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UMC SERIES

 

 

 
 

 

Operating and Service Instructions 

 
 

 

UNIVERSAL MAINTENANCE CHARGER

 

 
 

 

120/208/240/480 Vac SINGLE PHASE INPUT 

 

24/48/130 Vdc ADJUSTABLE OUTPUT

 

 

 

 

 
 
 

JA5041-01 

 

Summary of Contents for UMC Series

Page 1: ...UMC SERIES Operating and Service Instructions UNIVERSAL MAINTENANCE CHARGER 120 208 240 480 Vac SINGLE PHASE INPUT 24 48 130 Vdc ADJUSTABLE OUTPUT JA5041 01 ...

Page 2: ...A 55A AC INPUT VOLTAGE AC INPUT CURRENT 120V 25A 48A 66A 208V 17A 24A 44A 60A 240V 15A 22A 35A 51A 480V 8A 15A 17A 26A INPUT CURRENT TABLE Full output current at 120Vac input will cause the input current to exceed breaker rating IMPORTANT OPERATION NOTES The battery charger s output voltage is capable of adjustment over 145Vdc The output current limit needs to be reduced when operating at levels a...

Page 3: ...of the battery charger 6 Keep area in front of battery charger clear for at least 4ft 1 3m 7 Connect or disconnect the battery only when the battery charger is off to prevent arcing or burning 8 De energize all ac and dc inputs to the battery charger before servicing 9 Do not operate the battery charger if it has been damaged in any way Refer to qualified service personnel only 10 Do not disassemb...

Page 4: ...ions 6 SECTION V Document Control Information Manual Revision 7 Document Information 7 Online Availability Note 7 SECTION VI Parts Data Package Report Parts Data Package Report UMC 10 25Adc BB0443 00 supplemental insert or Parts Data Package Report UMC 10 50Adc BB0443 01 supplemental insert SECTION VII Supplemental Drawings Universal Maintenance Charger UMC Drawing List Data Nameplate Detail JE503...

Page 5: ...00Aac 2 needle indicating analog meter DC VOLTMETER M2 0 200Vdc 1 digital meter DC AMMETER M1 0 100Adc 1 digital meter DC OUTPUT VOLTAGE ADJUSTMENT R5 10 turn control for fine voltage adjustment DC OUTPUT CURRENT LIMIT CONTROL R12 1 turn current limit control DC VOLTAGE SELECTOR SWITCH SW1 Coarse voltage selection for 24 48 or 130V APPLICATION CONSIDERATIONS Although the battery charger is designe...

Page 6: ... or battery 24V 48V or 130V b Reduce the OUTPUT CURRENT LIMIT ADJUST control R12 to desired level This adjustment will limit output current This is helpful for two reasons Temporary dc lines are often used to connect to the dc bus and large wire may not be available for quick installation in an emergency Also the input feed may need to be connected to a source with limited current capability Reduc...

Page 7: ... means of a circuit breaker for most inputs and fuses and breaker in the 480 Vac input connection The power transformer T1 is an isolation type to prevent any currents from flowing into the dc bus from the ac line 2 Rectifier Section The Silicon Controlled Rectifier SCR bridge accepts the ac voltage from the power transformer T1 rectifies this voltage to dc and controls the voltage s magnitude so ...

Page 8: ... JE5040 and wire markers during replacement of any components 1 QUICK FIRST CHECKS Check voltage of the ac supply to ensure that it is within 10 of the value of the specified input voltage Inspect the I O connections for proper jumper configuration Turn the current limit control clockwise Examine charger for any evident loose or improper connections particularly at the control unit transformer T1 ...

Page 9: ... determine if they are damaged or not connected d Surge Suppressors SS1 SS2 The Metal Oxide Varistor MOV type of surge suppressor is used on the input and output of the battery charger If an MOV surge suppressor fails during a high energy transient it may explode This is an obvious failure and the part must be replaced When the suppressor shows an infinite resistance in both directions measured wi...

Page 10: ...ck the output ripple it should be determined that in all other respects the charger is operating normally Having determined this the ripple may be checked by connecting a sensitive ac voltmeter digital type preferred to the battery terminals and measure the ac ripple voltage If it measures more than 200 mV rms do the following 1 Check all filter capacitors C1 C2 for any physical damage 2 Check wir...

Page 11: ... factory configuration number embedded subassemblies and all included parts featuring a circuit symbol Also listed with this parts list are manufacturer s part number circuit symbol item description quantity used and identification of recommended spares if applicable STANDARD DRAWINGS Standard drawings are available for the Universal Maintenance Charger UMC which further detail the construction an...

Page 12: ...UMC SERIES Address 1075 Saint John Street Easton PA 18042 6661 Phone 610 330 9000 Fax 610 330 8510 Online www hindlepowerinc com http www atseries net HindlePower JA5041 01 pdf JA5041 01 Rev 08 2021 ...

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