ME.80-28/3ASW-PK BUFFERABLE POWER SUPPLY USER'S
Contents
1. ME 80 28 3ASW PK BUFFERABLE POWER SUPPLY USER S MANUAL WARNING Touching of mains connector is dangerous after plug in this device The device MUST be grounded to reduce risk of electrical shock Ventilation should be insured for the device Input and output connectors and indicators of the device AC IN STATE BAT LOAD 230V 50 60Hz AC BAT DC lL NI leoleo Usage of the device choosing of the operating mode The device operates either as a battery charger or as a power supply It detects automatically the presence of battery after connecting to the mains If a battery is connected it operates as a battery charger if not it operates as a power supply Pay attention to the proper ventilation of the device at installation Buffered operating mode Connect the battery first Connect the output BAT to the battery and output LOAD to the load The output voltage is 27 6 V at both contacts max output current is 3 A At the design of the load please pay attention to the current of the charger this 1s determined by the loadability of the charger The total load at the outputs BAT and LOAD can be max 3 A Please pay attention to the right polarity Plug the mains voltage to the input contact AC IN 230 V 50 60 Hz 2 Operation of deep discharge The device charges the battery automatically according to I U characteristic there is no need to any intervention In case of mains power cut the device prevents the deep discharge or failur2. e of the battery by switching off the load at below 21 V battery voltage After returning of power the charging process starts If the charging voltage reaches 25 V on the battery the loading is reconnected This solution is working with safe and avoiding possible trouble 3 Power supply mode no battery is connected Application example supply of 24 VDC eqipments Connect the mains voltage to the input connector 230 V 50 60 Hz without battery Adjust the output voltage by poten tiometer installed inside the device to 24 V measured by a multimeter Max loading current is 3 A In this operating mode the charger and deep discharge functions are not in operation The meaning of the LED signals In power supply mode the battery signals do not work LED signal state LED not light Mains OK continuous No power DC output OK 7 continuous No DC output Lg Battery OK BAT continuous Battery is flat System overheating AC DC BAT flashing Power on Self test AC DC BAT Fan if exists Specifications Input 230 V 10 50 60 Hz Output voltage 24 V to 27 6 V Output current max 3 A Insulation class I Protection IP 00 Max ambient temperature 10 C 50 C Dimensions WxDxH 143 x 78 x 38 mm Built in protections against Overloading short circuit overheating overvoltage deep discharge changed polarity at battery by fuse
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