23). From factory this value is 200V. Most appliances can work on this voltage.

User manual

HP-COMPACT V3.0 E

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Contents User and installer Manual Summary Warranty Disclaimer Quality and WarrantyGeneral Information Operating instructionsSpecial precautions PrecautionsIntroduction Remote control Battery chargerRemote control for Power Sharing Battery connectingInstallation place Mounting and installingConnection in serie Connection in parallel and in serieFixing General instructions on connectingConnections Protection cover of the terminals connectionsCabling BatteryConnection to battery Pre-installation settingsConnection to Temperature Sensor Temp Connection to Remote controlConnection to the 230Vac-consumer appliances AC Output Connection to the 230Vac Input AC InputDisplay and control parameters ControlCharger Inverter Inverter Push buttonsTurning Knobs Charge detection system „Standby Battery ConditionOverload Overheating Over TempEqualization charging Cycle of chargeCharging current Input current repartition Power sharingSet the transfer voltage threshold Transfer systemMultifunctional Contact Fast UPS- Mode for the Transfer SwitchDelayed mode of the Transfer System Temperature sensor Remote ControlProgramming Battery voltageAuxiliary contact Table of voltage and timing thresholdPrinciple Set the voltage and timing thresholdExample start of a genset with the HP-COMPACT Diagram of the different modes Power cut of the second priority loadsManual operating of Auxiliary Contact Disabling some of the HP-COMPACT functionsEC Compliance Installation MaintenanceHPC2512 HPC4024 HPC5048 HPC7048 Technical Data