MAC SCR Series User Manual Download Page 20 | Manualshive

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WIRING DIAGRAMS

FOR DUAL AC INPUT CHARGERS

NOTE:

When ordering parts, give information off the charger data nameplate.

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Summary of Contents for SCR Series

Page 1: ...601 International Ave Washington Missouri 63090 636 239 2772 636 239 5652 FAX M14486 0010 REV C ...

Page 2: ...tion 6 7 6 Normal Operation 7 9 7 Full Charge Sentry 9 10 8 Troubleshooting 10 17 9 Charge Profile 18 Change Procedure 10 Wiring Diagrams 19 20 Throughout this manual look for this symbol It means BE ALERT YOUR SAFETY IS INVOLVED If you do not follow these safety instructions personal injury or property damage can occur ...

Page 3: ...r To operate after the charger is connected to AC power the user simply plugs the DC cord into the battery to activate the unit That s all there is to it The charger not only immediately starts charging the battery but also monitors the battery condition determining the proper charge requirements and the correct finish before automatically terminating the charge when the battery is fully charged 3...

Page 4: ...charger in a building Grounding Instructions WARNING Improper connection of the equipment grounding conductor can result in a risk of an electric shock This battery charger must be grounded to reduce the risk of electric shock The charger is equipped with an electric cord having an equipment grounding conductor This plug must be connected to an appropriate receptacle that is properly installed and...

Page 5: ...o insure proper air circulation under and around it The area must be well ventilated because explosive hydrogen gas is generated while charging the batteries Exercise caution to avoid possible open flame or electrical sparks near the operation For general safety do not place the charger on the floor Make sure that the AC line cord and DC output cables do not obstruct traffic 4 Pre operating Proced...

Page 6: ...ld not be attempted by people who are not qualified Check that there is no open flame or electrical spark in the area CAUTION Improper AC power can damage the charger Consult data plate on the charger to verify AC input power requirements Note CAUTION in Installation Section 5 Theory of Operation The control circuit monitors battery voltage and charging current A microprocessor and silicon control...

Page 7: ...ou can call the factory Please have nameplate data information available 6 Normal Operation WARNING FOR DUAL VOLTAGE MODELS MAKE SURE TO MOVE VOLTAGE SELECTION SWITCH TO PROPER POSITION TO MATCH AC SUPPLY VOLTAGE WARNING To reduce the risk of an electric shock connect only to a properly grounded single phase 3 wire outlet Refer to grounding instructions 1 For dual AC voltage chargers set switch to...

Page 8: ...e Sequence 1 During the initial constant current stage both the Yellow LED Charger On and the Red LED Incomplete will illuminate A flashing Red LED Incomplete prior to the Yellow LED 80 Charge coming on indicates a S Sealed Valve Regulated profile has been selected NOTE Early models did not incorporate this flashing LED feature 2 When battery voltages reach 2 35 to 2 38 volts cell the Yellow LED 8...

Page 9: ...rt 5 In the event of output over current the Yellow LED Charger On will turn off and the Red LED Abnormal Cycle will flash The battery status LED either Yellow 80 Charge or Red Incomplete will remain on 7 Full Charge Sentry FCS This feature was developed to maintain batteries in a charged state while they are left in storage FCS will be found on most MAC SCR Domestic chargers This feature is not i...

Page 10: ...y Incorrect assembly may result in a risk of electric shock or fire The following procedures are intended only to determine if a malfunction may exist in the charger DANGER Hazard of Electric Shock To reduce the risk of electric shock always disconnect both electrical cords first from the AC outlet and then from the charger receptacle before attempting any maintenance cleaning repairs or service t...

Page 11: ...come on no transformer hum with charger unplugged check AC voltage to charger check circuit breaker check for continuity through DC fuse check DC plug and receptacle for good connection check for loose component wire connections PROBLEM THIS MEANS YOU SHOULD AC circuit breaker Abnormal voltage Reset trips or current spikes AC voltage switch Correct switch in wrong position or wrong supply voltage ...

Page 12: ...ss Check battery than 1 25 VPC voltage Charger will not turn on No AC power Check charger LED self test OK circuit breaker and supply voltage wall breaker Charger will not turn on Circuit board may Have qualified LED self test is partially OK have failed SCR service technician failed inspect Charger will not shut off Circuit board may Same as above have failed SCR short LED s show abnormal Refer t...

Page 13: ...tep 4 Plug DC connector into receptacle Measure voltage and unplug Measure Voltage 1 70vpc 2 16vpc No Check DC plug or connection to receptacle Step 5 Keep negative test lead as located in Step 3 Move positive test lead to other side of the circuit breaker or fuse Step 6 Plug DC connector into receptacle Measure voltage and unplug Measure Voltage 1 70vpc 2 16vpc No Replace circuit breaker or fuse ...

Page 14: ...onnector on the circuit board Step 11 keep negative test lead as located in Step 3 Place positive test lead on 16 on J1 connector Step 12 Plug DC connector into receptacle measure voltage and unplug Measure Voltage 1 70vpc 2 16vpc No Check connection from circuit breaker or fuse to 16 pin of J1 connector on circuit board Step 13 Keep positive test lead located in Step 11 Move negative test lead to...

Page 15: ...on at varistor leg as in Step 3 Move circuit breaker connection to the other terminal of circuit breaker Step 6 Plug AC cord into wall receptacle Measure voltage and unplug Measure voltage 100 130 volts AC No Replace circuit breaker Step 7 Plug DC connector into receptacle All LED s will flash through the self diagnostic sequence No Perform DC circuit checkout procedure Step 8 Place meter test lea...

Page 16: ...nd unplug Measure voltage 100 130 volts AC or 200 260 volts AC No Replace AC cord Step 6 Move meter test leads to voltage selection switch terminals where the brown and blue wires are connected Step 7 Plug AC cord into wall receptacle Measure voltage and unplug Measure voltage 100 130 volts AC or 200 260 volts AC No Check connections from IEC320 socket to voltage selection switch Step 8 Move the m...

Page 17: ...tage selection switch and to circuit breaker If O K replace voltage selection switch Step 14 Leave the meter test lead at the first circuit breaker as located in Step 10 Move the other meter test lead to the other terminal of the second circuit breaker Step 15 Plug AC cord into wall receptacle Measure voltage and unplug Measure voltage 100 130 volts AC only No Check whether circuit breaker popped ...

Page 18: ... Verify charge profile setting after charge begins A flashing incomplete LED prior to the 80 LED coming on indicates a S sealed valve regulated profile has been selected If not flashing charger is in a W wet charging profile NOTE Any chargers having a circuit with date code 9719 or earlier did not incorporate this flashing LED feature CAUTION Improper profile setting may damage the batteries To ch...

Page 19: ...WIRING DIAGRAMS FOR SINGLE INPUT VOLTAGE CHARGERS NOTE When ordering parts give information off the charger data nameplate ...

Page 20: ...WIRING DIAGRAMS FOR DUAL AC INPUT CHARGERS NOTE When ordering parts give information off the charger data nameplate ...

Page 21: ...the defective product found by MAC or MAC s Authorized Service Centers Return defective product pre paid to MAC Industrial Drive Blytheville AR 72315 Replacement and exchange parts will be warranted for the remainder of the original MAC Commercial Battery Charger Limited Warranty period or warranted for a period of ninety 90 days whichever is greater MAC and its authorized service centers shall no...

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